Regulatory Guide 1.84
| ML030730417 | |
| Person / Time | |
|---|---|
| Issue date: | 06/30/2003 |
| From: | Office of Nuclear Regulatory Research |
| To: | |
| References | |
| DG-1090 RG-1.084, Rev 32 | |
| Download: ML030730417 (55) | |
Regulatory guides are issued to describe and make available to the public such information as methods acceptable to the NRC staff for implementing specific parts of theNRC'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 applicationsfor permits and licenses. Regulatory guides are not substitutes for regulations, and compliance with them is not required. Methods and solutions different from those setout 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. Written comments may be submitted to the Rulesand Directives Branch, ADM, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001. Regulatory guides are issued in ten broad divisions: 1, Power Reactors; 2, Research and Test Reactors; 3, Fuels and Materials Facilities; 4, Environmental and Siting;5, Materials and Plant Protection; 6, Products; 7, Transportation; 8, Occupational Health; 9, Antitrust and Financial Review; and 10, General. Single copies of regulatory guides (which may be reproduced) may be obtained free of charge by writing the Distribution Services Section, U.S. Nuclear RegulatoryCommission, Washington, DC 20555-0001, or by fax to (301)415-2289, or by email to DISTRIBUTION@NRC.GOV. Electronic copies of this guide and other recently issuedguides are available at NRC's home page at <WWW.NRC.GOV> through the Electronic Reading Room, Accession Number ML030730417
.U.S. NUCLEAR REGULATORY COMMISSION Revision 32June 2003 REGULATORY GUIDEOFFICE OF NUCLEAR REGULATORY RESEARCHREGULATORY GUIDE 1.84(Draft was issued as DG-1090)DESIGN, FABRICATION, AND MATERIALS CODE CASEACCEPTABILITY, ASME SECTION III
A. INTRODUCTION
General Design Criterion (GDC) 1, "Quality Standards and Records," of Appendix A,"General Design Criteria for Nuclear Power Plants," to 10 CFR Part 50, "Domestic Licensing ofProduction and Utilization Facilities," requires, in part, that structures, systems, and componentsimportant to safety be designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety function to be performed. Where generally recognized codes and standards are used, Criterion 1 requires that they be identified 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 Appendix A requires, inpart, 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 Nuclear Power Plants and Fuel ProcessingPlants," to 10 CFR Part 50 requires, in part, that measures be established for the control ofspecial processing of materials and that proper testing be performed.Provisions of the American Society of Mechanical Engineers (ASME) Boiler and PressureVessel (BPV) Code have been used since 1971 as one part of the framework to establish the necessary design, fabrication, construction, testing, and performance requirements for structures, systems, and components important to safety. ASME standards committees develop, among other things, improved methods for the construction and inservice inspection (ISI) of ASME Class 1, 2, 3, MC (metal containment) and CC (concrete containment) nuclear power
1 Copies may be obtained from the American Society of Mechanical Engineers, Three Park Avenue, New York, NY 10016-5990. Phone (212)591-8500; fax (212)591-8501; www.asme.org.
2plant components. A broad spectrum of stakeholders participate in the ASME process,which helps to ensure that the various interests are considered.The regulation in 10 CFR 50.55a(c), "Reactor Coolant Pressure Boundary,"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, "Rules for Construction of Nuclear Power PlantComponents,"1 of the ASME BPV Code or equivalent quality standards. The ASMEpublishes a new edition of the BPV Code, which includesSection III, every 3 years, and new addenda every year. The latest editions and addenda of Section III that have been approved for use by the NRC are referenced in 10 CFR 50.55a(b). The ASME also publishes Code Cases quarterly. Code Cases provide alternatives developed and approved by ASME or explain the intent of existing Code requirements. This regulatory guide identifies the Code Cases that have been determined by the NRC to be acceptable alternatives to applicable parts of Section III. Section III Code Cases not yet endorsed by the NRC may be implemented through 10 CFR 50.55a(a)(3), which permits the use of alternatives to the Code requirements referenced in 10 CFR 50.55a provided that the proposed alternatives result in an acceptable level of quality and safety, and their use is authorized by the Director of the Office of Nuclear Reactor Regulation.The ASME Code is incorporated by reference into 10 CFR 50.55a. Code Casesapproved by the NRC provide an acceptable voluntary alternative to the mandatory ASME Code provisions. Therefore, 10 CFR 50.55a has been amended to incorporate this guide by reference and it states the requirements governing the use of Code Cases.
Because of the continuing change in the status of Code Cases, periodic updates to 10 CFR 50.55a and this guide are planned to accommodate new Code Cases and any revisions of existing Code Cases.This regulatory guide does not contain a new or amended information collectionrequirement subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.).
Existing requirements were approved by the Office of Management and Budget, and the approval number is 3150-0011. If a means used to impose an information collection does not display a currently valid OMB control number, the NRC may not conduct or sponsor, and a person is not required to respond to, the information collection.
B. DISCUSSION
Previously, Regulatory Guide 1.84 was titled
"Design and Fabrication Code CaseAcceptability, ASME Section III, Division 1," and it listed only the Section III Code Casesoriented to design and fabrication. Companion Regulatory Guide 1.85, "Materials CodeCase Acceptability, ASME Section III, Division 1," listed the Section III Code Casesoriented to materials and testing. Beginning with this revision, all Section III Code Cases that have been approved for use by the NRC are listed in this guide. Hence, the title of Regulatory Guide 1.84 has been changed to
"Design, Fabrication, and Materials CodeCase Acceptability, ASME Section III.
" It should be noted that with this Revision 32,Division 1 has been deleted from the title. Previous versions of the guide contained some Division 2 Code Cases, and this version contains some Division 3 Code Cases.
2 Except for Code Cases pertaining to high-temperature gas-cooled reactors;Section III, Division 2, requirementsnot endorsed by the NRC; liquid metal; and submerged spent fuel waste casks.
3Hence, the title change reflects the revised scope of Regulatory Guide 1.84. RegulatoryGuide 1.85 will no longer be updated, but it will be withdrawn in the future.For Revision 32 to Regulatory Guide 1.84, the NRC staff reviewed the Section IIICode Cases listed in Supplement 4 to the 1992 Edition through Supplement 11 to the
1998 Edition.
2 Appendix A to the guide lists the supplements reviewed, the edition, andthe Board on Nuclear Codes and Standards approval date. Appendix B is a numerical list of the Code Cases addressed in these supplements. The Code Cases are listed in five tables: Table 1, "Acceptable Section III Code Cases," contains the Code Cases thatare acceptable to the NRC for application in the design and construction of light-water- cooled nuclear power plants; Table 2, "Conditionally Acceptable Section III Code Cases," contains Code Cases that are acceptable provided that they are used with theidentified limitations or modifications, i.e., the Code Case is generally acceptable but the NRC has determined that the alternative requirements must be supplemented in order to provide an acceptable level of quality and safety; Table 3, "Annulled UnconditionallyApproved Section III Code Cases," contains the Code Cases that have been annulled bythe ASME; Table 4, "Annulled Conditionally Acceptable Section III Code Cases,"contains the Code Cases that the NRC determined to be acceptable provided that they are used with the identified limitations or modifications, but were subsequently annulled by the ASME; Table 5, "Section III Code Cases That Have Been Superseded byRevised Code Cases on or After July 1, 1974," lists Code Cases that have beensuperseded through revision. Code Cases that the NRC determined to be unacceptable are listed in a new regulatory guide, "ASME Code Cases Not Approved for Use
" (draftwas issued as DG-1112; final guide issued as Regulatory Guide 1.193). It should be noted that Tables 1-5 provide comprehensive lists of Section III Code Cases since many older Code Cases are still in use, i.e.,Section III, Division 1, applies only to new construction (the edition and addenda used in the construction of a plant were selected based upon the date of the construction permit and are not changed thereafter, except voluntarily by the licensee).Code Cases provide alternatives that were developed and approved by ASME toexisting Code requirements. The Code Cases listed as approved in Tables 1 and 2 of this guide have been incorporated by reference into 10 CFR 50.55a. The Code Cases may be used voluntarily by licensees as an alternative to compliance with ASME Code provisions that have been incorporated by reference into 10 CFR 50.55a.Requirements related to implementation of Code Cases are provided in10 CFR 50.55a(b). When a licensee initially applies a Code Case listed in Table 1 or 2, the licensee must implement the most recent version of that Code Case incorporated by reference in 10 CFR 50.55a.Code Cases may expire or be annulled because the provisions have beenincorporated into the Code, the application for which it was specifically developed no longer exists, or experience has shown that the design analysis or construction method is no longer adequate. After a Code Case is annulled and 10 CFR 50.55a and this guide are amended, licensees may not implement that Code Case for the first time. However, a licensee who implemented the Code Case prior to annulment may continue to use that Code Case until the licensee voluntarily updates itsSection III Code of recor
d. If a Code
4Case is incorporated by reference into 10 CFR 50.55a and later annulled by the ASMEbecause experience has shown that the design analysis or construction method is no longer adequate, the NRC will amend 10 CFR 50.55a and this guide to remove the approval of the annulled Code Case. Licensees should not begin to implement such annulled Code Cases in advance of the rulemaking. Notwithstanding these requirements, the Commission may impose new or revised Code requirements, including implementation schedules, that it determines are consistent with the backfit rule (i.e., 10 CFR 50.109).With regard to the use of any Code Case, it is the responsibility of the user tomake certain that the provisions of the Code Case do not conflict with regulatory requirements or licensee commitments.
