Regulatory Guide 1.85: Difference between revisions

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{{Adams
{{Adams
| number = ML12298A132
| number = ML003740365
| issue date = 10/31/1994
| issue date = 05/31/1999
| title = 0, Materials Code Case Acceptability ASME Section III Division 1
| title = 1, (Draft Was Issued as DG-1049), Materials Code Case Acceptability ASME Section III, Division 1
| author name =  
| author name =  
| author affiliation = NRC/RES
| author affiliation = NRC/RES
Line 10: Line 10:
| license number =  
| license number =  
| contact person =  
| contact person =  
| document report number = RG-1.085, Rev 30
| document report number = RG-1.85, Rev 31
| document type = Regulatory Guide
| document type = Regulatory Guide
| page count = 21
| page count = 23
}}
}}
{{#Wiki_filter:U.S. NUCLEAR REGULATORY COMMISSION
{{#Wiki_filter:
Revision 30
October 1994 REGULATORY GUIDE
OFFICE OF NUCLEAR REGULATORY RESEARCH
REGULATORY GUIDE 1.85 MATERIALS CODE CASE ACCEPTABILITY
ASME SECTION III DIVISION 1


==A. INTRODUCTION==
==A. INTRODUCTION==
Section 50.55a, "Codes and Standards,"  
Section 50.55a, "Codes and Standards," of 10 CFR  
of
Part 50, "Domestic Licensing of Production and Uti lization Facilities," requires, in part, that components of the reactor coolant pressure boundary be designed, fabricated, erected, and tested in accordance with the requirements for Class 1 components of Section III,  
10 CFR Part 50, "Domestic Licensing of Production and Utilization Facilities," requires, in part, that com- ponents of the reactor coolant pressure boundary be designed, fabricated, erected, and tested in accor- dance with the requirements for Class 1 components of Section III, "Nuclear Power Plant Components,"' of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code or equiva- lent quality standards. Footnote 6 to §50.55a states that the use of specific Code Cases may be authorized by the Commission upon request pursuant to
"Nuclear Power Plant Components,"' of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code or equivalent quality standards.
§50.55a(a) (3), which requires that proposed alterna- tives to the described requirements or portions thereof provide an acceptable level of quality and safety.


General Design Criterion 1, "Quality Standards and Records," of Appendix A, "General Design Crite- ria for Nuclear Power Plants," to 10 CFR Part 50 re- quires, in part, that structures, systems, and compo- nents important to safety be designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety function to be per- formed. Where generally recognized codes and stan- dards are used, Criterion 1 requires that they be iden-
Footnote 6 to 10 CFR 50.55a states that the use of spe cific Code Cases may be authorized by the Commission upon request pursuant to 10 CFR 50.55a(a)(3), which requires that proposed alternatives to the described re quirements or portions thereof provide an acceptable level of quality and safety.
1Copies may be obtained from the American Society of Me- chanical Engineers, United Engineering Center, 345 East 47th Street, New York, New York 10017.


tified and evaluated to determine their applicability, adequacy, and sufficiency and be supplemented or modified as necessary to ensure a quality product in keep- ing with the required safety function.
General Design Criterion 1, "Quality Standards and Records," of Appendix A, "General Design Crite ria for Nuclear Power Plants," to 10 CFR Part 50 re quires, in part, that structures, systems, and compo nents important to safety be designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety function to be per
1Copies may be obtained from theAmerican Society of Mechanical Engi neers, Three Park Avenue, New York, New York 10016-599


Criterion 30, "Quality of Reactor Coolant Pressure Boundary," of the same appendix requires, in part, that components that are part of the reactor coolant pressuie boundary be designed, fabricated, erected, and tested to the highest quality standards practical.
===0. Phone ===
(212)591-8500; fax (212)591-8501.


Appendix B, "Quality Assurance Criteria for Nu- clear Power Plants and Fuel Reprocessing Plants," to
Revision 31 May 1999
10 CFR Part 50 requires, in part, that measures be es- tablished for the control of special processing of mate- rials and that proper testing be performed.
3UIDE
formed. Where generally recognized codes and stan dards are used, Criterion 1 requires that they be identi fied and evaluated to determine their applicability, adequacy, and sufficiency and be supplemented or modified as necessary to ensure a quality product in keeping with the required safety function.


This regulatory guide lists those Section III ASME
Criterion 30, "Quality of Reactor Coolant Pressure Boundary," of the same appendix requires, in part, that components that are part of the reactor coolant pressure boundary be designed, fabricated, erected, and tested to the highest quality standards practical.
Code Cases oriented to materials and testing that are generally acceptable to the NRC staff for implementa- tion in the licensing of light-water-cooled nuclear power plants.


This regulatory guide contains no information col- lection activities and, therefore, is not subject to the requirements of the Paperwork Reduction Act of 1980
Appendix B, "Quality Assurance Criteria for Nu clear Power Plants and Fuel Reprocessing Plants," to
(44 U.S.C. 3501 et seq.).
10 CFR Part 50 requires, in part, that measures be es tablished for the control of special processing of materi als and that proper testing be performed.


==B. DISCUSSION==
This regulatory guide lists those Section III ASME  
The Boiler and Pressure Vessel Committee of the ASME publishes a document entitled "Code Cases."'
Code Cases oriented to materials and testing that are generally acceptable to the NRC staff for implementa tion in the licensing of light-water-cooled nuclear pow er plants. This guide is being revised to update the NRC
Generally, the individual Code Cases that make up this USNRC REGULATORY GUIDES
staff positions on new Code Cases, revised Code Cases, and annulled Code Cases subsequent to Revision 30 of the guide in October 1994.
Regulatory Guides are Issued to describe and make available to the public such information as methods acceptable to the NRC staff for Implement- ing specific parts of the Commission's regulations, techniques used by the staff in evaluating specific problems or postulated accidents, and data needed by the NRC staff In its review of applications for permits and licenses. Regulatory Guides are not substitutes for regulations, and com- pliance with them is not required. Methods and solutions different from those set out in the guides will be acceptable if they provide a basis for the findings requisite to the issuance or continuance of a permit or license by the Commission.


This guide was issued after consideration of comments received from the public. Comments and suggestions for improvements In these guides are encouraged at all times, and guides will be revised, as appropriate, to accommodate comments and to reflect new Information or experience.
This regulatory guide contains no information collection activities and, therefore, is not subject to the USNRC REGULATORY GUIDES
The guides are issued in the following ten broad divisions:
Regulatory Guides are issued to describe and make availableto the public such informa tion as methods acceptable to the NRC staff for implementing specific parts of the Corn-


Written comments may be submitted to the Rules Review and Directives Branch, DFIPS, ADM, U.S. Nuclear Regulatory Commission, Washing- ton, DC 20555-0001.
===1. Power Reactors ===
6. Products mission's regulations, techniques usedbythestaff in evaluating specificproblemsorpos-
2. Research and Test Reactors
7. Transportation tulated accidents, and data needed by the NRC staff in its review of applications for per-
3. Fuels and Materials Facilities
8. Occupational Health mits and licenses. Regulatory guides are not substitutes for regulations, and compliance
4. Environmental and Siting
9. Antitrust and Financial Review with them is not required. Methods and solutions differentfrom those set out in theguides
5. Materials and Plant Protection
10. General will be acceptable if they provide a basis for the findings requisite to the issuance or con tinuance of a permit or license by the Commission.


The guides are Issued In the following ten broad divisions:
Singlecopies of regulatory guides may be obtained free of charge bywriting to the Repro This guide was issued after consideration of comments received from the public. Com- duction and Distribution Services Section, Office of the Chief Information Officer, U.S. Nu ments and suggestionsfor improvements in these guides areencouraged atall times, and clear Regulatory Commission, Washington, DC 20555-0001; or by fax to (301)415-2289;
guides will be revised, as appropriate, to accommodate comments and to reflect new in- or by emall to DISTRIBUTION@NRC.GOV
formation or experience.


===1. Power Reactors===
Issued guides may also be purchased from the National Technical Information Service on Written comments may be submitted to the Rules and Directives Branch, ADM, U.S. Nu- a standing order basis. Details on this service may be obtained by writing NTIS, 5285 Port clear Regulatory Commission, Washington, DC 20555-0001.
2. Research and Test Reactors
3. Fuels and Materials Facilities
4. Environmental and Siting
5. Materials and Plant Protection


===6. Products===
Royal Road, Springfield, VA 22161.


===7. Transportation===
U.S. NUCLEAR REGULATORY COMMISSION
REGULATORY (
OFFICE OF NUCLEAR REGULATORY RESEARCH
REGULATORY GUIDE 1.85 (Draft was issued as DG-1 049)
MATERIALS CODE CASE ACCEPTABILITY
ASME SECTION III, DIVISION 1


===8. Occupational Health===
requirements of the Paperwork Reduction Act of 1980
9. Antitrust and Financial Review
(44 U.S.C. 3501 et seq.). 
10. General Copies of Issued guides may be purchased from the Government Printing Office at the current GPO price. Information on current GPO prices may be obtained by contacting the Superintendent of Documents, U.S.


Government Printing Office, Mail Stop SSOP, Washington, DC
==B. DISCUSSION==
20402-9328, telephone (202)512-2249 or (202)512-2171.
The Boiler and Pressure Vessel Committee of the ASME publishes a document entitled "Code Cases."1 Generally, the individual Code Cases that make up this document explain the intent of Code rules or provide for alternative requirements under special circum stances.
 
Issued guides may also be purchased from the National Technical Infor- mation Service on a standing order basis. Details on this service may be obtained by writing NTIS, 5285 Port Royal Road, Springfield, VA 22161.


document explain the intent of Code rules or pro- vide for alternative requirements under special circumstances.
Most Code Cases are eventually superseded by re vision to the Code and then are annulled by action of the ASME. In such cases, the intent of the annulled Code Case becomes part of the revised Code, and therefore continued use of the Code Case intent is sanctioned un der the rules of the Code. In other cases, the Code Case is annulled because it is no longer acceptable or there is no further requirement for it. A Code Case that was ap proved for a particular situation and not for a generic application should be used only for construction of the approved situation because annulment of such a Code Case could result in construction that would not meet Code requirements.


Most Code Cases are eventually superseded by revision to the Code and then are annulled by action of the ASME. In such cases, the intent of the annulled Code Case becomes part of the revised Code, and therefore continued use of the Code Case intent is sanctioned under the rules of the Code. In other cases, the Code Case is annulled because it is no longer acceptable or there is no further requirement for it. A
The Code Cases listed in this guide are limited to those cases applicable to Section III that are oriented to ward materials and testing.
Code Case that was approved for a particular situation and not for a generic application should be used only for construction of the approved situation because annulment of such a Code Case could result in construction that would not meet Code requirements.


The Code Cases listed in this guide are limited to those cases applicable to Section III that are oriented toward materials and testing.
All published Code Cases in the area of materials and testing that are applicable to Section III of the Code and were in effect on May 12, 1994,* were reviewed for inclusion in this guide. In addition to the listing of ac ceptable Code Cases, this revision of the guide includes listings of (1) Code Cases that were identified as ac ceptable in a prior version of this regulatory guide and that were annulled after the original issuance of this guide (June 1974) and (2) Code Cases that were identi fied as acceptable in a prior version of this regulatory guide and that were superseded by revised Code Cases after the original issuance of this guide (June 1974). 
Code Cases that are not listed herein are either not en dorsed or will require supplementary provisions on an individual basis to attain endorsement status.


All published Code Cases in the area of materials and testing that are applicable to Section III of the Code and were in effect on July 28, 1992, were reviewed for inclusion in this guide. In addition to the listing of acceptable Code Cases, this revision of the guide includes listings of (1) Code Cases that were identified as acceptable in a prior version of this regulatory guide and that were annulled after the original issuance of this guide (June 1974) and
The endorsement of a Code Case by this guide constitutes acceptance of its technical position for ap plications not precluded by regulatory or other require ments or by the recommendations in this or other regu latory guides. Contingent endorsement is indicated in Regulatory Position C.l.a for specific cases. However, it is the responsibility of the user to make certain that no regulatory requirements are violated and that there are  
(2) Code Cases that were identified as acceptable in a prior version of this regulatory guide and that were superseded by revised Code Cases after the original issuance of this guide (June 1974). Code Cases that are not listed herein are either not endorsed or will require supplementary provisions on an individual basis to attain endorsement status.
*Lines indicate substantive changes from Revision 30.


The endorsement of a Code Case by this guide constitutes acceptance of its technical position for applications not precluded by regulatory or other requirements or by the recommendations in this or other regulatory guides. Contingent endorsement is indicated in regulatory position C.i.a for specific cases. However, it is the responsibility of the user to make certain that no regulatory requirements are violated and that there are no conflicts with other recommended limitations resulting from Code Case usage.
no conflicts with other recommended limitations re sulting from Code Case usage.


Acceptance or endorsement by the NRC staff applies only to those Code Cases or Code Case revisions with the date of ASME approval as shown in the regulatory position of this guide. Earlier or later revisions of a Code Case are not endorsed by this guide. New Code Cases will require evaluation by the NRC staff to determine if they qualify for inclusion in the approved list. Because of the continuing change
Acceptance or endorsement by the NRC staff ap plies only to those Code Cases or Code Case revisions with the date of ASME approval as shown in the Regu latory Position of this guide. Earlier or later revisions of a Code Case are not endorsed by this guide. New Code Cases will require evaluation by the NRC staff to deter mine whether they qualify for inclusion in the approved list. Because of the continuing change in the status of Code Cases, it is planned that this guide will require pe riodic updating to accommodate new Code Cases and any revisions of existing Code Cases.
*Lines indicate substantive changes from Revision 29.
 
in the status of Code Cases, it is planned that this guide will require periodic updating to accommodate new Code Cases and any revisions of existing Code Cases.


==C. REGULATORY POSITION==
==C. REGULATORY POSITION==
1. ACCEPTABLE, CODE CASES
1. ACCEPTABLE CODE CASES  
The Section III ASME Code Cases 2 listed below (by number, date of ASME approval, and title) are acceptable to the NRC staff for application in the construction of components for light-water-cooled nu- clear power plants. Their use is acceptable within the limitations stated in the "Inquiry" and "Reply" sec- tions of each individual Code Case, within the limita- tions of such NRC or other requirements as may exist, and within the additional limitations recommended by the NRC staff given with the individual Code Cases in the listing. The categorization of Code Cases used in this guide is intended to facilitate the Code Case listing and is not intended to indicate a limitation on its usage.
The Section III ASME Code Cases 2 listed below (by number, date of ASME approval, and title) are ac ceptable to the NRC staff for application in the construction of components for light-water-cooled nuclear power plants. Their use is acceptable within the limitations stated in the "Inquiry" and "Reply" sections of each individual Code Case, within the limitations of such NRC or other requirements as may exist, and within the additional limitations recommended by the NRC staff given with the individual Code Cases in the listing. The categorization of Code Cases used in this guide is intended to facilitate the Code Case listing and is not intended to indicate a limitation on its usage.


a. Materials-oriented Code Cases (Code Case number, date of ASME approval,3 and title):
a. Materials-Oriented Code Cases (Code Case Number, Date of ASME Approval, 3 and title)
(1) Code Cases involving plate:
(1)  
I
N-7-1 Code Cases Involving Plate
N-7-1
12-13-82 High Yield Strength Steel, Sec
12-13-82
02-20-86 tion III, Division 1, Class 1
02-20-86
02-20-89 Vessels
02-20-89
02-05-92
02-05-92 High Yield Strength Steel, Section III, Division 1, Class 1 Vessels Code Case N-7-1 is acceptable subject to the fol- lowing condition in addition to those conditions specified in the Code Case: The information re- quired to be developed by Note 1 in the Code Case should be provided in each referencing Safety Analysis Report.
(2) Code Cases Involving Pipe and Tubes N-20-3  
 
11-30-88 SB-163 Nickel-Chromium-Iron
(2)  
12-16-91 Tubing (Alloy 600 and 690)  
Code Cases involving pipe and tubes:
and Nickel-Iron-Chromium Alloy 800 at a Specified Mini mum Yield Strength of 40.0  
N-20-3  
Ksi and Cold Worked Alloy  
11-30-88 SB-163 Nickel-Chromium-
800 at a yield strength of 47.0  
12-16-91 Iron Tubing (Alloy 600 andi
Ksi, Section III, Division 1, Class 1  
690)  
2A numerical listing of the Code Cases appears in the appendix.
and Nickel-Iron- Chromium Alloy  
800 at a Specified Minimum Yield Strength of  
40.0 Ksi and Cold Worked Alloy 800 at a yield strength of 47.0 Ksi, Section III,  
Division  
1, Class 1 N-188-1
05-15-78 Use of Welded Ni-Fe-Cr-Mo-
07-13-81 Cu (Alloy 825) and Ni-Cr-
07-13-84 Mo-Cb (Alloy 625) Tubing,
07-13-87 Section III, Division 1, Class 2
08-14-90
and 3
2A numerical listing of the Code Cases appears in the appen- dix.


3When more than one date is given, the earlier date is that on which the Code Case was approved by the ASME, and the later date(s) is that on which the Code Case was reaffirmed by the ASME.
3When more than one date is given, the earlier date is that on which the Code Case was approved by the ASME, and the later date(s) is that on which the Code Case was reaffirmed by the ASME.


1.85-2
1.85-2 Vt L


N-294  
N-188-1
05-15-78
07-13-81
07-13-84
07-13-87
08-14-90
08-14-93 N-294  
08-25-80  
08-25-80  
SB-148 Alloy 952 and 954,
05-25-83  
05-25-83 and SB-62 Alloy 836 Fittings,
07-30-86  
07-30-86 Section III, Division 1, Class 2
07-30-89  
07-30-89 N-379-1
07-27-92 N-404  
07-18-85 Bimetallic Tubing Section III,
04-05-84  
07-18-88 Division 1, Class 1
04-05-87  
03-14-91 N-404  
12-11-89  
04-05-84 Annealed Alloy UNS N06625
12-11-92 Use of Welded Ni-Fe-Cr-Mo Cu (Alloy 825) and Ni-Cr-Mo Cb (Alloy 625) Tubing, Section III, Division 1, Class 2 and 3 SB-148 Alloy 952 and 954, and SB-62 Alloy 836 Fittings, Section III, Division 1, Class 2 Annealed Alloy UNS N06625 Over UNS N06600 Bimetallic Tubing, Section III, Division 1, Class 1 Code Case N-404 is acceptable subject to the fol lowing conditions in addition to those conditions speci fied in the Code Case: The outside layer of the bimetal lic tubing should be limited to a minimum of 5 percent and to a maximum of 40 percent of the wall thickness.
04-05-87 Over UNS N06600 Bimetallic
 
12-11-89 Tubing, Section III, Division
The tolerance on the outside layer of material should not exceed -0.000 to +0.007 inches of the specified de sign wall thickness.
1, Class 1 Code Case N-404 is acceptable subject to the fol- lowing conditions in addition to those conditions specified in the Code Case: The outside layer of the bimetallic tubing should be limited to a mini- mum of 5 percent and to a maximum of 40 per- cent of the wall thickness. The tolerance on the outside layer of material should not exceed -0.000
to +0.007 inches of the specified design wall thick- ness.


N-418-1  
N-418-1  
07-30-86 Use of Seamless Ni-Fe-Cr-
07-30-86 Use of Seamless Ni-Fe-Cr-Mo
07-30-89 Mo-Cu Low Carbon (UNS
07-30-89 Cu Low Carbon (UNS N08028
N08028 and UNS N08904)
07-27-92 and UNS N08904) Tubing, Section III, Division 1, Classes  
Tubing, Section III, Division
2 and 3 N-439  
1, Classes 2 and 3 N-439  
02-23-87 Use of 20Cr-18Ni-6Mo (Alloy  
02-23-87 Use of 20Cr-18Ni-6Mo (Alloy
12-11-89 UNS S31254) Forgings,  
12-11-89 UNS S31254) Forgings, Plate, Seamless and Welded Pipe, and Welded Tube, Class 2 and 3 Construction, Section III, Division 1 N-441  
12-11-92 Plate, Seamless and Welded Pipe, and Welded Tube, Class 2 and 3 Construction, Section III,  
02-23-87 Use of 20Cr-18Ni-6Mo (Alloy
Division 1 N-441-1
12-11-89 UNS S31254) Fittings, Class 2 and 3 Construction, Section III, Division 1 N-466-1  
11-25-92 Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2 and 3 Construction, Section III,  
04-30-90  
Division 1 N-466-1  
Modified 9Cr-IMo Material, Section III,  
04-30-90 Modified 9Cr-iMo Material,  
Division  
02-12-93 Section III, Division 1, Classes  
1, Classes 1, 2, and 3 N-469  
1, 2, and 3 N-502
03-08-89 Martensitic Stainless Steel for
02-05-92 SA-268, Grade 26-3-3 (UNS
04-30-92 Class 1, 2, and 3 Compon- ents, Section III, Division 1 N-482
S44660) Section III, Division 1, Classes 2 and 3
03-05-90
(3) Codes Cases Involving Bars and Forgings
Direct Quenched Stainless Bar, ASTM A 479-88b, Sec- tion III, Division I
1337-11
(4)  
05-15-78 Special Type 403 Modified (N-4-11) 07-13-81 Forgings or Bars, Section III,
Code Cases involving general usage:
07-13-84 Division 1, Class 1 and CS
N-60-4
07-13-87
05-13-91 Material for Core Support Structures, Section III, Divi- sion 1 Code Case N-60-4 is acceptable subject to the fol- lowing condition in addition to those conditions specified in the Code Case: Welding of age-har- denable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition. The maximum yield strength of strain-hardened austenitic stain- less steel should not exceed 90,000 psi in view of the susceptibility of this material to environmental cracking.
08-14-90
 
08-14-93 N-370-2
N-71-15
12-05-85
12-16-86 Additional Materials for Sub-
12-05-88
12-16-89 section NF, Classes 1, 2, 3 and MC Component Supports Fabricated by Welding, Sec- tion III, Division 1 Code Case N-71-15 is acceptable. subject to the following conditions in addition to those condi- tions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component support material should not exceed
12-16-91 Modified SA-705 Grade XM-13 Forgings, Section III,
170 Ksi in view of the susceptibility of high- strength materials to brittleness and stress corro- sion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con- sidered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demonstrated by the applicant that (1)
Division 1 N-469  
the impact test results for the material meet code requirements and (2) the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b)
03-08-89 Martensitic Stainless Steel for  
the component that contains the material has es- sentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
04-30-92 Class 1, 2, and 3 Components, Section III, Division 1  
5.3, reference should be made to paragraph
(4) Code Cases Involving General Usage N-60-5
4.5.2.2, "Alternate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence presented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of tim
02-15-94 Material for Core Support Structures, Section III,  
Division 1 Code Case N-60-5 is acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition. The maximum yield strength of strain hardened austenitic stainless steel should not exceed  
90,000 psi in view of the susceptibility of this material to environmental cracking.


====e. Paragraph====
N-71-16 02-12-93 Additional Materials for Sub section NF, Classes 1, 2, 3 and MC Component Supports Fabri cated by Welding, Section III,
16.2.2 is not acceptable as written and should be repiaced with the following: When not exempted by 16.2.1, above, the postweld heat treatment N-502
Division 1 Code Case N-71-16 is acceptable subject to the fol lowing conditions in addition to those conditions speci fied in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that (a) a corrosive environment is not present and (b) the component that contains the mate rial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter-
02-05-92 SA-268, Grade 26-3-3 (UNS
S44660) Section III, Division
1, Classes 2 and 3
(3) Codes Cases involving bars and forgings:
1337-11
05-15-78 (N-4-11)  
07-13-81
07-13-84
07-13-87
08-14-90
N-370-2
12-05-85
12-05-88
12-16-91 Special Type 403 Modified Forgings or Bars, Section III,
Division 1, Class 1 and CS
Modified SA-705 Grade XM-13 Forgings, Section III,
Division 1
1.85-3
1.85-3


shall be performed in accordance with NF-4622 except that for ASTM A-7 10 Grade A material, it shall be at least 1000°F (540 'C) and shall not ex- ceed 1150°F (620'C) for Class 1 and Class 2 ma- terial and 1175°F (640'C) for Class 3 material.
nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence pre sented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of time. Paragraph 16.2.2 is not acceptable as written and should be replaced with the following: When not ex empted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F  
 
(620'C) for Class 1 and Class 2 material and 1175°F  
The new holding time at temperature for weld thickness (nominal) shall be 30 minutes for 1/2 inch or less, 1 hour per inch for thickness over 1/2 inch to 5 inches, and 5 hours plus 15 minutes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case apply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture tough- ness of Classes 1, 2, and 3 component supports shall be characterized in accordance with para- graph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis.
(640' C) for Class 3 material. The new holding time at temperature for weld thickness (nominal) shall be 30  
minutes for 1/2 inch or less, 1 hour per inch for thick ness over 1/2 inch to 5 inches, and 5 hours plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap ply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture toughness of Classes  
1, 2, and 3 component supports shall be characterized in accordance with paragraph 5.3.4 of the USNRC Stan dard Review Plan (NUREG-0800) or on a case-by-case basis.


