ML20137V583

Rev 23 to Reg Guide 1.85, Matls Code Case Acceptability, ASME Section Iii,Div 1

ML20137V583
Person / Time
Issue date:	09/30/1985
From:	NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
To:
References
REGGD-01.085, REGGD-1.085, NUDOCS 8510040073
Download: ML20137V583 (13)

Text

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Resision 23

$[$[,,/

U.S. NUCLEAR REGULATORY COMMISSION September 1985 l

) REGULATORY GU DE

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OFFICE OF NUCLEAR REGULATORY RESEARCH REGULATORY GUIDE 1.85 MATERIALS CODE CASE ACCEPTABILITY ASME SECTION lil DIVISION 1 A.

INTRODUCTION Part 50 requires, in part, that measures be established for the control of special processing of materials and Section 50.55a, " Codes and Standards." of 10 ER Part that proper testing he performed.

50, " Domestic Licensing of Production and Utiluation Facilities," requires, m part, that components of the This regulatory guide hsts those Section ill ASME reactor coolant pressure boundary be designed, fabncated, Code Cases oriented to matenals and testing that are erected, and tested in accordance with the requirements generally acceptable to the NRC staff for implementation for Class I components of Section Ill, " Nuclear Power in the bcensing of hght-water-cooled nuclear power plants.

Plant Components,"' of the Amencan Society of Mechani-cal Engineers (ASME) Boiler and Pressure Vessel Code or Any information collection activities nrntioned in this equivalent quahty standards. Footnote 6 to s50.55a states regulatory guide are contained as requirements in 10 GR that the use of specific Code Cases may be authorued by Part 50, which provides the regulatory basis for this guide.

l the Commission upon request pursuant to 50.55a(a)C)(ii),

The information collection requirements in 10 &R Part 50 which requires that prop, sed alternatives to the described inve been cleared tnier OMB Clearance No, 3150 0011.

requirements or portions thereof provide an acceptable level of quahty and safety.

B.

DISCUSSION i

General Design Criterion 1, " Quality Standards and The Boiler and Pressure Vessel Committee of the ASME l

Records," of Appendix A, " General Desirn Criteria for publishes a document entitled " Code Cases."3 Generally, Nuclear Power Plants," to 10 CFR Part 50 requires, in the individual Code Cases that make up this document part, that structures, systems, and components important explain the intent of Code rules or provide for alterna-to safety be designed, fabncated, erected, and tested to tive requirements under special circumstances.

quality standards commensurate with the importance of the safety function to be performed. Where generally Most Code Cases are eventually superseded by revision to recognized codes and standards are used, Cnterion I tir Cale and thm are annulled by action of the ASME Council.

requires that they be identified and evaluated to deter-In stth mses, the intent d tie annulled Cale Case launts part mine their applicabihty, adequacy, and sufficiency and be of the revised Cale, and therefore continued use of the Code I

supplemented or modified as necessary to ensure a quality Case intent is sanctioned unir tir rules of the Gxle. In other product in keeping with th-required safety function.

cases, the Cale Case is anmiled luause it is no koger accept-able a tlute is no further rtxluirement for it. A Qxle Case that Criterion 30, "Quahty of Reactor Coolant Pressure was amroved for a particular situation and not for a generic Boundary," of the same appendix requires, in part, that appliatim should be tral udy fa mnstruction of the approved components that are part of the reactor coolant pressure situation bemuse anmhnent of such a Cale Case could result boundary be designed, fabricated, erected, and tested to in construction that would not meet Code requirements.

the highest quahty standards practical The Code Cases listed in this guide are limited to l

Appendix B, " Quality Assurance Criteria for Nuclear those cases appheable to Section !!! that are oriented i

Power Plants and Fuel Reprocessing Plants," to 10 CFR toward materials and testing.

I Copies may be obtained from the A merican Society or Mechanical Engineers, United Engineering Center, 345 East 47th All published Code Cases in the area of materials and test-Street, New York, New York 10017.

ing that are applicable to Section til of the Code and were 8510040073 850930 PDR REGGD 01* 085 R PDR Comments shou'egulatoryd be sent to tne secretare of tne Commission, U.S.

Nuclear R Commission, Washington, DC 20555, Regulatory Guides are issued to describe and make available to the Attention: Docketing and Service Branch, public methods acceptable to the NRC staff of implementing soecific parts of the Commission's regulations, to delineate tech-The guides are issued in the following ten broad divisions:

niques used by the staff in evaluating specific problems or postu-D Gu6 des are no{ or to provide gu6 dance to applicants. Regulatory lated accidents

1. Power Reactoes

6. Products substitutes for regulations, and compliance with

2. Research and Test Reactors

7. Transportation thern is not required. Methods and solutions different from those set

3. Fuels and Materials Facilitles

8. Occupational Health out in the guides will be acceptable if they provide a basis for the

4. Environmental and Siting

9. Antitrust and Financial Review findings requisite to the issuance or cont 6 nuance of a permit or

5. Materials and Plant Protection 10. General liCOnse by the Commission.

Coples of issued guides may be purchased at the current Government Pr6nting Of fice price. A subscription service for future guides in spe-This guide was issued afterconsideration of comments received from cific divisions is available through the Government Prtnting Office.

thO pubHC. Comments and suggest60ns for 6mprovements in these information on the subscription service and current GPO prices may guides are encouraged at all times, and guides will be revised, as be obtained by writing the Superintendent of Documents, U.S.

appropriate, to accommodate comments and to reflect new informa.

Government Printing Of f 6ce, Post Of fice Box 37082. Washington, tion or experience.

DC 20013-7082.

1 l

l i

olin effect on April 5,1984, were reviewed for inclusion in Code Case N-7-1 is acceptable subject to the following this guide, in addition to th: hsting of acceptable Code condition in addition to those conditions specified in Cases, this revision of the guide includes listings of (1) Code the Code Case: The information required to be devel-Cases that were identified as acceptable in a pnor version oped by Note 1 in the Code Case should be provided of this regulatory guide and that were annulled after the in each referencing Safety Analysis Report.

original issuance of this guide (June 1974) and (2) Code Cases that were identified as acceptable in a prior version of 1571 03-03-73 Additional Material for SA-234 this regulatory guide and that were superseded by revised (N-41) 01-08-79 Carbon Steel Fittings, Section til Code Cases after the original issuance of this guide (June 01-21-82 1974). Code Cases that are not listed herein are either not endorsed or will require supplementary provisions on an (2) Code Cases involving pipe and tubes:

individual basis to attain endorsement status.

1474-1 10-29-71 Integrally Fmned Tubes forSection The endorsement of a Code Case by this guide constitutes

( N-17) 01-08-79 111 acceptance of its technical position for appheations not 01-21-82 precluded by regulatory or other requirements or by the 1484-3 08-13-76 SB-163 Nickel-Chromium-Iron Tub-recommendations in tlus or other regulatory guides. Contin-(N-20) 08-30-79 ing ( Alloy 600 and 690) and Nickel-gent endorsement is indicated in regulatory position C.I.a 07-16-82 fron-Chromium Alloy 800 at a for specific cases. Ilowever, it is the responsibihty of the Specified Minimum Yield Strength user to make certain that no regulatory requirements are of 40.0 Ksi Section ill, Division 1, violated and that there are no conflicts with other recom-Class 1 mended limitations resulting from Code Case usage.