C. REGULATORY POSITION
1. ACCEPTABLE CODE CASESThe Code Cases listed in Table 1 below are acceptable to the NRC forapplication in the design and construction of components and their supports for water- cooled nuclear power plants. The ASME issuesSection III Code Cases quarterly in supplements to a specific edition, i.e., a new edition of Section III is published every three years, and supplements are published quarterly. Hence, there are 12 supplements to each edition. Column 3 of Table 1 lists the supplement and edition in which each Code Case was published (e.g., 7/95E means Code Case Supplement 7 to the 1995 Edition).TABLE 1 - ACCEPTABLE SECTION III CODE CASESCODE CASENUMBERTABLE 1ACCEPTABLE SECTION III CODE CASESSUPPLEMENT/EDITIONN-4-11Special Type 403 Modified Forgings or Bars,Section III,Division 1, Class 1 and CS, 5/98EN-7-1High Yield Strength Steel,Section III, Division 1, Class 19/98EN-20-4SB-163, Cold Worked UNS N08800; and SB-163 UNSN06600, UNS N06690, and UNS N08800 to Supplementary Requirements S2 of SB-163,Section III, Division 1, Class 14/98EN-60-5Material for Core Support Structures,Section III, Division 19/95EN-122-2Procedure for Evaluation of the Design of Rectangular CrossSection Attachments on Class 1 Piping,Section III, Division 18/98EN-131-1(1759-1)Material for Internal Pressure Retaining Items for PressureRelief Valves,Section III, Division 1, Class 1, 2, and 39/98EN-133-3Use of SB-148 Alloys 952 and 954,Section III, Division 1, Class 38/98E
CODE CASENUMBERTABLE 1ACCEPTABLE SECTION III CODE CASESSUPPLEMENT/EDITION 5N-154-1Projection Resistance Welding of Valve Seats,Section III,Division 1, Classes 1, 2, and 39/98EN-160-1Finned Tubing for Construction,Section III, Division 18/98EN-171Postweld Heat Treatment of P-No. 1 Material,Section III, Division 25/92EN-192-2Use of Braided Flexible Connectors,Section III, Division 1, Class 2 and 35/98EN-205Use of Ductile Iron SA-395,Section III, Division 1, Class 35/98EN-208-2Fatigue Analysis for Precipitation Hardening Nickel AlloyBolting Material to Specification SA-637 N07718 for Class 1 Construction,Section III, Division 15/98EN-213Welded Radial Shear Bar Assemblies,Section III, Division 25/98EN-243Boundaries Within Castings Used for Core Support Structures,Section III, Division 1, Class CS9/95EN-304-4Use of 20Cr-25Ni-6Mo (Alloy UNS N08366) Plate, Sheet,Strip, and Welded Pipe, Class 2 and 3,Section III, Division 14/98EN-315Repair of Bellows,Section III, Division 19/98EN-318-5Procedure for Evaluation of the Design of Rectangular CrossSection Attachments on Class 2 or 3 Piping,Section III,
Division 19/95EN-319-3Alternate Procedure for Evaluation of Stresses in Butt WeldingElbows in Class 1 Piping,Section III, Division 18/98EN-329Examination of Bar Material,Section III, Division 1, Class 16/98EN-345-1Attachment of AMS 5382 Alloy 31 Seat Rings by FrictionWelding,Section III, Division 1, Classes 1, 2, and 310/98EN-351Use of Subsize Charpy V-Notch Specimens,Section III, Division 18/98EN-369Resistance Welding of Bellows,Section III, Division 110/98EN-373-1Alternative PWHT Time at Temperature for P-No. 5 Material,Section III, Division 1, Classes 1, 2, and 31/98EN-387Certification of Level III NDE Examiner,Section III, Division 21/98EN-391-2Procedure for Evaluation of the Design of Hollow CircularCross Section Welded Attachments on Class 1 Piping, SectionIII, Division 11/98E
CODE CASENUMBERTABLE 1ACCEPTABLE SECTION III CODE CASESSUPPLEMENT/EDITION 6N-392-3Procedure for Evaluation of the Design of Hollow CircularCross Section Welded Attachments on Classes 2 and 3 Piping,Section III, Division 112/95EN-394Restricting Lift to Achieve Reduced Relieving Capacities ofFull Lift, Nozzle Type, and Flat Seated Safety and Safety Relief Valves for Compressible Fluid Applications,Section III,
Division 1, Classes 2 and 312/95EN-395Laser Welding,Section III, Division 11/98EN-405-1Socket Welds,Section III, Division 112/95EN-438-1UNS N08367,Section III, Division 1, Class 2 and 3ConstructionReinstated5/95EN-439-1Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Forgings, Plate,Seamless and Welded Pipe, and Welded Tube, Class 2 and 3 Construction,Section III, Division 110/98EN-440-1Use of 20Cr-18Ni-6Mo (Alloy UNS J93254) Castings, Class 2and 3 Construction,Section III, Division 110/98EN-441-2Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2and 3 Construction,Section III, Division 110/98EN-452Specialized Subcontracted Welding Process (Electron BeamWelding),Section III, Division 110/98EN-453-3Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNSN08925) for Class 2 and 3 Construction,Section III, Division 11/98EN-454-1Nickel-Chromium-Molybdenum-Copper Stainless Steels (UNSN08925 and N08926) Wrought Fittings for Class 2 and 3 Construction,Section III, Division 110/98EN-455-1Nickel-Chromium-Molybdenum-Copper Stainless Steels (UNSN08925 and N08926) Forged Flanges and Fittings for Class 2 and 3,Section III, Division 110/98EN-464Laser Welding of Lap Joints,Section III, Division 1, Classes 2and 3 Construction10/98EN-469-1Martensitic Stainless Steel for Class 1, 2, and 3 Components,Section III, Division 110/98EN-493Alternative Radiographic Acceptance Criteria for Vessels Usedas Shipping Casks,Section III, Division 1, Class 16/98E
CODE CASENUMBERTABLE 1ACCEPTABLE SECTION III CODE CASESSUPPLEMENT/EDITION 7N-505Alternative Rules for the Examination of Butt Welds Used asClosure Welds for Electrical Penetration Assemblies in Containment Structures,Section III, Division 112/95EN-511Design Temperature for Atmospheric and 0-15 psi StorageTanks,Section III, Division 14/92EN-520-1Alternative Rules for Renewal of N-type Certificates for PlantsNot in Active Construction,Section III, Division 110/95EN-525Design Stress Intensities and Yield Strength Values for UNSN06690 With a Minimum Specified Yield Strength of 30 ksi, Class 1 Components,Section III, Division 16/98EN-539UNS N08367 in Class 2 and 3 Valves,Section III, Division 112/95EN-548Air Cooling of SA-182 Grades F304, F304L, F316, F316LForgings Instead of Liquid Quenching After Solution Heat Treatment, Class 1, 2, and 3,Section III, Division 14/95EN-550Alternative Rules for Examination of Welds in InstrumentTubing, Class 1 and 2,Section III, Division 11/98EN-558Stamping of Class 2 Vessels Fabricated to Subsection NB,Section III, Division 16/95EN-564-2UNS J93380, Alloy CD3MWCuN, Class 2 and 3 Construction,Section III, Division 18/98EN-570Alternative Rules for Linear Piping and Linear StandardSupports for Class 1, 2, 3, and MC,Section III, Division 16/95EN-572Use of SB-425 (UNS N08825) Bar and Rod for Class 1Construction,Section III, Division 17/95EN-579Use of Nonstandard Nuts, Class 1, 2, and 3, MC, CSComponents and Supports Construction,Section III, Division 110/95EN-580-1Use of Alloy 600 With Columbium Added,Section III, Division 11/98EN-594Repairs to P-4 and P-5A Materials for Pumps and ValvesWithout Postweld Heat Treatment,Section III, Division 112/95EN-596Use of Alternative Reference Specimens,Section III, Division 112/95EN-607Guidance on Implementation of NS Certificate of Accreditation,Section III, Division 15/98EN-608Applicable Code Edition and Addenda, NCA-1140(a)(2),Section III, Division 11/98E
CODE CASENUMBERTABLE 1ACCEPTABLE SECTION III CODE CASESSUPPLEMENT/EDITION 8N-610Alternative Reference Stress Intensity Factor (K
1R) Curve forClass Components,Section III, Division 12/98EN-611Use of Stress Limits as an Alternate to Pressure LimitsSubsection NC/ND-3500,Section III, Division 12/98EN-620Rules for Class 1 Type M Pumps,Section III, Division 14/98EN-621Ni-Cr-Mo Alloy (UNS N06022) Welded Construction to 800F,Section III, Division 14/98EN-625Ni-Cr-Mo Alloy (UNS N06059) Welded Construction to 800F,Section III, Division 15/98EN-631Use of Fracture Toughness Test Data to Establish ReferenceTemperature for Pressure Retaining Materials Other Than Bolting for Class 1 Vessels,Section III, Division 16/98EN-632Use of ASTM A 572, Grades 50 and 65 for StructuralAttachments to Class CC Containment Liners,Section III,
Division 27/98EN-635Use of 22Cr-5Ni-3Mo-N (Alloy UNS S31803) Forgings, Plate,Bar, Welded and Seamless Pipe, and/or Tube, Fittings, and Fusion Welded Pipe With Addition of Filler Metal, Classes 2 and 3,Section III, Division 16/98EN-636Use of 18Cr-13Ni-3Mo (Alloy UNS S31703), 19Cr-15Ni-4Mo(Alloy UNS S31725), and 18.5Cr-15.5Ni-4.5Mo-N (Alloy UNS
S31726) Forgings, Seamless Tubing, Plate, Welded Tubing, Welded and Seamless Pipe, Welded Pipe With Addition of Filler Metal and Fittings, Classes 2 and 3,Section III,
Division 16/98EN-637Use of 44Fe-25Ni-21Cr-Mo (Alloy UNS N08904) Plate, Bar,Fittings, Welded Pipe, and Welded Tube, Classes 2 and 3,Section III, Division 16/98EN-642Alternative Rules for Progressive Liquid PenetrantExamination of Groove Welds In P-No. 8 Materials 3/16 in. (5 mm) Thick and Less Made by Autogenous Machine or Automatic Welding,Section III, Division 19/98EN-644Weld Procedure Qualification for Procedures Exempt FromPWHT in Class 1, 2, and 3 Construction,Section III, Division 110/98EN-646Alternative Stress Intensification Factors for CircumferentialFillet Welded or Socket Welded Joints for Class 2 or 3 Piping,Section III, Division 111/98E
92. CONDITIONALLY ACCEPTABLE SECTION III CODE CASESThe Code Cases listed in Table 2 below are acceptable to the NRC for applicationin the design and construction of components and their supports for water-cooled nuclear power plants within the limitations indicated by the NRC. Unless otherwise stated, limitations indicated by the NRC are in addition to the conditions specified in the Code Case. The ASME issuesSection III Code Cases quarterly in supplements to a specific edition; i.e., a new edition of Section III is published every three years, and supplements are published quarterly. Hence, there are 12 supplements to each edition. Column 3 of the table lists the supplement and edition in which each Code Case was published (e.g.,
7/95E means Code Case Supplement 7 to the 1995 Edition).TABLE 2 - CONDITIONALLY ACCEPTABLE SECTION III CODE CASESCODE CASENUMBERTABLE 2, CONDITIONALLY ACCEPTABLE CODE CASESSUPPLEMENT/EDITIONTITLE / CONDITIONN-62-7Internal and External Valve Items,Section III, Division 1,Classes 1, 2, and 38/98EThe Code requires that Class 1 and Class 2 valvemanufacturers meet the provisions of NCA-4000, "QualityAssurance.
" Class 3 valve manufacturers must also meetthe provisions of NCA-4000 because all Code Class valve items are subject to the licensee
's 10 CFR 50, Appendix Bapproved QA program.N-71-17Additional Materials for Subsection NF, Class 1, 2, 3, and MCComponent Supports Fabricated by Welding,Section III,
Division 16/98E(1) The maximum measured ultimate tensile strength (UTS)of the component support material must not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking.
(2) Certain applications may exist where a UTS value of up to 190 Ksi could be considered acceptable for a material and, under this condition, the Design Specification must specify impact testing for the material. For these cases, it must be demonstrated by the applicant that: (a) the impact test results for the material meet Code requirements, (b) the material is not subject to stress corrosion cracking by virtue of the fact that: (i) a corrosive environment is not present and (ii) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
CODE CASENUMBERTABLE 2, CONDITIONALLY ACCEPTABLE CODE CASESSUPPLEMENT/EDITIONTITLE / CONDITION
10N-71-17(cont'd)Additional Materials for Subsection NF, Class 1, 2, 3, and MCComponent Supports Fabricated by Welding,Section III,
Division 16/98E(3) In the last sentence of paragraph 5.3, reference must bemade to paragraph 4.5.2.2, "Alternate AtmosphereExposure Time Periods Established by Test," of the AWSD.1.1 Code for the evidence presented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of time.
(4) Paragraph 16.2.2 is not acceptable as written and must be replaced with the following:
"When not exempted by16.2.1 above, the postweld heat treatment must be performed in accordance with NF-4622 except that ASTM
A-710 Grade A Material must be at least 1000F (540C)and must not exceed 1150F (620C) for Class 1 and Class2 material and 1175F (640C) for Class 3 material.(5) The new holding time at temperature for weld thickness (nominal) must 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 /> perinch 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 /> plus15 minutes for each additional inch over 5 inches.
(6) The fracture toughness requirements as listed in this Code Case apply only to piping supports and not to Class
1, Class 2, and Class 3 component supports.N-155-2Fiberglass Reinforced Thermosetting Resin Pipe,Section III, Division 18/98E(1) The design temperature for spray pond piping must be
100C (212F).(2) The allowable design stress must be the value obtained from the minimum hydrostatic design basis (HDB) in Table
3611-1 of Code Case N-155-2 (Procedure A or B) or the value determined as one-sixth of the stress obtained from a short-time burst test for the pipe being qualified, whichever is lower. The short-time burst strength must be determined by bursting the pipe (ASTM D-1599-74) using free-end mounting after it has been exposed to 10
5 pressure cyclesfrom atmospheric to design pressure.
(3) The value of
"K" in equation 9 of paragraph 3652 mustbe limited to 1.2 unless it can be demonstrated that with the use of a large value of K
1 the functional capability of thesystem will not be impaired during upset and emergency conditions.
(4) RTR piping must be uninsulated or uncovered and installed under conditions that make it readily accessible for inspection.
CODE CASENUMBERTABLE 2, CONDITIONALLY ACCEPTABLE CODE CASESSUPPLEMENT/EDITIONTITLE / CONDITION
11N-155-2(cont'd)Fiberglass Reinforced Thermosetting Resin Pipe,Section III, Division 18/98E(5) Preoperational and inservice inspections must be asfollows: (a) During the preoperational testing period, tests must be made to verify that the piping is free of vibration induced by weather conditions or water flow that could fatigue the piping prematurely. (b) Fiberglass-reinforced piping components must be inspected in accordance with ASME Code,Section XI, for Code Class 3 components. In addition, all pipe supports must be inspected. (c)
Inspection frequency for piping must be increased to once annually if an exterior weather-resistant coating is not provided.N-249-13Additional Materials for Subsection NF, Class 1, 2, 3, and MCComponent Supports Fabricated Without Welding,Section III,
Division 19/95E(1) The fracture toughness requirements apply only topiping supports and not to Class 1, Class 2, and Class 3 component supports.
(2) The following is to be added to paragraph (e) of the
Code Case:
(a) For these cases, it must be demonstrated by the Owner that: (i) the impact test results for the material meet Code requirements, and (ii) the material is not subject to stress corrosion cracking by virtue of the fact that: a corrosive environment is not present; 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-292Depositing Weld Metal Prior to Preparing Ends for Welding,Section III, Division 1, Class 1, 2, and 312/95EClass 3 piping that is longitudinally welded and that has aweld efficiency factor of 1.0 as selected from Table ND-3613.4-1, "Weld Joint Efficiency Factor," must receive a100 percent volumetric examination (RT or UT) of the deposited weld metal in accordance with the requirements of ND-5000, "Examination.
"
CODE CASENUMBERTABLE 2, CONDITIONALLY ACCEPTABLE CODE CASESSUPPLEMENT/EDITIONTITLE / CONDITION
12N-500-1Alternative Rules for Standard Supports for Class 1, 2, 3, andMC,Section III, Division 11/98E(1) The requirements of NF-3330, "High Cycle FatigueDesign for Class 1," must be met for Class 1 StandardSupports for fatigue consideration.
(2) The requirements of NF-3225, "Design of Bolting," andNF-3324.6, "Webs, Flanges, and Stiffeners," must be metfor bolted joints.N-626Use of Plastic Analysis for the Design of Type B ContainmentComponents for Nuclear Material Transportation Casks,Section III, Division 35/98E(1) For the acceptability of a design by analysis, ParagraphWB-3211, "Requirements for Acceptability," of Section III,Division 3, Subsection WB, "Class TP (Type B)Containment," Subparagraphs (a) through (d) must be applied.