1759-1  
1759-1  
05-15-78 (N-131-1) 07-13-81
05-15-78 Material for Internal Pressure (N-131-1) 07-13-81 Retaining Items for Pressure
12-11-81
12-11-81 Relief Valves, Section III,
12-05-84
12-05-84 Division 1, Class 1, 2, and 3
12-05-87
12-05-87  
12-03-90
12-03-90  
Material for Internal Pressure Retaining Items for Pressure Relief Valves, Section III,
12-03-93 Code Case 1759-1 is acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants using this Case should also use Code Case 1711 for the design of pres sure relief valves.
Division 1, Class 1, 2, and 3 Code Case 1759-1 is acceptable subject to the fol- lowing condition in addition to those conditions specified in the Code Case: Applicants using this Case should also use Code Case 1711 for the de- sign of pressure relief valves.


Code requirements and (2) the material is not sub- ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sus- tained loads in service.
cated Without Welding, Section III, Division 1 Code Case N-249-13 is acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
5.3.4 of the USNRC Standard Review Plan (NU
REG-0800) or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, it should be demonstrated by the owner that (1)
the impact test results for the material meet Code re quirements and (2) the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corro sive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.


N-265-1  
N-265-1  
05-19-85 Modified SA-487 Castings,
05-19-85  
05-19-88 Section III, Division 1, Class 1 N-337-1  
05-19-88
07-18-85 Use of ASTM B525-70 Grade
03-14-91
07-18-88 II, Type II, Sintered Austen-
03-14-94 N-438-3
03-14-91 itic Stainless Steel for Class 2,
07-27-92 N-440
3, and MC Component Stan- dard Supports, Section III,
02-23-87
Division 1 N-348-2
12-11-89
12-11-92 Modified SA-487 Castings, Section III, Division 1, Class 1 UNS N08367 Material, Section III, Division 1, Class 2 and 3 Construction Use of 20Cr-18Ni-6Mo (Alloy UNS J93254) Castings, Class 2 and 3 Construction, Section III, Division 1 U
N-443-1
03-08-89 High Yield Strength Cr-Mo
04-30-92 Steel, Class 1 Components, Section III, Division 1 N-205
05-15-78
07-13-81
07-13-84
07-13-87
08-14-90  
08-14-90  
Use of SA-574 Socket Head Cap Screws, Section III, Divi- sion 1 Code Case N-348-2 is acceptable subject to the following condition in addition to those conditions specified in the Code Case: Applicants should jus- tify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.
08-14-93 N-246-2 05-25-83
 
07-30-86
N-438-3
07-30-89
07-27-92 UNS N08367 Material, Sec- tion III, Division 1, Class 2 and 3 Construction N-440
07-27-92 N-249-13 05-11-94 Use of Ductile Iron SA-395 for Section III, Division 1, Class 3 Construction SB-169, Alloy C61400, Sec tion III, Division 1, Class 3 N-474-2
02-23-87 Use of 20Cr-18Ni-6Mo (Al-
12-09-93 N-492-1
12-11-89 loy UNS J93254)
05-11-94 N-497-1  
Castings, Class 2 and 3 Construction, Section III, Division 1 N-443-1  
12-09-93 Additional Material for Subsec tion NF, Classes 1, 2, 3, and MC Component Supports Fabri- Design Stress Intensities and Yield Strength Values for UNS
03-08-89 High Yield Strength Cr-Mo
N06690 With a Minimum Spe cified Yield Strength of 35 ksi, Class 1 Components, Section III, Division 1 Grade 9 Titanium Alloy, Sec tion III, Division 1, Class 1, 2, and 3 Use of Fe-Ni-Cr-Mo-N
04-30-92 Steel, Class 1 Components, Section III, Division 1 N-459
(CN-3MN) Cast Materials, Sec tion III, Division 1, Class 2 and
05-04-88 SA-508 Basic Oxygen-Ladle
3 Construction
03-14-91 Furnace Process for Code Construction, Section III, Di- vision 1 N-474-1  
1.85-4
03-05-90 Design Stress Intensities and.


.Yield Strength Values for UNS N06690 With a Mini- mum Specified Yield Strength of 35 ksi, Class 1 Compo- nents, Section III, Division 1 N-475
b. Testing-oriented Code Cases
12-11-89 Materials in Inventory, Sec- tion III, Division 1 N-492
(1) Code Case Involving Plates
(2) Code Case Involving Bars and Forgings N-329
12-11-81 Examination of Bar Material,  
12-05-84 Section III, Division 1, Class 1
12-05-87
12-03-90  
12-03-90  
Grade 9 Titanium Alloy, Sec- tion III, Division 1, Class 1, 2, and 3 N-497
12-03-93
05-13-91 Use of Fe-Ni-Cr-Mo-N
(3) Code Case Involving Pipe and Tubes Code Case Involving General Usage
(CN-3MN)
07-16-82 Use of Subsize Charpy V
Cast Materials, Section III, Division 1, Class 2 and 3 Construction I
05-19-85 Notch Specimens, Section
N-205
05-19-88 III, Division 1  
05-15-78
03-14-91
07-13-81
03-14-94
07-13-84
1334-3 (N-2)
07-13-87
1335-10
08-14-90
(N-3-10)
N-246-2
04-29-74
05-25-83
01-08-79
07-30-86
01-01-81
07-30-89
08-28-78
07-27-92 N-249-11
08-28-81
05-13-91 Use of Ductile Iron SA-395 for Section III, Division
09-16-84 Requirements for Corrosion Resisting Steel Bars and Shapes, Section III  
1, Class 3 Construction SB-169, Alloy C61400, Sec- tion III, Division 1, Class 3 Additional Material for Sub- section NF, Classes 1, 2, 3, and MC Component Supports Fabricated Without Welding, Section III, Division 1 I
Requirements for Bolting Materials, Section III
Code Case N-249-11 is acceptable subject to the following conditions in addition to those condi- tions specified in the Code Case: The fracture toughness requirements apply only to piping sup- ports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be character- ized in accordance with paragraph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, it should be demonstrated by the owner that
(1) the impact test results for the material meet
1.85-4
 
b. Testing-oriented Code Cases:
(1) Code Case involving plates:
(2)
Code Case involving bars and forgings:
N-329
12-11-81 Examination of Bar Material,
12-05-84 Section III, Division 1, Class 1
12-05-87
12-03-90
(3)
Code Case involving pipe and tubes:
(4)
Code Case involving general usage:
N-5-1  
N-5-1  
12-13-82 Nickel Chromium Age Hard-
12-13-82 Nickel Chromium Age Harden
12-13-85 enable Alloys (Alloy X750),
12-13-85 able Alloys (Alloy X750),  
Section III,  
Section III, Division 1, Classes  
Division  
1, 2, 3, MC, and CS
1, Classes 1, 2, 3, MC, and CS
1345-2 (N-6)
1345-2  
1395-4 (N-9-4)
03-09-72 Requirements for Nickel- (N-6)
03-09-72 Requirements for Nickel
03-01-79 Molybdenum-Chromium-Iron Alloys, Section III
03-01-79 Molybdenum-Chromium-Iron Alloys, Section III  
1395-4
01-08-79 SA-508, Class 2 Forgings with  
01-08-79 SA-508, Class 2 Forgings with (N-9-4)
07-01-82 Modified Manganese Content, Section III
07-01-82 Modified Manganese Con- tent, Section III
N-484-1  
1407-3
12-16-91 Real Time Radioscopic Ex amination of Welds, Class 1 Components, Section III, Divi sion 1 N-510
07-01-74 Time of Examination for (N-10)
12-09-93 Borated Stainless Steel for Class CS Core Support Struc tures and Class 1 Components, Section III, Division 1 N-525
01-08-79 Classes 1, 2, and 3, Sec-
12-09-93 Design Stress Intensities and Yield Strength Values for UNS
01-21-82 tion III Vessels N-351
N06690 with a Minimum Speci fied Yield Strength of 30 Ksi, Class 1 Components, Section III, Division 1  
07-16-82
05-19-85
05-19-88
03-14-91 Use of Subsize Charpy V-Notch Specimens, Section III, Division 1
09-17-84
09-17-87
1412-4
11-03-75
01-01-77 Modified High Yield Strength Steel for Section III, Division
1, Class 1 Vessels N-484-1
12-16-91 Real Time Radioscopic Exam- ination of Welds, Class  
1 Components, Section III,
Division 1 N-501
07-27-92 Alternative Rules to NCA-
3800, 1990 Addenda Section III, Division 1


===2. ANNULLED CODE CASES===
===2. ANNULLED CODE CASES ===
Code Cases that were endorsed by the NRC in a prior version of this guide and were later annulled by action of the ASME should be considered as deleted from the list of acceptable Code Cases as of the date of the ASME action that approved the annulment. Such Code Cases that were annulled on or after July 1,
Code Cases that were endorsed by the NRC in a prior version of this guide and were later annulled by action of the ASME should be considered as deleted from the list of acceptable Code Cases as of the date of the ASME action that approved the annulment. Such Code Cases that were annulled on or after July 1, 1974, are listed in the following by number, effective dates, 4 and title.5  
1974, are listed in the following by number, effective dates, 4 and title.5
1141-1  
1141-1  
08-31-61 Foreign Produced Steel
08-31-61 Foreign Produced Steel  
07-23-76
07-23-76
1332-7  
1332-7 (N-1-7)
01-08-79 Requirements for Steel Forg- (N-1-7)
01-08-79 Requirements for Steel Forg
07-01-82 ings, Section III, Division 1 Code Case 1412-4 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The information re- quired to be developed by Note 1 in the Code Case should be provided in each referencing Safety Analysis Report. The material given in the Inquiry section of the Code Case should be SA-508, Class
07-01-82 ings, Section III, Division 1
4b, instead of SA-508, Class 4.
4Earlier date-date Code Case was approved by ASME; later date-date Code Case was annulled. Where more than two dates appear, the last date is the date that the Code Case was annulled. The middle date (or dates)
was the date of reaffirmation of the Code Case.


1414-5
5Code Cases 1401-1,1493-1, and 1599, which were listed in the original issue of this guide, were annulled by ASME action prior to July 1, 1974.
08-29-77 High Yield Strength Cr-Mo (N-1 1-5)  
 
08-29-80
1407-3
Steel for Section III, Division
07-01-74 (N-10)  
1, Class 1 Vessels Code Case 1414-5 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The information re- quired to be developed by Note 1 in the Code Case should be provided in each referencing Safety Analysis Report.
01-08-79
01-21-82
09-17-84
09-17-87
1412-4
11-03-75
01-01-77 Time of Examination for Classes 1, 2, and 3, Section III
Vessels Modified High Yield Strength Steel for Section III, Division  
1, Class 1 Vessels Code Case 1412-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.


1L
The material given in the Inquiry section of the Code Case should be SA-508, Class 4b, instead of SA-508, Class 4.
4 23-2
03-09-72 Wrought Type 304 and J16
07-01-77 with Nitrogen Added, Sec- tions I, III, VIII, Division 1 and 2 Code Case 1423-2 was acceptable subject to com- pliance with the recommendations contained in Regulatory Guides 1.31, "Control of Ferrite Con- tent in Stainless Steel Weld Metal," and 1.44,
"Control of the Use of Sensitized Stainless Steel."
1434-1
03-09-72 Postweld Heat Treatment of
01-01-78 SA-487 Class  
8N
Steel Castings, Section III
1456-2
06-25-73 Substitution of Ultrasonic (N-15)
03-01-79 Examination for Progressive Penetrant or Magnetic Par- ticle Examinations of Partial Penetration and Oblique Nozzle Attachment Welds, Section III
1334-3
04-29-74 (N-2)
01-08-79
01-01-81
1335-10
08-28-78 (N-3-10)
08-28-81
09-16-84 Requirements for Corrosion- Resisting Steel Bars and Shapes, Section III
Requirements for Bolting Materials, Section III
4Earlier date-date Code Case was approved by ASME; later date-date Code Case was annulled. Where more, than two dates appear, the last date is the date that the Code Case was annulled. The middle date (or dates) was the date of reaffirma- tion of the Code Case.


5Code Cases 1401-1, 1493-1, and 1599, which were listed in the original issue of this guide, were annulled by ASME action prior to July 1, 1974.
1414-5 (N-11-5)
08-29-77 High Yield Strength Cr-Mo
08-29-80 Steel for Section III, Division
1, Class 1 Vessels Code Case 1414-5 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.


1423-2
03-09-72 Wrought Type 304 and 316
07-01-77 with Nitrogen Added, Sections I, III, VIII, Division 1 and 2 Code Case 1423-2 was acceptable subject to com pliance with the recommendations contained in Regu latory Guides 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," and 1.44, "Control of the Use of Sensitized Stainless Steel."
1.85-5
1.85-5
(4)
N-351


1434-1
03-09-72 Postweld Heat Treatment of
01-01-78 SA-487 Class 8N Steel Cast ings, Section III
cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.
1456-2 (N-15)
06-25-73 Substitution of Ultrasonic Ex
03-01-79 amination for Progressive Penetrant or Magnetic Particle Examinations of Partial Pene tration and Oblique Nozzle At tachment Welds, Section III
1474-1  
1474-1  
10-29-71 (N-17)  
10-29-71 (N-17)  
01-08-79
01-08-79  
01-21-82
01-21-82  
01-21-85
01-21-85  
01-21-88
01-21-88  
01-21-91 Integrally Finned Tubes for Section III
01-21-91  
1542-1
04-29-74 (N-33)
01-08-79
01-21-82
01-21-85 Type 403 Forgings or Bars for Bolting Material, Section III
1475-16  
1475-16  
03-02-74 Ferritic-Austenitic Stainless
03-02-74  
07-01-75 Steel Seamless Tubes for Section III, Class 2 and 3 Construction
07-01-75 Integrally Finned Tubes for Section III
Ferritic-Austenitic Stainless Steel Seamless Tubes for Sec tion III, Class 2 and 3 Construction
1498-1  
1498-1  
11-06-72 SA-508-Class  
11-06-72 SA-508-Class 2 and 3, Mini (N-22)  
2 and  
01-08-79 mum Tempering Temperature,
3, (N-22)  
07-01-82 Section III  
01-08-79 Minimum Tempering Tem-
07-01-82 perature, Section III
1515  
1515  
03-09-72 Ultrasonic Examination of
03-09-72 Ultrasonic Examination of  
07-01-77 Ring Forgings for Shell Sections, Section III, Class 1 Vessels
07-01-77 Ring Forgings for Shell Sec tions, Section III, Class 1 Ves sels
1521-1  
1521-1  
04-29-74 Use of H-Grades of SA-240,
04-29-74 Use of H-Grades of SA-240,  
01-01-78 SA-479, SA-336, and SA-
01-01-78 SA-479, SA-336, and SA-358, Section III  
358, Section III
Code Case 1521-1 was acceptable subject to com pliance with the recommendations contained in Regu latory Guides 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," and 1.44, "Control of the Use of Sensitized Stainless Steel."  
Code Case 1521-1 was acceptable subject to com- pliance with the recommendations contained in Regulatory Guides 1.31, "Control of Ferrite Con- tent in Stainless Steel Weld Metal," and 1.44,
"Control of the Use of Sensitized Stainless Steel."
1527  
1527  
06-26-727 Integrally Finned Tubes, (N-26)  
06-26-727 Integrally Finned Tubes, Sec (N-26)  
01-08-79 Section III
01-08-79 tion III  
01-21-82
01-21-82  
01-21-85
01-21-85  
01-21-88
01-21-88  
01-21-91
01-21-91  
1528-3  
1528-3  
11-03-75 High Strength Steel SA-508,
11-03-75 High Strength Steel SA-508,  
01-01-78 Class 2 and SA-541, Class 2 Forgings, Section III, Class 1 Components Code Case 1528-3 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The information re- quired to be developed by Note 1 in the Code Case should be provided in each referencing Safety Analysis Report.
01-01-78 Class 2 and SA-541, Class 2 Forgings, Section III, Class 1 Components Code Case 1528-3 was acceptable subject to the following condition in addition to those conditions spe
6Code Case was annulled on date as indicated, but the annulment wasfirst so indicated in Revision 12 of this guide.
 
7Corrected Date.


15296  
15296  
06-29-72 Materials for Instrument Line
06-29-72  
07-01-73 Fittings, Section III
07-01-73  
1557-3  
1531
01-08-79 Steel Products Refined by (N-37-3)  
08-14-72
07-01-82 Secondary Remelting, Section III and VIII, Division 1 and 2
03-21-77 Materials for Instrument Line Fittings, Section III  
Electrical Penetrations, Special Alloys for Electrical Penetra tion Seals, Section III
1532
08-14-72 Section III, Class 3 Compo
01-01-78 nents Made of 8 Percent and 9 Percent Nickel Steel
1542-1 (N-33)
1557-3 (N-37-3)
04-29-74
01-08-79
01-21-82
01-21-85
01-08-79
07-01-82 Type 403 Forgings or Bars for Bolting Material, Section III
Steel Products Refined by Sec ondary Remelting, Section III  
and VIII, Division 1 and 2
1567  
1567  
03-03-73 Testing Lots of Carbon and
03-03-73 Testing Lots of Carbon and  
01-01-78 Low Alloy Steel Covered Electrodes, Section III
01-01-78 Low Alloy Steel Covered Elec trodes, Section III  
1568  
1568  
03-03-73 Testing Lots of Flux Cored
03-03-73 Testing Lots of Flux Cored and
01-01-78 and Fabricated Carbon and Low Alloy Steel Welding Electrodes, Section III
01-01-78 Fabricated Carbon and Low Alloy Steel Welding Elec trodes, Section III
1571  
1571  
03-03-73 Additional Material for (N-41)  
03-03-73 (N-41)  
01-08-79 SA-234 Carbon Steel Fittings,
01-08-79  
01-21-82 Section III
01-21-82  
01-21-85
01-21-85  
1578  
1578  
06-25-73 SB-167 Nickel-Chromium- (N-43)  
06-25-73 (N-43)  
01-08-79 Iron (Alloy
01-08-79  
600)
07-01-82  
Pipe or
07-01-82 Tube, Section III
1583  
1583  
06-25-73 Use of 80-40 Carbon Steel
06-25-73  
03-21-77 Castings, Section III
03-21-77  
15876  
15876  
08-13-73 SA-508 Class 3 Forgings with
08-13-73  
12-31-75  
12-31-75  
0.4/1.0 Ni for Section III and VIII, Division 2 Construction
1590  
1590  
08-13-73 Chemical Analysis Variations,
08-13-73  
03-21-77 Section III Construction
03-21-77  
1602-1  
1602-1  
04-29-74 Use of SB-42 Alloy  
04-29-74  
122,
12-31-74 Additional Material for SA-234 Carbon Steel Fittings, Section III
12-31-74 SB-111 Alloys 122, 715 and
SB-167 Nickel-Chromium-Iron (Alloy 600) Pipe or Tube, Sec ion III
706, SB-171 Alloys 715 and
Use of 80-40 Carbon Steel Castings, Section III
706 and SB-466 Alloys 706 and 715, Section III, Class
SA-508 Class 3 Forgings with
2 and 3 Components
0.4/1.0 Ni for Section III and VIII, Division 2 Construction Chemical Analysis Variations, Section III Construction Use of SB-42 Alloy 122, SB-111 Alloys 122, 715 and  
706, SB-171 Alloys 715 and  
706 and SB-466 Alloys 706 and 715, Section III, Class 2 and 3 Components
1603  
1603  
12-17-73 Toughness Tests When Cross-
12-17-73 Toughness Tests When Cross
07-01-74 Section Limits Orientation and Location of Specimens
07-01-74 Section Limits Orientation and Location of Specimens
1605
1.85-6
11-05-73 Cr-Ni-Mo-V Bolting Material
 
11-20-78 for Section III, Class 1 Com-
Cr-Ni-Mo-V Bolting Material for Section III, Class 1 Compo nents
03-17-80
ponents
1608-1  
1608-1  
12-17-73 Use of ASME  
12-17-73 Use of ASME SB-265,  
SB-265,
03-21-77 SB-337, SB-338, SB-348, and SB-381, Grades 1, 2, 3, and 7 Unalloyed Titanium and ASTM B-363 Titanium Weld ing Fittings, Section III, Class  
03-21-77 SB-337, SB-338, SB-348, and SB-381, Grades 1, 2, 3, and 7 Unalloyed Titanium and ASTM B-363 Titanium Weld- ing Fittings, Section III Class
2 and 3 Components  
2 and 3 Components
1612  
1612  
12-17-73 Use of Type 308 Stainless (N-56)  
12-17-73 Use of Type 308 Stainless Steel (N-56)  
07-01-78 Steel Rod and Bar for Section III, Class 1, 2, 3, and CS
07-01-78 Rod and Bar for Section III,  
Construction
Class 1, 2, 3, and CS Construc tion
1613  
1613  
12-17-73 Use of SA-372 Class IV Forg-
12-17-73  
01-01-78 ings, Section III Construction
01-01-78  
1615  
1615  
12-17-73 Use of A587-73, Section III,
12-17-73  
01-01-78 Class 3 Construction
01-01-78  
1531
1532
08-14-72 Electrical Penetrations, Spe-
03-21-77 cial Alloys for Electrical Penetration Seals, Section III
08-14-72 Section III, Class 3 Compo-
01-01-78 nents Made of 8 Percent and
9 Percent Nickel Steel
6Code Case was annulled on date as indicated, but the annul- ment was first so indicated in Revision 12 of this guide.
 
7Corrected date.
 
1.85-6
 
16166  
16166  
12-17-73 Ultrasonic Examination of
12-17-73  
07-01-75 Seamless Austenitic Steel Pipe, Section III,  
07-01-75 Use of SA-372 Class IV Forg ings, Section III Construction Use of A587-73, Section III,
Class  
Class 3 Construction Ultrasonic Examination of Seamless Austenitic Steel Pipe, Section III, Class 1 Construc tion
1 Construction
16226  
16226  
03-02-74 PWHT of Repair Welds in
03-02-74 PWHT of Repair Welds in Car
01-01-76 Carbon Steel Castings, Sec- tion III, Class 1, 2, and 3
01-01-76 bon Steel Castings, Section III,  
Class 1, 2, and 3
1625  
1625  
03-02-74 Repair of Section III Class 2
03-02-74  
12-31-74 and 3 Tanks
12-31-74  
1626-1  
1626-1  
01-08-79 Normalized and Tempered (N-65-1)  
01-08-79 (N-65-1) 01-21-82  
01-21-82  
01-21-85  
1-1/4 Cr Low Alloy Steel
01-21-85 Forgings, Section I and Sec- tion III
1634-2  
1634-2  
08-13-76 Use of SB-359 for Section III,
08-13-76 (N-68)  
(N-68)  
07-01-78  
07-01-78 Division 1, Class 3 Construc- tion
16378  
16378  
04-29-74 Effective Date for Compliance
04-29-74  
01-01-75 with NA-3700 of Section III
01-01-75  
16456  
16456  
08-12-74 Use of DeLong Diagram for
08-12-74  
01-01-76 Calculating the Delta Ferrite Content of Welds in Section III, Class 1, 2, and CS Con- struction
01-01-76 Repair of Section III Class 2 and 3 Tanks Normalized and Tempered
1-1/4 Cr Low Alloy Steel Forg ings, Section I and Section III
Use of SB-359 for Section III,
Division 1, Class 3 Construc tion Effective Date for Compliance with NA-3700 of Section III
Use of DeLong Diagram for Calculating the Delta Ferrite Content of Welds in Section III, Class 1, 2, and CS  
Construction
1648  
1648  
08-12-74 SA-537 Plates for Section III,
08-12-74 SA-537 Plates for Section III,  
07-01-76 Class 1, 2, 3, and MC Com- ponents
07-01-76 Class 1, 2, 3, and MC Compo nents
16496  
16496  
08-12-74 Modified SA 453-GR 660 for
08-12-74 Modified SA 453-GR 660 for  
01-01-76 Class 1, 2, 3, and CS Con- struction
01-01-76 Class 1, 2, 3, and CS Construc tion
8Code Case 1637 was accepted only on a case-by-case basis.
 