4 1527 06-26-72 Integrally Finned Tubes, Section Acceptance or endorsement by the NRC staff apphesonly (N-26) 01-08-79 III to those Code Cases or Code Case revisions with the date 01-21-82 of "Couned Approval" as shown in the regulatory position N-188-1 05-15-78 Use of Welded Ni-Fe-Cr-M o-Cu of this guide. Earber or later revisions of a Code Case are 07-13-81

( Alloy 825) and NiCrMo-Cb ( Alloy not endorsed by tlus guide. New Code Cases will require 625) Tubing, Section 111, Division evaluaticn by the NRC staff to determme if they quahfy 1, Class 2 and 3 for inclusion in the approved list. Because of the continu-N-224-1 05-11-81 Use of ASTM A500 Grade B and ing change in the status of Code Cases, it is planned that 04-05-84 ASTM A501 Structural Tubing for j this guide will require periodic updating to accommodate Welded Attachments for Section l

new Code Cases and any revtsions of existmg Code Cases.

Ill, Class 2, 3, and MC N 294 08-25-80 SB-148 Alloy 952 and 954, and C. REGULATORY POSITION 05-25-83 S B-62 Alloy 836 Fittings, Sec-tion 111, Division 1,

Class 2 2

1. The Section ill ASME Code Cases listed below(by N-321 07-13-81 Use of Modified SA-249, Type 304 number, date of Couned approval, and title) are acceptable for Section 111, Division I, Class I to the NRC staff for application in the construction of com-Construction pments forlightwater-cooled nuclear power plants. Their use N-342 04-02-82 Use of SA-249 and SA-312 Type 317 is acceptable within the limitations stated in the " Inquiry" Stainless Steel, Sectic,n 111, Divi-and " Reply" sections of each individual Code Case, within sion 1, Class 1, 2, and 3 the limitations of such NRC or other requirements as may N-379 04-04-83 Bimetallic Tubing Section 111, Divi-exist, and within the additional hmitations recommended sion 1, Class I by the NRC staff given with the individual Code Cases in N-404 04-05-84 Annealed Alloy UNS N 06625 Over the listing. The categonzation of Code Cases used in this UNS N 06600 Bimetallic Tubing, guide is intended to facihtate the Code Case hsting and is Section 111, Division 1, Class I not intended to indicate a limitation on its usage.

Code Case N-404 is acceptable subject to the follow-

a. Materials-oriented Code Cases (Code Case ing conditions in addition to those conditions speci-number, date of Council approval,3 and title):

fied in the Code Case: The outside layer of the bimetallic tubing should be limited to a minimum of (1) Code Cases involving plate:

5 percent and to a maximum of 40 percent of the wall thickness. The tolerance on the outside layer N-7-1 12-13-82 liigh Yield Strength Steel, Sec-of material should not exceed -0.000 to +0.007 inches tion Ill, Division 1, Class 1 Vessels of the specified design wall thickness.

• Lines indicate substantive changes from Revision 22.

(3) Code Cases involving bars and forgings:

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

\\' hen more than one date is given, the carher date is that on which the Code Case was approved by the ASME Council and the later date(s)is that on which the Code Case was rearfirmed 4

by the ASME Council.

Corrected date.

1.85-2

(N-3-10) 08-28-81 Section til tensile strength (UTS) of the component support mate-

}

1337-11 05-15-78 Special Type 403 Niodified Forgmgs nal should not exceed 170 Ksiin view of the susceptibil-9 (1542-1 N-4-i l )

07-13-81 or Ba rs, Section Ill, Division I, ity of high-strength matenals to brittleness and stress Class 1 and CS corrosion cracking. Certain applications may exist where 04-29-74 Type 403 Forgings or Bars for a UTS value of up to 190 Ksi could be considered (N-33) 01-08-79 Bolting N!aterial, Section 111 acceptable for a material and, under this condition, 01-21-82 the Design Specification should specify impact testing 1626-1 01-08-79 Normalized and Tempered 1-1/4 Cr for the material For these cases, it should be demon-(N-65-1) 01-21-82 Low Alloy Steel Forgings,Section I strated by the applicant t hat (1) the impact test and Section til results for the material meet code requirements and 1747 03-01-76 Requirements for N!artensitic Stain-(2) the material is not subject to stress corrosion (N-124) 01-08-79 less Steel Forrings with 13T Chro-cracking by virtue of the fact that (a) a corrosive 07-13-81 mium aru iickel, Section 111, environment is not present and (b) the component Division,

that contams the material has essentially no residual 1772

'W 76 Use m '. a3 3olts in Service st resses or assembly stresses, and it does not experi-(N-140) t-30-7 9 Below NF Without 3 tress Rup-ence frequent sustained loads in ser~ ice.

In the last 07-16-82 ture Tests, Section 111, Division I sentence of paragraph 5.3, reference should be made 1793 01-14-77 Structural Steel Rolled Shapes, See-to paragraph 4.5.2.2, " Alternate Atmosphere Fxpo-(N-156) 01-07-80 tion III, Division,1. Class 2, 3, and sure Time Penods hstabbshed by Test," of the AWS 02-14-83 MC D.I.1 Code for the evidence presented to and accepted N-299 11-17-80 Use of Nickel-Chronuun> Moly bde-by the Authorized Inspector concerning exposure of l

11-28-83 numColumbium Alloy 625 Forgings, electrodes for longer penods of time. Paragraph 16.2.2 Section ill, Division 1, Class 2 and is not acceptable as untten and should be replaced Class 3 Components with the following: When not exempted by 16.2.1, N-35:

07-16-82 Use of SA438 Grade 660 Forgings above, the pos weld head tieatment shall be performed and Bars Below 700

• F W!'hout in accordance with NF-4622 except that for ASTN!

Stress Rupture Tests, Section 111, A-710 Grade A matenal, it shall be at least 1000*F Division I (540 C) and shall nvi exceed 1150*l (620*C) for N-353 07-16-82 Marking of SA-354 Grade BD Bol, Class I and Class 2 material and i175*F (640*C) for ing Section !!!, Division 1 Class 3 matenal Th: new holding time at tempera-N-367 C14-8 3 SA 372 Ty pe V, Grade 1, Class B, ture for weld tluckness Ouminal) shall be 30 minutes for Section III, Division i 1/2 inch or less, I hour per inch for thickness over N-370 02-14-83 Modified SA-705 Grade XM 13 Forg-1/2 inch to 5 mches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 minutes ings,.Cection 111, Division I for each additional mch over 5 inches. The fracture N-388 07-25-83 Component Support Bolting, Sec-toughness requirements as hsted in this Code Case tion ill, Division 1, Classes 2, 3, apply only to piping supports and not to Class 1, and NIC 2, and 3 component su pport s.

The fracture tough-ness of Classes 1,

2, and 3 component supports (4) Code Cases involvmg general usage:

shall be characterized in accordance with caragraph 5.3.4 of the USNRC Standard Review Plan (NURFG-N-5-1 12-13-82 Nickel Chromium Age !!ardenable 0800) or on a case-by-case haus.