(2) There is a typographical error in the title of Paragraph (a)(2) of the Code Case. Paragraph WB-3277 does not exist. Paragraph WB-3227, "Applications of InelasticAnalysis Procedures," of Section III, Division 3, SubsectionWB, "Class TP (Type B) Containment," is to be used.(3) The first paragraph of WB-3324, "Design for LocalPuncture Associated with a Hypothetical Accident Condition," of Section III, Division 3, Subsection WB, "ClassTP (Type B) Containment," must be applied. The secondparagraph of WB-3324 may be applied. In lieu of the third paragraph of WB-3324, the following may be applied:
"Inlieu of the application of the equation for outer shell thickness (treq) the response of the containment boundary topuncture test loadings may be evaluated using plastic analysis according to the rules in Appendix F, "Rules forEvaluation of Service Loadings with Level D Service Limits."3. ANNULLED UNCONDITIONALLY APPROVED SECTION III CODE CASESThe Code Cases listed in the table below were previously unconditionallyapproved by the NRC and have been annulled by the ASME. The ASME issuesSection III Code Cases quarterly in supplements to a specific edition, i.e., a new edition of Section III is published every three years, and supplements are published quarterly.
Hence, there are 12 supplements to each edition. Column 3 of the table lists the ASME
annulment date.
13TABLE 3 - ANNULLED UNCONDITIONALLY APPROVED SECTION III CODE CASESCODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATEN-1-7(1332-7)Requirements for Steel Forgings,Section III, Division 17/1/82N-2(1334-3)Requirements for Corrosion-Resisting Steel Bars and Shapes,Section III1/1/81N-3-10(1335-10)Requirements for Bolting Materials, Section III9/16/84N-5-1Nickel Chromium Age Hardenable Alloys (Alloy X750), SectionIII, Division 1, Classes 1, 2, 3, MC, and CS12/13/85N-6(1345-2)Requirements for Nickel-Molybdenum-Chromium-Iron Alloys,Section III3/1/79N-9-4(1395-4)SA-508, Class 2 Forgings with Modified Manganese Content,Section III7/1/82N-10(1407-3)Time of Examination for Classes, 1, 2, and 3,Section III
Vessels9/17/87N-15(1456-2)Substitution of Ultrasonic Examination for ProgressivePenetrant or Magnetic Particle Examination of Partial Penetration and Oblique Nozzle Attachment Welds, Section III3/1/79N-17(1474-1)Integrally Finned Tubes for Section III1/21/91N-22(1498-1)SA-508-Class 2 and 3, Minimum Tempering Temperature,Section III7/1/82N-24(1516-2)Welding of Seats or Minor Internal Permanent Attachments inValves for Section III Applications1/1/80N-26(1527)Integrally Finned Tubes, Section III1/21/91N-30-1(1539-1)Metal Bellows and Metal Diaphragm Stem Sealed Valves,Section III, Division 1, Classes 1, 2, and 31/1/81N-32-3(1541-3)Hydrostatic Testing of Embedded Class 2 and Class 3 Pipingfor Section III, Division 1 Construction7/1/79N-33(1542-1)Type 403 Forgings or Bars for Bolting Material, Section III1/21/85N-35-1(1552-1)Design by Analysis of Section III, Class 1 Valves7/1/79 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 14N-37-3
(1557-3)Steel Products Refined by Secondary Remelting, Section IIIand VIII, Division 1 and 27/1/82N-41(1571)Additional Material for SA-234 Carbon Steel Fittings, Section III1/21/85N-43(1578)SB-167 Nickel-Chromium-Iron (Alloy 600) Pipe or Tube,Section III7/1/82N-46(1588)Electro-Etching of Section III Code Symbols3/19/82N-47-33Class 1 Components in Elevated Temperature Service,Section III, Division 17/1/96N-48-2Fabrication and Installation of Elevated TemperatureComponents,Section III, Division 17/1/96N-49-4Examination of Elevated Temperature Nuclear Components,Section III, Class 17/1/96N-50-1Testing of Elevated Temperature Components,Section III,Division 1, Class 17/1/96N-51-2Protection Against Overpressure of Elevated TemperatureComponents,Section III, Division 1, Class 17/1/96N-55-1(1609)Inertia and Continuous Drive Friction Welding,Section III, Division 14/5/87N-56(1612)Use of Type 308 Stainless Steel Rod and Bar for Section III,Class 1, 2, 3, and CS Construction7/1/78N-61(1620)Stress Category for Partial Penetration Welded Penetrations,Section III, Class Construction1/8/82N-65-1(1626-1)Normalized and Tempered 1-1/4 Cr Low Alloy Steel Forgings,Section I and III1/21/85N-66-1(1630-1)External Pressure Charts for High Yield Strength CarbonSteels and Low alloy Steels, (Yield Strength above 38 Ksi to 60
Ksi Inclusive) For Section III, Class 1, 2, 3, and MC12/5/87N-68(1634-2)Use of SB-359 for Section III, Division, 1, Class 3 Construction7/1/78N-77(1660)Overpressure Protection Under Emergency OperatingConditions for Section III, Class 17/1/77N-81(1665)Pressure-Temperature Ratings for Class 1 Valves Made from 5Cr-1/2 Mo, Section III7/1/78 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 15N-82
(1677)Clarification of Flange Design Loads,Section III, Class 1, 2, and 33/1/79N-84(1681-1)Organizations Accepting Overall Responsibility for Section IIIConstruction3/1/79N-90(1692)Rules for Design of Welded Class 1 Pumps7/1/78N-94(1700)Determination of Capacities of Liquid Relief Valves,Section III,Division 1, Class 1, 2, and 33/19/82N-95-2(1701-2)Determination of Capacities of Vacuum Relief Valves, SectionIII, Division 1, Classes 2, 3, and MC and Division 2 Concrete Containments7/9/82N-96-1(1702-1)Flanged Valves Larger than 24 inches for Section III, Division1, Class 1, 2, and 3 Construction1/1/80N-101(1712)Nameplates and Stamping for Section III, Division 1, Class 1,2, 3 and MC Construction as Referenced in NA-83003/1/79N-102-2Postweld Heat Treatment of P-1 Material,Section III, Class MC6/30/84N-107-1(1722-1)Vacuum, Carbon Deoxidized SA-508 Forgings,Section III, Division 11/8/82N-108(1724)Deviation from the Specified Silicon Ranges in ASME MaterialSpecifications,Section III, Division 1, and VIII, Division 1 and 27/1/78N-109(1726)Refinement of Low Alloy Steel Heat Affected Zone UnderOverlay Cladding,Section III, Division 1, Class 1 Components3/1/79N-111(1729)Minimum Edge Distance-Bolting for Section III, Division 1,Class 1, 2, and 3 and MC Construction of Component Supports3/1/79N-114(1732)Hardsurfaced Valves with Inlet Connections less than 2-in.Nominal Pipe Size for Section III, Division 1, Class 1 and 2 Construction1/1/79N-115(1733)Evaluation of Safe Shut Down Earthquake Loadings forSection III, Division 1, Class MC Containment Vessels1/1/78N-119-4(1739-4)
N-119-6Pump Internal Items,Section III, Division 1, Class 1, 2, and 312/1/833/14/94N-121(1744)Carbon Steel Pipe Flanges Larger than 24 in.,Section III, Division 1, Class 2 and 3 Construction3/1/79 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 16N-123
(1746)Leak Testing of Seal Welds,Section III, Division 1, Class 1, 2,and 3 Construction3/1/79N-124(1747)Requirements for Martensitic Stainless Forgings with 13%Chromium and 4% Nickel,Section III, Division 17/13/87N-125(1748)Low Carbon Austenitic Stainless Steel Pipe Welded With FillerMetal,Section III, Division 1, Construction7/1/78N-126(1754)Hard Surfacing by the Spray-Fuse Method,Section III, Class 1,2, and 3 Construction7/1/88N-127(1755-1)Alternative Rules for Examination of Welds in Piping, SectionIII, Class 1 and 2 Construction2/20/92N-139Testing of Electroslag Wire and Flux for Class 1, 2, 3, MC, andCS Construction,Section III, Division 11/1/79N-140(1772)Use of SA-453 Bolts in Service Below 800F Without StressRupture Tests,Section III, Division 112/31/85N-142-1(1774-1)Minimum Wall Thickness for Class 2 and 3 Valves,Section III, Division 11/1/80N-147(1781)Use of Modified SA-487 Grade CA6NM,Section III, Division 1,Class 1, 2, 3, MC or CS7/1/78N-148(1782)Use of Copper-Nickel Alloy 962 for Castings,Section III,Division 1, Class 3 Construction6/30/83N-154(1791)Projection Resistance Welding of Valve Seats,Section III,Division 1, Class 1, 2and 3 Valves1/14/80N-156(1793)Structural Steel Rolled Shapes,Section III, Division I, Class 2,3, and MC2/14/86N-157(1794)Use of Seamless Al-Br, Alloy CDA 614 Pipe,Section III,Division 1, Class 31/7/83N-158(1795)Examination of Weld Repairs in Forgings,Section III, Division1, Class 1, 2, 3, MC and CS7/1/78N-159(1796)Body Neck Thickness Determination for Valves with InletConnections 4-Inch Nominal Pipe Size and Smaller,Section III,
Division 1, Class 1, 2, and 37/1/78N-174(1812)Size of Fillet Welds for Socket Welding of Piping,Section III, Division 11/1/81N-176-1(1819-1)Use of Type XM-19 for Construction,Section III, Division 1,Class 1, 2, and 38/25/83 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 17N-177
(1820)Alternative Ultrasonic Examination Technique,Section III, Division 11/1/84N-178Use of ASTM B271, CDA 954, Alloy 9C for Class 3Construction,Section III, Division 11/1/80N-179Openings in Valves for Section III, Division 1, Class 1, 2 and 3Construction7/11/80N-180Examination of Springs for Class 1 Component StandardsSupports,Section III, Division 17/1/78N-181Steel Castings Refined by the Argon Decarburization Process,Section III, Division 1, Construction7/11/80N-182Alternate Rules for Procedure Qualification Base MaterialOrientation,Section III, Division 1, Class 2 and 3 Construction7/1/81N-183Use of Modified SA-182 Grade F22 for Section III, Division 1,Class 1, 2 and 3 Construction1/1/80N-184Roll Threading of SA-453 Bolting for Section III,Division 1, Class 1, 2, 3 or CS Construction7/1/79N-188-1Use of Welded Ni-Fe-Cr-Mo-Cu (Alloy 825) and Ni-Cr-Mo-Cb(Alloy 625) Tubing,Section III, Division 1, Class 2 and 38/14/96N-189Primary Membrane Plus Primary Bending Stress IntensityLimits for Other Than Solid Rectangular Sections for Section III, Division 1, Class MC Construction7/1/79N-190Use of SA-455 for Class 3 Components,Section III, Division 17/1/78N-193Use of SB-61 and SB-62 Bronze for Section III,Division 1, Class 3 Flange and Socket Weld End Valves11/21/80N-196-1Exemption from the Shakedown Requirements When PlasticAnalysis Is Performed for Section III, Division 1, Class 1 and CS Construction7/1/92N-204Use of Modified SA-508, Class 3, and SA-541, Class 3 forSection III, Division 1, Class 1, 2, and 3 Components1/1/81N-206Use of ASTM B151-75 Copper-Nickel Alloy 706 Rod and Barfor Section III, Division 1, Class 3 Construction6/30/83N-207-1Use of Modified SA-479 Type XM-19 for Section III, Division 1,Class 1, 2, 3, or CS Construction1/21/85N-212(1693)Welding Procedure Qualification of Dissimilar Metal WeldsWhen "Buttering" with Alloy Weld Metal and Heat Treatment May Be Involved,Section III, Division 1, and Section IX.1/1/81 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 18N-214-2Use of SA-351 Grade CN7M, for Valves,Section III, Division 112/31/83N-215Integrally Finned Titanium Tubes,Section III, Division 1, Class3 Construction5/15/81N-217-1Postweld Heat Treatment of Weld Deposit Cladding onClasses 1, 2, 3, MC, and CS Items,Section III,
Division 12/23/87N-220Code Effective Date for Component Supports,Section III, Division 17/13/81N-223Requirements for Stainless Steel Precipitation Hardening,Section III, Division 1, Class MC11/20/81N-224-1Use of ASTM A500 Grade B and ASTM A501 StructuralTubing for Welded Attachments for Section III, Class 2, 3, and
MC4/5/90N-225Certification and Identification of Material for ComponentSupports,Section III, Division 11/1/81N-226Temporary Attachment of Thermocouples,Section III, Division1, Class 1, 2 and 3 Component Supports1/1/80N-227Examination of Repair Welds,Section III, Class 2 and 3 Tanks7/9/82N-228Alternate Rules for Sequence of Completion of Code DataReport Forms and Stamping for Section III,
Class 1, 2, 3 and MC Construction3/19/82N-229Alternate Rules for Fabrication Welding SB-148 Alloy CDA 954for Section III, Division 1, Class 3 Construction1/21/88N-231Alternate Methods for Leak Detection in the Attachment Weldsof Leak Chase Channels,Section III, Division 2, Class CC7/1/92N-233Alternate Rules for PWHT of P-No. 6, Group 4 Material forSection III, Division 1, Class 3 Construction9/17/87N-237-2Hydrostatic Testing of Internal Piping,Section III, Division 1, Classes 2 and 37/1/88N-240Hydrostatic Testing of Open Ended Piping,Section III, Division 17/1/97N-241Hydrostatic Testing of Piping,Section III, Division 17/1/97N-245Use of ASTM B61-76 and B62-76 Copper Alloy Castings forSection III, Division 1, Class 3 Construction7/17/85 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 19N-246-2SB-169 Alloy C61400,Section III, Division 1, Class 3Construction 7/27/95N-247Certified Design Report Summary for Component StandardSupports,Section III, Division 1, Class 1, 2, 3 and MC4/30/93N-248Alternative Reference Radiographs,Section III, Division 1,Classes 1, 2, 3, MC, and CS Construction7/1/80N-259Ni-Cu-Al Bolting Material SB 164 Modified,Section III,Division 1, Class 31/1/84N-261Weld Procedure Qualification for Materials with ImpactRequirements for Section III, Division 1, Class 3 Construction12/13/82N-262Electric Resistance Spot Welding for Structural Use inComponent Supports,Section III, Division 17/27/91N-265-1Modified SA-487 Castings,Section III, Division 1, Class 18/14/97N-267Double-Wall Radiography,Section III, Division 1, Class 1 and 27/1/81N-271Simplified Method for Analyzing Flat Face Flanges with Metalto Metal Contact Outside the Bolt Circle for Section III, Class 2,