1605
11-05-73
11-20-78
03-17-80
1698 (N-92)
06-30-757
11-20-78
07-13-81 Waiver of Ultrasonic Transfer Method, Section III, V, and VIII, Division 1 Code Case 1698 was acceptable subject to the fol lowing conditions in addition to those specified in the Code Case: The material from which the basic calibra tion block is fabricated should be of the same product form, alloy, and heat treatment as the material being ex amined. Alloys of equivalent P-number grouping may be used for the fabrication of calibration blocks if ad justments to signal height can be made to compensate for sound beam attenuation difference between the cal ibration block and the material under examination by following the transfer method procedure of T-535.1(d),
Article 5, Section V, ASME B&PV Code, 1977 edition.
 
1713
08-11-75 Small Material Items, Section
12-31-75 III, Division 1, Class 1, 2, 3, CS and MC
1714-2
08-28-78 (N-102-2) 07-13-81
06-30-84
1722-1
01-08-79 (N-107-1) 01-08-82 Postweld Heat Treatment of P-1 Material, Section III,
Class MC
Vacuum, Carbon Deoxidized SA-508 Forgings, Section III,
Division 1
1.85-7
1650  
1650  
08-12-74 Use of SA-414 Grade C for
08-12-74 Use of SA-414 Grade C for  
12-31-74 Class 2 and 3 Components, Section III, Division 1
12-31-74 Class 2 and 3 Components, Section III, Division 1  
1664  
1664  
11-04-74 Use of Cr-Ni-Fe-Mo-Cu-Cb
11-04-74 Use of Cr-Ni-Fe-Mo-Cu-Cb  
03-21-77 Stabilized Alloy Cb-3 for Section III Class 2 and 3 Construction
03-21-77 Stabilized Alloy Cb-3 for Sec tion III Class 2 and 3 Construc tion
1666  
1666  
11-04-74 Use of SB-12, Alloy 122 for
11-04-74 Use of SB-12, Alloy 122 for  
07-01-75 Section III, Class 2 and 3 Construction
07-01-75 Class 2 and 3 Construction  
1682-1  
1682-1  
08-11-75 Alternate Rules for Material
08-11-75 Alternate Rules for Material  
12-31-75 Manufacturers and Suppliers, Section III, Subarticle NA-
12-31-75 Manufacturers and Suppliers, Section III, Subarticle NA-3700  
3700
16846  
16846  
03-03-75 A637 Grade 718 for Bolting
03-03-75 A637 Grade 718 for Bolting  
01-01-76 Class 1 and 2 Construction
01-01-76 Class 1 and 2 Construction  
16906  
16906  
04-28-75 Stock Materials for Section
04-28-75 Stock Materials for Section III
01-01-77 III Construction, Section III,
01-01-77 Construction, Section III, Divi sion 1  
Division 1
1691  
1691  
04-28-75 Ultrasonic Examination in
04-28-75 Ultrasonic Examination in Lieu
01-01-78 Lieu of Radiography of Repair Welds for Vessels, Section III,
01-01-78 of Radiography of Repair Welds for Vessels, Section III,  
Class 1
Class 1
1698
06-30-757 Waiver of Ultrasonic Transfer (N-92)
11-20-78 Method, Section III, V, and
07-13-81 VIII, Division 1 eCode Case 1637 was accepted only on a case-by-case basis.


Code Case 1698 was acceptable subject to the fol- lowing conditions in addition to those specified in the Code Case: The material from which the basic calibration block is fabricated should be of the same product form, alloy, and heat treatment as the material being examined. Alloys of equivalent P-number grouping may be used for the fabrication of calibration blocks if adjustments to signal height can be made to compensate for sound beam attenuation difference between the calibration block and the material under examination by following the transfer method procedure of T-535.1(d), Article 5, Section V,
1747 (N-124)
ASME B&PV Code, 1977 edition.
1748 (N-125)
 
1754 (N-126)
1713
1755-1 (N-127)
08-11-75 Small Material Items, Section
03-01-76
12-31-75 III, Division 1, Class 1, 2, 3, CS and MC
01-08-79
1714-2
07-13-81
08-28-78 Postweld Heat Treatment of (N-102-2) 07-13-81 P-1 Material, Section III,
07-13-84
06-30-84 Class MC
07-13-87 Requirements for Martensitic Stainless Steel Forgings with
1722-1
13% Chromium and 4% Nick el, Section III, Division 1
01-08-79 Vacuum, Carbon Deoxidized (N-107-1) 01-08-82 SA-508 Forgings, Section III,
03-01-76 Low Carbon Austenitic Stain
Division 1
07-01-78 less Steel Pipe Welded With Filler Metal, Section III, Divi sion 1, Construction
01-14-77
01-07-80
12-13-82
02-20-86
12-07-87
07-01-88
01-14-77
01-07-80
02-14-83
02-20-86
02-20-89
02-20-92 Hard Surfacing by the Spray Fuse Method, Section III,  
Class 1, 2, and 3 Construction Alternative Rules for Examina tion of Welds in Piping, Sec tion III, Class 1 and 2 Construction
1724  
1724  
11-03-75 Deviation from the Specified (N-108)  
11-03-75 Deviation from the Specified (N-108)  
07-01-78 Silicon Ranges in ASME
07-01-78 Silicon Ranges in ASME Ma terial Specifications, Section III, Division 1, and VIII, Divi sion 1 and 2  
Material Specifications, Sec- tion III, Division 1, and VIII,
Division 1 and 2
1728  
1728  
11-03-75 Steel Structural Shapes and
11-03-75 Steel Structural Shapes and  
07-01-77 Small Material Products for Component Supports, Section III, Division 1 Construction
07-01-77 Small Material Products for Component Supports, Section III, Division 1 Construction  
1740  
1740  
12-22-75 Weld Metal Test, Section III,
12-22-75 Weld Metal Test, Section III,  
07-01-76 Class 1, 2, 3, MC and CS
07-01-76 Class 1, 2, 3, MC and CS  
1741-1  
1741-1  
01-14-77 Interim Rules for the Re-
01-14-77 Interim Rules for the Required
01-01-78 quired Number of Impact Tests for Rolled Shapes, Sec- tion III, Division 1, Subsec- tion NF, Component Supports
01-01-78 Number of Impact Tests for Rolled Shapes, Section III, Di vision 1, Subsection NF, Com ponent Supports  
1742  
1742  
03-01r76 Use of SB-75 Annealed
03-01-76 Use of SB-75 Annealed Copper
07-01-76 Copper Alloy  
07-01-76 Alloy 122, Section III, Divi sion 1, Class 2 Construction  
122, Section III,  
Division
1, Class  
2 Construction
1743  
1743  
03-01-76 Use of SB-98 Cu-SiB Rod
03-01-76 Use of SB-98 Cu-SiB Rod  
07-01-76 CDA651 Section III, Division.
07-01-76 CDA651 Section III, Division  
 
1, Class 2 Components  
1, Class 2 Components
1746  
1746  
03-01-76 Leak Testing of Seal Welds, (N-123)  
03-01-76 Leak Testing of Seal Welds, (N-123)  
03-01-79 Section III, Division 1, Class
03-01-79 Section III, Division 1, Class 1,  
1, 2, and 3 Construction
2, and 3 Construction
1747
1770
03-01-76 Requirements for Martensitic (N-124)  
(N-139)
01-08-79 Stainless Steel Forgings with
08-13-76 Testing of Electroslag Wire and  
07-13-81
01-01-79 Flux for Class 1, 2, 3, MC, and CS Construction, Section III,  
13%
Chromium and
4%
07-13-84 Nickel, Section III, Division 1
07-13-87
1.85-7
 
1748
03-01-76 Low Carbon Austenitic Stain- (N-125)
07-01-78 less Steel Pipe Welded With Filler Metal, Section III, Divi- sion 1, Construction
1754
01-14-77 Hard Surfacing by the Spray- (N-126)
01-07-80
Fuse Method, Section III,
12-13-82 Class 1, 2, and 3 Construction
1755-1 (N-127)
02-20-86
12-07-87
07-01-88
01-14-77
01-07-80
02-14-83
02-20-86
02-20-89
02-20-92 Alternative Rules for Exami- nation of Welds in Piping, Section III, Class 1 and 2 Construction
1794
01-14-77 Use of Seamless Al-Br, Alloy (N-157)
01-07-80
CDA 614 Pipe, Section III,
01-07-83 Division 1, Class 3
1795
01-14-77 Examination of Weld Repairs (N-158)
07-01-78 in Forgings, Section III,
Division 1, Class 1, 2, 3, MC
and CS
1798
01-14-77 Use of ASTM
A352-75,
01-01-78 Grades LCA and LCC, Sec- tion III, Division 1, Class 1,
2, and 3
1810
03-03-77 Testing Lots of Carbon Steel
03-03-80
Solid, Bare Welding Electrode or Wire, Section III, Division
1, Class 1, 2, 3, MC, and CS
18199
03-23-77 Use of Type XM-19 for
01-01-78 Construction, Section III,
Division 1, Class 1, 2, 3
1819-110,11 03-23-77 Use of Type XM-19 for (N-176-1)
03-23-80
Construction, Section III,
08-25-80
Division 1, Class 1, 2, and 3 I
1760
04-26-76 Maximum Dimensions for
01-01-78 Isolated Pores in Welds-Class
1 Components, Section III,
Division 1
Division 1
1.766
04-26-76 Testing Requirements for
07-01-77 Welding Materials, Class 1, 2,
3, MC and CS Construction, Section III, Division 1
1767
04-26-76 Examination of Tubular Prod-
01-01-77 ucts Without Filler Metal- Class 1 Construction, Section III, Division 1
1770
08-13-76 Testing of Electroslag Wire (N-139)
01-01-79 and Flux for Class 1, 2, 3, MC, and CS Construction, Section III, Division 1
1772  
1772  
08-13-76 Use of SA-453 Bolts in Serv- (N-140)  
08-13-76 (N-140)  
08-30-79 ice Below
08-30-79  
800'F Without
07-16-82  
07-16-82 Stress Rupture Tests, Section
12-31-85  
12-31-85 III, Division 1
1773  
1773  
08-13-76 Use of Other Product Forms
08-13-76  
07-01-77 of Materials for Valves, Sec- tion III, Division 1
07-01-77 Use of SA-453 Bolts in Service Below 800'F Without Stress Rupture Tests, Section III,
Division 1 Use of Other Product Forms of Materials for Valves, Section III, Division 1
1777  
1777  
08-13-76 Use of SA-106, Grade C in
08-13-76 Use of SA-106, Grade C in  
07-01-77 Class MC Construction, Sec- tion III, Division 1
07-01-77 Class MC Construction, Sec tion III, Division 1
1781  
1781 (N-147)
09-10-76 Use of Modified SA-487 (N-147)
1E
07-01-78 Grade CA6NM, Section III,
09-10-76 Use of Modified SA-487 Grade
Division 1, Class 1, 2, 3, MC
07-01-78 CA6NM, Section III, Division
or CS
1, Class 1, 2, 3, MC or CS
1782  
1782  
09-10-76 Use of Copper-Nickel Alloy (N-148)  
09-10-76 (N-148)  
08-30-79  
08-30-79  
962 for Castings, Section III,
07-16-82  
07-16-82 Division 1, Class 3 Construc-
06-30-83  
06-30-83 tion
1787  
1787  
09-10-76 Depth of Weld Repairs for
09-10-76  
01-01-78 Forgings, Section III, Division
01-01-78
1, Class 1, 2, 3, MC and CS
1793 (N-156)
Construction
1794 (N-157)
1793
1795 (N-158)
01-14-77 Structural Steel Rolled (N-156)
01-14-77  
01-07-80  
01-07-80  
Shapes, Section III, Division
02-14-83  
02-14-83  
1, Class 2, 3, and MC
02-14-86
02-14-86
01-14-77
01-07-80
01-07-83
01-14-77
07-01-78 Use of Copper-Nickel Alloy
962 for Castings, Section III,
Division 1, Class 3 Construction Depth of Weld Repairs for Forgings, Section III, Division
1, Class 1, 2, 3, MC and CS
Construction Structural Steel Rolled Shapes, Section III, Division 1, Class 2,
3, and MC
Use of Seamless Al-Br, Alloy CDA 614 Pipe, Section III,
Division 1, Class 3 Examination of Weld Repairs in Forgings, Section III, Divi sion 1, Class 1, 2, 3, MC and CS
1.85-8
1760
04-26-76 Maximum Dimensions for Iso
01-01-78 lated Pores in Welds--Class 1 Components, Section III, Divi sion 1
1766
04-26-76 Testing Requirements for
07-01-77 Welding Materials, Class 1, 2,
3, MC and CS Construction, Section III, Division 1
1767
04-26-76 Examination of Tubular Prod
01-01-77 ucts Without Filler Metal Class 1 Construction, Section III, Division 1
 
1798
01-14-77 Use of ASTM A352-75,
01-01-78 Grades LCA and LCC, Section III, Division 1, Class 1, 2, and
3
1810
03-03-77 Testing Lots of Carbon Steel
03-03-80 Solid, Bare Welding Electrode or Wire, Section III, Division
1, Class 1, 2, 3, MC, and CS
18199
03-23-77 Use of Type XM-19 for
01-01-78 Construction, Section III, Divi sion 1, Class 1, 2, 3
1819-110,11 03-23-77 (N-176-1) 03-23-80
08-25-80
08-25-83
08-25-83
1820  
1820  
03-23-77 (N-177)
(N-177)
03-17-80
03-23-77  
02-14-83
03-17-80  
01-01-84 Alternative Ultrasonic Exami- nation Technique, Section III,
02-14-83  
Division 1 N-178  
.01-01-84 Use of Type XM-19 for Construction, Section III,
05-25-77 Use of ASTM B271, CDA
Division 1, Class 1, 2, and 3 Alternative Ultrasonic Examination Technique, Section III, Division 1 N-178  
05-25-77 Use of ASTM B271, CDA  
01-01-80  
01-01-80  
954, Alloy 9C for Class 3 Construction, Section III, Di- vision 1 N-180  
954, Alloy 9C for Class 3 Construction, Section III, Divi sion 1 N-180  
07-11-77 Examination of Springs for
07-11-77 Examination of Springs for  
07-01-78 Class 1 Component Standard Supports, Section III, Divi- sion 1 N-181  
07-01-78 Class 1 Component Standard Supports, Section III,  
07-11-77 Steel Castings Refined by the
Division 1 N-181  
07-11-77 Steel Castings Refined by the  
07-11-80  
07-11-80  
Argon Decarburization Proc- ess, Section III, Division 1,
Argon Decarburization Pro cess, Section III, Division 1, Construction N-183  
1, Construction N-183  
07-11-77 Use of Modified SA-182 Grade
07-11-77 Use of Modified SA-182
01-01-80  
01-01-80  
Grade F22 for Section III,
F22 for Section III, Division 1, Class 1, 2 and 3 Construction N-190  
Division 1, Class 1, 2 and 3 Construction N-190  
08-29-77 Use of SA-455 for Class 3  
08-29-77 Use of SA-455 for Class 3
07-01-78 Components, Section III, Divi sion 1 N-204  
07-01-78 Components, Section III,
03-20-78 Use of Modified SA-508, Class
Division 1 N-204  
01-01-81  
03-20-78 Use of Modified SA-508,
3, and SA-541, Class 3 for Sec tion III, Division 1, Class 1, 2, and 3 Construction N-206
01-01-81 Class 3, and SA-541, Class 3 for Section III, Division 1, Class 1, 2, and 3 Construction
03-20-78
9This Code Case was reaffirmed as Case 1819-1. See regula- tory position 2 for the effective dates.
03-16-81
 
06-30-83 N-207-1 03-19-79
10Case 1819 (N-176) was annulled December 31, 1977.
01-21-82
 
01-21-85 Use of ASTM B151-75 Copper-Nickel Alloy 706 Rod and Bar for Section III,  
However, it was later reaffirmed to continue providing rules pertaining to external pressure charts.
Division 1, Class 3 Construc tion Use of Modified SA-479 Type XM-19 for Section III, Divi sion 1, Class 1, 2, 3, or CS  
 
Construction N-223  
"1Code Case N-176-1:
11-30-78 Requirements for Stainless  
The 3-23-80 is an annulment date.
 
This Case was allowed to expire on 3-23-80 because of an ad- ministrative error. It was reinstated on 8-25-80 with no techni- cal changes. It is, therefore, considered to be in effect during that lapse in time. The 8-25-83 is the mandatory annulment date. The Case did not appear in Revisions 18-21 of this guide because of the ASME administative error.
 
I
1.85-8
 
N-206
03-20-78 Use of ASTM
B151-75
03-16-81 Copper-Nickel Alloy 706 Rod
06-30-83 and Bar for Section III,
Division 1, Class 3 Construc- tion N-207-1
03-19-79 Use of Modified SA-479 Type
01-21-82 XM-19 for Section III,
01-21-85 Division 1, Class 1, 2, 3, or CS Construction N-223  
11-30-78 Requirements for Stainless
11-20-81 Steel Precipitation Hardening, Section III, Division 1, Class MC
11-20-81 Steel Precipitation Hardening, Section III, Division 1, Class MC
N-224-1  
N-224-1 05-11-81  
05-11-81 Use of ASTM A500 Grade B
04-05-84  
04-05-84 and ASTM A501 Structural
04-05-87  
04-05-87 Tubing for Welded Attach-
04-05-90
04-05-90  
Use of ASTM A500 Grade B
ments for Section III, Class 2,
and ASTM A501 Structural Tubing for Welded Attach ments for Section III,  
3, and MC
Class 2, 3, and MC
N-225  
N-225  
11-20-78 Certification and Identifica-
11-20-78 Certification and Identification
01-01-81 tion of Material for Compo- nent Supports, Section III,
01-01-81 of Material for Component Supports, Section III, Division
Division 1 N-227  
1 N-227  
07-09-79 Examination of Repair Welds,
07-09-79 Examination of Repair Welds,  
07-09-82 Section III, Class 2 and 3 Tanks N-242-1  
07-09-82 Section III, Class 2 and 3 Tanks N-242-1  
04-10-80  
04-10-80  
Materials Certification, Sec-
05-06-83  
05-06-83 tion III, Division 1, Classes 1,
06-30-84 Materials Certification, Section III, Division 1, Classes 1, 2, 3, MC, and CS Construction Code Case N-242-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Applicants should identify in their Safety Analysis Reports the components and sup ports for which the Code Case is being applied and should specify the respective paragraphs of the Code Case.
06-30-84
 
2, 3, MC, and CS Construc- tion Code Case N-242-1 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: Applicants should identify in their Safety Analysis Reports the com- ponents and supports for which the Code Case is being applied and should specify the respective paragraphs of the Code Case.
9This Code Case was reaffirmed as Case 1819-1. See Regulatory Position
2, Case 1819-1, for the effective dates.
 
10Case 1819 (N-176) was annulled December 31,1977. However, itwas later reaffirmed to continue providing rules pertaining to external pres sure charts.
 
llCode Case N-176-1: The 3-23-80 is an annulment date. This Casewas allowed to expire on 3-23-80 because of an administrative error. It was reinstated on 8-25-80 with no technical changes. It is, therefore, con sidered to be in effect during that lapse in time. The 8-25-83 is the man datory annulment date. The Case did not appear in Revisions 18-21 of this guide because of the ASME administrative error.


N-245  
N-245  
07-09-79 Use of ASTM B61-76 and
07-09-79  
07-16-82 B62-76 Copper Alloy Castings
07-16-82
07-17-85 for Section III, Division 1, Class 3 Construction N-246  
07-17-85 Use of ASTM B61-76 and B62-76 Copper Alloy Castings for Section III, Division 1, Class 3 Construction N-246  
07-09-79 Use of SB-169, Alloy CA
07-09-79 Use of SB-169, Alloy CA 614,
09-07-82  
09-07-82 Section III, Division 1, Class 3 N-248  
614, Section III, Division 1, Class 3 N-248  
08-30-79 Alternative Reference Radio
08-30-79 Alternative Reference Radio-
07-01-80 graphs, Section III, Division 1, Classes 1, 2, 3, MC, and CS  
07-01-80  
Construction
graphs, Section III, Division
1.85-9
1, Classes 1, 2, 3, MC, and CS Construction N-259  
 
01-07-80  
N-259  
Ni-Cu-Al Bolting Material SB
01-07-80 Ni-Cu-Al Bolting Material SB  
02-14-83  
02-14-83  
164 Modified, Section III,
164 Modified, Section III,  
01-01-84 Division 1, Class 3 N-265 12 
01-01-84 Division 1, Class 3 N-26512
01-07-80
01-07-80 Modified SA-487 Castings,
09-01-83
09-01-83 Section III, Division 1, Class 1
12-31-84
12-31-84  
05-19-85 N-267  
05-19-85 N-267  
01-07-80
01-07-80  
07-01-81 N-274  
Double-Wall Radiography,
03-17-80
07-01-81 Section III, Division 1, Class 1 and 2 N-274  
09-07-82
03-17-80  
06-30-86 Modified SA-487 Castings, Section III, Division 1, Class 1 Double-Wall Radiography, Section III, Division 1, Class 1 and 2 Alternative Rules for Exami- nation of Weld Repairs for Section III, Division 1 Con- struction Code Case N-274 was acceptable subject to the following condition13 in addition to those condi- tions specified in the Code Case. Paragraph 6 should be expanded as follows: The ultrasonic examination procedures shall be proven by actual demonstration, to the satisfaction of the Author- ized Nuclear Inspector, that the procedures are capable of detecting unacceptable cracks accord- ing to Section XI requirements.
09-07-82  
06-30-86 Alternative Rules for Examina tion of Weld Repairs for Section III, Division 1 Construction Code Case N-274 was acceptable subject to the fol lowing condition 13 in addition to those conditions spe cified in the Code Case. Paragraph 6 should be expand ed as follows: The ultrasonic examination procedures shall be proven by actual demonstration, to the satisfac tion of the Authorized Nuclear Inspector, that the pro cedures are capable of detecting unacceptable cracks according to Section XI requirements.


N-277  
N-277  
03-17-80  
03-17-80  
Use of Type XM-19 Austen-
Use of Type XM-19 Austenitic
09-17-80  
09-17-80 Stainless Steel for Section III,  
itic Stainless Steel for Sec- tion III, Division 1, Class MC
Division 1, Class MC  
Construction N-295  
Construction N-295  
01-15-81 NCA-1140,
01-15-81  
Materials, Sec-
12-11-81  
12-11-81 tion III, Division 1
06-30-82 NCA-1140, Materials, Section III, Division 1 N-296  
06-30-82 N-296  
11-17-80  
11-17-80  
Welding Material, Section III,
Welding Material, Section III,  
12-01-83 Division 1 Construction N-298  
12-01-83 Division 1 Construction N-298  
11-17-80  
11-17-80  
Examination of Component
Examination of Component  
12-01-83 Supports, Section 11, Division
12-01-83 Supports, Section III, Division  
1, Class 1, 2, 3, and MC
1, Class 1, 2, 3, and MC
N-299-1  
N-299-1  
07-18-85 Use of Nickel-Chromium-
07-18-85  
02-23-87 Molybdenum-Columbium Al- loy 625 Forgings, Section III,
02-23-87 Use of Nickel-Chromium Molybdenum-Columbium Alloy 625 Forgings, Section III, Division 1, Class 2 and Class 3 Components
Division 1, Class 2 and Class 3 Components N-310-.
12Code Case N-265 was allowed to expire on 1-7-83 because of an ad ministrative error. It was reinstated on 9-1-83 with no technical changes. The Case is, therefore, considered in effect during that period of time. Again, Code Case N-265 was allowed to expire on 12-31-84 (mandatory annulment date). It was reinstated as N-265-1 on  
08-14-81 Cerification of Bolting Mate-
5-19-85. Because of the circumstances and because there were no changes in the Code Case, the NRC considers that this Case was in ef fect during the period of 12-31-84 through 5-19-85.
07-01-82 rials, Section III, Division 1, Class 1, 2, 3, MC and CS
12Code Case N-265 was allowed to expire on 1-7-83 because of an administrative error. It was reinstated on 9-1-83 with no technical changes. The Case is, therefore, consid- ered in effect during that period of time. Again, Code Case N-265 was allowed to expire on 12-31-84 (mandatory annul- ment date).  
It was reinstated as N-265-1 on  
5-19-85.
 
Because of the circumstances and because there were no changes in the Code Case, the NRC considers that this Case was in effect during the period of 12-31-84 through 5-19-85.
 