Alloys (Alloy X750), Section 111, Division 1, Classes 1, 2, 3, MC, 1714-2 08-28-78 Post welJ lleat Treatment of P-1 and CS (N-102-2) 07-13-8i M 7 t enal, Section 111, Class MC N 1 05-25-83 Material for Core Support Struc-1754 01-14-77 liard Surfacing by the Spray-Fuse tures, Section lit, Division 1

( N-126) 01-07-80 Method,Section III, Class i, 2 and 12-13-82 3 Construction Code Case N-60-1 is acceptable subject to the follow-1759-1 05-15-78 Matenal for Internal Pressure Retain-ing condition in addition to those conditions speci-( N-131-1 ) 07-13-81 ing items for Pressure Relief Valves.

fied in the Code Case: Welding of age-hardenable alloy 12-11-81 Section 111, Division 1, Class 1, 2, SA-453 Grade 660 and SA-637 Grade 688 should be and 3 performed when the material is in the solution-treated condition.

Code Case 1759-1 is acceptable subject to the following condition in addition to those conditions specihed in l

N-71-13 02-20-84 A&htional Matenals for Subsection the Code Case: Applicants using this Case should also NF, Classes 1, 2, 3 and MC Com-use Code Case 17!! for the design of pressure iehef ponent Supports Fabricated by valves.

Welding, Section 111, D,Cai i N-205 05-15 78 Use of Ductile Iron SA-395 for Code Case N-71-13 is acceptable subject to the following 07-13-81 Section Ill, Division I, Class 3 condition in addition to those conditions specified in Const ruction the Code Case: The maximum measured ultimate N-207-1 03-19-79 Use of Modified SA-479 Type XM-19 1.85-3

(

t 01-21-82 for Section lit, Division 1, Class 1, (2) Code Case involving bars and forgings:

2, 3, or CS Construction N-24 2-1 04-10-80 Materials Certification, Section 111, N-329 12-11-81 1 xamination of liar Material, Sec-05-06-83 Division 1 Classes 1, 2, 3 MC, and tion 111, Division I,

Class 1 CS Construction (3) Code Case involving pipe and tubes:

Code Case N-242-1 is acceptable subject to the followmg condition in addition to those conditions specified in 1755-1 01-14-77 Alternative Rules for Examination the Code Case. Applicants should identify m their

( N-127) 01-07-80 of Welds in Piping,Section III, Safety Analysis Reports the components and supports 02 14-83 Class I and 2 Construction for which the Code Case is being apphed and should specify the respective paragraphs of the Code Case.

(4) Code Cases involvmg general usage:

N-245 07-09-79 Use of ASTM 1361-76 and l'62-76 N-2 74 03-17-80 Alternatne Rules for I xamination 07-16-82 Copper Alloy Castmgs for Section 111, 09-07-82 of Weld Repairs for Section Ill, Davision 1, Class 3 Construction Division 1 Construction N-246-2 05-25-83 S8-169, Alloy 01400, Section 111, Division I, Class 3 N-249-4 02-20-84 Additional Material for Subsection Code Case N-274 is acceptable subject to the following 6

NF, Classes I, 2, and 3 Component condition in addition to those conditions specified Supports Fahncated Without Weld-in the Code Case. Paragraph 6 should be expanded as ing, Section Ill, Division i follows: The ultrasonic examination procedures shall be proven by actual demonstration, to the satisfaction The fracture toughness requirements as hsted in Code of the Authorized Nuclear Inspector, that the proce-Case N-249-4 apply only to piping supports and not dures are capable of detectmg unacceptable cracks to Classes 1, 2, and 3 component supports. The frac-according to Section XI requirements.

ture toughness of Classes 1, 2, and 3 component supports should be characterued m accordance with paragraph 5.3.4 of the USNRC Standard Review Plan N-298 11-17-30 1 xamination of Component Sup-(NUREG-0800) or on a case-by-case basis.

ports,Section III, Division 1, Class 1, 2,3, and MC 5

N-265 01-07-80 Modified SA-487 Castings, Section N-351 07-16-82 Use of Subsize Charpy V-Notch 09-01-83 Ill, Division 1, Class !

Specimens, Section Ill, Division 1 N-33 7 04-02-82 Use of ASTM B525-70 Grade II, N-378 10-28-83

!!xamination of Piping Support j

Type II, Sintered Austenitic Stain-Material, Section 111, Division I, I

less Steel for Class 2, 3, and MC Class !

Component Standard Supports, N-398 02-20-84 Reporting of Garpy-V Notch Test Section III, Division 1 Results, Section Ill, Division 1 N-348 09-09-82 Use of SA-574 Socket llead Cap Scre ws, Section Ill, Division 1 Code Case N-398 is acceptable subject to the follow-Code Case N-348 is acceptable subject to the follow-ing condition in addition to those conditions speci-ing condition in addition te those conditions spect-fled in the Code Case: The Code Case is not accept-fied in the Code Case: Applicants should justify in able to steam generator or reactor coolant pump their Safety Analysis Reports why use of these socket supports. Appheants wishing to use this Code Case head cap screws wdl not result in early failure from should indicate in the Safety Analysis Report the stress corrosion cracking.

component supports to which the case is applied for review on a case-by-case basis.

N-371 02-14-83 12 Cr lW.1Mo-1/4V Martensitic Stam-less Steel Valve Internals, Section lit, Division 1

2. Code Cases that were endorsed by the NRC in a prior version of this guide and were later annulled by

b. Testing-oriented Code Cases:

action of the ASMii Council should be considered as deleted from the list of acceptable Code Cases as of the (1) Code Case involving plates:

date of the ASME Council action that approsed the annulment. Such Code Cases that were annulled on or 1407 3 07-01-74 Time of Examination for Classes 1, (N-10) 01-08-79 2,

and 3 Section 111 Vessels 01-21-82 6T he reason for the condatmnal acceptance of paragraph 6 is 8Code Case N2f6 was allowed to expire on 140 tecause of an to make certaan that there is a quahtied ultrasonic testing proce-administrative error. It was reinstated on 94 83 with run teosnmt du re capable of detecting small flaws and darferentiatang the changes. The Case is therefore considered m effect during that small Qaws from pometric reflectors. This paragraph does not in period of time, any way alter the acceptance cnteria as speafled in paragraph 3.

1.85-4

l l

after July 1,1974, are listed in the following by number, Partial Penetration and Oblique effective dates,7 and title Nozzle Attachment Weld s, Sec-a tion 111 9

1141-1 9

08-31-61 Foreign Produced Steel 1475-1 03-02-74 Ferritic-Austenitic Stainless Steel 07-23-76 07-01-75 Seamless Tubes for Section Ill, 1332-7 01-08-79 Requirements for Steel Forgings, Class 2 and 3 Construction (N-1-7) 07-01-82 Section Ill, Division i 1498-1 11-06-72 S A-508-Class 2 and 3, Minimum 1334 3 04-29-71 Requirements for Corrosion-(N-22) 01-08-79 Tempenng Temperature, Section (N-2) 01-08-79 Resisting Steel Bars and Shapes, 07-01-82 111 01-01-81 Section 111 1515 03-09-72 Ultrasonic Examination of Ring 1345-2 03-09-72 Requirements for Nickel-Molybde-07-01-77 Forgings for Shell Sections, Section (N-6) 03-01-79 num-Chromium-Iron Alloys, See-111, Class ! Vessels tion 111 1521-1 04-29-74 Use of IICrades of SA-240, SA479, 1395-4 01-08-79 SA 508, Class 2 Forgmgs with 01-01-78 SA-336, and SA-358, Section !!!

(N-9-4) 07-01-82 Modified Manganese Content, Sec-tion III Code Case 1521-1 was acceptable subject to compliance 1412-4 11-03-75 Modified Iligh Yield Strength with the recommendations contained in Regulatory 01-01-77 Steel for Section 111, Division 1, Guides 1.31, " Control af Fernte Content in Stainless Class ! Vessels Steel Weld Etal," and 1.44, " Control of the Use of Sensitized Stainless Steel."