3, and MC Construction2/14/86N-272Compiling Data Report Forms,Section III, Division 11/1/82N-276Welding of SA-358 Pipe,Section III, Division 12/14/86N-277Use of Type XM-19 Austenitic Stainless Steel for Section III,Division 1, Class MC Construction9/17/80N-280Alternate Rules for Examination of Welds in Section III, Class 3Storage Tanks7/1/81N-281Welding Operator Performance Qualification,Section III, Division 17/1/81N-282Nameplates for Valves,Section III, Division 1, Class 1, 2, and3 Construction7/30/89N-294SB-148 Alloys 952 and 954, and SB-62 Alloy 836 Fittings,Section III, Division 1, Class 27/27/95N-295NCA-1140, Materials,Section III, Division 16/30/82N-296Welding Material,Section III, Division 1 Construction12/1/83N-298Examination of Component Supports,Section III, Division 1,Class 1, 2, 3, and MC12/1/83 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 20N-299-1Use of Nickel-Chromium-Molybdenum-Columbium Alloy 625Forgings,Section III, Division 1, Class 2 and Class 3 Components2/23/87N-300Pressure-Temperature Ratings, Hydrostatic Tests, andMinimum Wall Thickness of Valves,Section III,
Division 1, Class 112/1/83N-302Tack Welding,Section III, Division 1, Construction11/28/83N-309-1Identification of Materials for Component Supports,Section III, Division 17/1/95N-313Alternative Rules for Half-Coupling Branch Connections,Section III, Division 1, Class 27/1/96N-316Alternative Rules for Fillet Weld Dimensions for SocketWelding Fittings,Section III, Division 1, Class 1, 2, and 38/14/93N-317ASTM A276 Bar,Section III, Division7/1/82N-320Alternate PWHT for SA-487, Grade CA6NM,Section III, Division 112/31/83N-321-1Use of Modified SA-249, Grade TP 304,Section III, Division 1, Class 112/5/88N-324Qualification of Authorized Nuclear Inspector Supervisor(Concrete) and Authorized Nuclear Inspector (Concrete),
Section III, Division 2, Classes CB and CC7/27/95N-328Thermit Brazing or Welding of Nonstructural Attachments,Section III, Division 19/17/87N-336Examination of Welds Inaccessible During Pressure Test,Section III, Division 1, Class MC6/30/83N-337-1Use of ASTM B 525-70 Grade II, Type II, Sintered AusteniticStainless Steel for Classes 2, 3, and MC Component Standard Supports,Section III, Division 13/14/94N-339Examination of Ends of Fillet Welds,Section III,Division 1, Classes 1, 2, and MC9/17/84N-341Certification of Level III NDE Examiner,Section III, Division 1 and 27/1/88N-342Use of SA-249 and SA-312 Type 317 Stainless Steel, SectionIII, Division 1, Classes 1, 2, and 34/2/85N-346Explosive Welding,Section III, Division 16/30/86 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 21N-347Continuous Electric Resistance Seam Welding ofP-No. 8 Materials for Component Supports,Section III,
Division 112/13/85N-349Pressure Testing Piping Systems,Section III, Division 1, Classes 2 and 312/31/85N-352-1Use of SA-638 Grade 660 Forgings and Bars Below 700FWithout Stress Rupture Tests,Section III, Division 16/30/86N-353Marking of SA-354 Grade BD Bolting,Section III, Division 19/5/88N-354-1Subcontracted Service,Section III, Division 28/14/94N-355Calibration Block for Angle Beam Ultrasonic Examination ofLarge Fittings in Accordance with Appendix III-34108/9/96N-357Certification of Material for Component Supports,Section III,Division 1, Subsection NF7/1/88N-359Weld Connection for Coaxial Cylinders,Section III, Division 1, Class 112/31/84N-362-2Pressure Testing of Containment Items,Section III, Division 1,Classes 1, 2, and MC7/1/88N-367SA-372 Type V, Grade 1, Class B,Section III, Division 12/19/89N-368Pressure Testing of Pump Discharge Piping,Section III,Division 1, Classes 2 and 37/1/95N-370-2Modified SA-705 Type XM-13 Forgings,Section III, Division 18/14/97N-371-112Cr-1W-1Mo-1/4V Martensitic Stainless Steel Valve Internals,Section III, Division 17/18/88N-372SB-163 Ni-Fe-Cr-Mo-Cu Alloy 825 (UNS N08825) Tubing,Section III, Division 112/31/83N-376Pressure Testing of Embedded Class 2 and 3 Piping, SectionIII, Division 17/30/86N-377Effective Throat Thickness of Partial Penetration GrooveWelds,Section III, Division 1, Classes 1, 2, and 312/31/83N-378Examination of Piping Support Material,Section III, Division 1, Class 110/28/86N-379-1 Bimetallic Tubing,Section III, Division 1, Class 17/18/91 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 22N-384-1Use of Prepackaged General Purpose Cement Grouts, EpoxyGrouts, and Epoxy Bonding,Section III, Division 2, Class CC7/27/91N-388Component Support Bolting,Section III, Division 1, Classes 2,3, and MC2/23/87N-393Repair Welding Structural Steel Bolted Shapes and Plates forComponent Supports,Section III, Division 17/27/95N-403Reassembly of Subsection NF Component and PipingSupports,Section III, Division 17/1/95N-410Certified Relieving Capacities of Pressure Relief Valves HavingSet Pressure of 3 psig up to but Not including 15 psig Installed for Overpressure Protection of Compressible Fluid Systems,Section III, Division 1, Classes 2 and 33/14/00N-412Alternative Rules for Witnessing the Piping System PressureTests of Classes 1, 2, and 3 Piping Systems,Section III,
Division 14/15/91N-413Minimum Size of Fillet Welds for Subsection NF Linear TypeSupports,Section III, Division 12/14/88N-414Tack Welds for Class 1, 2, 3 and MC Components and PipingSupports,Section III, Division 12/20/92N-418-1Use of Seamless Ni-Fe-Cr-Mo-Cu Low Carbon (UNS N08028and UNS N08904) Tubing,Section III, Division 1, Classes 2
and 37/27/95N-420Linear Energy Absorbing Supports for Subsection NF, Classes1, 2, and 3 Construction1/1/99N-421Brazing Using a Radiant Energy Source,Section III, Division 16/30/86N-430Alternative Requirements for Welding Workmanship and VisualAcceptance Criteria for Class 1, 2, 3, and MC Linear-Type and Standard Supports7/1/93N-433Non-Threaded Fasteners for Section III, Division 1, Class 1, 2,and 3 Components and Piping Supports12/16/95N-438-4UNS N08367 Material,Section III, Division 1, Class 2 and 3Construction7/1/98N-4421977 Addendum to ANSI/ASME PTC 25.3-1976, Safety andSafety Relief Valves, Class 1, 2, 3, and MC,
Section III, Division 13/8/92 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 23N-443-2High Yield Strength Cr-Mo Steel, Class 1 Components, SectionIII, Division 11/1/01N-451Alternative Rules for Analysis of Piping Under SeismicLoading, Class 1,Section III, Division 18/14/96N-459SA-508 Basic Oxygen-Ladle Furnace Process for CodeConstruction,Section III, Division 13/14/94N-462Alternative Rules for Analysis of Piping Products UnderSeismic Loading, Class 2 and 3 Piping Systems,Section III, Division 15/24/96N-466-1Modified 9Cr-1Mo Material,Section III, Division 1, Classes 1,2, and 38/14/97N-468Alternative Method of Earthquake Description for Class 2 and3 Piping of Low Seismicity Sites,Section III, Division 111/92N-470Class MC Material Requirements [NE-2121(c)],Section III, Division 13/8/92N-474-2Design Stress Intensities and Yield Strength Values for UNSN06690 With a Minimum Specified Yield Strength of 35 ksi, Class 1 Components,Section III, Division 11/1/00N-475Materials in Inventory,Section III, Division 112/11/92N-476Class 1, 2, 3, and MC Linear Component Supports - DesignCriteria for Single Angle Members,Section III, Division 1, Subsection NF7/1/96N-482Direct Quenched Stainless Bar, ASTM A 479-88b,Section III, Division 13/5/93N-484-1Real Time Radioscopic Examination of Welds,Section III, Division 112/16/94N-492-1Grade 9 Titanium Alloy Tubing,Section III, Division 1, Class 1,2, and 31/1/00N-497-1Use of Fe-Ni-Cr-Mo-N (C-N-3MN) Cast Materials,Section III, Division 1, Class 2 and 3 Construction1/1/99N-501Alternative Rules for NCA-3800, 1990 Addenda,Section III, Division 112/31/93N-502SA-268, Grade 26-3-3 (UNS S44660),Section III, Classes 2 and 31/1/00N-507Identification of Welders,Section III, Division 27/27/95 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 24N-540Guidance on Implementation of NCA-3800 Revisions in 1994Addenda,Section III, Division 16/30/98N-549Stamping and Flow Certification of Rupture Disk Devices,Classes 2 and 3,Section III, Division 13/19/99N-551Alternative Methods of Analysis, NC/ND-3673.1, Class 2 and 3Applications,Section III, Division 18/14/97N-559SA-203, Grade E (Plate) and SA-350, Grade LF3 (Forging),3.5% Ni Nominal Composition Used in Class 1 Construction,Section III, Division 15/24/991141-7Foreign Produced Steel7/23/761434-1Postweld Heat Treatment of SA-487 Class 8N Steel Castings,Section III1/1/781461-1Electron Beam Welding,Section I, III, and VIII, Division 1 and 22/16/771470-2External Pressure Charts for High-Strength Carbon Steels andfor Low-Alloy Steels,Section VIII, Division 1 and 2, and Section III11/4/741471-1Vacuum Electron Beam Welding of Tube Sheet Joints,Section III1/1/781475-1Ferritic-Austenitic Stainless Steel Seamless Tubes for SectionIII, Class 2 and 3 Construction7/1/751477-1Use of 1970 Addenda of ANSI B31.7, Section III1/1/781494-1Weld Procedure Qualification Test, Section III1/1/78 1506Stress Intensification Factors,Section III, Class 2 and 3 Piping1/1/78 1515Ultrasonic Examination of Ring Forgings for Shell Sections,Section III, Class 1 Vessels7/1/77 1529Materials for Instrument Line Fittings, Section III7/1/73 1531Electrical Penetrations, Special Alloys for ElectricalPenetration Seals, Section III3/21/77 1532Section III, Class 3 Components Made of 8 Percent and 9Percent Nickel Steel1/1/78 1533Pressure Temperature Ratings of SA-351 Grades CF8A, CF3,and CF3M, Section III7/1/751535-2Hydrostatic Testing of Section III, Class 1 Valves3/21/77 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 25 1536Closing Seam for Electrical Penetrations for Section III, Class2, 3, and MC7/1/771553-1Upset Heading and Roll Threading of SA-453 for Bolting inSection III1/1/761555-1Certification of Safety Relief Valves,Section III, Division 11/1/78 1567Testing Lots of Carbon and Low Alloy Steel CoveredElectrodes, Section III1/1/78 1568Testing Lots of Flux Cored and Fabricated Carbon and LowAlloy Steel Welded Electrodes, Section III1/1/78 1573Vacuum Relief Valves, Section III1/1/78 1574Hydrostatic Test Pressure for Safety Relief Valves, Section III12/31/741580-1Buttwelded Alignment Tolerance and Acceptable Slopes forConcentric Centerlines for Section III, Class 1, 2, and 3 Construction1/1/78 1581Power-Operated Pressure Relief Valves, Section III3/1/79 1583Use of 80-40 Carbon Steel Castings, Section III3/21/77 1587SA-508 Class 3 Forgings with 0.4/1.0 Ni for Section III and VIII,Division 2 Construction12/31/75 1590Chemical Analysis Variations,Section III Construction3/21/77 1601Limits of Reinforcement for Two-Thirds Area,Section III, Class 17/1/741602-1Use of SB-42 Alloy 122, SB-111 Alloys 122, 715 and 706 andSB-466 Alloys 706 and 715,Section III, Class 2 and 3 Components12/31/74 1603Toughness Tests When Cross-Section Limits Orientation andLocation of Specimens7/1/74 1605Cr-Ni-Mo-V Bolting Material for Section III, Class 1Components3/17/801608-1Use of ASME SB-265, SB-337, SB-338, and SB-381, Grades1, 2, 3, and 7 Unalloyed Titanium and ASTM B-363 Titanium Welding Fittings,Section III, Class 2 and 3 Components3/21/77 1613Use of SA-372 Class IV Forgings,Section III Construction1/1/78 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 26 1614Hydrostatic Testing of Piping Prior To or Following theInstallation of Spray Nozzles for Section III, Classes 1, 2, and
3 Piping Systems1/1/79 1615Use of A587-73,Section III, Class 3 Construction1/1/78 1616Ultrasonic Examination of Seamless Austenitic Steel Pipe,Section III, Class 1 Construction7/1/75 1622PWHT of Repair Welds in Carbon Steel Castings,Section III,Class 1, 2, and 31/1/76 1623Design by Analysis for Section III, Class 1 Sleeve-Coupled andOther Patented Piping Joints3/1/79 1625Repair of Section III Class 2 and 3 Tanks12/31/74 1633Brazing of Seats to Class 1, 2, and 3 Valve Body or Bonnets,Section III1/1/78 1637Effective Date for Compliance with NA-3700 ofSection III1/1/75 1645Use of DeLong Diagram for Calculating the Delta FerriteContent of Welds in Section III, Class 1, 2, and CS