1 3The reason for the conditional acceptance of paragraph 6 is to make certain that there is a qualified ultrasonic testing proce- dure capable of detecting small flaws and differentiating the small flaws from geometric reflectors. This paragraph does not in any way alter the acceptance criteria as specified in paragraph
3.


1.85-9
13The reason for the conditional acceptance of paragraph 6 is to make cer tain that there is a qualified ultrasonic testing procedure capable of de tecting small flaws and differentiating the small flaws from geometric reflectors. This paragraph does not in any way alter the acceptance cri teria as specified in paragraph 3.


Code Case N-310-1 was acceptable subject to the following conditions in addition to those condi- tions specified in the Code Case: Each applicant who applies the Code Case should indicate in the referencing Safety Analysis Report (1) in what way the bolting does not meet NCA-3800  
N-310-1 08-14-81 Certification of Bolting Materi
(or NA-3700), (2) where the bolting will be used in the plant, and (3) how it will be shown that the bolting material properties required by the Equip- ment Support Design Specification are present in the actual bolting material.
07-01-82 als, Section III, Division 1, Class 1, 2, 3, MC and CS
Code Case N-310-1 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: Each applicant who applies the Code Case should indicate in the referencing Safety Analysis Report (1) in what way the bolting does not meet NCA-3800 (or NA-3700), (2) where the bolting will be used in the plant, and (3) how it will be shown that the bolting material properties required by the Equipment Support Design Specification are present in the actual bolting material.


N-317  
N-317  
07-13-81 ASTM A276 Bar Section III,
07-13-81 ASTM A276 Bar Section III,  
07-01-82 Division 1 N-321-1  
07-01-82 Division 1 N-321-1  
12-05-85 Use of Modified SA-249,
12-05-85 Use of Modified SA-249,  
12-05-88 Grade TP 304, Section III,
12-05-88 Grade TP 304, Section III, Di vision 1, Class 1 N-337-1
Division 1, Class 1 N-342  
07-18-85 Use of ASTM B525-70 Grade
04-02-82 Use of SA-249 and SA-312
07-18-88
04-02-85 Type  
11, Type II, Sintered Austentic
317 Stainless Steel, Section III,  
03-14-91 Stainless Steel for Class 2, 3,
Division  
03-14-94 and MC Component Standard Supports, Section III, Divi sion 1 N-342  
1, Classes 1, 2, and 3 N-348  
04-02-82 Use of SA-249 and SA-312  
09-09-82 Use of SA-574 Socket Head
04-02-85 Type 317 Stainless Steel, Sec tion III, Division 1, Classes 1,  
09-07-8514 Cap Screws, Section III,Divi- sion 1 Code Case N-348 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: Applicants should jus- tify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.
2, and 3 N-348  
09-09-82 Use of SA-574 Socket Head  
09-07-8514 Cap Screws, Section III, Divi sion 1 Code Case N-348 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants should justify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.


N-348-1  
N-348-1  
09-07-8514 Use of SA-574 Socket Head
09-07-8514 Use of SA-574 Socket Head  
02-20-86 Cap Screws, Section III, Divi-
02-20-86 Cap Screws, Section III, Divi
02-20-89 sion 1 Code Case N-348-1 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: Applicants should jus- tify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.
02-20-89 sion 1 Code Case N-348-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Applicants should justify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.
 
14Code Case N-348 was annulled on 9-7-85. It was reinstated as N-348-1 on 2-20-86. Because of the circumstances and because there were no changes in the Code Case, the NRC considers that the Code Case was in effect during the period 9-7-85 through 2-20-86.


N-352-1  
1.85-10
07-18-85 Use of SA-638 Grade 660
 
06-30-86 Forgings and Bars Below
N-348-2 08-14-90 Use of SA-574 Socket Head
08-14-93 Cap Screws, Section III, Divi sion 1 Code Case N-348-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Applicants should justify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.
 
N-352-1 07-18-85 Use of SA-638 Grade 660  
06-30-86 Forgings and Bars Below  
700'F Without Stress Rupture Tests, Section III, Division 1 N-353  
700'F Without Stress Rupture Tests, Section III, Division 1 N-353  
07-16-82 Marking of SA-354 Grade BD
07-16-82  
05-19-85 Bolting, Section III,
05-19-85  
Divi-
09-05-88 N-367  
09-05-88 sion 1 N-367  
02-14-83  
02-14-83 SA-372 Type V, Grade 1,
02-19-86
02-19-86 Class B,  
02-19-89 Marking of SA-354 Grade BD
Section III,  
Bolting, Section III, Division 1 SA-372 Type V, Grade 1, Class B, Section III, Division 1 N-371-1 07-18-85
Divi-
12CR-1W-1Mo-1/4V Marten
02-19-89 sion 1
07-18-88 sitic Stainless Steel Valve In ternals, Section III, Division 1 N-372
14Code Case N-348 was annulled on 9-7-85. It was reinstated as N-348-1 on 2-20-86. Because of the circumstances and be- cause there were no changes in the Code Case, the NRC consid- ers that the Code Case was in effect during the period 9-7-85 through 2-20-86.
02-14-83 SB-163 Ni-Fe-Cr-Mo-Cu Alloy
12-31-83
825 (UNS N08825) Tubing, Section III, Division 1 N-378
10-28-83 Examination of Piping Support
10-28-8615 Material, Section III, Division
1, Class 1 N-379-1 07-18-85  
07-18-88
03-14-91
07-18-91 N-388
07-25-83
07-30-86
02-23-87 Bimetallic Tubing Section III,
Division 1, Class 1 Component Support Bolting, Section III, Division 1, Classes
2, 3, and MC
N-398
02-20-84 Reporting of Charpy-V Notch
02-20-87 Test Results, Section III, Divi sion 1 Code Case N-398 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: The Code Case is not acceptable to steam generator or reactor coolant pump supports.
 
Applicants wishing to use this Code Case should indi cate in the Safety Analysis Report the component sup ports to which the case is applied for review on a case by-case basis.


N-371-1
15The annulment date of 12-31-84 that was listed in Revisions 24 and 25 was in error. The annulment date should be 10-28-86.
07-18-85
12CR-1W-1Mo-1/4V Marten-
07-18-88 sitic Stainless Steel Valve Internals, Section III, Divi- sion 1 N-372
02-14-83 SB-163 Ni-Fe-Cr-Mo-Cu
12-31-83 Alloy
825 (UNS
N08825)
Tubing, Section III, Division 1 N-378
10-28-83 Examination of Piping Sup-
10-28-8615port Material, Section III,
Division 1, Class
1 N-388
07-25-83 Component Support Bolting,
07-30-86 Section III,
Division
1,
02-23-87 Classes 2, 3, and MC
N-398
02-20-84 Reporting of Charpy-V Notch
02-20-87 Test Results, Section III,
Division 1 Code Case N-398 is acceptable subject to the fol- lowing condition in addition to those conditions specified in the Code Case: The Code Case is not acceptable to steam generator or reactor coolant pump supports. Applicants wishing to use this Code Case should indicate in the Safety Analysis Report the component supports to which the case is applied for review on a case-by-case basis.


N-470  
N-459
03-08-89 Class MC Material Require-
05-04-88
03-08-92 ments [NE-2121(c)], Section III, Division 1
03-14-91
3.
03-14-94 SA-508 Basic Oxygen-Ladle Furnace Process for Code Construction, Section III, Divi sion 1 N-470  
03-08-89 Class MC Material Require
03-08-92 ments [NE-2121(c)], Section III, Division 1 N-475
12-11-89 Materials in Inventory, Section
12-11-92 III, Division 1 N-482
03-05-90 Direct Quenched Stainless Bar,
03-05-93 ASTM A 479-88b, Section III,
Division 1 N-501
07-27-92 Alternative Rules to
12-31-93 NCA-3800, 1990 Addenda Section III, Division 1


REVISED CODE CASES
===3. REVISED CODE CASES ===
Code Cases that were endorsed by the NRC in a prior version of this guide and were superseded by revised Code Cases on or after July 1, 1974, should be considered as not endorsed as of the date of the ASME action that approved the revised version of the Code Cases. These Code Cases that are no longer endorsed are listed in the following by number, effective dates,16 and title.' 7
Code Cases that were endorsed by the NRC in a prior version of this guide and were superseded by re vised Code Cases on or after July 1, 1974, should be considered as not endorsed as of the date of the ASME  
action that approved the revised version of the Code Cases. These Code Cases that are no longer endorsed are listed in the following by number, effective dates, 16 and title. 17
1332-6  
1332-6  
03-09-72 Requirements for Steel Forg-
03-09-72 Requirements for Steel Forg
01-08-79 ings, Section III and VIII,
01-08-79 ings, Section III and VIII, Divi sion 2
Division 2
1335-9  
1335-9  
04-29-74 Requirements for Bolting
04-29-74  
08-28-78 Materials
08-28-78  
1337-9  
1337-9  
04-29-74 Special Type 403 Modified
04-29-74  
04-28-75 Forgings or Bars, Section III
04-28-75  
1337-10  
1337-10 04-28-75  
04-28-75 Special Type 403 Modified
05-15-78  
05-15-78 Forgings or Bars, Section III
1344-5
15The annulment date of 12-31-84 that was listed in Revi- sions 24 and 25 was in error. The annulment date should be
04-29-74 (N-5)
10-28-86.
01-08-79
01-21-82
12-13-82 Requirements for Bolting Materials Special Type 403 Modified Forgings or Bars, Section III  
Special Type 403 Modified Forgings or Bars, Section III
Nickel-Chromium, Age-Har denable Alloys (Alloy X750),
Section III
1358-5
11-03-75 High Yield Strength Steel, Sec (N-7)
01-08-79 tion III, Division 1, Class 1
01-21-82 Vessels
12-13-82 Code Case 1358-5 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.


16Earlier date-date Code Case was approved by ASME;
16Earlier date-date Code Case was approved by ASME; later date---date revision of Code Case was approved by ASME.
later date-date revision of Code Case was approved by ASME.


17Code Cases 1334-2, 1337-7, 1344-3, 1484, 1521, and
17Code Cases 1334-2, 1337-7, 1344-3, 1484, 1521, and 1542, which were listed in the original issue of this guide, were revised by the ASME  
1542, which were listed in the original issue of this guide, were revised by the ASME prior to July 1, 1974.
prior to July 1, 1974.


I
1.85-11
1.85-10
 
1344-5
04-29-74 (N-5)
01-08-79
01-21-82
12-13-82 Nickel-Chromium, Hardenable Alloys X750), Section III
Age- (Alloy
1358-5
11-03-75 High Yield Strength Steel, (N-7)
01-08-79 Section III, Division 1, Class 1
01-21-82 Vessels
12-13-82 Code Case 1358-5 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The information re- quired to be developed by Note 1 in the Code Case should be provided in each referencing Safety Analysis Report.


1395-3  
1395-3  
11-06-72 SA-508, Class 2 Forgings with
11-06-72 SA-508, Class 2 Forgings with  
01-08-79 Modified Manganese Con- tent, Section III or Section VIII, Division 2
01-08-79 Modified Manganese Content, Section III or Section VIII, Di vision 2  
1407-2  
1407-2  
06-26-72 Time of Examination for Class
06-26-72 Time of Examination for Class  
07-01-74  
07-01-74  
1,  
1, 2, and 3, Section III Vessels  
2, and  
3, Section III
Vessels
1414-3  
1414-3  
11-03-75 High Yield Strength Cr-Mo
11-03-75 High Yield Strength Cr-Mo  
03-01-76 Steel for Section III, Division
03-01-76 Steel for Section III, Division  
1, Class 1 Vessels Code Case 1414-3 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The information re- quired to be developed by Note 1 in the Code Case should be provided in each referencing Safety Analysis Report.
1, Class 1 Vessels Code Case 1414-3 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.


1414-4  
1414-4  
03-01-76 High Yield Strength Cr-Mo
03-01-76 High Yield Strength Cr-Mo  
08-09-77 Steel for Section III, Division
08-09-77 Steel for Section III, Division  
1, Class 1 Vessels Code Case 1414-4 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The information re- quired to be developed by Note 1 in the Code Case should be provided in each referencing Safety Analysis Report.
1, Class 1 Vessels Code Case 1414-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.


1484-1  
1484-1  
04-29-74 SB-163 Nickel-Chromium-
04-29-74 SB-163 Nickel-Chromium-Iron
11-04-74 Iron Tubing (Alloy 600) at a Specified Minimum Yield Strength of 40.0 Ksi, Section III, Class 1
11-04-74 Tubing (Alloy 600) at a Speci fied Minimum Yield Strength of 40.0 Ksi, Section III, Class 1  
1484-2  
1484-2  
11-04-74 SB-163 Nickel-Chromium-
11-04-74 SB-163 Nickel-Chromium-Iron
08-13-76 Iron Tubing (Alloy 600 and
08-13-76 Tubing (Alloy 600 and 690) at a Specified Minimum Yield Strength of 40.0 Ksi, Section III, Class 1
690) at a Specified Minimum Yield Strength of 40.0 Ksi, Section III, Class 1
1484-3 (N-20)
1484-3  
08-13-76  
08-13-76 SB-163 Nickel-Chromium- (N-20)
08-30-79  
08-30-79 Iron Tubing (Alloy 600 and
07-16-82  
07-16-82  
690)  
05-19-85
and Nickel-Iron-
09-05-85 SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690)  
05-19-85 Chromium Alloy 800  
and Nickel-Iron-Chromium Alloy 800 at a Specified Mini mum Yield Strength of 40.0  
at a
Ksi, Section III, Division 1, Class 1 N-20-1  
09-05-85 Specified Minimum Yield Strength of 40.0 Ksi, Section III, Division 1, Class 1 N-20-1  
09-05-85 SB-163 Nickel-Chromium-Iron
09-05-85 SB-163 Nickel-Chromium-
12-07-87 Tubing (Alloy 600 and 690)  
12-07-87 Iron Tubing (Alloy 600 and
and Nickel-Iron-Chromium Alloy 800 at a Specified Mini mum Yield Strength of 40.0  
690)  
Ksi, Section III, Division 1, Class 1 N-20-2  
and Nickel-Iron- Chromium Alloy 800  
12-07-87 SB-163 Nickel-Chromium-Iron
at a Specified Minimum Yield Strength of 40.0 Ksi, Section III, Division 1, Class 1 N-20-2  
11-30-88 Tubing (Alloy 600 and 690)  
12-07-87 SB-163 Nickel-Chromium-
and Nickel-Iron-Chromium Alloy 800 at a Specified Mini- mum Yield Strength of 40.0  
11-30-88 Iron Tubing (Alloy 600 and
Ksi, and Cold Worked Alloy  
690)  
800 at a Yield Strength of 47.0  
and Nickel-Iron- Chromium Alloy 800 at a Specified Minimum Yield Strength of 40.0 Ksi, and Cold Worked Alloy 800 at a Yield Strength of 47.0 Ksi, Section III, Division 1, Class 1
Ksi, Section III, Division 1, Class 1  
149218  
149218  
10-29-71 Post Weld Heat Treatment,
10-29-71 Post Weld Heat Treatment,  
03-03-75 Section I,  
03-03-75 Section I, III and VIII, Division
III  
1 and 2  
and VIII,
Division 1 and 2
1557-2  
1557-2  
12-17-73 Steel Products Refined by
12-17-73 Steel Products Refined by Sec
01-08-79 Secondary Remelting
01-08-79 ondary Remelting  
1618  
1618  
03-02-74 Material for Core Support
03-02-74 Material for Core Support  
03-03-75 Structures-Section III, Sub- section NG
03-03-75 Structures Section III, Subsec tion NG  
Code Case 1618 was acceptable subject to the fol- lowing conditions in addition to those specified in the Code Case:
Code Case 1618 was acceptable subject to the fol lowing conditions in addition to those specified in the Code Case: a. Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.
a.


Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be per- formed when the material is in the solution-treated condition.
b. Use of alloy ASTM A-564 Grade 631 is not accept able on a generic basis.
 
b. Use of alloy ASTM A-564. Grade 631 is not acceptable on a generic basis.


1618-1  
1618-1  
03-03-75 Material for Core Support
03-03-75 Material for Core Support  
03-01-76 Structures Section III, Sub- section NG
03-01-76 Structures, Section III, Subsec tion NG  
Code Case 1618-1 was acceptable subject to the following condition in addition to those specified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution- treated condition.
Code Case 1618-1 was acceptable subject to the following condition in addition to those specified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.


1618-2  
1618-2 (N-60)
03-01-76 Material for Core Support (N-60)
03-01-76 Material for Core Support  
01-08-79 Structures-Section III, Divi-
01-08-79 Structures Section III, Division
01-21-82 sion 1, Subsection NG
01-21-82  
05-25-83
1, Subsection NG  
18Code Case 1492 is no longer listed by ASME as a Section III
05-25-83 Code Case 1618-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition.
Code Case and is therefore deleted from the acceptable listing.


1.85-11
N-60-1  
 
05-25-83 Material for Core Support
Code Case 1618-2 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: Welding of age-har- denable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.
09-17-84 Structures, Section III, Divi sion 1 Code Case N-60-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition.


N-60-1
18Code Case 1492 is no longer listed by ASME as a Section III Code Case and is therefore deleted from the acceptable listing
05-25-83 Material for Core Support
1.85-12 L
09-17-84 Structures, Section III,
Division 1 Code Case N-60-1 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: Welding of age-har- denable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.


N-60-2  
N-60-2  
09-17-84 Material for Core Support
09-17-84 Material for Core Support  
09-05-85 Structures, Section III, Divi- sion 1 Code Case N-60-2 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: Welding of age-har- denable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition. For SA-479 material, the maximum yield strength should not exceed 90,000 psi in view of the susceptibility of this material to environmental cracking.
09-05-85 Structures, Section III, Divi sion 1 Code Case N-60-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition. For SA-479 material, the maximum yield strength should not exceed 90,000 psi in view of the susceptibility of this material to environmental cracking.


N-60-3  
N-60-3  
09-05-85 Material for Core Support
09-05-85 Material for Core Support  
07-27-88 Structures, Section III, Divi-
07-27-88 Structures, Section III, Divi
05-13-91 sion 1 Code Case N-60-3 was acceptable subject to the following condition in addition to those conditions specified in the Code Case:  
05-13-91 sion 1 Code Case N-60-3 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition. For SA-479 material, the maximum yield strength should not exceed 90,000 psi in view of the susceptibility of this material to environmental cracking.
Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the soution-treated condition. For SA-479 material, the maximum yield strength should not exceed 90,000 psi in view of the sus- ceptibility of this material to environmental crack- ing.
 
N-60-4
05-13-91 Material for Core Support
02-15-94 Structures, Section III, Divi sion 1 Code Case N-60-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition. The maximum yield strength of strain-hardened austenitic stainless steel should not ex ceed 90,000 psi in view of the susceptibility of this ma terial to environmental cracking.


1626  
1626  
03-02-74 Normalized and Tempered
03-02-74 Normalized and Tempered  
01-08-79  
01-08-79  
1-1/4 Cr Low Alloy Steel Forgings, Section 1, Section III, and Section VIII, Division
1-1/4 Cr Low Alloy Steel Forg ings, Section 1, Section III, and Section VIII, Division 1 and 2  
1 and 2
1634  
1634  
07-01-74 Use of SB-359 for Section III,
07-01-74 Use of SB-359 for Section III,  
08-12-74 Class 3 Construction
08-12-74 Class 3 Construction  
1634-1  
1634-1  
08-12-74 Use of SB-359 for Section III,
08-12-74 Use of SB-359 for Section III,  
08-13-76 Class 3 Construction
08-13-76 Class 3 Construction  
1644  
1644  
08-12-74 Additional Materials for Com-
08-12-74 Additional Materials for Com
04-28-75 ponent Supports-Section III,
04-28-75 ponent Supports Section III,  
Subsection NF, Class 1, 2,
Subsection NF, Class 1, 2, 3, and MC Construction Code Case 1644 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: The maximum measured ulti mate tensile strength of the component support material should not exceed 170 Ksi.
3, and MC Construction Code Case 1644 was acceptable subject to the fol- lowing condition in addition to those conditions specified in the Code Case: The maximum meas- ured ultimate tensile strength of the component support material should not exceed 170 Ksi.


1644-1  
1644-1  
04-28-75 Additional Materials for Com-
04-28-75 Additional Materials for Com
06-30-75 ponent Support-Section III,
06-30-75 ponent Support-Section III,  
Subsection NF, Class 1, 2, 3, and MC Construction Code Case 1644-1 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The maximum meas- ured ultimate tensile strength of the component support material should not exceed 170 Ksi.
Subsection NF, Class 1, 2, 3, and MC Construction Code Case 1644-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi.


1644-2  
1644-2  
06-30-75 Additional Materials for Com-
06-30-75 Additional Materials for Com
11-03-75 ponent Supports-Section III,
11-03-75 ponent Supports-Section III,  
Subsection NF, Class 1, 2,
Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi.
3 and MC Construction Code Case 1644-2 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The maximum meas- ured ultimate tensile strength of the component support material should not exceed 170 Ksi.


1644-3  
1644-3  
11-03-75 Additional Materials for Com-
11-03-75 Additional Materials for Com
03-01-76 ponent Supports-Section III,
03-01-76 ponent Supports--Section III,  
Subsection NF, Class 1, 2,
Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-3 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi.
3 and MC Construction Code Case 1644-3 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The maximum meas- ured ultimate tensile strength of the component support material should not exceed 170 Ksi.


1644-4  
1644-4  
03-01-76 Additional Materials for Com-
03-01-76 Additional Materials for Com
08-13-76 ponent Supports and Alter- nate Design Requirements for Bolted Joints, Section III,
08-13-76 ponent Supports and Alternate Design Requirements for Bolted Joints, Section III, Divi sion 1, Subsection NF, Class 1,  
Division
2, 3 and MC Construction Code Case 1644-4 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by he applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub-
1, Subsection NF,
1.85-13
Class 1, 2, 3 and MC Con- struction Code Case 1644-4 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ulti- mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to
190 Ksi could be considered acceptable for a ma- terial and, under this condition, the Design Speci- fication should specify impact testing for the mate- rial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma- terial is not subject to stress corrosion cracking by I
1.85-12


virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience fre- quent sustained loads in service.
ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.


1644-5  
1644-5  
08-13-76 Additional Materials for Com-
08-13-76 Additional Materials for Com
03-03-77 ponent Supports and Alter- nate Design Requirements for Bolted Joints, Section III,
03-03-77 ponent Supports and Alternate Design Requirements for Bolted Joints, Section III, Divi sion 1, Subsection NF, Class 1,  
Division 1, Subsection NF,
2, 3 and MC Construction Code Case 1644-5 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
Class 1, 2, 3 and MC Con- struction Code Case 1644-5 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ulti- mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to
190 Ksi could be considered acceptable for a ma- terial and, under this condition, the Design Speci- fication should specify impact testing for the mate- rial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma- terial is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience fre- quent sustained loads in service.


1644-6  
1644-6  
03-03-77 Additional Materials for Com-
03-03-77 Additional Materials for Com
11-21-77 ponent Supports and Alter- nate Design Requirements for Bolted Joints, Section Iii, Di- vision 1, Subsection NF, Class
11-21-77 ponent Supports and Alternate Design Requirements for Bolted Joints, Section III, Divi sion 1, Subsection NF, Class 1,  
1, 2, 3 and MC Construction Code Case 1644-6 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ulti- mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to
2, 3 and MC Construction Code Case 1644-6 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub j ect to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
190 Ksi could be considered acceptable for a ma- terial and, under this condition, the Design Speci- fication should specify impact testing for the mate- rial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma- terial is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience fre- quent sustained loads in service.


1644-7  
1644-7  
11-21-77 Additional Materials for Coin- (N-71-7)  
11-21-77 Additional Materials for Com (N-71-7) 05-15-78 ponent Supports, Section III,  
05-15-78 ponent Supports, Section 1II,
Division 1, Subsection NF,  
Division  
Class 1, 2, 3 and MC Compo nent Supports Code Case 1644-7 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
1, Subsection NF,
Class 1, 2, 3 and MC Compo- nent Supports Code Case 1644-7 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ulti- mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to
190 Ksi could be considered acceptable for a ma- terial and, under this condition, the Design Speci- fication should specify impact testing for the mate- rial.. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma- terial is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience fre- quent sustained loads in service.