Code Case 14124 was acceptable subject to the following condition in addition to those conditions specified in 1528-3 11-03-75 liigh Strength StmlSA-508, Class 2 the Code Case: The information required to be devel-01-01-78 and SA-541, Class 2 Forgings, Sec-oped by Note 1 in the Code Case should be provided tion Ill, Class 1 Components in each referencing Safety Analysis Report. The material given in the Inquiry section of the Code Case should Code Case 1528-3 was acceptable subject to the follow-be S A-5 08, Class 4b, instead of SA-508, Class 4.

ing condition in addition to those conditions speci-fied in the Code Case: The information required to be 1414-5 08-29-77 liigh Yield Strength Cr-Mo Steel developed by Note 1 in the Code Ose stuuld be provided (N-l l-5) 08-29-80 for Section III, Division 1, Gass I in each referencing Safety Analysis Report.

Vessels 9

1529 06-29-72 Material for Instrument Line Fit-Code Case 1414-5 was acceptable subject to the following 07-01-73 tings, Section 111 condition in addition to those conditions specified m 1531 08-14-72 Electrical Penetrations, Special Al-the Code Case: The mformrun required to be 03-21-77 loys for ElectricalItnetration Seals, j

developed by Note 1 in the Code Case should be Section til provided in each referencing Safety Analysis Report.

1532 08-14-72 SationtII, Gass 3 Canponents Made 01-01-78 of 8 IVrcent and 9 Percent Nickel i

1423-2 03-09-72 Wrought Type 304 and 316 with Steel 07-01-77 Nitrogen Added, Sections I, 111, 1557-3 01-08-79 Steel Products Refined by Second-Vill, Division 1 and 2 (N-37-3) 07-01-82 ary Remelting, Section 111 and Vill, Division I and 2 Code Case 1423-2 was acceptable subject to compliance 1567 03-03-73 Testing Lots of Carbon and Low with the recommendations contained in Regulatory 01-01-78 Alloy Steel Covered Electrodes, Guides 1.31, " Control of Ferrite Content in Stainless Section 111 Steel Weld Metal," and 1.44, " Control of the Use of 1568 03-03-73 Testing lots of Flux Cored and Fab-Sensitized Stainless Steel."

01-01-78 ricated Orbm arul low Alloy Steel Welding Electrodes, Section Ill 1434-1 03-09-72 Postweld Ifeat Treatment of SA487 1578 06-25-73 SB-167 Nickel-Chromium-Iron (Al-01-01-78 Cass 8N Steel Castings, Section 111 (N-43) 01-08-79 loy 600) Pipe or Tube, Section 1456-2 06-25-73 Substitutim o2 Ultrasonic Examina-07-01-82 111 (N-15) 03-01-79 tion for Progressive Penetrant or 1583 06-25-73 Use of 8040 Carbon Steel Castings, Magnetic Particle Examinations of 03-21-77 Section Ill 9

1587 08-13 73 SA-508 Class 3 Forgings with 0.4/1.0 12-31-75 Ni for Section til and Vill, Division 2 Construction 7

~-

1590 08-13-73 Chemical Analysis Variations, Sec-Earlier date-date Code Case was ar owed by ASME Council; later date.-date Code Case was annulled. [here more than two dates 03-21-77 tion til Construction appear, the last date is the date that the Code Case was annulled.

The middle date (or dates) was the dans of reaffirmation of the D

Code Case.

8Code Cases 1401-1,1493-1, and 1599, which were hsted in 9

the original issue of this guide, were annulled by Council action Code Case was annulled on date as indicated, but the annul-prior to July 1,1974.

ment was first so indicated in Revisaon 12 of this guide.

1.85-5

l 1602-1 04-29-74 Use of SB-42 Alloy 122, SB-111 01-01-78 Radiography of Repair Welds for 12-31-74 Alloys 122, 715 and 706, SB-171 Vessels, Section 111, Class 1 4

Alloys 715 and 706 and SB-466 1698 06-30-75 Waiver of Ultrasonic Transfer Alloys 706 and 715, Section lit, (N-92)

I l-20-73 Method, Section 111, V, and Vill, Class 2 and 3 Components 07-13-81 Division i 1603 12-17-73 Toughness Tests When Cross-Section 07-01-74 Limits Orientation and location of Code Case 1698 was acceptable subject to the following Specimens conditions in addition to those specified in the Code 1605 11-05-73 Cr-Ni-M o-V Bolting Material for Case: The material from which the basic chbration block 11-20-78 Section lit, Class 1 Components is fahneated should be of the same product form, 03-17-80 alloy, and heat treatment as the material being 1608-1 12-17-73 Ur of ASME SB-265, SB-337, SB-338, examined. Alloys of equivalent P-number grouping 03-21-77 SB-M8, and SB-381, Grades I, 2, 3 may be used for the fabrication of calibration blocks and 7 Unalloyed Titanium and A5131 if adjustments to signal height can be made to compen-B-363 Titanium Welding Fittings, sate for sound neam attenuation difference between Section 111 Class 2 and 3 Cunponents the calibration block and the matenal under examina-1612 12 17-73 Use of Type 308 Stainless Steel tion by following the transfer method procedure of (N-56) 07-01-78 Rod and Bar for Section m, Class T-535.l(d), Article 5,Section V, ASME B&PV Code, 1,2,3, and CS Construction 1977 edition.

1613 12-17-73 Use of SA-372 Class IV Forgings, 01-01-78 Section 111 Construction 1713 08-11-75 Small Material items, Section 111, 1615 12-17-73 Use of A587-73, Section111, Class 3 12-31-75 Division 1, Class 1, 2, 3, CS and MC 01-01-78 Construction 1722-1 01-08-79 Vacuum, Carbon Deoxidized SA-1616' 12-17-73 Ultrasonic Examination of Seamless (N-107-1) 01-08-82 508 Forgings, Section 111, Divi-07-01-75 Austenitic Steel Pipe,Section III, sion 1 Class 1 Construction 1724 11-03-75 Deviatbn fnam the Specified Silicon 1622' 03-02-74 PWilT of Repair Welds m Carbon (N-108) 07-01-78 Ranges in ASME Material Specifica-01-01-76 Steel Castings, Section 111, Class 1, tions,Section III, Division 1, and 2, and 3 Vill, Division 1 and 2 1625 03-02-74 Repair of Section 111 Class 2 and 3 1728 11-03-75 Steel Structural Shapes and Small 12-31-74 Tanks 07-01-77 Material Products for Component 1634-2 08-13-76 Use of SB-359 for Section III, Support s,Section III, Division 1 (N-68) 07-01-78 Division 1, Class 3 Construction Construction 80 1637 04-29-74 Effective Date for Comphance with 1740 12-22-75 Weld Metal Test, SectionW, Class I, 01-01-75 NA-3700 of Section 111 07-01-76 2, 3, MC and CS 1645' 08-12-74 Use of DeLong Diagram for Calcu-1741-1 01-14-77 Interim Rules for the Required 01-01-76 lating the Delta Fernte Content of 01-01-78 Number of Impact Tests for Rolled Welds in Section W, Class 1, 2, and S hapes, Section Ill, Division 1,