Construction1/1/76 1648SA-537 Plates for Section III, Class 1, 2, 3, and MCComponents7/1/76 1649Modified SA-453-GR 660 for Class 1, 2, 3, and CSConstruction1/1/76 1650Use of SA-414 Grade C for Class 2 and 3 Components,Section III, Division 112/31/74 1651Interim Requirements for Certification of Component Supports,Section III, Subsection NF3/1/79 1657Stress Criteria for Class 2 and 3 Atmospheric and LowPressure (0-15 psig) Steel Storage Tanks7/1/77 1659Interconnection of Two Piping Systems for Section III, Class 1,2, and 3 Construction7/1/77 1661Postweld Heat Treatment P-No.1 Materials for Section III, Class 1 Vessels1/1/78 1662Shop Assembly of Components, Appurtenances and PipingSubassemblies for Section III, Class 1, 2, 3, and MC
Construction1/1/78 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 27 1664Use of Cr-Ni-Fe-Mo-Cu-Cb Stabilized Alloy Cb-3 for Section IIIClass 2 and 3 Construction3/21/77 1666Use of SB-12, Alloy 122 for Class 2 and 3 Construction7/1/751682-1Alternate Rules for Material Manufacturers and Suppliers,Section III, Subarticle NA-370012/31/75 1672Nuclear Valves for Section III, Division 1, Class 1, 2, 3Construction3/21/77 1675Tubesheet to Shell or Formed Head Weld Joints,Section III, Class 1 Vessels7/1/76 1676Clarification of Stress Intensities in Curved Pipe or WeldedElbows, Section III7/1/76 1678Butterfly Valves of Circular Cross Section Larger than 24 in.NPS for Section III, Class 2 and 3 Construction1/1/801683-1Bolt Holes for Section III, Class 1, 2, 3 and MC ComponentSupports7/1/76 1684A637 Grade 718 for Bolting Class 1 and 2 Construction1/1/76 1685Furnace Brazing Section III, Class 1, 2, 3 and MC Construction1/1/78 1686Furnace Brazing,Section III, Subsection NF, ComponentSupports1/1/78 1690Stock Materials for Section III Construction,Section III, Division 11/1/77 1691Ultrasonic Examination in Lieu of Radiography of Repair Weldsfor Vessels,Section III, Class 11/1/78 1703Brazing of Copper Alloys,Section III, Class 21/1/78 1706Data Report Forms for Component Supports,Section III, Class1, 2 and 312/31/75 1713Small Material Items,Section III, Division 1, Class 1, 2, 3, CSand MC12/31/75 1718Design of Structural Connections for Linear Type ComponentSupports,Section III, Division 1, Class 1, 2 and 3 and MC7/1/76 1719Single-Welded, Full-Penetration Sidewall Butt Joints inAtmospheric Storage Tanks,Section III, Division 1, Class 27/1/76 CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 28 1728Steel Structural Shapes and Small Material Products forComponents Supports,Section II, Division 1 Construction7/1/77 1740Weld Metal Test,Section III, Class 1, 2, 3, MC and CS7/1/761741-1Interim Rules for the Required Number of Impact Tests forRolled Shapes,Section III, Division 1, Subsection NF,
Components Supports1/1/78 1742Use of SB-75 Annealed Copper Alloy 122,Section III, Division1, Class 2 Construction7/1/76 1743Use of SB-98 Cu-SiB Rod CDA651 Section III, Division 1,Class 2 Components7/1/76 1760Maximum Dimensions for Isolated Pores in Welds
-Class 1Components,Section III, Division 17/1/77 1765Machining After Hydrostatic Testing Class 2 and 3Construction,Section III, Division 17/1/77 1766Testing Requirements for Welding Materials, Class 1, 2, 3, MCand CS Construction,Section III, Division 17/1/77 1767Examination of Tubular Products Without Filler Metal-Class 1Construction,Section III, Division 11/1/77 1768Permanent Attachments to Containment Vessels
-Class MC,Section III, Division 11/1/781769-1Qualification of NDE Level III Personnel,Section III, Division 110/1/77 1773Use of Other Product Forms of Materials for Valves, SectionIII, Division 17/1/77 1775Data Report Forms for Core Support Structures, Class CS,Section III, Division 18/13/79 1777Use of SA-106, Grade C in Class MC Construction,Section III, Division 17/1/77 1787Depth of Weld Repairs for Forgings,Section III, Division 1,Class 1, 2, 3, MC and CS Construction1/1/78 1798Use of ASTM A352-75, Grades LCA and LCC,Section III,Division 1, Class 1, 2, and 31/1/78 1808F-Number Classification of Low Alloy and Carbon Steel BareRod Electrodes, Sections I, II, III, IV, V, VIII, and IX.1/1/78 1810Testing Lots of Carbon Steel Solid, Bare Welding Electrode orWire,Section III, Division 1, Class 1, 2, 3, MC, and CS3/3/80
CODE CASENUMBERTABLE 3ANNULLED UNCONDITIONALLY APPROVEDCODE CASES ANNULMENTDATE 29 1819Use of Type XM-19 for Construction,Section III, Division 1,Class 1, 2, 31/1/784. ANNULLED CONDITIONALLY ACCEPTABLE SECTION III CODE CASESThe annulled Code Cases listed in Table 4 below were conditionally approved bythe NRC. The ASME issuesSection III Code Cases quarterly in supplements to a specific edition, i.e., a new edition of Section III is published every three years, and supplements are published quarterly. Hence, there are 12 supplements to each edition.TABLE 4 - ANNULLED CONDITIONALLY ACCEPTABLESECTION III CODE CASESCODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
CASESANNULMENTDATETITLE / CONDITIONN-11-5(1414-5)High Yield Strength Cr-Mo Steel for Section III, Division 1, Class
1 Vessels8/29/80The information required to be developed by Note 1 in theCode Case should be provided in each referencing Safety Analysis Report.N-31-1Elastomer Diaphragm Valves,Section III, Division 1, Classes 2 and 37/1/93Each applicant who applies the Code Case should indicatein the referencing Safety Analysis Report that the service life of the elastomer diaphragm should not exceed the manufacturer
's recommended service life. Thisrecommended service life should not exceed 1/3 of the minimum cycle life as established by the requirements of paragraph 3 of the Code Case. In addition, the service life of the elastomer diaphragm should not exceed 5 years, and the combined service and storage life of the elastomer diaphragm should not exceed 10 years.
CODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
CASESANNULMENTDATETITLE / CONDITION
30N-32-4Hydrostatic Testing of Embedded Class 2 and Class 3 Pipingfor Section III, Division 1 Construction3/16/84The acceptance of Code Case N-32-4 was based on thefollowing clarification and interpretation. Code Case N-32-
4 does not replace paragraph NC/ND-6129, "Provisions forEmbedded or Inaccessible Welded Joints in Piping," of theCode. The intent of the Code Case is to (1) provide additional testing above Code requirements and (2) permit liquid penetrant or magnetic particle testing in place of radiographic testing for Class 3 piping with 3/8" nominal wall thickness or less.
Paragraph (1) contains an additional requirement to the Code. It was, therefore, acceptable but unnecessary to include in the Code Case.
Paragraph (2) is a variation in the volumetric examination technique and was acceptable as written. Paragraph (3)
contains an additional requirement and is not a relaxation of the Code. It was, therefore, acceptable but unnecessary to include in the Code Case.N-92(1698)Waiver of Ultrasonic Transfer Method,Section III, V, and VIII, Division 17/13/81The material from which the basic calibration block isfabricated 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,
CODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
CASESANNULMENTDATETITLE / CONDITION
31N-100(1711)Pressure Relief Valve Design Rules,Section III, Division 1,Class 1, 2 and 31/1/83The following information should be provided in the SafetyAnalysis Report:
(1) If stress limits are used in excess of those specified for the upset operating condition, it should be demonstrated how the pressure relief function is ensured. Refer to paragraph 3.1,Section I, of the Case for Class and paragraph 3.2,Section II, of the Case for Class 2 and 3 pressure relief valves.
(2) If Case 1660 is to be used in conjunction with the Case, it should be stated that the stress limits of Case 1660
supersede those of paragraph 3.2(b),Section I, of Case
1711. Functional assurance of (1) above is required in all situations.N-106-2(1720-2)Weld End Preparation for Section III, Division 1 Construction8/14/93The acceptance of weld end preparations other than thoseshown in Figures 1, 2, and 3 of the Code Case should be evaluated on a case-by-case basis.N-110(1727)Alternate Test Fluids,Section III, Division 11/1/79The applicant should provide justification in the referencingSafety Analysis Report for the fluid selected for use in the pressure test. The information provided should demonstrate that the fluid selected will not have deleterious effects on the material of the pressure boundary and that the fluid may be safely used at the specified temperature and pressure of the test. When the fluid selected for use is the operating fluid, additional information is not required.
CODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
CASESANNULMENTDATETITLE / CONDITION
32N-116(1734)Weld Design for Use for Section III, Division 1, Class 1, 2, 3 andMC Construction of Component Supports1/1/78If the configuration of Figure 1 of the Code Case is used forClass 1 and MC components supports, full penetration welds should be used. The application of the configuration shown in Figures 2 and 3 should be restricted to the welding of cans for spring encapsulation in spring hangers.
In Figure 3, the length of the leg of the fillet weld adjacent to the plate should be equal to the thickness of the exposed edge of the plate; also, the leg of the fillet weld adjacent to the shell should be equal to the thickness of the exposed end of the shell.N-146-1(1780-1)Hydrostatic Testing and Stamping of Components,Section III,Division 1, Construction1/1/82On a generic basis, the application of the Code Case islimited to pumps and valves. Application to other components should be treated on a case-by-case basis.
Each licensing application in which the Code Case is to be used should contain information showing that, as a minimum the closure fixture will impose loads that result in stresses equal to or greater than those induced during the hydrostatic test of a complete pump assembly. A closure fixture for the part being tested that is similar in size and shape to the actual mating part is considered adequate to impose these loads. It is not intended that piping reaction loadings be simulated in the hydrostatic testing.N-175(1818)Welded Joints in Component Standard Supports,Section III, Division 17/1/79That portion of the unwelded housing that is limited to 90maximum should include a minimum of two sectors that are uniform in length.N-199Intervening Elements,Section III, Division 1, Classes 1, 2, 3and MC Component Construction1/1/81The applicants should provide information in thereferencing Safety Analysis Report that demonstrates that all intervening elements have been designed in compliance with the requirements of the respective design specification.
CODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
CASESANNULMENTDATETITLE / CONDITION
33N-238High Temperature Furnace Brazing of Seat Rings in ValveBodies or Bonnets for Section III, Division 1, Class 1, 2, and 3
Valves1/1/82The furnace brazing process procedure qualification shouldinclude a verification for nonsensitization as given in ASTM
A 262-70, Practices A or E, or ASTM A 708-74 whenever materials subject to sensitization are to be brazed.
Documentation is required that a nonsensitizing brazing procedure was employed for valves produced to this Case.N-242-1Materials Certification,Section III, Division 1, Classes 1, 2, 3,MC, and CS Construction6/30/84Applicants should identify in their Safety Analysis Reportsthe components and supports for which the Code Case is being applied and should specify the respective paragraphs of the Code Case.N-252Low Energy Capacitive Discharge Welding Method forTemporary or Permanent Attachments to Components and Supports,Section III, Division 1, and XI7/1/82The applicant should indicate in the Safety Analysis Reportthe application, the material, and the material thickness to which the strain gage or thermocouple will be attached by CD welding.N-260-2Weld Repair of SA-182 Type 316 Forgings,Section III, Division1, Classes 1, 2, 3, and MC12/5/88Type 308L welding materials should not be used to repairgrade F 316 N forgings because of the difference in strength levels.N-263Alternate Thread Forms, Series and Fits for ComponentSupports,Section III, Division 13/17/83The following information should be provided in the SafetyAnalysis Report: (1) a description of the application, (2) a need for the use of the Code Case, and (3) a demonstration that support design will withstand maximum conditions of loading with the worst combination of thread tolerance.
CODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
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34N-274Alternative Rules for Examination of Weld Repairs for SectionIII, Division 1 Construction6/30/86The ultrasonic examination procedures shall be proven byactual demonstration, to the satisfaction of the Authorized Nuclear Inspector, that the procedures are capable of detecting unacceptable cracks according to Section XI
requirements.N-275Repair of Welds,Section III, Division 112/31/83Use of the Code Case is applicable only when the removalof an indication requires that the full weld thickness be removed and, in addition, the backside of the weld assembly joint is not accessible for the removal of examination material. If an indication is removed and weld-metal layers still remain, it is not acceptable to gouge through the wall in order to qualify for use of the Code Case. Instead, examination of the cavity is required when such an indication has been removed.N-279Use of Torquing as a Locking Device for Section III, Division 1,Class 1, 2, 3, and MC Component Supports7/13/81When torquing or other preloading is used as a lockingdevice and the joint is later unloaded or disassembled, the bolting should be replaced unless it can be demonstrated or proved to the Authorized Nuclear Inspector that the original bolting has not been permanently strained.N-310-1Certification of Bolting Materials,Section III, Division 1, Class 1,2, 3, MC and CS7/1/82Each applicant who applies the Code Case should indicatein 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-314Alternate Rules for Thread Engagement,Section III, Division 15/11/84Applicants should identify in their Safety Analysis Report(1) the minimum length of thread engagement and (2) the procedure used to establish thread engagement.
CODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
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35N-348N-348-1 N-348-2Use of SA-574 Socket Weld Head Cap Screws,Section III, Division 19/7/852/20/89
8/14/93Applicants should justify in their Safety Analysis Reportswhy use of these socket head cap screws will not result in early failure from stress corrosion cracking.N-350Postweld Heat Treatment
-Thickness of Material,Section III, Division 19/5/85Applicants wishing to use this Case for other than P-1materials should demonstrate that the use of this Case will not adversely affect the required material properties.N-383-1Weld Repair of SA-182 Austenitic Forgings,Section III, Division1, Classes 1, 2, and 39/5/85Applicants who apply the provisions of this Case to permitmaterial manufacturers to weld repair austenitic forgings without resolution heat treatment should provide justification to the NRC staff (via the Safety Analysis Report) why this is acceptable for their applications, including their evaluation of the susceptibility for stress corrosion cracking.N-397Alternative Rules to the Spectral Broadening Procedures ofN-1226.3 for Classes 1, 2, and 3 Piping,Section III, Division 12/20/87The Code Case is acceptable for specific plant applicationson a case-by-case basis pending revision of Regulatory Guide 1.122, "Development of Floor Design ResponseSpectra for Seismic Design of Floor-Supported Equipment or Components.
"N-398Reporting of Charpy-V Notch Test Results,Section III, Division 12/20/87The Code Case is not acceptable to steam generator orreactor coolant pump supports. Applicants wishing to use this Code should indicate in the Safety Analysis Report the component supports to which the case is applied for review on a case-by-case basis.
CODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
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36N-404Annealed Alloy UNS N06625 Over UNS N06600 BimetallicTubing,Section III, Division 1, Class 112/11/95The outside layer of the bimetallic tubing should be limitedto 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 design wall thickness.N-411-1Alternative Damping Values for Response Spectra Analysis ofClass 1, 2, and 3 Piping,Section III, Division 15/5/00(1) The Code Case damping should be used completelyand consistently, if used at all. (For equipment other than piping, the damping values specified in Regulatory Guide 1.61, "Damping Values for Seismic Design of NuclearPower Plants," are to be used).(2) The damping values specified may be used only in those analyses in which current seismic spectra and procedures have been employed. Such use is to be limited only to response spectral analyses (similar to that used in the study supporting its acceptance, NUREG/CR-3526).
The acceptance of the use with other types of dynamic analyses (e.g., time-history analyses or independent support motion method) is pending further justification.
(3) When used for reconciliation work or for support optimization of existing designs, the effects of increased motion on existing clearances and on-line mounted equipment should be checked.
(4) This Code Case is not appropriate for analyzing the dynamic response of piping systems using supports designed to dissipate energy by yielding (i.e., the design of which is covered by Code Case N-420).
(5) This Code Case is not applicable to piping in which stress corrosion cracking has occurred unless a case- specific evaluation is made and is reviewed by the NRC
staff.
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37N-430Alternative Requirements for Welding Workmanship and VisualAcceptance Criteria for Class 1, 2, 3 and MC Linear-Type and Standard Supports,Section III, Division 17/1/93(1) The applicant should demonstrate that the applicablesupports are not subject to cyclic loading in excess of
20,000 cycles; and
(2) The first sentence of 3.0(f)(1) should be replaced with the following:
"For material 3/8 in. and less nominalthickness, undercut depth of 1/32 in. on one side of the member for the full length of the weld, or 1/32 in. on one side for one-half the length of the weld, and 1/16 in. for one-fourth of the length of the weld on the face of a rectangular tube or one-fourth the length of the weld on the same side of the member is acceptable.
"1361-2Socket Welds, Section III3/1/79Code Case 1361-2 was acceptable when used inconnection with Section III, paragraph NB-3356, Fillet Welds.1412-4Modified High Yield Strength Steel for Section III, Division 1, Class 1 Vessels1/1/77The information required to be developed by Note 1 in theCode 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 4b, instead of SA-508, Class 4.1423-2Wrought Type 304 and 316 with Nitrogen Added, Sections I, III,VIII, Division 1 and 27/1/77Code Case 1423-2 was acceptable subject to compliancewith the recommendations contained in Regulatory Guides
1.31, "Control of Ferrite Content in Stainless Steel WeldMetal," and 1.44, "Control of the Use of SensitizedStainless Steel.
"
CODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
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381521-1Use of H-Grades of SA-240, SA-479, SA-336, andSA-358, Section III1/1/78Code Case 1521-1 was acceptable subject to compliancewith the recommendations contained in Regulatory Guides
1.31, "Control of Ferrite Content in Stainless Steel WeldMetal," and 1.44, "Control of the Use of SensitizedStainless Steel.
"1528-3High Strength Steel SA-508, Class 2 and SA-541, Class 2Forgings,Section III, Class 1 Components1/1/78The information required to be developed by Note 1 in theCode Case should be provided in each referencing Safety Analysis Report.
1569Design of Piping for Pressure Relief Valve Station, Section III7/1/79Code Case 1569 was acceptable subject to compliancewith the recommendations contained in Regulatory Guide 1.67, "Installation of Over-pressure Protection Devices.
"1606-1Stress Criteria Section III, Classes 2 and 3 Piping Subject toUpset, Emergency, and Faulted Operating Conditions7/1/77Code Case 1606-1 was acceptable subject to theinterpretation that the stress limit designations of
"Upset,""Emergency," and "Faulted" do not necessarily implyagreement with specified plant conditions applicable to ASME Code Class 2 and 3 components for fluid systems.
These designations should be established and justified in the design specifications.1607-1Stress Criteria for Section III, Classes 2 and 3 VesselsDesigned to NC/NC-3300 Excluding the NC-3200 Alternate7/1/77Code Case 1607-1 was acceptable subject to theinterpretation that the stress limit designations of
"Upset,""Emergency," and "Faulted" do not necessarily implyagreement with specified plant conditions applicable to ASME Code Class 2 and 3 components for fluid systems.
These designations should be established and justified in the design specifications.
CODE CASENUMBERTABLE 4ANNULLED CONDITIONALLY ACCEPTABLE CODE
CASESANNULMENTDATETITLE / CONDITION
391635-1Stress Criteria for Section III, Class 2 and 3 Valves Subjected toUpset, Emergency, and Faulted Operating Conditions7/1/77Code Case 1635-1 was acceptable subject to theinterpretation that the stress limit designations of
"Upset,""Emergency," and "Faulted" do not necessarily implyagreement with specified plant conditions applicable to ASME Code Class 2 and 3 components for fluid systems.
These designations should be established and justified in the design specifications.1636-1Stress Criteria for Section III, Class 2 and 3 Valves Subjected toUpset, Emergency, and Faulted Operating Conditions7/1/77Code Case 1636-1 was acceptable subject to theinterpretation that the stress limit designations of
"Upset,""Emergency," and "Faulted" do not necessarily implyagreement with specified plant conditions applicable to ASME Code Class 2 and 3 components for fluid systems.
These designations should be established and justified in the design specifications.1689-1Alternate PWHT Time and Temperature for SA-182 GradeF-22, SA-387 Grade 22, Class 2, and SA-335 Grade P-22 Section III, Class 1, 2, 3 and CS1/1/78The alternate postweld heat treatment should beprequalified along with the applicable welding procedure in accordance with ASME Section IX.1783-1Qualification of Nondestructive Examination Personnel, SectionIII, Division 11/1/79The first sentence of paragraph (1) should be replaced withthe following:
"The certification of the Level IIInondestructive examination personnel for the purpose of this Section of the Code will be the responsibility of the employer of the Level III individual. If the employer is not a Certificate Holder, then the verification of such certificate is the responsibility of the Certificate Holder.
"5. CODE CASES SUPERSEDED BY REVISED CODE CASES The Code Cases listed in Table 5 were approved in prior versions of the guide andhave since been superseded by revised Code Cases (on or after July 1, 1974). The date in Column 3 indicates the date on which the ASME approved the revision to the Code
40Case. Note: Code Cases listed without conditions were unconditionally approved for useby the NRC.TABLE 5 - SECTION III CODE CASES THAT HAVE BEENSUPERSEDED BY REVISED CODE CASES ON OR AFTER JULY 1, 1974CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATEN-5(1344-5)Nickel-Chromium, Age-Hardenable Alloys (Alloy X750),Section III12/13/82N-7(1358-5)High Yield Strength Steel,Section III, Division 1, Class 1 Vessels12/13/82The information required to be developed by Note 1 in theCode Case should be provided in each referencing Safety Analysis Report.N-20(1484-3)
N-20-1SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690) atNickel-Iron-Chromium Alloy 800 at a Specified Minimum Yield Strength of 40.0 Ksi,Section III, Division 1, Class 19/5/8512/7/87N-20-2N-20-3SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690) atNickel-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 111/30/882/26/99N-30-1(1539)Metal Bellows and Metal Diaphragm Stem Sealed Valves, SectionIII, Classes 1, 2, and 311/21/77N-31(1540-2)Elastomer Diaphragm Valves,Section III, Class 2 and 37/18/85Each applicant who applies the Code Case should indicate inthe referencing Safety Analysis Report that the service life of the elastomer diaphragm should not exceed the manufacturer
's recommended service life. Thisrecommended service life should not exceed 1/3 of the minimum cycle life as established by the requirements of paragraph 3 of the Code Case. In addition, the service life of the elastomer diaphragm should not exceed 5 years, and the combined service and storage life of the elastomer diaphragm should not exceed 10 years.N-55(1609-1)Inertia and Continuous Drive Friction Welding,Section I, III, IV,VIII, Division 1 and 2, and IX4/5/84N-60(1618-2)
N-60-1Material for Core Support Structures,Section III, Division 1,Subsection NG5/25/839/17/84Welding 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 CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 41N-60-2 N-60-3 N-60-4Material for Core Support Structures,Section III, Division 1,Subsection NG9/5/855/13/91
2/15/94Welding 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-62-2(1621-2)
N-62-3 N-62-4 N-62-5 N-62-6Internal and External Valve Items,Section III, Division 1, Class 1, 2 and 3 Line Valves7/18/859/5/857/24/8912/11/895/11/94The Code requires that Class 1 and Class 2 valvemanufacturers meet the provisions of NCA 4000, "QualityAssurance," and, in addition, Class 3 valve manufacturersshould also meet the provisions of NCA-4000.N-71-7(1644-7)
N-71-8
(1644-8)Additional Materials for Component Supports,Section III, Division1, Subsection NF, Class 1, 2, 3 and MC Component Supports5/15/781/7/80The maximum measured ultimate tensile strength (UTS) ofthe 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 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 essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.N-71-9(1644-9)Additional Materials for Component Supports Fabricated byWelding,Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component Supports5/11/81In the last sentence of paragraph 5.3, reference should bemade to paragraph 4.5.2.2, "Alternate Atmosphere ExposureTime Periods Established by Test," of the AWS D.1.1 Codefor the evidence presented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of time.
CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 42N-71-10
N-71-11Additional Materials for Component Supports Fabricated byWelding,Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component Supports6/17/822/14/83The maximum measured ultimate tensile strength (UTS) ofthe 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 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 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, "Alternate Atmosphere Exposure TimePeriods Established by Test," of the AWS D.1.1 Code for theevidence presented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of time.N-71-12Additional Materials for Component Supports Fabricated byWelding,Section III, Division 1, Class 1, 2, 3 and MC2/20/84The maximum measured ultimate tensile strength (UTS) ofthe 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 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 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,
"Alternate Atmosphere Exposure Time Periods Established CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 43N-71-12 (cont'd)Additional Materials for Component Supports Fabricated byWelding,Section III, Division 1, Class 1, 2, 3 and MC2/20/84by Test," of the AWS D.1.1 Code for the evidence presented toand 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 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 material, it should be at least 1000F (540C) and should not exceed 1150F (620C)for Class 1 and Class 2 material and 1175F (640C) for Class 3material. The new holding time at temperature for weld thickness (nominal) should 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 thickness over
1/2 inch to 5 inches, and 5hours plus 15 minutes for each additional inch over 5 inches.N-71-13N-71-14 N-71-15 N-71-16 (cont'd)Additional Materials for Subsection NF, Classes 1, 2, 3 and MCComponent Supports Fabricated by Welding,Section III, Division 112/5/8512/16/862/12/9312/31/96The maximum measured ultimate tensile strength (UTS) ofthe 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 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 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,
"Alternate Atmosphere Exposure Time Periods Establishedby Test," of the AWS D.1.1 Code for the evidence presentedto and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of tim
e. Paragraph
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 heat treatment should be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it should be at least 1000F (540C) and should not exceed
1150F (620C) for Class 1 and Class 2 material and 1175F(640C) for Class 3 material.
CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 44N-71-13 N-71-14 N-71-15 N-71-16 (cont'd)Additional Materials for Subsection NF, Classes 1, 2, 3 and MCComponent Supports Fabricated by Welding,Section III, Division 112/5/8512/16/862/12/9312/31/96The new holding time at temperature for weld thickness(nominal) should 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 /> perinch 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 /> plus15 minutes for each additional inch over 5 inches. The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with Section
5.3.4 of the USNRC Standard Review Plan (NUREG-0800) or on a case-by-case basis. The fracture toughness requirements as listed in this Code Case apply only to piping supports and not to Class 1, Class 2, and Class 3 component supports.N-77(1630)External Pressure Charts for High Yield Strength Carbon Steelsand Low Alloy Steels (Yield strength above 38 Ksi to 60 Ksi Inclusive) For Section III, Class 1, 2, 3, and MC; and Section VIII,
Division 1 and 27/10/78N-95-1(1701-1)Determination of Capacities of Vacuum Relief Valves,Section III,Division 1 and 2, Class MC7/9/79N-102-1(1714-2)Postweld Heat Treatment of P-1 Material,Section III, Class MC8/28/78N-119-2(1739-2)
N-119-3
(1739-3 N-119-4
(1739-4)
N-119-5Pump Internal Items,Section III, Division 1, Class 1, 2, and 38/25/8012/1/80
7/18/85N-122Stress Indices for Structural Attachments, Class 1,Section III, Division 17/24/89N-133(1761-1)Use of SB-148 Alloy CA954 for Section III, Division 1, Class 2 or 3 Flanged End Valves1/14/77N-133-1N-133-2Use of SB-148 Alloys 952 and 954,Section III, Division 1, Class 35/19/857/18/85N-154(1791)Projection Resistance Welding of Valve Seats,Section III, Division1, Class 1, 2 and 3 Valves12/5/85N-160(1797)Finned Tubing for Construction,Section III, Division 17/18/85 CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 45N-188Use of Welded Ni-Fe-Cr-Mo-Cu (Alloy 825) and Ni-Cr-Mo-Cb(Alloy 625) Tubing,Section III, Division 1, Class 31/1/78N-192N-192-1Use of Flexible Hose for Section III, Division 1, Class 1, 2, and 3Construction8/30/799/16/81The applicant should indicate system application, design andoperating pressure, and pressure-temperature rating of the flexible hose. Data to demonstrate compliance of the flexible hose with NC/ND-3649, particularly NC-ND-3649.4(e), are required to be furnished with the application.N-196Exemption from the Shake-down Requirements When PlasticAnalysis is Performed for Section III, Division 1, Class 1 Construction1/8/79N-207Use of Modified SA-479 Type XM-19 for Section III, Division 1,Class 1, 2, or 3 Construction3/19/79N-214N-214-1Use of SA-351, Grade CN7M, for Valves for Section III, Division 1,Construction9/7/825/25/83N-224 Use of ASTM A500 Grade B and ASTM A501 Structural Tubing forWelded Attachments for Section III, Class 2 and 3 Construction5/11/81N-237Hydrostatic Testing of Internal Piping,Section III, Division 19/7/82N-237-1Hydrostatic Testing of Internal Piping,Section III, Division 1, Classes 2 and 35/25/83N-242Materials Certification,Section III, Division 1, Classes 1, 2, 3, MC,and CS Construction4/10/80Applicants should identify the components and supportsrequiring the use of paragraphs 1.0 through 4.0 of the Code Case in their Safety Analysis Reports.N-246Use of SB-169 Alloy CA614,Section III, Division 1, Class 39/7/82N-246-1SB-169, Alloy C 61400,Section III, Division 1, Class 35/25/83N-249Additional Materials for Component Supports Fabricated WithoutWelding,Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component Supports5/11/81Footnote 2 of the Code Case should apply to all materialslisted in Tables 1, 2, 3, 4, and 5 of the Code Case and should be so indicated on line 5 of the
"Reply."
CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 46N-249-1Additional Materials for Component Supports Fabricated WithoutWelding,Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component Supports6/17/82Paragraph 7 of the
"Reply" should reference the requirementsof NF-2600 instead of NF-2800. This is a typographical error in that NF-2800 does not exist.N-249-2N-249-3Additional Materials for Subsection NF Class 1, 2, 3, and MCComponent Supports Fabricated Without Welding,Section III,
Division 12/14/832/20/84N-249-4N-249-5Additional Material for Subsection NF, Classes 1, 2, 3, and MCComponent Supports Fabricated Without Welding,Section III,
Division 19/17/844/8/85The fracture toughness requirements as listed in Code CaseN-249-4 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 Section 5.3.4 of the USNRC
Standard Review Plan (NUREG-0800) or on a case-by-case
basis.N-249-6N-249-7 N-249-8 N-249-9 N-249-10
N-249-11 N-249-12Additional Material for Subsection NF, Classes 1, 2, 3, and MCComponent Supports Fabricated Without Welding,Section III,
Division 19/5/8512/5/8512/16/865/6/895/13/91
2/12/93
5/11/94The fracture toughness requirements apply only to pipingsupports 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 Section
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: For these cases, it should be demonstrated by the Owner 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 essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.N-260Weld Repair of SA-182 Type 316 Forgings,Section III, Division 1,Classes 1, 2, 3, and MC7/18/85 CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 47N-260-1Weld Repair of SA-182 Type 316 Forgings,Section III, Division 1,Classes 1, 2, 3, and MC12/5/85Type 308 L welding materials should not be used to repairgrade F 316 N forgings because of the difference in strength levels.N-265Modified SA-487 Castings,Section III, Division 1, Class 15/19/85N-299Use of Nickel-Chromium-Molybdenum-Columbium Alloy 625Forgings,Section III, Division 1, Class 2 and Class 3 Components7/18/85N-304N-304-1 N-304-2 N-304-3Use of 20 Cr-25Ni-6Mo (Alloy UNS N08366) Welded Tubes forSection III, Division 1, Classes 2 and 3 Construction7/12/845/19/85
12/5/85
2/23/87N-309Identification of Materials for Component Supports,Section III, Division 15/11/84N-318N-318-1 N-318-2 N-318-3 N-318-4Procedure for Evaluation of the Design of Rectangular CrossSection Attachments on Class 2 or 3 Piping,Section III, Division 12/20/847/12/849/5/8512/11/894/28/94Applicants should identify in their Safety Analysis Report: (1)the method of lug attachment, (2) the piping system involved, and (3) the location in the system where the Case is to be
applied.N-319N-319-1 N-319-2Alternate Procedure for Evaluation of Stresses in Butt WeldElbows in Class 1 Piping,Section III, Division 17/24/898/14/90
1/17/00N-321Use of Modified SA-249, Type 304,Section III, Division 1, Class 1Construction12/5/85N-337Use of ASTM B 525-70 Grade II, Type II, Sintered AusteniticStainless Steel for Class 2, 3, and MC Component Standard Supports,Section III, Division 17/18/85N-345Attachment of AMS 5382 Alloy 31 Seat Rings by Friction Welding,Section III, Division 1, Classes 1, 2, and 312/13/82N-352Use of SA-638 Grade 660 Forgings and Bars Below 700FWithout Stress Rupture Tests,Section III, Division 17/18/85N-362Alternate Rules for Pressure Testing of Containment Items,Section III, Division 112/13/82N-362-1Pressure Testing of Containment Items,Section III, Division 1,Classes 1, 2, and MC7/12/84 CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 48N-370
N-370-1Modified SA-705 Grade XM-13 Forgings,Section III, Division 17/18/8512/5/85N-37112Cr-1W-1Mo-1/4V Martensitic Stainless Steel Valve Internals,Section III, Division 17/18/85N-379 Bimetallic Tubing Section III, Division 1, Class 17/18/85N-383Weld Repair of SA-182 Austenitic Forgings,Section III, Division 1,Classes 1, 2, and 37/18/85Applicants who apply the provisions of the Case to permitmaterial manufacturers to weld repair austenitic forgings without resolution heat treatment should provide justification to the NRC staff (via the Safety Analysis Report) why this is acceptable for their applications, including their evaluation of the susceptibility for stress corrosion cracking.N-391Procedure for Evaluation of the Design of Hollow Circular CrossSection Welded Attachments on Class 1 Piping,Section III,
Division 17/24/89N-391-1Procedure for Evaluation of the Design of Hollow Circular CrossSection Welded Attachments on Class 1 Piping,Section III,
Division 18/24/95The following typographical errors need to be corrected: 1) Inequation (3) the + sign should be changed to an = sign, and
2) In equation (4) the first + sign should be changed to an =
sign.N-392Procedure for Evaluation of the Design of Hollow Circular CrossSection Welded Attachments on Classes 2 and 3 Piping,Section III, Division 112/11/89N-392-1Procedure for Evaluation of the Design of Hollow Circular CrossSection Welded Attachments on Classes 2 and 3 Piping,Section III, Division 112/11/92Applicants should identify in their Safety Analysis Report: (1)the method of lug attachment, (2) the piping system involved, and (3) the location in the system where the Case is to be
applied.
CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 49N-392-2Procedure for Evaluation of the Design of Hollow Circular CrossSection Welded Attachments on Classes 2 and 3 Piping,Section III, Division 112/12/94Applicants should identify in their Safety Analysis Report: (1)the method of lug attachment, (2) the piping system involved, and (3) the location in the system where the Case is to be
applied.N-411Alternative Damping Values for Seismic Analysis of Classes 1, 2,and 3 Piping Sections,Section III, Division 12/20/86(1) The damping values specified may be used in analyzingpiping response for seismic and other dynamic loads being filtered through building structures provided response mode frequencies are limited to 33 Hz and below. Within this range, the Code Case damping should be used completely and consistently, if used at all. (For equipment other than piping, the damping values specified in Regulatory Guide 1.61, "Damping Values for Seismic Design of Nuclear PowerPlants," should be used).(2) The damping values specified may be used only in those analyses in which current seismic spectra and procedures have been employed. Such use should be limited only to response spectral analyses (similar to that used in the study supporting its acceptance
-Reference NUREG/CR-3526. Theacceptance of the use with other types of dynamic analyses (e.g., time-history analysis) is pending further justification.