1644-8  
1644-8  
05-15-78 Additional Materials for Corn- (N-71-8)  
05-15-78 Additional Materials for Com (N-71-8) 01-07-80 ponent Supports, Section III,  
01-07-80  
Division 1, Subsection NF,  
ponent Supports, Section III,
Class 1, 2, 3 and MC Compon ent Supports Code Case 1644-8 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
Division 1, Subsection NF,
Class 1, 2, 3 and MC Compo- nent Supports Code Case 1644-8 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ulti- mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to
190 Ksi could be considered acceptable for a ma- terial and, under this condition, the Design Speci- fication should specify impact testing for the mate- rial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma- terial is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience fre- quent sustained loads in service.


1.85-13
1.85-14 I


1644-9  
1644-9  
01-07-80  
01-07-80  
Additional Materials for Com- (N-71-9)  
Additional Materials for Com (N-71-9) 05-11-81 ponent Supports Fabricated by Welding, Section III, Division
05-11-81 ponent Supports Fabricated by Welding, Section III, Divi- sion
1, Subsection NF, Class 1, 2, 3, and MC Component Supports Code Case 1644-9 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: In the last sentence of para graph 5.3, reference should be made to paragraph
1, Subsection NF,
4.5.2.2, "Alternate Atmosphere Exposure Time Peri ods Established by Test," of the AWS D. 1.1 Code for the evidence presented to and accepted by the Autho rized Inspector concerning exposure of electrodes for longer periods of time.
Class 1, 2, 3, and MC Com- ponent Supports Code Case 1644-9 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: In the last sentence of paragraph 5.3, reference should be made to para- graph 4.5.2.2, "Alternate Atmosphere Exposure Time Periods Established by Test," of the AWS
D. 1.1 Code for the evidence presented to and ac- cepted by the Authorized Inspector concerning exposure of electrodes for longer periods of time.


N-71-10  
N-71-10 05-11-81  
05-11-81 Additional Materials for Com-
06-17-82 Additional Materials for Com ponent Supports Fabricated by Welding, Section III, Division
06-17-82 ponent Supports Fabricated by Welding, Section III, Divi- sion 1, Subsection NF, Class
1, Subsection NF, Class 1, 2, 3, and MC Component Supports Code Case N-71-10 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup port material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con sidered acceptable for a material and, under this condi tion, the Design Specification should specify impact testing for the material. For these cases, it should be de monstrated by the applicant that (1) the impact test re sults for the material meet code requirements and (2)  
1, 2, 3, and MC Component Supports Code Case N-71-10 was acceptable subject to the following conditions in addition to those condi- tions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component support material should not exceed
the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the ma terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time.
170 Ksi in view of the susceptibility of high- strength materials to brittleness and stress corro- sion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con- sidered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demonstrated by the applicant that (1)
the impact test results for the material meet code requirements and (2) the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b)
the component that contains the material has es- sentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
5.3, reference should be made to paragraph
4.5.2.2, "Alternate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence presented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of time.


tions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component support material should not exceed
N-71-11
170 Ksi in view of the susceptibility of high- strength materials to brittleness and stress corro- sion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con- sidered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demonstrated by the applicant that (1)
06-17-82
the impact test results for the material meet code requirements and (2) the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b)
02-14-83 Additional Materials for Com ponent Supports Fabricated by Welding, Section III, Division
the component that contains the material has es- sentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
1, Subsection NF, Class 1, 2, 3, and MC Component Supports Code Case N-71-11 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup port material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con sidered acceptable for a material and, under this condi tion, the Design Specification should specify impact testing for the material. For these cases, it should be de monstrated by the applicant that (1) the impact test re sults for the material meet code requirements and (2)  
5.3, reference should be made to paragraph
the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the ma terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time.
4.5.2.2, "Alternate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence presented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of time.


N-71-12  
N-71-12 02-14-83 Additional Materials for Comi
02-14-83 Additional Materials for Com-
02-20-84 ponent Supports Fabricated by Welding, Section III, Division
02-20-84 ponent Supports Fabricated by Welding, Section III, Divi- sion 1, Class 1, 2, 3, and MC
1, Class 1, 2, 3, and MC  
Code Case N-71-12 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The maximum meas- ured ultimate tensile strength (UTS) of the com- ponent support material should not exceed 170
Code Case N-71-12 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that (a) a corrosive environment is not present and (b) the component that contains the materi al has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time. The provisions of paragraph 4.3 are not accept able on a generic basis. Paragraph 16.2.2 is not accept-
Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion crack- ing. Certain applications may exist where a UTS
1.85-15
value of up to 190 Ksi could be considered accept- able for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be dem- onstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not subject to stress corro- sion cracking by virtue of the fact that (a) a corro- sive environment is not present and (b) the com- ponent that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, ref- erence should be made to paragraph 4.5.2.2, "Al- ternate Atmosphere Exposure Time Periods Es- tablished by Test," of the AWS D.t.1 Code for the evidence presented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of tim


====e. The I====
able as written and should be replaced with the follow ing: When not exempted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A materi al it shall be at least 1000'F (540'C) and shall not exceed 1150'F (6200C) for Class 1 and Class 2 mate rial and 1175°F (640'C) for Class 3 material. The new holding time at temperature for weld thickness (nomi nal) shall be 30 minutes for 1/2 inch or less, I hour per inch for thickness over 1/2 inch to 5 inches, and 5 hours plus 15 minutes for each additional inch over 5 inches.
N-71-11
06-17-82
02-14-83 Additional Materials for Com- ponent Supports Fabricated by Welding, Section III, Divi- sion 1, Subsection NF, Class
1, 2, 3, and MC Component Supports Code Case N-71-11 was acceptable subject to the following conditions in addition to those condi-
1.85-14
 
provisions of paragraph 4.3 are not acceptable on a generic basis. Paragraph 16.2.2 is not acceptable as written and should be replaced with the follow- ing: When not exempted by 16.2.1, above, the postweld heat treatment shall be performed in ac- cordance with NF-4622 except that for ASTM
A-710 Grade A material it shall be at least 1000'F
(540'C) and shall not exceed 1150°F (620'C)
for Class 1 and Class 2 material and 1175°F
(640'C) for Class 3 material. The new holding time at temperature for weld thickness (nominal)
shall be 30 minutes for 1/2 inch or less, 1 hour per inch for thickness over 1/2 inch to 5 inches, and 5 hours plus 15 minutes for each additional inch over 5 inches.


N-71-13  
N-71-13  
02-20-84 Additional Materials for Sub-
02-20-84 Additional Materials for Sub
12-05-85 section NF, Classes 1, 2, 3 and MC Component Supports Fabricated by Welding, Sec- tion III, Division 1 Code Case N-71-13 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The maximum meas- ured ultimate tensile strength (UTS) of the com- ponent support material should not exceed 170
12-05-85 section NF, Classes 1, 2, 3 and MC Component Supports Fab ricated by Welding, Section III,  
Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion crack- ing. Certain applications may exist where a UTS
Division 1 Code Case N-71-13 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that (a) a corrosive environment is not present and (b) the component that contains the mate rial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time. Paragraph 16.2.2 is not acceptable as written and should be replaced with the following: When not ex empted by 16.2.1 above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F  
value of up to 190 Ksi could be considered accept- able for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be dem- onstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not subject to stress corro- sion cracking by virtue of the fact that (a) a corro- sive environment is not present and (b) the com- ponent that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, ref-
(6200C) for Class 1 and Class 2 material and 1175°F  
* erence should be made to paragraph 4.5.2.2, "Al- ternate Atmosphere Exposure Time Periods Es- tablished by Test," of the AWS D.1.1 Code for the evidence presented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of tim
(6400C) for Class 3 material. The new holding time at temperature for weld thickness (nominal) shall be 30  
 
minutes for 1/2 inch or less, 1 hour per inch for thick ness over 1/2 inch to 5 inches, and 5 hours plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap- ply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture toughness of Classes  
====e. Paragraph====
1, 2, and 3 component supports shall be characterized in accordance with paragraph 5.3.4 of the USNRC Stan dard Review Plan (NUREG-0800) or on a case-by-case basis.
16.2.2 is not acceptable as written and should be replaced with the following: When not exempted by 16.2.1 above, the postweld head treatment shall be performed inaccordance with NF-4622 except that for ASTM A-7 10 Grade A material, it shall be at least 1000°F (540'C) and shall not ex- ceed 1150'F (620'C) for Class I and Class 2 ma- terial and 1175'F (640'C) for Class 3 material.
 
The new holding time at temperature for weld thickness (nominal) shall be 30 minutes for 1/2 inch or less, 1 hour per inch for thickness over 1/2 inch to 5 inches, and 5 hours plus 15 minutes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case apply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture tough- ness of Classes 1, 2, and 3 component supports shall be characterized in accordance with para- graph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis.


N-71-14  
N-71-14  
12-05-85 Additional Materials for Sub-
12-05-85 Additional Materials for Sub
12-16-86 section NF, Classes 1, 2, 3 and MC Component Supports Fabricated by Welding, Sec- tion III, Division 1 Code Case N-71-14 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: The maximum meas- ured ultimate tensile strength (UTS) of the com- ponent support material should not exceed 170
12-16-86 section NF, Classes 1, 2, 3 and MC Component Supports Fab ricated by Welding, Section III,  
Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion crack- ing. Certain applications may exist where a UTS
Division 1 Code Case N-71-14 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that(a) a corrosive environment is not present and (b) the component that contains the materi al has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time. Paragraph 16.2.2 is not acceptable as written and should be replaced with the following: When not ex empted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F
value of up to 190 Ksi could be considered accept- able for a material and, under this condition, the Design Specification should specify impact testing
(620'C) for Class 1 and Class 2 material and 1175"F
-for the material. For these cases, it should be dem- onstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not subject to stress corro- sion cracking by virtue of the fact that (a) a corro- sive environment is not present and (b) the com- ponent that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, ref- erence should be made to paragraph 4.5.2.2, "Al- ternate Atmosphere Exposure Time Periods Es- tablished by Test," of the AWS D.1.1 Code for the evidence presented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of tim
(640'C) for Class 3 material. The new holding time at temperature for weld thickness (nominal) shall be 30
minutes for 1/2 inch or less, 1 hour per inch for thick ness over 1/2 inch to 5 inches, and 5 hours plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap ply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture toughness of Classes
1, 2, and 3 component supports shall be characterized in accordance with paragraph 5.3.4 of the USNRC Stan-
1.85-16


====e. Paragraph====
dard Review Plan (NUREG-0800) or on a case-by-case basis.
16.2.2 is not acceptable as written and should be replaced with the following: When not exempted by 16.2.1, above, the postweld head treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000°F (540'C) and shall not ex- ceed 1150'F (620'C) for Class 1 and Class 2 ma- terial and 1175°F (640'C) for Class 3 material.


The new holding time at temperature for weld thickness (nominal) shall be 30 minutes for 1/2 inch or less, 1 hour per inch for thickness over 1/2 inch to 5 inches, and 5 hours plus 15 minutes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case apply only to piping supports and not to Class 1, 2,
N-71-15
1.85-15
12-16-86 Additional Materials for Sub
 
12-16-89 section NF, Classes 1, 2 3 and
and 3 component supports. The fracture tough- ness of Classes 1, 2, and 3 component supports shall be characterized in accordance with para- graph 5.3.4 of.the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis.
02-12-93 MC Component Supports Fab ricated by Welding, Section III, Division 1 Code Case N-71-15 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup port material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con sidered acceptable for a material and, under this condi tion, the Design Specification should specify impact testing for the material. For these cases, it should be de monstrated by the applicant that (1) the impact test re sults for the material meet code requirements and (2)
the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the ma terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time. Paragraph 16.2.2 is not acceptable as written and should be replaced with the following: When not ex empted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F
(620'C) for Class 1 and Class 2 material and 1175°F
(640'C) for Class 3 material. The new holding time at temperature for weld thickness (nominal) shall be 30  
minutes for 1/2 inch or less, 1 hour per inch for thick ness over 1/2 inch to 5 inches, and 5 hours plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap ply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture toughness of Classes  
1,2, and 3 component supports shall be characterized in accordance with paragraph 5.3.4 of the USNRC Stan dard Review Plan (NUREG-0800) or on a case-by-case basis.


1682  
1682  
01-29-75 Alternate Rules for Material
01-29-75 Alternate Rules for Material  
08-11-75 Manufacturers and Suppliers, Section III, Subarticle NA-
08-11-75 Manufacturers and Suppliers, Section III, Subarticle NA-3700  
3700
1714  
1714  
08-11-75 Postweld Heat Treatment of
08-11-75 Postweld Heat Treatment of  
07-11-777 P-1 Material, Section III,
07-11-777 P-1 Material, Section III, Class MC
Class MC
1714-1  
1714-1  
07-11-777 Postweld Heat Treatment of (N-102-1)  
07-11-777 (N-102-1) 08-28-78 Postweld Heat Treatment of P-1 Material, Section III, Class MC
08-28-78 P-1 Material, Section III,
Class MC
1722  
1722  
11-03-75 Vacuum, Carbon Deoxidized
11-03-75 Vacuum, Carbon Deoxidized  
01-08-79 SA-508 Forgings, Section III,
01-08-79 SA-508 Forgings, Section III,  
Division 1, and VIII, Division
Division 1, and VIII, Division  
1 and 2
1 and 2  
1741  
1741  
12-22-75 Interim Rules for the Re-
12-22-75 Interim Rules for the Required
01-14-77 quired Number of Impact Tests for Rolled Shapes, Sec- tion III, Division 1, Subsec- tion NF, Component Supports
01-14-77 Number of Impact Tests for Rolled Shapes, Section III, Di vision 1, Subsection NF, Com ponent Supports  
1755  
1755  
04-26-76 Alternative Rules for Exami-
04-26-76 Alternative Rules for Examina
01-14-77 nation of Welds in Piping, Class 1 and 2 Construction, Section III, Division 1
01-14-77 tion of Welds in Piping, Class  
1 and 2 Construction, Section III, Division 1  
1759  
1759  
08-13-76 Material for Internal Pressure
08-13-76 Material for Internal Pressure  
05-15-78 Retaining Items for Pressure Relief Valves, Section III,
05-15-78 Retaining Items for Pressure Relief Valves, Section III, Di vision 1, Class 1, 2, and 3 Code Case 1759 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants using this Case should also use Code Case 1711 for the design of pres sure relief valves.
Division 1, Class 1, 2, and 3 Code Case 1759 was acceptable subject to the fol- lowing condition in addition to those conditions specified in the Code Case: Applicants using this Case should also use Code Case 1711 for the de- sign of pressure relief valves.


N-188  
N-188  
08-29-77 Use of Welded Ni-Fe-Cr-Mo-
08-29-77 Use of Welded Ni-Fe-Cr-Mo-Cu
05-15-78 Cu (Alloy 825) and Ni-Cr- Mo-Cb (Alloy 625) Tubing, Section III,  
05-15-78 (Alloy 825) and Ni-Cr-Mo-Cb (Alloy 625) Tubing, Section III, Division 1, Class 3 N-207  
Division  
03-20-78 Use of Modified SA-479 Type  
1, Class 3 N-207  
03-19-79 XM-19 for Section 1II, Divi sion 1, Class 1, 2, or 3 Construction N-224  
03-20-78 Use of Modified SA-479 Type
11-20-78 Use of ASTM AO00 Grade B  
03-19-79 XM-19 for Section III,
05-11-81 and ASTM A501 Structural Tubing for Welded Attach ments for Section III, Class 2 and 3 Construction N-242  
Division 1, Class 1, 2 or 3 Construction N-224  
04-12-79 Materials Certification, Section
11-20-78 Use of ASTM ASOO Grade B
05-11-81 and ASTM A501 Structural Tubing for Welded Attach- ments for Section III, Class 2 and 3 Construction N-242  
04-12-79 Materials Certification, Sec-
04-10-80  
04-10-80  
tion III, Division 1, Classes 1,
III, Division 1, Classes 1, 2, 3, MC, and CS Construction
2,  
1.85-17
3, MC,  
and CS
Construction Code Case N-242 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: Applicants should identify the components and. supports requiring the use of paragraphs 1.0 through 4.0 of the Code Case in their Safety Analysis Reports.


N-246-1
Code Case N-242 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants should identify the components and supports requiring the use of para graphs 1.0 through 4.0 of the Code Case in their Safety Analysis Reports.
09-07-82
05-25-83 N-249
01-07-80
05-11-81 SB-169, Alloy C 61400, Sec- tion III, Division 1, Class 3 Additional Materials for Component Supports Fabri- cated Without Welding, Sec- tion III, Division 1, Subsec- tion NF,
Class
1,
2,
3, and MC Component Supports Code Case N-249 was acceptable subject to the following condition in addition to those conditions specified in the Code Case: Footnote 2 of the Code Case should apply to all materials listed in Tables 1, 2, 3, 4, and 5 of the Code Case and should be so indicated on line 5 of the "Reply."
N-249-1
05-11-81 Additional Materials for
06-17-82 Component Supports Fabri- cated Without Welding, Section III, Division 1, Sub- section NF, Class 1, 2, 3, and MC Component Supports Code Case N-249-1 .was acceptable subject to the following condition in addition to those conditions specified in the Code Case: Paragraph 7 of the
"Reply" should reference the requirements of NF-2600 instead of NF-2800. This is a typographi- cal error in that NF-2800 does not exist.


N-249-2
N-246-1 09-07-82 SB-169, Alloy C 61400, Sec
06-17-82 Additional Materials for Sub-
05-25-83 tion III, Division 1, Class 3 N-249  
02-14-83 section NF Class 1, 2, 3, and MC
01-07-80 Additional Materials for Com
Component Supports Fabricated Without Welding, Section III, Division 1 N-249-3
05-11-81 ponent Supports Fabricated Without Welding, Section III,
02-14-83 Additional Materials for Sub-
Division 1, Subsection NF,
02-20-84 section NF Class 1, 2, 3, and MC  
Class 1, 2, 3, and MC Compo nent Supports Code Case N-249 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Footnote 2 of the Code Case should apply to all materials listed in Tables 1, 2, 3, 4, and 5 of the Code Case and should be so indicated on line 5 of the "Reply."
Component Supports Fabricated Without Welding, Section III, Division 1 N-249-4
N-249-1 05-11-81
02-20-84 Additional Material for Sub-
06-17-82 Additional Materials for Com ponent Supports Fabricated Without Welding, Section III,
09-17-84 section NF, Classes 1, 2, 3, and MC Component Supports Fabricated Without Welding, Section III, Division 1 The fracture toughness requirements as listed in Code Case N-249-4 apply only to piping supports and not to Classes 1, 2, and 3 component sup- ports. The fracture toughness of Classes 1, 2, and
Division 1, Subsection NF,  
3 component supports should be characterized in accordance with paragraph 5.3.4 of the USNRC
Class 1, 2, 3, and MC Compo nent Supports Code Case N-249-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Paragraph 7 of the "Reply"
Standard Review Plan (NUREG-0800) or on a case-by-case basis.
should reference the requirements of NF-2600 instead of NF-2800. This is a typographical error in that NF-2800 does not exist.


1.85-16
N-249-2 06-17-82 Additional Materials for Sub
02-14-83 section NF Class 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 N-249-3
02-14-83
02-20-84 N-249-4 02-20-84
09-17-84 Additional Materials for Sub section NF Class 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Additional Material for Sub section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 The fracture toughness requirements as listed in Code Case N-249-4 apply only to piping supports and not to Classes 1, 2, and 3 component supports. The frac- ture toughness of Classes 1, 2, and 3 component sup ports should be characterized in accordance with para graph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis.


N-249-5  
N-249-5 09-17-84 Additional Material for Sub
09-17-84 Additional Material for Sub-
04-08-85 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 The fracture toughness requirements as listed in Code Case N-249-5 apply only to piping supports and not to Classes 1, 2, and 3 component supports. The frac ture toughness of Classes 1, 2, and 3 component sup ports should be characterized in accordance with para graph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis.
04-08-85 section NF, Classes 1, 2, 3, and MC Component Supports Fabricated Without Welding, Section III, Division 1 The fracture toughness requirements as listed in Code Case N-249-5 apply only to piping supports and not to Classes 1, 2, and 3 component sup- ports. The fracture toughness of Classes 1, 2, and
3 component supports should be characterized in accordance with paragraph 5.3.4 of the USNRC
Standard Review Plan (NUREG-0800) or on a case-by-case basis.


N-249-6  
N-249-6 04-08-85 Additional Material for Sub
04-08-85 Additional Material for Sub-
09-05-85 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-6 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph  
09-05-85 section NF, Classes 1, 2, 3, and MC Component Supports Fabricated Without Welding, Section III, Division 1 Code Case N-249-6 was acceptable subject to the following conditions in addition to those condi- tions specified in the Code Case: The fracture toughness requirements apply only to piping sup- ports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be character- ized in accordance with paragraph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800)
5.3.4 of the USNRC Standard Review Plan (NUREG
or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that
0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
(1) the impact test results for the material meet Code requirements and (2) the material is not sub- ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sus- tained loads in service.


N-249-7  
N-249-7  
09-05-85 Additional Material for Sub-
09-05-85 Additional Material for Sub
12-05-85 section NF, Classes 1, 2, 3, and MC Component Supports Fabricated Without Welding, Section III, Division 1 Code Case N-249-7 was acceptable subject to the following conditions in addition to those condi- tions specified in the Code Case: The fracture toughness requirements apply only to piping sup- ports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be character- ized in accordance with paragraph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that
12-05-85 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-7 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph  
(1) the impact test results for the material meet Code requirements and (2) the material is not sub- ject to stress corrosion cracking by virtue of tke fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sus- tained loads in service.
5.3.4 of the USNRC Standard Review Plan (NUREG-
1.85-18


N-249-8  
0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
12-05-85 Additional Material for Sub-
 
12-16-86 section NF, Classes 1, 2, 3, and MC Component Supports Fabricated Without Welding, Section III, Division 1 Code Case N-249-8 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The frac- ture toughness requirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be character- ized in accordance with paragraph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that
N-249-8 12-05-85 Additional Material for Sub
(1) the impact test results for the material meet Code requirements and (2) the material is not sub- ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sus- tained loads in service.
12-16-86 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-8 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph  
5.3.4 of the USNRC Standard Review Plan (NUREG
0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.


N-249-9  
N-249-9  
12-16-86 Additional Material for Sub-
12-16-86 Additional Material for Sub
05-06-89 section NF, Classes 1, 2, 3, and MC Component Supports Fabricated Without Welding, Section III, Division 1 Code Case N-249-9 was acceptable subject to the following conditions in addition to those condi- tions specified in the Code Case: The fracture toughness requirements apply only to piping sup- ports and hot to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be character- ized in accordance with paragraph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that
05-06-89 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-9 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
(1) the impact test results for the material meet Code requirements and (2) the material is not sub- ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly
5.3.4 of the USNRC Standard Review Plan (NUREG
1.85-17
0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro- sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
 
N-249-10 05-06-89 Additional Material for Sub
05-13-91 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-10 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph  
5.3.4 of the USNRC Standard Review Plan (NUREG
0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
 
N-249-11 05-13-91 Additional Material for Sub
02-12-93 section NF, Classes 1, 2, 3 and MC Component Supports fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-11 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
5.3.4 of the USNRC Standard Review Plan (NUREG
0800) or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.


stresses, and it does not experience frequent sus- tained loads in service.
1.85-19


N-249-10
N-249-12 02-12-93 Additional Material for Sub
05-06-89 Additional Material for Sub-
05-11-94 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-12 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: the fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph  
05-13-91 section NF, Classes 1, 2, 3, and MC Component Supports Fabricated Without Welding, Section III, Division 1 Code Case N-249-10 was acceptable subject to the following conditions in addition to those condi- tions specified in the Code Case: The fracture toughness requirements apply only to piping sup- ports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be character- ized in accordance with paragraph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that
5.3.4 of the USNRC Standard Review Plan (NUREG
(1) the impact test results for the material meet Code requirements and (2) the material is not sub- ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sus- tained loads in service.
0800) or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, is should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.