CS Construction Subsection NF, Component Supports 1648 08-12-74 SA-537 Plates for Sectionm, Cass 1, 1742 03-01-76 Use of SB-75 Annealed Copper 07-01-76 2, 3, and MC Components 07-01-76 Alloy 122,Section III, Division 1, 1649' 08-12-74 Modified SA453CR 660 for Class 1, Class 2 Construction 01-01-76 2,3, and CS Construction 1743 03-01-76 Use of SB-98 Cb-sib Rod CDA651 1650 08-12-74 Use of SA414 Grade C for Class 2 07-01-76 Section Ill, Division 1, Class 2 12-31-74 and 3 Components, Section ill, Components Division 1 1746 03-01-76 Leak Testing of Seal Welds, Sec-1664 11-04-74 Use of Cr-Ni-Fe-Mo-CuCb Stabilized (N-123) 03-01-79 tion m, Division 1, Classi, 2, and 03-21-77 Alloy Cb-3 for Section ill Class 2 3 Construction and 3 Construction 1748 03-01-76 Low Carbon Austenitic Stainless 1666 11-04-74 Use of SB-12, Alloy 122 for Sec-(N-125) 07-01-78 Steel Pipe Welded With Filler Metal, 07-01-75 tion m, Class 2 and 3 Construction Sectionm, Division 1, Construction 1682-1 08-11-75 Alternate Rules for Material Manu-1760 04-26-76 Maximum Dimensions for isolated 12-31-75 facturers and Suppliers, Section 111, 01 01-78 Pores in Welds-Class 1 Components, Subarticle NA-3700 Section 111, Division i 1684' 03-03-75 A637 Grade 718 for Bolting Class 1 1766 04-26-76 Testing Requirements for Welding 1

01 01-76 and 2 Construction 07-01-77 Materials, Classl, 2,3, MC and CS 1690' 04-28-75 Stock Materials for Section m Con-Construction, Sectionill, Division 1 01-01-77 stmction, Section 111, Division 1 1767 04-26-76 Examination of Tubular Products 1691 04-28-75 Ultrasonic Examination in Lieu of 01-01-77 Without Filler Metal-Class 1 Con-struction, Section 111, Division I lo 1770 08-13-76 Testing of Electroslag Wire and Code Case 1637 has been accepted only on a case-by case basis.

(N-139) 01-01-79 Flux for Class 1, 2, 3, MC, and CS 1.85-6

Construction, Section 111, Divis;on 1 01-01 80 for Section Ill, Division I, Class 1, 1773 08-13-76 Use of Other Product Forms of 2 and 3 Construction 07-01-77 hiaterials for Valves, Section ill, N-190 08-29-77 Use of SA-455 for Class 3 Com-Division 1 07-01-78 ponents, Section Ill, Division i 1777 08-13-76 Use of SA-106, Grade C in Class N-204 03-20-78 Use of Niodified SA-508. Class 3, 07-01-77 htC Construction,Section III, Divi-01-01-81 and SA-541, Class 3 for Section W, sion 1 Division 1, Class 1, 2, and 3 Con-1781 09-10-76 Use of 51odified S A-48 7 Grade struction (N-147) 07-01-78 CA6Nht, Section 111, Division 1, N-206 03-20-78 Ur of ASBI B151-75 Copper-Nickel Class 1, 2, 3, htC or CS 03-16-81 Alloy 706 Rod and Bar for Section 1782 09-10-76 Use of Copper-Nickel Alloy %2 for 06-30-83 111, Division 1, Class 3 Construction (N-148) 08-30-79 Castings, Section 111, Division 1, N-223 11-30-78 Requirements for Stainless Steel 07-16-82 Class 3 Construction 11-20-81 Precipitation liardening, Section 06-30-83 111, Division 1, Class MC 1787 09-10-76 Depth of Weld Repairs for Forgings, N-225 11-20-73 Certification and Identification of 01-01-78 Section m, Division 1, Class 1,2,3, 01-01-81 Material for Component Supports, 51C and CS Construction Section Ill, Division 1 1794 01-14-77 Use of Seamless Al-Br, Alloy CDA N-227 07-09-79 Examination of Repair Welds, Sec-(N-157) 01 07-80 614 Pipe, Section 111, Division 1, 07-09-82 tion III, Class 2 and 3 Tanks 01-07-83 Class 3 N-246 07-09-79 Use of SB-169, A' oy CA 614, Sec-J 1795 01-14-77 Exammation of Weld Repairs in 09-07-82 tion 111, Division 1,

Class 3 (N-158) 07-01-78 Forgings, Section 111, Division 1, N-248 08-30-79 Alternative Reference Radiographs, Class 1, 2, 3, MC and CS 07-01-80 Section m, Division 1, Classes 1, 2, 1798 01-14-77 Use of AST51 A352-75, Grades 3, MC, and CS Construction 01-01-78 IEA and I.CC,Section III, Division N-25 9 01-07-80 Ni-Cu-Al Bolting hiatenal SB 164 1, Class 1, 2, and 3 02-14-S3 Modified, Section 111, Division 1, 1810 03-03-77 Testing Lots of Carbon Steel Solid, 01-01-84 Class 3 03-03-80 Bare Welding Electrode or Wire, N-267 01-07-80 Double Wall Radiography, Section Section 111, Division 1, Clns 1, 2, 07-01-81 III, Division 1 Class 1 and 2 3, MC, and CS N-277 03-17-80 Use of Type XM-19 Austemtic II 1819 03-23-77 Use of Type XM-19 for Cons &uc-09-17-80 Stainless Steel for Section III, Divi-01-01-78 tion, Section Ill, Division 1, Class sion 1,

Class MC Construction 1, 2, 3 N-295 01-15-81 NCA-1140, Materials, Section 111, 1819-112.13 03-23-77 Use of Type XM-19 for Construction, 12-11-81 Division 1 (N-176-1) 03-23-80 Section III, Division 1, Class 1, 2, 06-30-82 08-25-80 and 3 N-296 11-17-80 Welding Material, Section Ill, Divi-08-25-83 12-01-83 sion 1 Construction 1820 03-23-77 Alternative Ultrasonic Examination N-310-1 08-14-81 Certification of Bolting Materials, (N-177) 03-17-80 Technique, Section Ill, Division 1 07-01-82 Section III, Division 1, Class 1, 2, 02-14-83 3, MC and CS 01-01-84 N-178 05-25-77 Use of A5131 B271, CDA 954, Alloy Code Case N-310 I was acceptable subject to the follow-01-01-80 9C for Class 3 Construction, Sec-ing conditions in addition to those conditions speci-tion 111, Division I fied in the Code Case: Each applicant who applies N-180 07-11-77 Examination of Springs for Class I the Code Case should indicate in the referencing Safety 07-01-78 Component Standard Supports, Sec-Analysis Report (1) in what way the bolting does tion III, Division 1 not meet NCA-3800 (or NA-3700), (2) where the N-181 07-11-77 Steel Castings Refined by the Argon bolting will be used in the plant, and (3) how it will 07-11-80 Decarburization Process, Section m, be shown that the bolting material properties required Division 1, Construction by the Equipment Support Design Specification are N-183 07-11-77 Use of Modified $A-182 Grade F22 present in the actual bolting material.

N-317 07-13-81 ASTM A276 Bar Section III, II This Code Case was reaffirmed as Case 1819-l. See regu.

G7-01-8 2 Division I latory position 2 for the effective dates.