(3) When used for reconciliation work or for support optimization of existing designs, the effects of increased motion on existing clearances and on line mounted equipment should be checked. (4) This Code Case is not appropriate for analyzing the dynamic response of piping systems using supports designed to dissipate energy by yielding (i.e., the design of which is covered by Code Case N-
420). (5) This Code Case is not applicable to piping in which stress corrosion cracking has occurred unless a case-specific evaluation is made and is reviewed by the NRC staff.N-418Use of Seamless Ni-Fe-Cr-Mo-Cu Low Carbon (UNS N08028 andUNS N08904) Tubing,Section III, Division 1, Classes 2 and 37/30/86N-438N-438-1 N-438-2Fe-24.5Ni-21Cr-6.5 Mo-0.2N (Alloy UNS N08367) Seamless andWelded Pipe, Tube, Plate, Bar, Fittings, and Forgings, Class 2 and
3 Construction,Section III, Division 13/8/893/5/907/27/92N-438-3UNS N08367 Material,Section III, Division 1, Class 2 and 3Construction5/24/96 CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 50N-439Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Forgings, Plate,Seamless and Welded Pipe, and Welded Tube, Class 2 and 3 Construction,Section III, Division 17/10/00N-440Use of 20Cr-18Ni-6Mo (Alloy UNS J93254) Castings, Class 2 and3 Construction,Section III, Division 17/10/00N-441N-441-1Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2 and 3Construction,Section III, Division 111/25/927/10/00N-443N-443-1High Yield Strength Cr-Mo Steel, Class 1 Components,Section III, Division 13/8/8911/11/99N-453Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNSN08925) Welded Pipe for Class 2 and 3 Construction,Section III,
Division 111/30/88N-453-1Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNSN08925) Seamless and Welded Pipe for Class 2 and 3 Construction,Section III, Division 14/30/92N-453-2Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNSN08925 and N08926) Seamless and Welded Pipe for Class 2 and
3 Construction,Section III, Division 112/12/95N-454Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNSN08925) Wrought Fittings for Class 2 and 3 Construction,Section III, Division 14/30/92N-455Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNSN08925) Forged Flanges and Fittings for Class 2 and 3 Construction,Section III, Division 14/30/92N-466Modified 9Cr-1Mo Material,Section III, Division 1, Classes 1, 2, and 34/30/90N-469Martensitic Stainless Steel for Class 1, 2, and 3 Components,Section III, Division 16/14/00N-474Design Stress Intensities and Yield Strength Values for Alloy 690With a Minimum Yield Strength of 35 ksi, Class 1 Components,Section III, Division 13/5/90N-474-1Design Stress Intensities and Yield Strength Values for UNSN06690 With a Minimum Specified Yield Strength of 35 ksi, Class
1 Components,Section III, Division 112/9/93N-484Real Time Radioscopic Examination of Welds,Section III, Division 112/16/91 CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 51N-492Grade 9 Titanium Alloy Tubing,Section III, Division 1, Class 1, 2, and 35/11/94N-497Use of Fe-Ni-Cr-Mo-N (C-N-3MN) Cast Materials,Section III,Division 1, Class 2 and 3 Construction12/9/93N-510Borated Stainless Steel for Class CS Core Support Structures andClass 1 Components,Section III, Division 112/12/94N-520Alternative Rules for Renewal of N-type Certificates for Plants Notin Active Construction,Section III, Division 110/26/94N-564-1UNS J93380, Alloy CD3MWCuN, Class 2 and 3 Construction,Section III, Division 112/31/96N-580Use of Alloy 600 With Columbium Added,Section III, Division 15/20/981332-6Requirements for Steel Forgings,Section III and VIII, Division 11/8/791335-9Requirements for Bolting Materials8/28/781337-91337-10Special Type 403 Modified Forgings or Bars, Section III4/28/755/15/781395-3SA-508, Class 2 Forgings with Modified Manganese Content,Section III or Section VIII, Division 21/8/791407-2Time of Examination for Class 1, 2, and 3,Section III Vessels7/1/741414-31414-4High Yield Strength Cr-Mo Steel for Section III, Division 1, Class 1 Vessels3/1/768/9/77The information required to be developed by Note 1 in the CodeCase should be provided in each referencing Safety Analysis Report.1484-1SB-163 Nickel-Chromium-Iron Tubing (Alloy 600) at a SpecifiedMinimum Yield Strength of 40.0 Ksi,Section III, Class 111/4/741484-2SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690) at aSpecified Minimum Yield Strength of 40.0 Ksi,Section III, Class 18/13/76 1492Post Weld Heat Treatment,Section I, III and VIII, Division 1 and 23/3/75 1508Allowable Stresses, Design Intensity and/or Yield Strength Values,Section I, III, and VIII, Divisions 1 and 26/30/751516-1Welding of Seats in Valves for Section III Applications8/11/751540-1Elastomer Diaphragm Valves,Section III, Classes 2 and 31/14/77 CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 521541-1Hydrostatic Testing of Embedded Class 2 and Class 3 Piping forSection III Construction9/30/761541-2Hydrostatic Testing of Embedded Class 2 and Class 3 Piping forSection III, Division 1 Construction5/15/78 1552Design by Analysis of Section III, Class 1 Valves8/29/77 1553Upset Heading and Roll Threading of SA-453 for Bolting in Section III3/3/75 1555Certification of Safety Relief Valves on Liquids1/14/771557-2Steel Products Refined by Secondary Remelting1/8/79 1606Stress Criteria for Section III, Class 2 and 3 Piping Subjected toUpset, Emergency, and Faulted Operating Conditions12/16/74Code Case 1606 was acceptable subject to the interpretationthat the stress limit designations of
"Upset," "Emergency,"and "Faulted" do not necessarily imply agreement withspecified plant conditions applicable to ASME Code Class 2 and 3 components for fluid systems. These designations should be established and justified in the design specifications.
1607Stress Criteria for Section III, Classes 2 and 3 Vessels Subjectedto Upset, Emergency, and Faulted Operating Conditions11/4/74Code Case 1607 was acceptable subject to the interpretationthat the stress limit designations of
"Upset," "Emergency,"and "Faulted" do not necessarily imply agreement withspecified plant conditions applicable to ASME Code Class 2 and 3 components for fluid systems. These designations should be established and justified in the design specifications.
1618Material for Core Support Structures,Section III, Subsection NG3/3/75(a) Welding of age-hardenable alloy SA-453 Grade 660 andSA-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 acceptable on a generic basis.1618-1Material for Core Support Structures,Section III, Subsection NG3/1/76Welding of age-hardenable alloy SA-453 Grade 660 andSA-637 Grade 688 should be performed when the material is in the solution-treated condition.
CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 53 1626Normalized and Tempered 1-1/4 Cr Low Alloy Steel Forgings,Section I,Section III, and Section VIII, Division 1 and 21/8/79 16341634-1Use of SB-359 for Section III, Class 3 Construction8/12/748/13/76 16441644-1
1644-2
1644-3Additional Materials for Component Supports,Section III,Subsection NF, Class 1, 2, 3, and MC Construction4/28/756/30/75
11/3/753/1/76The maximum measured ultimate tensile strength of thecomponent support material should not exceed 170 Ksi.1644-41644-5
1644-6Additional Materials for Component Supports and Alternate DesignRequirements for Bolted Joints,Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Construction8/13/763/3/7711/21/77The maximum measured ultimate tensile strength (UTS) ofthe 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 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 essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
1682Alternate Rules for Material Manufacturers and Suppliers, SectionIII, Subarticle NA-37008/11/75 1683Bolt Holes for Section III, Division 1, Class 1, 2, 3 and MCComponent Supports3/1/76 1689Alternate PWHT Time and Temperature for SA-182 Grade F22,Section III, Class 1, 2, 3 and CS9/10/76The alternate postweld heat treatment should be prequalifiedalong with the applicable welding procedure in accordance with ASME Section IX.
1695Brazing,Section III, Class 311/3/75 1701Determination of Capacities of Vacuum Relief Valves,Section III, Class MC3/20/78 CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 54 1702Flanged Valves Larger than 24 inches for Section III, Class 1, 2and 3 Construction7/11/77 1714Postweld Heat Treatment of P-1 Material,Section III, Class MC7/11/77 1720Weld End Preparation for Section III, Division Construction3/1/76Weld end preparations other than those shown in Figures 1,2, and 3 of the Code Case are not acceptable on a generic basis. Such alternative end preparations should be treated on a case-by-case basis.1720-1Weld End Preparation for Section III, Division Construction11/20/78The acceptance of weld end preparations other than thoseshown in Figures 1, 2, and 3 of the Code Case should be evaluated on a case-by-case basis.
1722Vacuum, Carbon Deoxidized SA-508 Forgings,Section III, Division1, and VIII, Division 1 and 21/8/79 1741Interim Rules for the Required Number of Impact Tests for RolledShapes,Section III, Division 1, Subsection NF, Component Supports1/14/77 1755Alternate Rules for Examination of Welds in Piping, Class 1 and 2Construction,Section III, Division 11/14/77 1759Material for Internal Pressure Retaining Items for Pressure ReliefValves,Section III, Division 1, Class 1, 2, and 35/15/78Applicants using this Case should also use Code Case 1711for the design of pressure relief valves.
1769Qualification of NDE Level III Personnel,Section III, Division 12/16/77 1774Minimum Wall Thickness for Class 2 and 3 Valves,Section III, Division 17/11/77 1780Hydrostatic Testing and Stamping of Pumps for Class 1Construction,Section III, Division 13/10/78Each licensing application in which the Code Case is to beused should present information that satisfactorily demonstrates that the subassembly tests adequately simulate the pressure loadings. Also, the closure fixture for the test subassembly should adequately simulate the rigidity of adjacent subassemblies and also simulate the interface loadings from adjacent subassemblies that would result from CODE CASENUMBERTABLE 5, CODE CASES SUPERSEDED BYREVISED CODE CASESREVISIONDATE 55 1780
(continued)Hydrostatic Testing and Stamping of Pumps for Class 1Construction,Section III, Division 13/10/78a hydrostatic pressure test of a complete pump assembly. Asa minimum, the closure fixture should impose loads that result in stresses equal to or greater than those induced during the hydrostatic test of a complete pump assembly. It is not intended that piping reactor loadings be simulated in the hydrostatic testing.
1783Qualification of Nondestructive Personnel,Section III, Division 11/14/77The first sentence of paragraph (1) should be replaced withthe following:
"The certification of the Level III nondestructiveexamination personnel for the purposes of this Section of the Code shall be the responsibility of the employer of the Level III individual. If the employer is not a Certificate Holder, then the verification of such certificate is the responsibility of the Certificate Holder.
"1761Use of SB-148 Alloy CA954 for Section III, Division 1, Class 2 or 3 Flanged End Valves1/14/77
56Appendix ASUPPLEMENTS ADDRESSED IN REVISION 32 TO REGULATORY GUIDE 1.84EDITIONSUPPLEMENTNUMBER BNCS a APPROVALDATE OF CODECASES INSUPPLEMENT
b19924February 12, 199319925April 27, 1993
19926August 9, 1993
19927December 9, 1993
19928February 15, 1994
19929May 11, 1994
199210August 5, 1994
199211December 12, 1994
199212March 14, 1995
19951June 9, 1995
19952August 24, 1995
19953December 12, 1995
19954March 19, 1996
19955May 24, 1996
19956August 9, 1996
19957December 31, 1996
19958March 12, 1997
19959May 26, 1997
199510August 14, 1997
199511December 12, 1997
199512March 2, 1998
19981May 20, 1998
19982July 30, 1998
19983February 15, 1999
19984February 26, 1999 EDITIONSUPPLEMENTNUMBER BNCS a APPROVALDATE OF CODECASES INSUPPLEMENT
b 5719985May 7, 199919986September 24, 1999
19987November 11, 1999
19988January 17, 2000
19989March 28, 2000
199810October 2, 2000
199811December 8, 2000
a BNCS - ASME Board on Nuclear Codes and Standards b Publication generally is 3 months after BNCS approval.
1 Except for those Code Cases pertaining to high temperature gas-cooled reactors;Section III, Division 2; liquidmetal; and submerged spent fuel waste casks.
2 Code Case is not acceptable for use; See Regulatory Guide 1.193.
58Appendix BNumerical Listing of Section III Code Cases inSupplement 4, 1992 Edition, through Supplement 11, 1998, Edition
1N-4-11N-7-1 N-20-3 N-20-4 N-31-1 N-47-30
N-47-31 N-47-32 N-47-33 N-48-2 N-49-4 N-50-1 N-51-2 N-60-5 N-62-6 N-62-7 N-71-16 N-71-17 N-106-2 N-119-6 N-122-2 N-131-1 N-133-3 N-154-1 N-155-2 N-160-1 N-171 N-188-1 N-192-2 N-196-1 N-205 N-208-1 N-208-2 N-213 N-231 N-240
N-241 N-243 N-246-2 N-247 N-249-12 N-249-13 N-262N-265-1N-284-1 2N-292 N-294 N-304-4 N-309-1 N-313 N-315 N-316 N-318-4 N-318-5 N-319-2 N-319-3 N-324 N-329 N-337-1 N-345-1 N-348-2 N-351 N-354-1 N-368 N-369 N-370-2 N-373-1 N-379-1 N-384-1 N-387 N-391-1 N-391-2 N-392-2 N-392-3 N-393 N-394 N-395 N-403 N-404 N-405-1 N-410
N-411-1 N-418-1 N-420
N-430
N-433N-438-1N-438-3 N-438-4 N-439 N-439-1 N-440
N-440-1 N-441-1 N-441-2 N-443-2 N-451 N-452 N-453-3 N-454-1 N-455-1 N-459 N-462 N-464 N-466-1 N-469 N-469-1 N-474-2 N-475 N-476 N-482 N-483-2 2N-483-3 2N-484-1 N-492-1 N-493 N-497-1 N-500
N-500-1 N-501 N-502 N-505 N-507 N-510 2N-510-1 2N-511 N-519 2N-520
N-520-1N-525N-530 2N-539 N-540
N-548 N-549 N-550
N-551 N-558 N-559 N-564 N-564-1 N-564-2 N-565 2N-570
N-572 N-579 N-580
N-580-1 N-594 N-595 2N-595-1 2N-595-2 2N-596 N-607 N-608 N-610
N-611 N-620
N-621 N-625 N-626 N-631 N-632 N-635 N-636 N-637 N-642 N-644 N-646
59REGULATORY ANALYSISA separate regulatory analysis was not prepared for this regulatory guide. The regulatorybasis for this guide is the regulatory analysis prepared for the amendment to 10 CFR 50.55a,
"Codes and Standards," that incorporates this regulatory guide by reference.A copy of the Regulatory Analysis is available for inspection and/or copying for a feeat the NRC
's Public Document Room at 11555 Rockville Pike, Public File Area (O-1F21),Rockville, MD. The PDR
's mailing address is USNRC PDR, Washington, DC 20555-0001;telephone (301)415-4737 or toll-free 1-(800)397-4209; fax (301)415-3548; e-mail
<PDR@NRC.GOV> . Electronic copies of the Regulatory Analysis are available in NRC
'sPublic Electronic Reading Room, which can be accessed through the NRC
's website,ML031490533.