N-352
N-26519 01-07-80
07-16-82 Use of SA-638 Grade 660
09-01-83
05-19-85 Forgings and Bars Below
12-31-84
07-18-85  
05-19-85 N-299
700°F Without Stress Rupture Tests, Section III, Division 1 N-370  
11-17-80
02-14-83 Modified SA-705 Grade
11-28-83
07-18-85 XM-13 Forgings, Section III,
07-18-85 N-321
Division 1 N-370-1  
07-13-81
07-18-85 Modified SA-705 Grade
07-13-84
12-05-85 XM-13 Forgings, Section III,
12-05-85 N-337
04-02-82  
05-19-85
07-18-85 Modified SA-487 Castings, Section III, Division 1, Class 1 Use of Nickel-Chromium Molybdenum-Columbium Alloy 625 Forgings, Section III, Division 1, Class 2 and Class 3 Components Use of Modified SA-249, Type
304 for Section III, Division 1, Class 1 Construction Use of ASTM B525-70 Grade II, Type II, Sintered Austenitic Stainless Steel for Class 2, 3, and MC Component Standard Supports, Section III,
Division 1 N-352
07-16-82
05-19-85  
07-18-85 Use of SA-638 Grade 660
Forgings and Bars Below
7000 F Without Stress Rupture Tests, Section III, Division 1 N-370  
02-14-83 Modified SA-705 Grade  
07-18-85 XM-13 Forgings, Section III,  
Division 1 N-370-1 07-18-85 Modified SA-705 Grade  
12-05-85 XM-13 Forgings, Section III,  
Division 1 N-371  
Division 1 N-371  
02-14-83  
02-14-83  
12 Cr-1W-lMo-1/4V Marten-
12 Cr-1W-lMo-1/4V Marten
07-18-85 sitic Stainless Steel Valve In- ternals, Section III, Division 1 N-379  
07-18-85 sitic Stainless Steel Valve In ternals, Section III, Division 1 N-379  
04-04-83 Bimetallic Tubing Section III,
04-04-83 Bimetallic Tubing Section III,  
07-18-85 Division 1, Class 1 N-418  
07-18-85 Division 1, Class 1 N-418  
12-05-84 Use of Seamless Ni-Fe-Cr-
12-05-84 Use of Seamless Ni-Fe-Cr-Mo
07-30-86 Mo-Cu Low Carbon (UNS
07-30-86 Cu Low Carbon (UNS N08028 and UNS N08904) Tubing, Section III, Division 1, Classes  
N08028 and UNS N08904)
2 and 3 N-438  
Tubing, Section III, Division
02-23-87 Fe-24.5Ni-21Cr-6.5 Mo-0.2N  
1, Classes 2 and 3 N-438  
03-08-89 (Alloy UNS N08367) Seamless and Welded Pipe, Tube, Plate, Bar, Fittings, and Forgings, Class 2 and 3 Construction, Section III, Division 1 N-438-1  
02-23-87 Fe-24.5Ni-2lCr-6.5 Mo-0.2N
03-08-89  
03-08-89 (Alloy UNS N08367) Seam- less and Welded Pipe, Tube, Plate, Bar, Fittings, and Forg- ings, Class 2 and 3 Construc- tion, Section III, Division 1 N-438-1  
03-05-90
03-08-89 Fe-24.5Ni-21Cr-6.5Mo-0.2N
Fe-24.5Ni-21Cr-6.5Mo-0.2N  
03-05-90
(Alloy UNS N08367) Seamless and Welded Pipe, Tube, Plate, Bar, Fittings, and Forgings, Class 2 and 3 Construction, Section III, Division 1 N-438-2 03-05-90  
(Alloy UNS N08367) Seam- less and Welded Pipe, Tube, Plate, Bar, Fittings, and Forg- ings, Class 2 and 3 Construc- tion, Section III, Division 1 N-438-2  
UNS N08367 Material, Sec
03-05-90  
07-27-92 tion III, Division 1, Class 2 and  
UNS N08367 Material, Sec-
3 Construction N-441
07-27-92 tion III, Division 1, Class 2 and
02-23-87
3 Construction N-443  
12-11-89
05-07-87 High Yield Strength Cr-Mo
11-25-92 Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2 and 3 Construction, Section III,
Division 1
19Code Case N-265 was allowed to expire on 1-7-83 because of an ad ministrative error. It was reinstated on 9-1-83 with no technical changes. The Case is, therefore, considered in effect during that period of time. Again, Code Case N-265 was allowed to expire on 12-31-84 (mandatory annulment date). It was reinstated as N-265-1 on
5-19-85. Because of the circumstances and because there were no changes in the Code Case, the NRC considers that this Case was in ef fect during the period of 12-31-84 through 5-19-85.
 
N-443  
05-07-87 High Yield Strength Cr-Mo  
03-08-89 Steel, Class 1 Components, Section III, Division 1 N-466  
03-08-89 Steel, Class 1 Components, Section III, Division 1 N-466  
03-08-89 Modified 9Cr-lMo Material
03-08-89 Modified 9Cr-iMo Material  
04-30-90  
04-30-90  
Section III,  
Section III, Division 1, Classes  
Division  
1, 2, and 3
1, Classes 1, 2, and 3 N-474
1.85-20
05-06-89 Design Stress Intensities and
L
03-05-90
Yield Strength Values for Al- loy 690 With a Minimum Yield Strength of 35 ksi, Class
1 Components, Section III,
Division 1
4. UNACCEPTABLE CODE CASES
Code Cases for Class 1 components that are not on the approved list of this guide (paragraph C. 1) or other regulatory guides, or for which authorization by the Commission has not been granted, are not acceptable for Class 1 components.


Code Cases for other classes of components that are not on the approved list of this guide (paragraph N-26519 
N-474
01-07-80
05-06-89 Design Stress Intensities and
09-01-83
03-05-90 Yield Strength Values for Alloy
12-31-84
690 With a Minimum Yield Strength of 35 ksi, Class 1 Components, Section III, Divi sion 1 N-474-1 03-05-90
05-19-85 N-299
03-05-93
11-17-80
12-09-93 Design Stress Intensities and Yield Strength Values for UNS
11-28-83
N06690 With a Minimum Spe cified Yield Strength of 35 ksi, Class 1 Components, Section III, Division 1 N-492
07-18-85 N-321
12-03-90
07-13-81
Grade 9 Titanium Alloy, Sec
07-13-84
05-11-94 tion III, Division I, Class 1, 2, and 3 N-497
12-05-85 N-337
05-13-91 Use of Fe-Ni-Cr-Mo-N
04-02-82
12-09-93 (CN-3MN) Cast Materials, Section III, Division 1, Class 2 and 3 Construction
05-19-85
4. UNACCEPTABLE CODE CASES
07-18-85 Modified SA-487 Castings, Section III, Division 1, Class 1 Use of Nickel-Chromium- Molybdenum-Columbium Al- loy 625 Forgings, Section III,
Code Cases for Class 1 components that are not on the approved list of this guide (paragraph C.1) or other regulatory guides, or for which authorization by the Commission has not been granted, are not acceptable for Class 1 components.
Division 1, Class 2 and Class 3 Components Use of Modified SA-249, Type 304 for Section III,
Division 1, Class 1 Construc- tion Use of ASTM B525-70 Grade II, Type II, Sintered Austen- itic Stainless Steel for Class 2,
3, and MC Component Stan- dard Supports, Section III,
Division 1
19Code Case N-265 was allowed to expire on 1-7-83 because of an administrative error. It was reinstated on 9-1-83 with no technical changes. The Case is, therefore, considered in effect during that period of time. Again, Code Case N-265 was al- lowed to expire on 12-31-84 (mandatory annulment date). It was reinstated as N-265-1 on 5-19-85. Because of the circum- stances and because there were no changes in the Code Case, the NRC considers that this Case was in effect during the period of 12-31-84 through 5-19-85.
 
1.85-18


C. 1) or other regulatory guides should be considered not acceptable on a generic basis.
Code Cases for other classes of components that are not on the approved list of this guide (paragraph C.1) or other regulatory guides should be considered not acceptable on a generic basis.


==D. IMPLEMENTATION==
==D. IMPLEMENTATION==
The purpose of this section is to provide information to applicants regarding the use of this regulatory guide.
The purpose of this section is to provide informa tion to applicants regarding the use of this regulatory guide.


1. Except for those Code Cases that have been annulled by action of the ASME, the NRC staff has found the Code Cases listed in this regulatory guide under regulatory position C.1 acceptable for appropriate use. Other Code Cases may be considered for use in accordance with footnote 6 of the Codes and Standards rule, §50.55a of 10 CFR Part 50.
1. Except for those Code Cases that have been an nulled by action of the ASME, the NRC staff has found the Code Cases listed in the final version of this regulatory guide under Regulatory Position 1 acceptable for appropriate use. Other Code Cases may be considered for use in accordance with foot note 6 of the Codes and Standards rule, 10 CFR
50.55a.


2. Components ordered to a specific version of a Code Case need not be changed because a subsequent revision of the Code Case is listed as the approved version in this guide.
2. Components ordered to a specific version of a Code Case need not be changed because a subsequent re vision of the Code Case is listed as the approved version in this guide.


3. Components ordered to a Code Case that was previously approved for use need not be changed because the Code Case has been subsequently annulled.
3. Components ordered to a Code Case that was pre viously approved for use need not be changed be cause the Code Case has been subsequently an nulled.


4. Code Cases on the approved list may be applied to components that were in process of construction prior to the effective date of the Code Case within the limits specified in the Code Case and applicable regulations or recommended in other regulatory guides.
4. Code Cases on the approved list may be applied to components that were in the process of construc tion prior to the effective date of the Code Case within the limits specified in the Code Case and ap plicable regulations or recommended in other regu latory guides.


APPENDIX
1.85-21
NUMERICAL LISTING OF CODE CASES
 
APPENDIX  
NUMERICAL LISTING OF CODE CASES  
N-4-11 (1337-11)  
N-4-11 (1337-11)  
N-40
N-294 N-443-1 N-7-1 N-329 N-466-1 N-20-3 N-351 N-469 N-60-5 N-370-2 N-474-2 N-71-16 N-404 N-484-1 N-131-1 (1759-1)  
N-7-1 N-41 N-20-3 N-43 N-60-4 N-43 N-71-15 N-44 N-131-1 (1759-1)  
N-418-1 N-492-1 N-188-1 N-438-3 N-497-1 N-205 N-439 N-502 N-246-2 N-440
N-44 N-188-1 N-44 N-205 N-45 N-246-2 N-46 N-249-11 N-46 N-265-1 N-47 N-294 N-47 N-329 N-48 N-337-1 N-48 N-348-3 N-49 N-351 N-49 N-370-2 N-50
N-510
N-379-1 N-50
N-249-13 N-441-1 N-525 N-265-1
4
1.85-22
8-1
8-3
9
0
1
3-1
9
6-1
9
4-1
5
2
4-1
2
7
1
2
1.85-19


Federal Recycling Program
VALUE/IMPACT STATEMENT
A draft value/impact statement was published with the draft of this guide when it was published for public comment (Task DG-1049, May 1997). No changes were necessary, so a separate value/impact statement for Regulatory Guide 1.85 has not been prepared. A copy of the draft value/impact statement is available for inspection or copying for a fee in the NRC's Public Document Room at 2120 L Street NW., Washington, DC, under Task DG-1049.


w UNITED STATES
1.85-23}}
NUCLEAR REGULATORY COMMISSION
WASHINGTON, D.C. 20555-0001 FIRST CLASS MAIL
POSTAGE AND FEES PAID
USNRC
PERMIT NO. G-67 OFFICIAL BUSINESS
PENALTY FOR PRIVATE USE, $300}}


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Latest revision as of 02:05, 17 January 2025

1, (Draft Was Issued as DG-1049), Materials Code Case Acceptability ASME Section III, Division 1
ML003740365
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Issue date: 05/31/1999
From:
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To:
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RG-1.85, Rev 31
Download: ML003740365 (23)
v • d • e


A. INTRODUCTION

Section 50.55a, "Codes and Standards," of 10 CFR

Part 50, "Domestic Licensing of Production and Uti lization Facilities," requires, in part, that components of the reactor coolant pressure boundary be designed, fabricated, erected, and tested in accordance with the requirements for Class 1 components of Section III,

"Nuclear Power Plant Components,"' of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code or equivalent quality standards.

Footnote 6 to 10 CFR 50.55a states that the use of spe cific Code Cases may be authorized by the Commission upon request pursuant to 10 CFR 50.55a(a)(3), which requires that proposed alternatives to the described re quirements or portions thereof provide an acceptable level of quality and safety.

General Design Criterion 1, "Quality Standards and Records," of Appendix A, "General Design Crite ria for Nuclear Power Plants," to 10 CFR Part 50 re quires, in part, that structures, systems, and compo nents important to safety be designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety function to be per

1Copies may be obtained from theAmerican Society of Mechanical Engi neers, Three Park Avenue, New York, New York 10016-599

0. Phone

(212)591-8500; fax (212)591-8501.

Revision 31 May 1999

3UIDE

formed. Where generally recognized codes and stan dards are used, Criterion 1 requires that they be identi fied and evaluated to determine their applicability, adequacy, and sufficiency and be supplemented or modified as necessary to ensure a quality product in keeping with the required safety function.

Criterion 30, "Quality of Reactor Coolant Pressure Boundary," of the same appendix requires, in part, that components that are part of the reactor coolant pressure boundary be designed, fabricated, erected, and tested to the highest quality standards practical.

Appendix B, "Quality Assurance Criteria for Nu clear Power Plants and Fuel Reprocessing Plants," to

10 CFR Part 50 requires, in part, that measures be es tablished for the control of special processing of materi als and that proper testing be performed.

This regulatory guide lists those Section III ASME

Code Cases oriented to materials and testing that are generally acceptable to the NRC staff for implementa tion in the licensing of light-water-cooled nuclear pow er plants. This guide is being revised to update the NRC

staff positions on new Code Cases, revised Code Cases, and annulled Code Cases subsequent to Revision 30 of the guide in October 1994.

This regulatory guide contains no information collection activities and, therefore, is not subject to the USNRC REGULATORY GUIDES

The guides are issued in the following ten broad divisions:

Regulatory Guides are issued to describe and make availableto the public such informa tion as methods acceptable to the NRC staff for implementing specific parts of the Corn-

1. Power Reactors

6. Products mission's regulations, techniques usedbythestaff in evaluating specificproblemsorpos-

2. Research and Test Reactors

7. Transportation tulated accidents, and data needed by the NRC staff in its review of applications for per-

3. Fuels and Materials Facilities

8. Occupational Health mits and licenses. Regulatory guides are not substitutes for regulations, and compliance

4. Environmental and Siting

9. Antitrust and Financial Review with them is not required. Methods and solutions differentfrom those set out in theguides

5. Materials and Plant Protection

10. General will be acceptable if they provide a basis for the findings requisite to the issuance or con tinuance of a permit or license by the Commission.

Singlecopies of regulatory guides may be obtained free of charge bywriting to the Repro This guide was issued after consideration of comments received from the public. Com- duction and Distribution Services Section, Office of the Chief Information Officer, U.S. Nu ments and suggestionsfor improvements in these guides areencouraged atall times, and clear Regulatory Commission, Washington, DC 20555-0001; or by fax to (301)415-2289;

guides will be revised, as appropriate, to accommodate comments and to reflect new in- or by emall to DISTRIBUTION@NRC.GOV

formation or experience.

Issued guides may also be purchased from the National Technical Information Service on Written comments may be submitted to the Rules and Directives Branch, ADM, U.S. Nu- a standing order basis. Details on this service may be obtained by writing NTIS, 5285 Port clear Regulatory Commission, Washington, DC 20555-0001.

Royal Road, Springfield, VA 22161.

U.S. NUCLEAR REGULATORY COMMISSION

REGULATORY (

OFFICE OF NUCLEAR REGULATORY RESEARCH

REGULATORY GUIDE 1.85 (Draft was issued as DG-1 049)

MATERIALS CODE CASE ACCEPTABILITY

ASME SECTION III, DIVISION 1

requirements of the Paperwork Reduction Act of 1980

(44 U.S.C. 3501 et seq.).

B. DISCUSSION

The Boiler and Pressure Vessel Committee of the ASME publishes a document entitled "Code Cases."1 Generally, the individual Code Cases that make up this document explain the intent of Code rules or provide for alternative requirements under special circum stances.

Most Code Cases are eventually superseded by re vision to the Code and then are annulled by action of the ASME. In such cases, the intent of the annulled Code Case becomes part of the revised Code, and therefore continued use of the Code Case intent is sanctioned un der the rules of the Code. In other cases, the Code Case is annulled because it is no longer acceptable or there is no further requirement for it. A Code Case that was ap proved for a particular situation and not for a generic application should be used only for construction of the approved situation because annulment of such a Code Case could result in construction that would not meet Code requirements.

The Code Cases listed in this guide are limited to those cases applicable to Section III that are oriented to ward materials and testing.

All published Code Cases in the area of materials and testing that are applicable to Section III of the Code and were in effect on May 12, 1994,* were reviewed for inclusion in this guide. In addition to the listing of ac ceptable Code Cases, this revision of the guide includes listings of (1) Code Cases that were identified as ac ceptable in a prior version of this regulatory guide and that were annulled after the original issuance of this guide (June 1974) and (2) Code Cases that were identi fied as acceptable in a prior version of this regulatory guide and that were superseded by revised Code Cases after the original issuance of this guide (June 1974).

Code Cases that are not listed herein are either not en dorsed or will require supplementary provisions on an individual basis to attain endorsement status.

The endorsement of a Code Case by this guide constitutes acceptance of its technical position for ap plications not precluded by regulatory or other require ments or by the recommendations in this or other regu latory guides. Contingent endorsement is indicated in Regulatory Position C.l.a for specific cases. However, it is the responsibility of the user to make certain that no regulatory requirements are violated and that there are

  • Lines indicate substantive changes from Revision 30.

no conflicts with other recommended limitations re sulting from Code Case usage.

Acceptance or endorsement by the NRC staff ap plies only to those Code Cases or Code Case revisions with the date of ASME approval as shown in the Regu latory Position of this guide. Earlier or later revisions of a Code Case are not endorsed by this guide. New Code Cases will require evaluation by the NRC staff to deter mine whether they qualify for inclusion in the approved list. Because of the continuing change in the status of Code Cases, it is planned that this guide will require pe riodic updating to accommodate new Code Cases and any revisions of existing Code Cases.

C. REGULATORY POSITION

1. ACCEPTABLE CODE CASES

The Section III ASME Code Cases 2 listed below (by number, date of ASME approval, and title) are ac ceptable to the NRC staff for application in the construction of components for light-water-cooled nuclear power plants. Their use is acceptable within the limitations stated in the "Inquiry" and "Reply" sections of each individual Code Case, within the limitations of such NRC or other requirements as may exist, and within the additional limitations recommended by the NRC staff given with the individual Code Cases in the listing. The categorization of Code Cases used in this guide is intended to facilitate the Code Case listing and is not intended to indicate a limitation on its usage.

a. Materials-Oriented Code Cases (Code Case Number, Date of ASME Approval, 3 and title)

(1)

N-7-1 Code Cases Involving Plate

12-13-82 High Yield Strength Steel, Sec

02-20-86 tion III, Division 1, Class 1

02-20-89 Vessels

02-05-92

(2) Code Cases Involving Pipe and Tubes N-20-3

11-30-88 SB-163 Nickel-Chromium-Iron

12-16-91 Tubing (Alloy 600 and 690)

and Nickel-Iron-Chromium Alloy 800 at a Specified Mini mum Yield Strength of 40.0

Ksi and Cold Worked Alloy

800 at a yield strength of 47.0

Ksi,Section III, Division 1, Class 1

2A numerical listing of the Code Cases appears in the appendix.

3When more than one date is given, the earlier date is that on which the Code Case was approved by the ASME, and the later date(s) is that on which the Code Case was reaffirmed by the ASME.

1.85-2 Vt L

N-188-1

05-15-78

07-13-81

07-13-84

07-13-87

08-14-90

08-14-93 N-294

08-25-80

05-25-83

07-30-86

07-30-89

07-27-92 N-404

04-05-84

04-05-87

12-11-89

12-11-92 Use of Welded Ni-Fe-Cr-Mo Cu (Alloy 825) and Ni-Cr-Mo Cb (Alloy 625) Tubing,Section III, Division 1, Class 2 and 3 SB-148 Alloy 952 and 954, and SB-62 Alloy 836 Fittings,Section III, Division 1, Class 2 Annealed Alloy UNS N06625 Over UNS N06600 Bimetallic Tubing,Section III, Division 1, Class 1 Code Case N-404 is acceptable subject to the fol lowing conditions in addition to those conditions speci fied in the Code Case: The outside layer of the bimetal lic tubing should be limited to a minimum of 5 percent and to a maximum of 40 percent of the wall thickness.

The tolerance on the outside layer of material should not exceed -0.000 to +0.007 inches of the specified de sign wall thickness.

N-418-1

07-30-86 Use of Seamless Ni-Fe-Cr-Mo

07-30-89 Cu Low Carbon (UNS N08028

07-27-92 and UNS N08904) Tubing,Section III, Division 1, Classes

2 and 3 N-439

02-23-87 Use of 20Cr-18Ni-6Mo (Alloy

12-11-89 UNS S31254) Forgings,

12-11-92 Plate, Seamless and Welded Pipe, and Welded Tube, Class 2 and 3 Construction,Section III,

Division 1 N-441-1

11-25-92 Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2 and 3 Construction,Section III,

Division 1 N-466-1

04-30-90 Modified 9Cr-iMo Material,

02-12-93 Section III, Division 1, Classes

1, 2, and 3 N-502

02-05-92 SA-268, Grade 26-3-3 (UNS

S44660)Section III, Division 1, Classes 2 and 3

(3) Codes Cases Involving Bars and Forgings

1337-11

05-15-78 Special Type 403 Modified (N-4-11) 07-13-81 Forgings or Bars,Section III,

07-13-84 Division 1, Class 1 and CS

07-13-87

08-14-90

08-14-93 N-370-2

12-05-85

12-05-88

12-16-91 Modified SA-705 Grade XM-13 Forgings,Section III,

Division 1 N-469

03-08-89 Martensitic Stainless Steel for

04-30-92 Class 1, 2, and 3 Components,Section III, Division 1

(4) Code Cases Involving General Usage N-60-5

02-15-94 Material for Core Support Structures,Section III,

Division 1 Code Case N-60-5 is acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition. The maximum yield strength of strain hardened austenitic stainless steel should not exceed

90,000 psi in view of the susceptibility of this material to environmental cracking.

N-71-16 02-12-93 Additional Materials for Sub section NF, Classes 1, 2, 3 and MC Component Supports Fabri cated by Welding,Section III,

Division 1 Code Case N-71-16 is acceptable subject to the fol lowing conditions in addition to those conditions speci fied in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that (a) a corrosive environment is not present and (b) the component that contains the mate rial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter-

1.85-3

nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence pre sented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of time. Paragraph 16.2.2 is not acceptable as written and should be replaced with the following: When not ex empted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F

(620'C) for Class 1 and Class 2 material and 1175°F

(640' C) for Class 3 material. The new holding time at temperature for weld thickness (nominal) shall be 30

minutes for 1/2 inch or less, 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> per inch for thick ness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap ply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture toughness of Classes

1, 2, and 3 component supports shall be characterized in accordance with paragraph 5.3.4 of the USNRC Stan dard Review Plan (NUREG-0800) or on a case-by-case basis.