N-372 02-14-83 SB-163 Ni-Fe-C:-Mo-Cu Alloy 825 Case 1819 176) was annulled Dece,mber 31,1977. H tt was later rea firmed to continue providmg rules pertam,owever, 12-31-83 (UNS NOS825) Tubing, Section III*

mg to external pressure charts.

Division 1 I

l Code Case N-176 1 : The 3-23-80 is an annulment date.

This Case was allowed to expire on 3-23-80 because of an

3. Code Cases that were endorsed by the NRC in a prior ecNiIa$* Yang"es."It ', YerefoN,'*cNsidered be in eff,"$

version of this guide and were superseded by revised D

• ment date. The Case did not is during that lapse in time. The 8-2s-83 is the mandatory annul-Code Cases on or after July 1,1974, should be consid-appear in Revisions 18-21 of this guide because of the ASME administative error.

ered as not endorsed as of the date of the Council 1.85-7

action that approved the revised version of the Code 1484-2 11-04-74 SIkl63 Nickel-Chromium-Iron Tub-Cases. These Code Cases that are no longer endorsed are 08-13-76 ing (Alloy 600 and 690) at a Speci-listed in the following by number, effective dates,34 and fied Minimum Yield Strength of I

title.15 40.0 Ksi, Section ill, Class 1 16 1492 10-29-71 Post Weld Heat Treatment, Sec. ion 1, 1332-6 03-09-72 Requirements for Steel Forgmgs, 03-03-75 111 and Vill, Division I ant 01-08-79 Section 111 and Vill, Division 2 1557-2 12-17-73 Steel lYoducts Refined by Seusndary 1335 9 04-29-74 Requirements for Bolting Materials 01-08-79 Remelting 08-28-78 1618 03-02-74 Material for Core Support Struc-1337-9 04-29-74 Special Type 403 Modified Forg-03-03-75 tures - Section 111, Subsection NG 04-28-75 ings or Bars, Seuion 111 1337-10 04-28-75 Special Type 403 Modified Forg-Code Case 1618 was acceptable subject to the follow-05-15-78 ings or Bars, Section !!!

ing conditions in addition to those specified in the 1344-5 04-29-74 Nickel-Chromium, Age-Ilardenable Code Case:

(N-5) 01-08-79 Alloys (Alloy X750), Section 111 01-21-82

a. Welding of ags-hardenable alloy SA-453 Grade 660 12-13-82 and SA-637 Grade 688 should be performed when 1358-5 11-03-75 liigh Yield Strength Steel, Section the material is in the solution-treated condition.

(N-7) 01-08-79 111, Division 1, Class ! Vessels 01-21-82

b. Use of alloy ASBl A-564 Grade 631 is not acceptable 12-13-82 on a generic basis.

Code Case 1358-5 was acceptable subject to the following 1618-1 03-03-75 Mr.terial for Core Support Structures condition in addition to those conditions specified in 03-01-76 Sectinn !!!, Subsection NG the Code Case: The information required to be devel-oped by Note I in the Code Case should be provided Code Case 1618-1 was acceptable subject to the follow-in each referencing Safety Analysis Report.

ing condition in rJdition to those specified in the Code Case: Wel/.mg of age-hardenable alloy SA-453 1395-3 11-06-02 SA-508, Oass2 Forgings with Modi-Grade 660 and SA-637 Grade 688 should be per-01-Of -79 fied Manganese Content, Section111 formed when th material is in the solution-treated or Section VIII, Division 2 condition.

1407-2 06-2i-72 Tune of Examination for Classi, 2, 07-01-74 and 3,Section III Vessels 1618-2 03-01-76 Material for Core Sumart Structures-1414-3 11-03-75 liigh Yield Strength Cr-Mo Steel for (N-60) 01-08-79 Section III, Division 1, Subsection 03-01-76 Section 111, Division I, Class 1 01-21-82 NG Vessels 05-25-83 Code Case 1414-3 was acceptable subject to the followmg Code Case 1618-2 was acceptable subject to the follow-con.ition in addition to those conditions specified in ing condition in addition to those conditions speci-the Code Case: The information required to be devel-fied in the Code Case: Welding of age-hardenable alloy op d by Note 1 in the Code Case should be provided SA-453 Grade 660 and SA-637 Grade 688 should be in each referencing Safety Analysis Report.

performed when the material is in the solution-treated condition.

1414-4 03-01-76 High Yield Strength Cr-Mo Steel for 08-09-77 Section III, Division 1, Class 1 1626 03-02-74 Normalized and Tempered 1-1/4 Cr Vessels 01-08-79 low Alloy Steel Forgings, Section 1, Code Case 1414-4 was acceptable subject to the follow-Section 111, and Section VIII, Divi-ing condition in addition to those conditions speci-sion I and 2 fled in the Code Case: The information required to be 1634 07-01-74 Use of SB-359 for Section III, developed by Note 1 in the Code Case should be 08-12-74 Class 3 Construction provided in each referencing Safety Analysis Report.

1634-1 08-12-74 Use of SB-359 for Section 111, 08-13-76 Class 3 Construction 1484-1 04-29-74 SB-163 Nickel-Chromium-Iron Tub-1644 08-12-74 Additional Materials for Component i1-04-74 ing (Alloy 600) at a Specified Mini-04-28-75 Supports - Section 111, Subsection mum Yield Strength of 40.0 Ksi, NF, Class I, 2, 3, and MC Construc-Section lit, Class 1 tion Code Case 1644 was acceptable subject to the following 34 aYfa*te I$ ion f C"odNe#

approNd "N

condition in addition to those conditions specified in later wa y

Cou ncil, the Code Case: The maximum measured ultimate 15Code Cases 1334-2. 1337 7, 1344-3 1484,1521, and 1542 which were hsted in the original issue of this guide, were revisej 16Code Case 1492 is no longer listed by ASME as a Section III by the ASME prior to July 1,1974.

Code Case and is therefore deleted from the acceptable listing.

1.85-8

tensile strength of the component support material 1644-5 08-13-76 Adlitional Materials for Component should not exceed 170 Ksi.

03-03-77 Supports and Alternate Design Requirements for Bolted Joints, 9

1644-1 04-28-75 Additional hiaterials for Component Section III, Divisim I, Subsection NF, 06-30-75 Support - Section 111, Subsection Class I, 2, 3 and MC Construction NF, Class 1, 2, 3, and htC Con-struction Code Case 1644-5 was acceptable subject to the follow-I ing conditions in addition to those specified in the 1

Code Case 1644-1 was acceptable subject to the follow-Code Case: The maximum measured ultimate tensile ing condition in addition to those conditions speci-strength (UTS) of the component support material fled in the Code Case: The maximum measured should not exceed 170 Ksiin view of the susceptibility ultimate tensile strength of the component support of high-strength materials to brittleness and stress matenal should not exceed 170 Ksi corrosion cracking. Certain apphcations may exist where a UTS value of up to 190 Ksi could be 1644-2 06-30-75 Additional hfaterials for Component considered acceptable for a matenal and, under this 11-03-75 Supports - SectionIII, SubsectimNF, condition, the Design Specification should specify Class 1, 2, 3 and htC Construction impact testing for the material. For these cases, it should be demonstrated by the appbcant that (1) the l

Code Case 1644-2 was acceptable subject to the follow-impact test results for the material meet code require-l ing condition in addition to those conditions speci-ments and (2) the material is not subject to stress fied in the Code Case: The maximum measured ultimate corrosion cracking by virtue of the fact that (a) a tensile strength of the component support matenal corrosive environment is not present and (b) the should not exceed 170 Ksi.

component that contains the material has essentially no residual stresses or assembly stresses, and it does 1644-3 11-03-75 Additional hiaterials for Component not experience frequent sustained loads in service.