1759-1

05-15-78 Material for Internal Pressure (N-131-1) 07-13-81 Retaining Items for Pressure

12-11-81 Relief Valves,Section III,

12-05-84 Division 1, Class 1, 2, and 3

12-05-87

12-03-90

12-03-93 Code Case 1759-1 is acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants using this Case should also use Code Case 1711 for the design of pres sure relief valves.

cated Without Welding,Section III, Division 1 Code Case N-249-13 is acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph

5.3.4 of the USNRC Standard Review Plan (NU

REG-0800) or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, it should be demonstrated by the owner that (1)

the impact test results for the material meet Code re quirements and (2) the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corro sive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

N-265-1

05-19-85

05-19-88

03-14-91

03-14-94 N-438-3

07-27-92 N-440

02-23-87

12-11-89

12-11-92 Modified SA-487 Castings,Section III, Division 1, Class 1 UNS N08367 Material,Section III, Division 1, Class 2 and 3 Construction Use of 20Cr-18Ni-6Mo (Alloy UNS J93254) Castings, Class 2 and 3 Construction,Section III, Division 1 U

N-443-1

03-08-89 High Yield Strength Cr-Mo

04-30-92 Steel, Class 1 Components,Section III, Division 1 N-205

05-15-78

07-13-81

07-13-84

07-13-87

08-14-90

08-14-93 N-246-2 05-25-83

07-30-86

07-30-89

07-27-92 N-249-13 05-11-94 Use of Ductile Iron SA-395 for Section III, Division 1, Class 3 Construction SB-169, Alloy C61400, Sec tion III, Division 1, Class 3 N-474-2

12-09-93 N-492-1

05-11-94 N-497-1

12-09-93 Additional Material for Subsec tion NF, Classes 1, 2, 3, and MC Component Supports Fabri- Design Stress Intensities and Yield Strength Values for UNS

N06690 With a Minimum Spe cified Yield Strength of 35 ksi, Class 1 Components,Section III, Division 1 Grade 9 Titanium Alloy, Sec tion III, Division 1, Class 1, 2, and 3 Use of Fe-Ni-Cr-Mo-N

(CN-3MN) Cast Materials, Sec tion III, Division 1, Class 2 and

3 Construction

1.85-4

b. Testing-oriented Code Cases

(1) Code Case Involving Plates

(2) Code Case Involving Bars and Forgings N-329

12-11-81 Examination of Bar Material,

12-05-84 Section III, Division 1, Class 1

12-05-87

12-03-90

12-03-93

(3) Code Case Involving Pipe and Tubes Code Case Involving General Usage

07-16-82 Use of Subsize Charpy V

05-19-85 Notch Specimens, Section

05-19-88 III, Division 1

03-14-91

03-14-94

1334-3 (N-2)

1335-10

(N-3-10)

04-29-74

01-08-79

01-01-81

08-28-78

08-28-81

09-16-84 Requirements for Corrosion Resisting Steel Bars and Shapes,Section III

Requirements for Bolting Materials,Section III

N-5-1

12-13-82 Nickel Chromium Age Harden

12-13-85 able Alloys (Alloy X750),

Section III, Division 1, Classes

1, 2, 3, MC, and CS

1345-2 (N-6)

1395-4 (N-9-4)

03-09-72 Requirements for Nickel

03-01-79 Molybdenum-Chromium-Iron Alloys,Section III

01-08-79 SA-508, Class 2 Forgings with

07-01-82 Modified Manganese Content,Section III

N-484-1

12-16-91 Real Time Radioscopic Ex amination of Welds, Class 1 Components,Section III, Divi sion 1 N-510

12-09-93 Borated Stainless Steel for Class CS Core Support Struc tures and Class 1 Components,Section III, Division 1 N-525

12-09-93 Design Stress Intensities and Yield Strength Values for UNS

N06690 with a Minimum Speci fied Yield Strength of 30 Ksi, Class 1 Components,Section III, Division 1

2. ANNULLED CODE CASES

Code Cases that were endorsed by the NRC in a prior version of this guide and were later annulled by action of the ASME should be considered as deleted from the list of acceptable Code Cases as of the date of the ASME action that approved the annulment. Such Code Cases that were annulled on or after July 1, 1974, are listed in the following by number, effective dates, 4 and title.5

1141-1

08-31-61 Foreign Produced Steel

07-23-76

1332-7 (N-1-7)

01-08-79 Requirements for Steel Forg

07-01-82 ings,Section III, Division 1

4Earlier date-date Code Case was approved by ASME; later date-date Code Case was annulled. Where more than two dates appear, the last date is the date that the Code Case was annulled. The middle date (or dates)

was the date of reaffirmation of the Code Case.

5Code Cases 1401-1,1493-1, and 1599, which were listed in the original issue of this guide, were annulled by ASME action prior to July 1, 1974.

1407-3

07-01-74 (N-10)

01-08-79

01-21-82

09-17-84

09-17-87

1412-4

11-03-75

01-01-77 Time of Examination for Classes 1, 2, and 3,Section III

Vessels Modified High Yield Strength Steel for Section III, Division

1, Class 1 Vessels Code Case 1412-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.

The material given in the Inquiry section of the Code Case should be SA-508, Class 4b, instead of SA-508, Class 4.

1414-5 (N-11-5)

08-29-77 High Yield Strength Cr-Mo

08-29-80 Steel for Section III, Division

1, Class 1 Vessels Code Case 1414-5 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.

1423-2

03-09-72 Wrought Type 304 and 316

07-01-77 with Nitrogen Added, Sections I, III, VIII, Division 1 and 2 Code Case 1423-2 was acceptable subject to com pliance with the recommendations contained in Regu latory Guides 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," and 1.44, "Control of the Use of Sensitized Stainless Steel."

1.85-5

(4)

N-351

1434-1

03-09-72 Postweld Heat Treatment of

01-01-78 SA-487 Class 8N Steel Cast ings,Section III

cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.

1456-2 (N-15)

06-25-73 Substitution of Ultrasonic Ex

03-01-79 amination for Progressive Penetrant or Magnetic Particle Examinations of Partial Pene tration and Oblique Nozzle At tachment Welds,Section III

1474-1

10-29-71 (N-17)

01-08-79

01-21-82

01-21-85

01-21-88

01-21-91

1475-16

03-02-74

07-01-75 Integrally Finned Tubes for Section III

Ferritic-Austenitic Stainless Steel Seamless Tubes for Sec tion III, Class 2 and 3 Construction

1498-1

11-06-72 SA-508-Class 2 and 3, Mini (N-22)

01-08-79 mum Tempering Temperature,

07-01-82 Section III

1515

03-09-72 Ultrasonic Examination of

07-01-77 Ring Forgings for Shell Sec tions,Section III, Class 1 Ves sels

1521-1

04-29-74 Use of H-Grades of SA-240,

01-01-78 SA-479, SA-336, and SA-358,Section III

Code Case 1521-1 was acceptable subject to com pliance with the recommendations contained in Regu latory Guides 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," and 1.44, "Control of the Use of Sensitized Stainless Steel."

1527

06-26-727 Integrally Finned Tubes, Sec (N-26)

01-08-79 tion III

01-21-82

01-21-85

01-21-88

01-21-91

1528-3

11-03-75 High Strength Steel SA-508,

01-01-78 Class 2 and SA-541, Class 2 Forgings,Section III, Class 1 Components Code Case 1528-3 was acceptable subject to the following condition in addition to those conditions spe

6Code Case was annulled on date as indicated, but the annulment wasfirst so indicated in Revision 12 of this guide.

7Corrected Date.

15296

06-29-72

07-01-73

1531

08-14-72

03-21-77 Materials for Instrument Line Fittings,Section III

Electrical Penetrations, Special Alloys for Electrical Penetra tion Seals,Section III

1532

08-14-72 Section III, Class 3 Compo

01-01-78 nents Made of 8 Percent and 9 Percent Nickel Steel

1542-1 (N-33)

1557-3 (N-37-3)

04-29-74

01-08-79

01-21-82

01-21-85

01-08-79

07-01-82 Type 403 Forgings or Bars for Bolting Material,Section III

Steel Products Refined by Sec ondary Remelting,Section III

and VIII, Division 1 and 2

1567

03-03-73 Testing Lots of Carbon and

01-01-78 Low Alloy Steel Covered Elec trodes,Section III

1568

03-03-73 Testing Lots of Flux Cored and

01-01-78 Fabricated Carbon and Low Alloy Steel Welding Elec trodes,Section III

1571

03-03-73 (N-41)

01-08-79

01-21-82

01-21-85

1578

06-25-73 (N-43)

01-08-79

07-01-82

1583

06-25-73

03-21-77

15876

08-13-73

12-31-75

1590

08-13-73

03-21-77

1602-1

04-29-74

12-31-74 Additional Material for SA-234 Carbon Steel Fittings,Section III

SB-167 Nickel-Chromium-Iron (Alloy 600) Pipe or Tube, Sec ion III

Use of 80-40 Carbon Steel Castings,Section III

SA-508 Class 3 Forgings with

0.4/1.0 Ni for Section III and VIII, Division 2 Construction Chemical Analysis Variations,Section III Construction Use of SB-42 Alloy 122, SB-111 Alloys 122, 715 and

706, SB-171 Alloys 715 and

706 and SB-466 Alloys 706 and 715,Section III, Class 2 and 3 Components

1603

12-17-73 Toughness Tests When Cross

07-01-74 Section Limits Orientation and Location of Specimens

1.85-6

Cr-Ni-Mo-V Bolting Material for Section III, Class 1 Compo nents

1608-1

12-17-73 Use of ASME SB-265,

03-21-77 SB-337, SB-338, SB-348, and SB-381, Grades 1, 2, 3, and 7 Unalloyed Titanium and ASTM B-363 Titanium Weld ing Fittings,Section III, Class

2 and 3 Components

1612

12-17-73 Use of Type 308 Stainless Steel (N-56)

07-01-78 Rod and Bar for Section III,

Class 1, 2, 3, and CS Construc tion

1613

12-17-73

01-01-78

1615

12-17-73

01-01-78

16166

12-17-73

07-01-75 Use of SA-372 Class IV Forg ings,Section III Construction Use of A587-73,Section III,

Class 3 Construction Ultrasonic Examination of Seamless Austenitic Steel Pipe,Section III, Class 1 Construc tion

16226

03-02-74 PWHT of Repair Welds in Car

01-01-76 bon Steel Castings,Section III,

Class 1, 2, and 3

1625

03-02-74

12-31-74

1626-1

01-08-79 (N-65-1) 01-21-82

01-21-85

1634-2

08-13-76 (N-68)

07-01-78

16378

04-29-74

01-01-75

16456

08-12-74

01-01-76 Repair of Section III Class 2 and 3 Tanks Normalized and Tempered

1-1/4 Cr Low Alloy Steel Forg ings,Section I and Section III

Use of SB-359 for Section III,

Division 1, Class 3 Construc tion Effective Date for Compliance with NA-3700 of Section III

Use of DeLong Diagram for Calculating the Delta Ferrite Content of Welds in Section III, Class 1, 2, and CS

Construction

1648

08-12-74 SA-537 Plates for Section III,

07-01-76 Class 1, 2, 3, and MC Compo nents

16496

08-12-74 Modified SA 453-GR 660 for

01-01-76 Class 1, 2, 3, and CS Construc tion

8Code Case 1637 was accepted only on a case-by-case basis.

1605

11-05-73

11-20-78

03-17-80

1698 (N-92)

06-30-757

11-20-78

07-13-81 Waiver of Ultrasonic Transfer Method,Section III, V, and VIII, Division 1 Code Case 1698 was acceptable subject to the fol lowing conditions in addition to those specified in the Code Case: The material from which the basic calibra tion block is fabricated should be of the same product form, alloy, and heat treatment as the material being ex amined. Alloys of equivalent P-number grouping may be used for the fabrication of calibration blocks if ad justments to signal height can be made to compensate for sound beam attenuation difference between the cal ibration block and the material under examination by following the transfer method procedure of T-535.1(d),

Article 5,Section V, ASME B&PV Code, 1977 edition.

1713

08-11-75 Small Material Items, Section

12-31-75 III, Division 1, Class 1, 2, 3, CS and MC

1714-2

08-28-78 (N-102-2) 07-13-81

06-30-84

1722-1

01-08-79 (N-107-1) 01-08-82 Postweld Heat Treatment of P-1 Material,Section III,

Class MC

Vacuum, Carbon Deoxidized SA-508 Forgings,Section III,

Division 1

1.85-7

1650

08-12-74 Use of SA-414 Grade C for

12-31-74 Class 2 and 3 Components,Section III, Division 1

1664

11-04-74 Use of Cr-Ni-Fe-Mo-Cu-Cb

03-21-77 Stabilized Alloy Cb-3 for Sec tion III Class 2 and 3 Construc tion

1666

11-04-74 Use of SB-12, Alloy 122 for

07-01-75 Class 2 and 3 Construction

1682-1

08-11-75 Alternate Rules for Material

12-31-75 Manufacturers and Suppliers,Section III, Subarticle NA-3700

16846

03-03-75 A637 Grade 718 for Bolting

01-01-76 Class 1 and 2 Construction

16906

04-28-75 Stock Materials for Section III

01-01-77 Construction,Section III, Divi sion 1

1691

04-28-75 Ultrasonic Examination in Lieu

01-01-78 of Radiography of Repair Welds for Vessels,Section III,

Class 1

1747 (N-124)

1748 (N-125)

1754 (N-126)

1755-1 (N-127)

03-01-76

01-08-79

07-13-81

07-13-84

07-13-87 Requirements for Martensitic Stainless Steel Forgings with

13% Chromium and 4% Nick el,Section III, Division 1

03-01-76 Low Carbon Austenitic Stain

07-01-78 less Steel Pipe Welded With Filler Metal,Section III, Divi sion 1, Construction

01-14-77

01-07-80

12-13-82

02-20-86

12-07-87

07-01-88

01-14-77

01-07-80

02-14-83

02-20-86

02-20-89

02-20-92 Hard Surfacing by the Spray Fuse Method,Section III,

Class 1, 2, and 3 Construction Alternative Rules for Examina tion of Welds in Piping, Sec tion III, Class 1 and 2 Construction

1724

11-03-75 Deviation from the Specified (N-108)

07-01-78 Silicon Ranges in ASME Ma terial Specifications,Section III, Division 1, and VIII, Divi sion 1 and 2

1728

11-03-75 Steel Structural Shapes and

07-01-77 Small Material Products for Component Supports,Section III, Division 1 Construction

1740

12-22-75 Weld Metal Test,Section III,

07-01-76 Class 1, 2, 3, MC and CS

1741-1

01-14-77 Interim Rules for the Required

01-01-78 Number of Impact Tests for Rolled Shapes,Section III, Di vision 1, Subsection NF, Com ponent Supports

1742

03-01-76 Use of SB-75 Annealed Copper

07-01-76 Alloy 122,Section III, Divi sion 1, Class 2 Construction

1743

03-01-76 Use of SB-98 Cu-SiB Rod

07-01-76 CDA651 Section III, Division

1, Class 2 Components

1746

03-01-76 Leak Testing of Seal Welds, (N-123)

03-01-79 Section III, Division 1, Class 1,

2, and 3 Construction

1770

(N-139)

08-13-76 Testing of Electroslag Wire and

01-01-79 Flux for Class 1, 2, 3, MC, and CS Construction,Section III,

Division 1

1772

08-13-76 (N-140)

08-30-79

07-16-82

12-31-85

1773

08-13-76

07-01-77 Use of SA-453 Bolts in Service Below 800'F Without Stress Rupture Tests,Section III,

Division 1 Use of Other Product Forms of Materials for Valves,Section III, Division 1

1777

08-13-76 Use of SA-106, Grade C in

07-01-77 Class MC Construction, Sec tion III, Division 1

1781 (N-147)

1E

09-10-76 Use of Modified SA-487 Grade

07-01-78 CA6NM,Section III, Division

1, Class 1, 2, 3, MC or CS

1782

09-10-76 (N-148)

08-30-79

07-16-82

06-30-83

1787

09-10-76

01-01-78

1793 (N-156)

1794 (N-157)

1795 (N-158)

01-14-77

01-07-80

02-14-83

02-14-86

01-14-77

01-07-80

01-07-83

01-14-77

07-01-78 Use of Copper-Nickel Alloy

962 for Castings,Section III,

Division 1, Class 3 Construction Depth of Weld Repairs for Forgings,Section III, Division

1, Class 1, 2, 3, MC and CS

Construction Structural Steel Rolled Shapes,Section III, Division 1, Class 2,

3, and MC

Use of Seamless Al-Br, Alloy CDA 614 Pipe,Section III,

Division 1, Class 3 Examination of Weld Repairs in Forgings,Section III, Divi sion 1, Class 1, 2, 3, MC and CS

1.85-8

1760

04-26-76 Maximum Dimensions for Iso

01-01-78 lated Pores in Welds--Class 1 Components,Section III, Divi sion 1

1766

04-26-76 Testing Requirements for

07-01-77 Welding Materials, Class 1, 2,

3, MC and CS Construction,Section III, Division 1

1767

04-26-76 Examination of Tubular Prod

01-01-77 ucts Without Filler Metal Class 1 Construction,Section III, Division 1

1798

01-14-77 Use of ASTM A352-75,

01-01-78 Grades LCA and LCC,Section III, Division 1, Class 1, 2, and

3

1810

03-03-77 Testing Lots of Carbon Steel

03-03-80 Solid, Bare Welding Electrode or Wire,Section III, Division

1, Class 1, 2, 3, MC, and CS

18199

03-23-77 Use of Type XM-19 for

01-01-78 Construction,Section III, Divi sion 1, Class 1, 2, 3

1819-110,11 03-23-77 (N-176-1) 03-23-80

08-25-80

08-25-83

1820

(N-177)

03-23-77

03-17-80

02-14-83

.01-01-84 Use of Type XM-19 for Construction,Section III,

Division 1, Class 1, 2, and 3 Alternative Ultrasonic Examination Technique,Section III, Division 1 N-178

05-25-77 Use of ASTM B271, CDA

01-01-80

954, Alloy 9C for Class 3 Construction,Section III, Divi sion 1 N-180

07-11-77 Examination of Springs for

07-01-78 Class 1 Component Standard Supports,Section III,

Division 1 N-181

07-11-77 Steel Castings Refined by the

07-11-80

Argon Decarburization Pro cess,Section III, Division 1, Construction N-183

07-11-77 Use of Modified SA-182 Grade

01-01-80

F22 for Section III, Division 1, Class 1, 2 and 3 Construction N-190

08-29-77 Use of SA-455 for Class 3

07-01-78 Components,Section III, Divi sion 1 N-204

03-20-78 Use of Modified SA-508, Class

01-01-81

3, and SA-541, Class 3 for Sec tion III, Division 1, Class 1, 2, and 3 Construction N-206

03-20-78

03-16-81

06-30-83 N-207-1 03-19-79

01-21-82

01-21-85 Use of ASTM B151-75 Copper-Nickel Alloy 706 Rod and Bar for Section III,

Division 1, Class 3 Construc tion Use of Modified SA-479 Type XM-19 for Section III, Divi sion 1, Class 1, 2, 3, or CS

Construction N-223

11-30-78 Requirements for Stainless

11-20-81 Steel Precipitation Hardening,Section III, Division 1, Class MC

N-224-1 05-11-81

04-05-84

04-05-87

04-05-90

Use of ASTM A500 Grade B

and ASTM A501 Structural Tubing for Welded Attach ments for Section III,

Class 2, 3, and MC

N-225

11-20-78 Certification and Identification

01-01-81 of Material for Component Supports,Section III, Division

1 N-227

07-09-79 Examination of Repair Welds,

07-09-82 Section III, Class 2 and 3 Tanks N-242-1

04-10-80

05-06-83

06-30-84 Materials Certification,Section III, Division 1, Classes 1, 2, 3, MC, and CS Construction Code Case N-242-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Applicants should identify in their Safety Analysis Reports the components and sup ports for which the Code Case is being applied and should specify the respective paragraphs of the Code Case.

9This Code Case was reaffirmed as Case 1819-1. See Regulatory Position

2, Case 1819-1, for the effective dates.

10Case 1819 (N-176) was annulled December 31,1977. However, itwas later reaffirmed to continue providing rules pertaining to external pres sure charts.

llCode Case N-176-1: The 3-23-80 is an annulment date. This Casewas allowed to expire on 3-23-80 because of an administrative error. It was reinstated on 8-25-80 with no technical changes. It is, therefore, con sidered to be in effect during that lapse in time. The 8-25-83 is the man datory annulment date. The Case did not appear in Revisions 18-21 of this guide because of the ASME administrative error.

N-245

07-09-79

07-16-82

07-17-85 Use of ASTM B61-76 and B62-76 Copper Alloy Castings for Section III, Division 1, Class 3 Construction N-246

07-09-79 Use of SB-169, Alloy CA 614,

09-07-82 Section III, Division 1, Class 3 N-248

08-30-79 Alternative Reference Radio

07-01-80 graphs,Section III, Division 1, Classes 1, 2, 3, MC, and CS

Construction

1.85-9

N-259

01-07-80 Ni-Cu-Al Bolting Material SB

02-14-83

164 Modified,Section III,

01-01-84 Division 1, Class 3 N-26512

01-07-80 Modified SA-487 Castings,

09-01-83 Section III, Division 1, Class 1

12-31-84

05-19-85 N-267

01-07-80

Double-Wall Radiography,

07-01-81 Section III, Division 1, Class 1 and 2 N-274

03-17-80

09-07-82

06-30-86 Alternative Rules for Examina tion of Weld Repairs for Section III, Division 1 Construction Code Case N-274 was acceptable subject to the fol lowing condition 13 in addition to those conditions spe cified in the Code Case. Paragraph 6 should be expand ed as follows: The ultrasonic examination procedures shall be proven by actual demonstration, to the satisfac tion of the Authorized Nuclear Inspector, that the pro cedures are capable of detecting unacceptable cracks according to Section XI requirements.

N-277

03-17-80

Use of Type XM-19 Austenitic

09-17-80 Stainless Steel for Section III,

Division 1, Class MC

Construction N-295

01-15-81

12-11-81

06-30-82 NCA-1140, Materials,Section III, Division 1 N-296

11-17-80

Welding Material,Section III,

12-01-83 Division 1 Construction N-298

11-17-80

Examination of Component

12-01-83 Supports,Section III, Division

1, Class 1, 2, 3, and MC

N-299-1

07-18-85

02-23-87 Use of Nickel-Chromium Molybdenum-Columbium Alloy 625 Forgings,Section III, Division 1, Class 2 and Class 3 Components

12Code Case N-265 was allowed to expire on 1-7-83 because of an ad ministrative error. It was reinstated on 9-1-83 with no technical changes. The Case is, therefore, considered in effect during that period of time. Again, Code Case N-265 was allowed to expire on 12-31-84 (mandatory annulment date). It was reinstated as N-265-1 on

5-19-85. Because of the circumstances and because there were no changes in the Code Case, the NRC considers that this Case was in ef fect during the period of 12-31-84 through 5-19-85.

13The reason for the conditional acceptance of paragraph 6 is to make cer tain that there is a qualified ultrasonic testing procedure capable of de tecting small flaws and differentiating the small flaws from geometric reflectors. This paragraph does not in any way alter the acceptance cri teria as specified in paragraph 3.

N-310-1 08-14-81 Certification of Bolting Materi

07-01-82 als,Section III, Division 1, Class 1, 2, 3, MC and CS

Code Case N-310-1 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: Each applicant who applies the Code Case should indicate in the referencing Safety Analysis Report (1) in what way the bolting does not meet NCA-3800 (or NA-3700), (2) where the bolting will be used in the plant, and (3) how it will be shown that the bolting material properties required by the Equipment Support Design Specification are present in the actual bolting material.

N-317

07-13-81 ASTM A276 Bar Section III,

07-01-82 Division 1 N-321-1

12-05-85 Use of Modified SA-249,

12-05-88 Grade TP 304,Section III, Di vision 1, Class 1 N-337-1

07-18-85 Use of ASTM B525-70 Grade

07-18-88

11, Type II, Sintered Austentic

03-14-91 Stainless Steel for Class 2, 3,

03-14-94 and MC Component Standard Supports,Section III, Divi sion 1 N-342

04-02-82 Use of SA-249 and SA-312

04-02-85 Type 317 Stainless Steel, Sec tion III, Division 1, Classes 1,

2, and 3 N-348

09-09-82 Use of SA-574 Socket Head

09-07-8514 Cap Screws,Section III, Divi sion 1 Code Case N-348 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants should justify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.

N-348-1

09-07-8514 Use of SA-574 Socket Head

02-20-86 Cap Screws,Section III, Divi

02-20-89 sion 1 Code Case N-348-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Applicants should justify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.

14Code Case N-348 was annulled on 9-7-85. It was reinstated as N-348-1 on 2-20-86. Because of the circumstances and because there were no changes in the Code Case, the NRC considers that the Code Case was in effect during the period 9-7-85 through 2-20-86.

1.85-10

N-348-2 08-14-90 Use of SA-574 Socket Head

08-14-93 Cap Screws,Section III, Divi sion 1 Code Case N-348-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Applicants should justify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.

N-352-1 07-18-85 Use of SA-638 Grade 660

06-30-86 Forgings and Bars Below

700'F Without Stress Rupture Tests,Section III, Division 1 N-353

07-16-82

05-19-85

09-05-88 N-367

02-14-83

02-19-86

02-19-89 Marking of SA-354 Grade BD

Bolting,Section III, Division 1 SA-372 Type V, Grade 1, Class B,Section III, Division 1 N-371-1 07-18-85

12CR-1W-1Mo-1/4V Marten

07-18-88 sitic Stainless Steel Valve In ternals,Section III, Division 1 N-372

02-14-83 SB-163 Ni-Fe-Cr-Mo-Cu Alloy

12-31-83

825 (UNS N08825) Tubing,Section III, Division 1 N-378

10-28-83 Examination of Piping Support

10-28-8615 Material,Section III, Division

1, Class 1 N-379-1 07-18-85

07-18-88

03-14-91

07-18-91 N-388

07-25-83

07-30-86

02-23-87 Bimetallic Tubing Section III,

Division 1, Class 1 Component Support Bolting,Section III, Division 1, Classes

2, 3, and MC

N-398

02-20-84 Reporting of Charpy-V Notch

02-20-87 Test Results,Section III, Divi sion 1 Code Case N-398 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: The Code Case is not acceptable to steam generator or reactor coolant pump supports.