03-01-76 Supports - Section 111, Subsection

)

NF, Class 1,2,3 and hic Construc-1644-6 03-03-77 Additional Materials for Component j

tion 11-21-77 Supports and Alternate Design Requirements for Belted Joints, Code Case 1644-3 was acceptable subject to the follow-Section III, Divisim I, Subsection ing condition in addition to those conditions speci-NF, Class 1, 2, 3 : nd 'JC Construc-D ultimate tensile strength of the component support fied in the Code Case: The maximum measured tion material should not exceed 170 Ksi.

Code Case 16446 was acceptable subject to the following conditions in addition to those specified in the Code 1644-4 03-01-76 Additional hiaterials for Component Case: The maximum measured ultimate tensile strength 08-13-76 Supports and Alternate Design (UTS) of the component support material should not Requirements for Bolted J oints, exceed 170 Ksi in view of the susceptibility of high-Section III, Division 1, Subsection strength materials to brittleness and stress corrosion NF, Class 1, 2, 3 and MC Construc-cracking. Certain applications may exist where a UTS tion value of up to 190 Ksi could be considered accept-able for a material and, under this condition, the Design Specification shculd specify impact testing for Code Case 1644-4 was acceptable subject to the follow.

the material. For these cases, it should be demonstrated ing conditions in addition to those specified in the by the applicant that (1) the impact test results for Code Case: The maximum measured ultimate tensile the material meet code requirements and (2) the mate-strength (UTS) of the component support material rial is not subject to stress corrosion cracking by should not exceed 170 Ksiin view of the susceptibility virtue of the fact that (a) a corrosive environment is of high-strength materials to brittleness and stress not present and (b) the component that contains the corrosion cracking. Certain applications may exist where material has essentially no residual stresses or assembly a UTS value of up to 190 Ksi could be considered stresses, and it does not experience frequent sustained acceptable for a material and, under this condition, loads in service.

the Design Specification should specify impact testing for the material For these cases, it should be demon-1644-7 11-21-77 Additional Materials for Component strated by the applicant that (1) the impact test results (N-71-7) 05-15-78 Supports, Section 111, Disision 1, for the material meet code requircments and (2) the Subsection NF, Class 1, 2, 3 and materialis not subject to stress corrosion cracking by MC Component Supports virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the mate-Code Case 1644-7 was acceptable subject to the following D

rial has essentially no residual stresses or assembly conditions in addition to those specified in the Code stresses, and it does not experience frequent sustained Case: The maximum measured ultimate tensile strength loads in service.

(UTS) of the component support material should not 1.85-9

exceed 170 Ksi in view of the susceptibthty of lugh-Code Case N-71-10 was acceptable subject to the follow-strength materials to brittleness and stress corrosion ing conditions in addition to those conditions speci-cracking. Certain applications may exist where a UTS fied in the Code Case: The maximum measured value of up to 190 Ksi could be considered accept-ultimate tensile strength (UTS) of the component able for a material and, under this condition, the support material should not exceed 170 Ksi in view Design Specification should specify impact testing for of the susceptibility of high-strength materials to the material. For these cases,it should be demonstrated brittleness and stress corrosion cracking.

Certain by the applicant that (1) the impact test results for applications may exist where a UTS value of up to the material meet code requirements and (2) the 190 Ksi could be considered acceptable for a rnaterial material is not subject to stress corrosion cracking by and, under this condition, the Design Specification virtue of the fact that (a) a corrosive environment is should specify impact testing for the material For not present and (b) the component that contains the these cases, it should be demonstrated by the appli-material has essentially no residual stresses or assembly cant that (1) the impset test results for the material stresses, and it does not experience frequent sustained meet code requirements and (2) the material is not loads in service.

subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present 1644-8 05-15-78 Additional Materials for Component and (b) the component that contains the material has (N-71-8) 01-07-80 Supports, Section 111, Division 1, essentially no residual stresses or assembly stresses, and Subsection NF, Class 1, 2, 3 and it does not experience frequent sustained loads in MC Component Supports service. In the last sentence of paragraph 5.3, refer-ence should be made to paragraph 4.5.2.2, " Alternate Code Case 1644-8 was acceptable subject to the follow-Atmosphere Ex posure Time Periods Established by ing conditions in addition to those specified in the Test," of the AWS D.l.1 Code for the evidence Code Case: The maximum measured ultimate tensile presented to and accepted by the Authorized Inspec-strength (UTS) of the component support material tor concerning ex posure of electrodes for longer should not exceed 170 Ksiin view of the susceptibility periods of time.

of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist N-71-I l 06-17-82 Additional Materials for Component where a UTS value of up to 190 Ksi could be considered 02-14-83 Sumorts Fatricated by Welding, Sec-acceptable for a material and, under this condition, tion III, Division 1, Subsection NF, the Design Specification should specify impact testing Class 1, 2, 3, and MC Component for the material. For these cases, it should be demon-Supports strated by the applicant that (1) the impact test results for the material meet code requirements and Code Case N-71-1I was acceptable subject to the follow-(2) the material is not subject to stress corrosion ing conditions in addition to those conditions speci-crscking by virtue of the fact that (a) a corrosive ficd in the Code Case: The maximum measured ultimate environment is not present and (b) the component tensile strength (UTS) of the component support mate-that contains the material has essentially no residual rial should not exceed 170 Ksiin view of the susceptibil-stresses or assembly stresses, and it does not experi-ity of high-strength materials to brittleness and stress ence frequent sustained loads in service, corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered 1644-9 01-07-80 Additional Materials for Component acceptable for a material and, under this condition, (N-71-9) 05-11-81 Supports Fabricated by Welding, the Design Specification should specify impact testing Section 111, Division 1, Subsection for the material. For these cases, it should be demon-NF, Class 1, 2, 3, and MC Compo-strated by the applicant that (1) the impact test results nent Supports for the material meet code requirer,nents and (2) the material is not subject to stress corrosion cracking by Code Case 1644-9 was acceptable subject to the follow-virtue of the fact that (a) a corrosive environment is ing condition in addition to those conditions specified not present and (b) the component that contains the in the Code Case: In the last sentence of paragraph material has essentially no residual stresses or assembly 5.3, reference should be made to paragraph 4.5.2.2, stresses, and it does not experience frequent sustained

" Alternate Atmosphere Exposure Time Periods Estab-loads in service. In the last sentence of paragraph lished by Test," of the AWS D.I.1 Code for the evidence 5.3, reference should be made to paragraph 4.5.2.2, presented to and accepted by the Authorized Inspec-

" Alternate Atmosphere Exposure Time Periods Estab-tor concerning ex posure of electrodes for longer lished by Test," of the AWS D.l.1 Code for the periods of time.

evidence presented to and accepted by the Authorized Inspector concerning ex posure of electrodes for N-71-10 05-11-81 Additional Materials for Component longer periods of time.