Applicants wishing to use this Code Case should indi cate in the Safety Analysis Report the component sup ports to which the case is applied for review on a case by-case basis.

15The annulment date of 12-31-84 that was listed in Revisions 24 and 25 was in error. The annulment date should be 10-28-86.

N-459

05-04-88

03-14-91

03-14-94 SA-508 Basic Oxygen-Ladle Furnace Process for Code Construction,Section III, Divi sion 1 N-470

03-08-89 Class MC Material Require

03-08-92 ments [NE-2121(c)],Section III, Division 1 N-475

12-11-89 Materials in Inventory, Section

12-11-92 III, Division 1 N-482

03-05-90 Direct Quenched Stainless Bar,

03-05-93 ASTM A 479-88b,Section III,

Division 1 N-501

07-27-92 Alternative Rules to

12-31-93 NCA-3800, 1990 Addenda Section III, Division 1

3. REVISED CODE CASES

Code Cases that were endorsed by the NRC in a prior version of this guide and were superseded by re vised Code Cases on or after July 1, 1974, should be considered as not endorsed as of the date of the ASME

action that approved the revised version of the Code Cases. These Code Cases that are no longer endorsed are listed in the following by number, effective dates, 16 and title. 17

1332-6

03-09-72 Requirements for Steel Forg

01-08-79 ings,Section III and VIII, Divi sion 2

1335-9

04-29-74

08-28-78

1337-9

04-29-74

04-28-75

1337-10 04-28-75

05-15-78

1344-5

04-29-74 (N-5)

01-08-79

01-21-82

12-13-82 Requirements for Bolting Materials Special Type 403 Modified Forgings or Bars,Section III

Special Type 403 Modified Forgings or Bars,Section III

Nickel-Chromium, Age-Har denable Alloys (Alloy X750),

Section III

1358-5

11-03-75 High Yield Strength Steel, Sec (N-7)

01-08-79 tion III, Division 1, Class 1

01-21-82 Vessels

12-13-82 Code Case 1358-5 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.

16Earlier date-date Code Case was approved by ASME; later date---date revision of Code Case was approved by ASME.

17Code Cases 1334-2, 1337-7, 1344-3, 1484, 1521, and 1542, which were listed in the original issue of this guide, were revised by the ASME

prior to July 1, 1974.

1.85-11

1395-3

11-06-72 SA-508, Class 2 Forgings with

01-08-79 Modified Manganese Content,Section III or Section VIII, Di vision 2

1407-2

06-26-72 Time of Examination for Class

07-01-74

1, 2, and 3,Section III Vessels

1414-3

11-03-75 High Yield Strength Cr-Mo

03-01-76 Steel for Section III, Division

1, Class 1 Vessels Code Case 1414-3 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.

1414-4

03-01-76 High Yield Strength Cr-Mo

08-09-77 Steel for Section III, Division

1, Class 1 Vessels Code Case 1414-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.

1484-1

04-29-74 SB-163 Nickel-Chromium-Iron

11-04-74 Tubing (Alloy 600) at a Speci fied Minimum Yield Strength of 40.0 Ksi,Section III, Class 1

1484-2

11-04-74 SB-163 Nickel-Chromium-Iron

08-13-76 Tubing (Alloy 600 and 690) at a Specified Minimum Yield Strength of 40.0 Ksi,Section III, Class 1

1484-3 (N-20)

08-13-76

08-30-79

07-16-82

05-19-85

09-05-85 SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690)

and Nickel-Iron-Chromium Alloy 800 at a Specified Mini mum Yield Strength of 40.0

Ksi,Section III, Division 1, Class 1 N-20-1

09-05-85 SB-163 Nickel-Chromium-Iron

12-07-87 Tubing (Alloy 600 and 690)

and Nickel-Iron-Chromium Alloy 800 at a Specified Mini mum Yield Strength of 40.0

Ksi,Section III, Division 1, Class 1 N-20-2

12-07-87 SB-163 Nickel-Chromium-Iron

11-30-88 Tubing (Alloy 600 and 690)

and Nickel-Iron-Chromium Alloy 800 at a Specified Mini- mum Yield Strength of 40.0

Ksi, and Cold Worked Alloy

800 at a Yield Strength of 47.0

Ksi,Section III, Division 1, Class 1

149218

10-29-71 Post Weld Heat Treatment,

03-03-75 Section I, III and VIII, Division

1 and 2

1557-2

12-17-73 Steel Products Refined by Sec

01-08-79 ondary Remelting

1618

03-02-74 Material for Core Support

03-03-75 StructuresSection III, Subsec tion NG

Code Case 1618 was acceptable subject to the fol lowing conditions in addition to those specified in the Code Case: a. Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.

b. Use of alloy ASTM A-564 Grade 631 is not accept able on a generic basis.

1618-1

03-03-75 Material for Core Support

03-01-76 Structures,Section III, Subsec tion NG

Code Case 1618-1 was acceptable subject to the following condition in addition to those specified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.

1618-2 (N-60)

03-01-76 Material for Core Support

01-08-79 StructuresSection III, Division

01-21-82

1, Subsection NG

05-25-83 Code Case 1618-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition.

N-60-1

05-25-83 Material for Core Support

09-17-84 Structures,Section III, Divi sion 1 Code Case N-60-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition.

18Code Case 1492 is no longer listed by ASME as a Section III Code Case and is therefore deleted from the acceptable listing

1.85-12 L

N-60-2

09-17-84 Material for Core Support

09-05-85 Structures,Section III, Divi sion 1 Code Case N-60-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition. For SA-479 material, the maximum yield strength should not exceed 90,000 psi in view of the susceptibility of this material to environmental cracking.

N-60-3

09-05-85 Material for Core Support

07-27-88 Structures,Section III, Divi

05-13-91 sion 1 Code Case N-60-3 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition. For SA-479 material, the maximum yield strength should not exceed 90,000 psi in view of the susceptibility of this material to environmental cracking.

N-60-4

05-13-91 Material for Core Support

02-15-94 Structures,Section III, Divi sion 1 Code Case N-60-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition. The maximum yield strength of strain-hardened austenitic stainless steel should not ex ceed 90,000 psi in view of the susceptibility of this ma terial to environmental cracking.

1626

03-02-74 Normalized and Tempered

01-08-79

1-1/4 Cr Low Alloy Steel Forg ings, Section 1,Section III, and Section VIII, Division 1 and 2

1634

07-01-74 Use of SB-359 for Section III,

08-12-74 Class 3 Construction

1634-1

08-12-74 Use of SB-359 for Section III,

08-13-76 Class 3 Construction

1644

08-12-74 Additional Materials for Com

04-28-75 ponent SupportsSection III,

Subsection NF, Class 1, 2, 3, and MC Construction Code Case 1644 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: The maximum measured ulti mate tensile strength of the component support material should not exceed 170 Ksi.

1644-1

04-28-75 Additional Materials for Com

06-30-75 ponent Support-Section III,

Subsection NF, Class 1, 2, 3, and MC Construction Code Case 1644-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi.

1644-2

06-30-75 Additional Materials for Com

11-03-75 ponent Supports-Section III,

Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi.

1644-3

11-03-75 Additional Materials for Com

03-01-76 ponent Supports--Section III,

Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-3 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi.

1644-4

03-01-76 Additional Materials for Com

08-13-76 ponent Supports and Alternate Design Requirements for Bolted Joints,Section III, Divi sion 1, Subsection NF, Class 1,

2, 3 and MC Construction Code Case 1644-4 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by he applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub-

1.85-13

ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

1644-5

08-13-76 Additional Materials for Com

03-03-77 ponent Supports and Alternate Design Requirements for Bolted Joints,Section III, Divi sion 1, Subsection NF, Class 1,

2, 3 and MC Construction Code Case 1644-5 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

1644-6

03-03-77 Additional Materials for Com

11-21-77 ponent Supports and Alternate Design Requirements for Bolted Joints,Section III, Divi sion 1, Subsection NF, Class 1,

2, 3 and MC Construction Code Case 1644-6 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub j ect to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

1644-7

11-21-77 Additional Materials for Com (N-71-7) 05-15-78 ponent Supports,Section III,

Division 1, Subsection NF,

Class 1, 2, 3 and MC Compo nent Supports Code Case 1644-7 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

1644-8

05-15-78 Additional Materials for Com (N-71-8) 01-07-80 ponent Supports,Section III,

Division 1, Subsection NF,

Class 1, 2, 3 and MC Compon ent Supports Code Case 1644-8 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

1.85-14 I

1644-9

01-07-80

Additional Materials for Com (N-71-9) 05-11-81 ponent Supports Fabricated by Welding,Section III, Division

1, Subsection NF, Class 1, 2, 3, and MC Component Supports Code Case 1644-9 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: In the last sentence of para graph 5.3, reference should be made to paragraph

4.5.2.2, "Alternate Atmosphere Exposure Time Peri ods Established by Test," of the AWS D. 1.1 Code for the evidence presented to and accepted by the Autho rized Inspector concerning exposure of electrodes for longer periods of time.

N-71-10 05-11-81

06-17-82 Additional Materials for Com ponent Supports Fabricated by Welding,Section III, Division

1, Subsection NF, Class 1, 2, 3, and MC Component Supports Code Case N-71-10 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup port material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con sidered acceptable for a material and, under this condi tion, the Design Specification should specify impact testing for the material. For these cases, it should be de monstrated by the applicant that (1) the impact test re sults for the material meet code requirements and (2)

the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the ma terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time.

N-71-11

06-17-82

02-14-83 Additional Materials for Com ponent Supports Fabricated by Welding,Section III, Division

1, Subsection NF, Class 1, 2, 3, and MC Component Supports Code Case N-71-11 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup port material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con sidered acceptable for a material and, under this condi tion, the Design Specification should specify impact testing for the material. For these cases, it should be de monstrated by the applicant that (1) the impact test re sults for the material meet code requirements and (2)

the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the ma terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time.

N-71-12 02-14-83 Additional Materials for Comi

02-20-84 ponent Supports Fabricated by Welding,Section III, Division

1, Class 1, 2, 3, and MC

Code Case N-71-12 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that (a) a corrosive environment is not present and (b) the component that contains the materi al has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time. The provisions of paragraph 4.3 are not accept able on a generic basis. Paragraph 16.2.2 is not accept-

1.85-15

able as written and should be replaced with the follow ing: When not exempted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A materi al it shall be at least 1000'F (540'C) and shall not exceed 1150'F (6200C) for Class 1 and Class 2 mate rial and 1175°F (640'C) for Class 3 material. The new holding time at temperature for weld thickness (nomi nal) shall be 30 minutes for 1/2 inch or less, I hour per inch for thickness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 minutes for each additional inch over 5 inches.

N-71-13

02-20-84 Additional Materials for Sub

12-05-85 section NF, Classes 1, 2, 3 and MC Component Supports Fab ricated by Welding,Section III,

Division 1 Code Case N-71-13 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that (a) a corrosive environment is not present and (b) the component that contains the mate rial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time. Paragraph 16.2.2 is not acceptable as written and should be replaced with the following: When not ex empted by 16.2.1 above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F

(6200C) for Class 1 and Class 2 material and 1175°F

(6400C) for Class 3 material. The new holding time at temperature for weld thickness (nominal) shall be 30

minutes for 1/2 inch or less, 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> per inch for thick ness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap- ply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture toughness of Classes

1, 2, and 3 component supports shall be characterized in accordance with paragraph 5.3.4 of the USNRC Stan dard Review Plan (NUREG-0800) or on a case-by-case basis.

N-71-14

12-05-85 Additional Materials for Sub

12-16-86 section NF, Classes 1, 2, 3 and MC Component Supports Fab ricated by Welding,Section III,

Division 1 Code Case N-71-14 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material. For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that(a) a corrosive environment is not present and (b) the component that contains the materi al has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time. Paragraph 16.2.2 is not acceptable as written and should be replaced with the following: When not ex empted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F

(620'C) for Class 1 and Class 2 material and 1175"F

(640'C) for Class 3 material. The new holding time at temperature for weld thickness (nominal) shall be 30

minutes for 1/2 inch or less, 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> per inch for thick ness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap ply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture toughness of Classes

1, 2, and 3 component supports shall be characterized in accordance with paragraph 5.3.4 of the USNRC Stan-

1.85-16

dard Review Plan (NUREG-0800) or on a case-by-case basis.

N-71-15

12-16-86 Additional Materials for Sub

12-16-89 section NF, Classes 1, 2 3 and

02-12-93 MC Component Supports Fab ricated by Welding,Section III, Division 1 Code Case N-71-15 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup port material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con sidered acceptable for a material and, under this condi tion, the Design Specification should specify impact testing for the material. For these cases, it should be de monstrated by the applicant that (1) the impact test re sults for the material meet code requirements and (2)

the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the ma terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph 5.3, reference should be made to paragraph 4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time. Paragraph 16.2.2 is not acceptable as written and should be replaced with the following: When not ex empted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F

(620'C) for Class 1 and Class 2 material and 1175°F

(640'C) for Class 3 material. The new holding time at temperature for weld thickness (nominal) shall be 30

minutes for 1/2 inch or less, 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> per inch for thick ness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap ply only to piping supports and not to Class 1, 2, and 3 component supports. The fracture toughness of Classes

1,2, and 3 component supports shall be characterized in accordance with paragraph 5.3.4 of the USNRC Stan dard Review Plan (NUREG-0800) or on a case-by-case basis.

1682

01-29-75 Alternate Rules for Material

08-11-75 Manufacturers and Suppliers,Section III, Subarticle NA-3700

1714

08-11-75 Postweld Heat Treatment of

07-11-777 P-1 Material,Section III, Class MC

1714-1

07-11-777 (N-102-1) 08-28-78 Postweld Heat Treatment of P-1 Material,Section III, Class MC 1722

11-03-75 Vacuum, Carbon Deoxidized

01-08-79 SA-508 Forgings,Section III,

Division 1, and VIII, Division

1 and 2

1741

12-22-75 Interim Rules for the Required

01-14-77 Number of Impact Tests for Rolled Shapes,Section III, Di vision 1, Subsection NF, Com ponent Supports

1755

04-26-76 Alternative Rules for Examina

01-14-77 tion of Welds in Piping, Class

1 and 2 Construction,Section III, Division 1

1759

08-13-76 Material for Internal Pressure

05-15-78 Retaining Items for Pressure Relief Valves,Section III, Di vision 1, Class 1, 2, and 3 Code Case 1759 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants using this Case should also use Code Case 1711 for the design of pres sure relief valves.

N-188

08-29-77 Use of Welded Ni-Fe-Cr-Mo-Cu

05-15-78 (Alloy 825) and Ni-Cr-Mo-Cb (Alloy 625) Tubing,Section III, Division 1, Class 3 N-207

03-20-78 Use of Modified SA-479 Type

03-19-79 XM-19 for Section 1II, Divi sion 1, Class 1, 2, or 3 Construction N-224

11-20-78 Use of ASTM AO00 Grade B

05-11-81 and ASTM A501 Structural Tubing for Welded Attach ments for Section III, Class 2 and 3 Construction N-242

04-12-79 Materials Certification, Section

04-10-80

III, Division 1, Classes 1, 2, 3, MC, and CS Construction

1.85-17

Code Case N-242 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants should identify the components and supports requiring the use of para graphs 1.0 through 4.0 of the Code Case in their Safety Analysis Reports.

N-246-1 09-07-82 SB-169, Alloy C 61400, Sec

05-25-83 tion III, Division 1, Class 3 N-249

01-07-80 Additional Materials for Com

05-11-81 ponent Supports Fabricated Without Welding,Section III,

Division 1, Subsection NF,

Class 1, 2, 3, and MC Compo nent Supports Code Case N-249 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Footnote 2 of the Code Case should apply to all materials listed in Tables 1, 2, 3, 4, and 5 of the Code Case and should be so indicated on line 5 of the "Reply."

N-249-1 05-11-81

06-17-82 Additional Materials for Com ponent Supports Fabricated Without Welding,Section III,

Division 1, Subsection NF,

Class 1, 2, 3, and MC Compo nent Supports Code Case N-249-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Paragraph 7 of the "Reply"

should reference the requirements of NF-2600 instead of NF-2800. This is a typographical error in that NF-2800 does not exist.

N-249-2 06-17-82 Additional Materials for Sub

02-14-83 section NF Class 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 N-249-3

02-14-83

02-20-84 N-249-4 02-20-84

09-17-84 Additional Materials for Sub section NF Class 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Additional Material for Sub section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 The fracture toughness requirements as listed in Code Case N-249-4 apply only to piping supports and not to Classes 1, 2, and 3 component supports. The frac- ture toughness of Classes 1, 2, and 3 component sup ports should be characterized in accordance with para graph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis.

N-249-5 09-17-84 Additional Material for Sub

04-08-85 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 The fracture toughness requirements as listed in Code Case N-249-5 apply only to piping supports and not to Classes 1, 2, and 3 component supports. The frac ture toughness of Classes 1, 2, and 3 component sup ports should be characterized in accordance with para graph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis.

N-249-6 04-08-85 Additional Material for Sub

09-05-85 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-6 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph

5.3.4 of the USNRC Standard Review Plan (NUREG 0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

N-249-7

09-05-85 Additional Material for Sub

12-05-85 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-7 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph

5.3.4 of the USNRC Standard Review Plan (NUREG-

1.85-18

0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

N-249-8 12-05-85 Additional Material for Sub

12-16-86 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-8 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph

5.3.4 of the USNRC Standard Review Plan (NUREG 0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

N-249-9

12-16-86 Additional Material for Sub

05-06-89 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-9 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph

5.3.4 of the USNRC Standard Review Plan (NUREG 0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro- sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

N-249-10 05-06-89 Additional Material for Sub

05-13-91 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-10 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph

5.3.4 of the USNRC Standard Review Plan (NUREG 0800) or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

N-249-11 05-13-91 Additional Material for Sub

02-12-93 section NF, Classes 1, 2, 3 and MC Component Supports fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-11 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph

5.3.4 of the USNRC Standard Review Plan (NUREG 0800) or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

1.85-19

N-249-12 02-12-93 Additional Material for Sub

05-11-94 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-12 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: the fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph

5.3.4 of the USNRC Standard Review Plan (NUREG 0800) or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, is should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.

N-26519 01-07-80

09-01-83

12-31-84

05-19-85 N-299

11-17-80

11-28-83

07-18-85 N-321

07-13-81

07-13-84

12-05-85 N-337

04-02-82

05-19-85

07-18-85 Modified SA-487 Castings,Section III, Division 1, Class 1 Use of Nickel-Chromium Molybdenum-Columbium Alloy 625 Forgings,Section III, Division 1, Class 2 and Class 3 Components Use of Modified SA-249, Type

304 for Section III, Division 1, Class 1 Construction Use of ASTM B525-70 Grade II, Type II, Sintered Austenitic Stainless Steel for Class 2, 3, and MC Component Standard Supports,Section III,

Division 1 N-352

07-16-82

05-19-85

07-18-85 Use of SA-638 Grade 660

Forgings and Bars Below

7000 F Without Stress Rupture Tests,Section III, Division 1 N-370

02-14-83 Modified SA-705 Grade

07-18-85 XM-13 Forgings,Section III,

Division 1 N-370-1 07-18-85 Modified SA-705 Grade

12-05-85 XM-13 Forgings,Section III,

Division 1 N-371

02-14-83

12 Cr-1W-lMo-1/4V Marten

07-18-85 sitic Stainless Steel Valve In ternals,Section III, Division 1 N-379

04-04-83 Bimetallic Tubing Section III,

07-18-85 Division 1, Class 1 N-418

12-05-84 Use of Seamless Ni-Fe-Cr-Mo

07-30-86 Cu Low Carbon (UNS N08028 and UNS N08904) Tubing,Section III, Division 1, Classes

2 and 3 N-438

02-23-87 Fe-24.5Ni-21Cr-6.5 Mo-0.2N

03-08-89 (Alloy UNS N08367) Seamless and Welded Pipe, Tube, Plate, Bar, Fittings, and Forgings, Class 2 and 3 Construction,Section III, Division 1 N-438-1

03-08-89

03-05-90

Fe-24.5Ni-21Cr-6.5Mo-0.2N

(Alloy UNS N08367) Seamless and Welded Pipe, Tube, Plate, Bar, Fittings, and Forgings, Class 2 and 3 Construction,Section III, Division 1 N-438-2 03-05-90

UNS N08367 Material, Sec

07-27-92 tion III, Division 1, Class 2 and

3 Construction N-441

02-23-87

12-11-89

11-25-92 Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2 and 3 Construction,Section III,

Division 1

19Code Case N-265 was allowed to expire on 1-7-83 because of an ad ministrative error. It was reinstated on 9-1-83 with no technical changes. The Case is, therefore, considered in effect during that period of time. Again, Code Case N-265 was allowed to expire on 12-31-84 (mandatory annulment date). It was reinstated as N-265-1 on

5-19-85. Because of the circumstances and because there were no changes in the Code Case, the NRC considers that this Case was in ef fect during the period of 12-31-84 through 5-19-85.

N-443

05-07-87 High Yield Strength Cr-Mo

03-08-89 Steel, Class 1 Components,Section III, Division 1 N-466

03-08-89 Modified 9Cr-iMo Material

04-30-90

Section III, Division 1, Classes

1, 2, and 3

1.85-20

L

N-474

05-06-89 Design Stress Intensities and

03-05-90 Yield Strength Values for Alloy

690 With a Minimum Yield Strength of 35 ksi, Class 1 Components,Section III, Divi sion 1 N-474-1 03-05-90

03-05-93

12-09-93 Design Stress Intensities and Yield Strength Values for UNS

N06690 With a Minimum Spe cified Yield Strength of 35 ksi, Class 1 Components,Section III, Division 1 N-492

12-03-90

Grade 9 Titanium Alloy, Sec

05-11-94 tion III, Division I, Class 1, 2, and 3 N-497

05-13-91 Use of Fe-Ni-Cr-Mo-N

12-09-93 (CN-3MN) Cast Materials,Section III, Division 1, Class 2 and 3 Construction

4. UNACCEPTABLE CODE CASES

Code Cases for Class 1 components that are not on the approved list of this guide (paragraph C.1) or other regulatory guides, or for which authorization by the Commission has not been granted, are not acceptable for Class 1 components.

Code Cases for other classes of components that are not on the approved list of this guide (paragraph C.1) or other regulatory guides should be considered not acceptable on a generic basis.

D. IMPLEMENTATION

The purpose of this section is to provide informa tion to applicants regarding the use of this regulatory guide.

1. Except for those Code Cases that have been an nulled by action of the ASME, the NRC staff has found the Code Cases listed in the final version of this regulatory guide under Regulatory Position 1 acceptable for appropriate use. Other Code Cases may be considered for use in accordance with foot note 6 of the Codes and Standards rule, 10 CFR

50.55a.

2. Components ordered to a specific version of a Code Case need not be changed because a subsequent re vision of the Code Case is listed as the approved version in this guide.

3. Components ordered to a Code Case that was pre viously approved for use need not be changed be cause the Code Case has been subsequently an nulled.

4. Code Cases on the approved list may be applied to components that were in the process of construc tion prior to the effective date of the Code Case within the limits specified in the Code Case and ap plicable regulations or recommended in other regu latory guides.

1.85-21

APPENDIX

NUMERICAL LISTING OF CODE CASES

N-4-11 (1337-11)

N-294 N-443-1 N-7-1 N-329 N-466-1 N-20-3 N-351 N-469 N-60-5 N-370-2 N-474-2 N-71-16 N-404 N-484-1 N-131-1 (1759-1)

N-418-1 N-492-1 N-188-1 N-438-3 N-497-1 N-205 N-439 N-502 N-246-2 N-440

N-510

N-249-13 N-441-1 N-525 N-265-1

1.85-22

VALUE/IMPACT STATEMENT

A draft value/impact statement was published with the draft of this guide when it was published for public comment (Task DG-1049, May 1997). No changes were necessary, so a separate value/impact statement for Regulatory Guide 1.85 has not been prepared. A copy of the draft value/impact statement is available for inspection or copying for a fee in the NRC's Public Document Room at 2120 L Street NW., Washington, DC, under Task DG-1049.

1.85-23


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