06-17-82 Supports Fabricated by Welding, Section Ill, Division 1, Subsection N-71-12 02 14-83 Additional Materials fcr Component NF, Class I, 2, 3, and MC Compo-02-20-84 Sumorts Fabricated by Welding, Sec-nent Supports tim III, Division 1, Class 1,2,3, and MC 1.85-10

Code Case N-71-12 was acceptable subject to the Code Case 1759 was acceptaole subject to the follow-following condition in addition to those conditions ing condition in addition to those conditions speci-specified in the Code Case: The maximum measured fled in the Code Case: Appbcants using this Case 9

ultimate tensile strength (UTS) of the component should also use Code Case 1711 for the design of support material should not exceed 170 Ksi in view pressure rehef va!ves, of the susceptibility of high-strengtn materials to brittleness and stress corrosion cracking.

Certain N-188 08-29-77 Use of Welded Ni-Fe-Cr-Mo Cu applications may exist where a UTS value of up to 05-15-78 (Alloy 825) and Ni-Cr-Mo-Cb (Al-190 Ksi could be considered acceptable for a mate-loy 625) Tubing, Section 111, rial and, under this condition, the Design Specifica-Division 1, Class 3 tion should specify impact testing for the material N-207 03 20-78 Use of Modified SA-479 Type For these cases, it should be demonstrated by the 03 19-79 XM-19 for Section 111, Division 1, applicant that (1) the impact test results for the Class I, 2 or 3 Construction material meet code requirements and (2) the mate-N 224 11-20-78 Use of ASTM A500 Grade B and rial is not subject to stress corrosion cracking by 05-11-81 Amt A501 Structural Tubing for virtue of the fact that (a) a corrosive environment Welded Attachments for Section 111, is not present and (b) the component that contains Class 2 and 3 Construction the material has essentially no residual stresses or N-242 04-12-79 Materials Certification,Section III, assembly stresses, and it does not experience frequent 04-10-80 Division 1, Classes t,2,3, MC, and sustained loads in strvice, in the last sentence of para-CS Construction graph 5.3, reference should be made to paragraph 4.5.2.2,

" Alternate Atmosphere Exposure Time Periods Estab-Code Case N 242 was acceptable subject to the follow-l lished by Test," of the AWS D.I.1 Code for the evidence ing condition in addition to those conditions speci-presented to and accepted by the A"thorized Inspector fied in the Code Case: Applicants should identify the concerning exposure of electrodes for longer periods of components and supports requiring the use of para-time. The provisions of paragraph 4.3 are not acceptable graphs 1.0 through 4.0 of the Code Case in their on a generic basis. Paragraph 16.2.2 is not acceptable as Safety Analysis Reports.

written and should be replaced with the following: When not exempted by 16.2.1, above, the postweld heat treat.

N-216-1 09-07-82 S11169, Alloy C61400,Section III, ment shall be performed in accordance with NF-4622 05-25-83 Division 1, Class 3 except that for Amt A-710 Grade A materialit shall be N-249 01-07-80 Additional Materials for Compo-D 1000*F (540*C) and shall not exceed il50*F 05-11-81 nent Supports Fabricated Wit h-l

((at least 620*C) for Class I and Class 2 material and ll75'F out Welding, Section Ill, Divi-MO*C) for Class 3 material. The new holding time at sion 1, Subsection NF, Class 1, temperature for weld thickness (nominal) shall be 30 2, 3 and MC Cornponent Supports minutes for 1/2 inch or less, I hour 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 Code Case N-249 was acceptable subject to the follow-minutes for each additional inch over 5 iaches.

ing condition in addition to those conditions speci-fied in the Code Case: Footnote 2 of the Code Case should apply to all materials li:,ted in Tables 1, 2, 3, 1682 01-29-75 Alternate Rules for Material Manu.

4, and 5 of the Code Case and should be so indicated i

08-11-75 facturers and Suppliers,Section III, on line 5 of the " Reply."

l Subarticle NA-3700 1714 08-11-75 Postweld lleat Treatment of P-1 N-249-1 05-11-81 Additional Materials for Compo-4 07-11-77 Material,Section III, Class MC 06-17-82 nent Supports Fabricated Without l

4 1714-1 07-11-77 Postweld IIcat Treatment of P-1 Welding,Section III, Division 1, (N-102-1) 08-28-78 Material,Section III, Class MC Subsection NF, Class 1, 2, 3, and 1722 11-03-75 Vacuum, Carbm Deoxidized SA508 MC Component Supports 01-08-79 Forgings,Section III, Division 1, and VIII, Division I and 2 Code Case N-249L1 Was acceptable subject to the follow-1741 12-22-75 Interim Rules for the Required ing condition in addition ;o those conditions speci-01-14-77 Number of impact Tests for Rolled fied in the Code Case: Paragraph 7 of the " Reply" l

Shapes,Section III, Division 1,

should reference the requirements of NF-2600 instead Subsection NF, Canpanent Surports of NF-2800. This is a typographical error in that 1755 04-26-76 Alternative Rules for Examination NF-2800 does not exist.

01-14-77 of Welds in Piping, Class 1 and 2 Cmstructim, Sectim III, Divisim 1 1759 08-13-76 Material for Internal Pressure Re-N-249-2 06-17-82 Additional Materials for Subsection 05-15-78 taining Items fm Pre.,sure Relief 02-14-83 NF Class 1,2,3,and MC Component D

Valves,Satim III, Division 1, Class Supports Fabricated Without Weld-1, 2, and 3 ing, Section Ill, Division 1 1.85-11

N-249-3 02-14-83 Additicmal Materials fa Subsection has found the Code Cases listed in this regulatory guide 02-20-84 NF Class 1, 2,3, and MC Compo-under regulatory position C.1 acceptable for app opriate nent Supports Fabricated Without use. Other Code Cases may be considered for use in Welding, Section 111, Division I accordance with footnote 6 of the Codes and Standards rule, 50.55a of 10 CFR Part 50.

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

2. Components ordered to a specific version of a the Commission has not been granted, are not accept-Code Case need not be changed because a subsequent able for Class I components.

revision of the Code Case is listed as the approved version in this guide.

5. 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

3. Components ordered to a Code Case that was acceptable on a ger.eric basis.

previously approved for use need not be changed because the Code Case has been subsequently annulled.

D. IMPLEMENTATION The purpose of this section is to provide information

4. Code Cases on the approved list may be applied to applicants regarding the use of this regulatory guide.

to components that were in process of coratruction prior to the effective date of the Code Case within the

1. Except for those Code Cases that have been limits specified in the Code Case and applicable regula-annulled by action of the ASME Council, the NRC staff tions or recommended in other regulatory guides.

l l

4 1.85-12

l APPENDIX NUMERICAL LISTING OF CODE CASES

• 1335-10 (N-3-10) 1759-1 (N-131-1)

N-329 1337-11 (N-4-II) 1772 (N-140)

N-337 N-5-1 1793 (N-156)

N-342 N-7-1 N-188-1 N-348 1407-3 (N-10)

N-205 N-351 1474-1 (N-17)

N-207-1 N-352 1484-3 (N-20)

N 224-1 N-353 1527 (N-26)

N-242-2 N-367 1542-1 (N-33)

N-245 N-370 1571 (N-41)

N-246-2 N-371 N-60-1 l N-249-4 N-378 l 1626-1 (N-65-1)

N-265 N-379 I N-71-13 N-274 N-388 1714-2 (N-102-2)

N-294 N-398 1747 (N-124)

N-298 N-404 1754 (N-126)

N-299 1755-1 (N-127)

N-321 ode Case 1624 was inadvertently listed in the appendix of Regulatory Guide 1.85, 1.85-13

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