Regulatory Guide 1.85: Difference between revisions

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{{Adams
{{Adams
| number = ML003740365
| number = ML13350A327
| issue date = 05/31/1999
| issue date = 06/30/1974
| title = 1, (Draft Was Issued as DG-1049), Materials Code Case Acceptability ASME Section Iii, Division 1
| title = Code Case Acceptability ASME Section Iii Materials
| author name =  
| author name =  
| author affiliation = NRC/RES
| author affiliation = US Atomic Energy Commission (AEC)
| addressee name =  
| addressee name =  
| addressee affiliation =  
| addressee affiliation =  
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| license number =  
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| contact person =  
| contact person =  
| document report number = RG-1.85, Rev 31
| document report number = RG-1.085
| document type = Regulatory Guide
| document type = Regulatory Guide
| page count = 23
| page count = 4
}}
}}
{{#Wiki_filter:
{{#Wiki_filter:June 1974 U.S. ATOMIC ENERGY COMMISSION
REGULATORY
DIRECTORATE
OF REGULATORY
STANDARDS REGULATORY
GUIDE 1.85 CODE CASE ACCEPTABILITY
ASME SECTION III MATERIALS GUIDE 0


==A. INTRODUCTION==
==A. INTRODUCTION==
Section 50.55a, "Codes and Standards," of 10 CFR Part 50, "Domestic Licensing of Production and Uti lization Facilities," requires, in part, that components of the reactor coolant pressure boundary be designed, fabricated, erected, and tested in accordance with the requirements for Class 1 components of Section III, "Nuclear Power Plant Components,"'  
g Section 50.55a, "Codes and Standards," of 10 CFR Part 50, "Licensing of Production and Utilization Facilities," requires, in part, that components of the reactor coolant pressure boundary be designed, fabri.cated, erected, and tested in accordance with the requirements for Class I components of Section III,"Nuclear Power Plant Components,"'  
of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code or equivalent quality standards.
of the American Society of Mechanical Engineers (ASME) Boiler and Vessel Code or equivalent quality standards.


Footnote 6 to 10 CFR 50.55a states that the use of spe cific Code Cases may be authorized by the Commission upon request pursuant to 10 CFR 50.55a(a)(3), which requires that proposed alternatives to the described re quirements or portions thereof provide an acceptable level of quality and safety. General Design Criterion  
Footnote 6 to Section 50,55a states that the use of specilic Code Cases may be authorized by the Commis-sion upon request pursuant to §50.55a(aX2Xii)  
1, "Quality Standards and Records," of Appendix A, "General Design Crite ria for Nuclear Power Plants," to 10 CFR Part 50 re quires, in part, that structures, systems, and compo nents important to safety be designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety function to be per 1Copies may be obtained from theAmerican Society of Mechanical Engi neers, Three Park Avenue, New York, New York 10016-5990.
which requires that proposed alternatives to the described requirements or portions thereof provide an acceptable level of quality and safety. General Design Criterion I,"Quality Standards and Records." of Appendix A."General Design Criteria for Nuclear Power Plants." to 10 CFR Part 50 requires, in part, that structures.


Phone (212)591-8500;
systems, and components important to safety be de.signed, fabricated, erected, and tested to quality stan.dards commensurate with the importance of the safety function to be performed.
fax (212)591-8501.


Revision 31 May 1999 3UIDE formed. Where generally recognized codes and stan dards are used, Criterion  
Where generally recognized codes and standards are used, Criterion I requires that they be identified and evaluated to determine their applicability, adequacy, and sufficiency and be supple-mented or modified as necessary to assure a quality product in keeping with the required safety functio
1 requires that they be identi fied and evaluated to determine their applicability, adequacy, and sufficiency and be supplemented or modified as necessary to ensure a quality product in keeping with the required safety function.


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


Appendix B, "Quality Assurance Criteria for Nu clear Power Plants and Fuel Reprocessing Plants," to 10 CFR Part 50 requires, in part, that measures be es tablished for the control of special processing of materi als and that proper testing be performed.
Appen-dix B. "Quality Assurance Criteria for Nuclear Power l Copics may be obtained from the American Society of Mechanical Engineers, United Engineering Center, 345 East 47th Street, New York, N.Y. 1007.Plants and Fuel Reprocessing Plant-,," to 10 CFR Part 50.requires, in part, that measures be established for tihe control of special processing of materials and thai proper testing be performed.


This regulatory guide lists those Section III ASME Code Cases oriented to materials and testing that are generally acceptable to the NRC staff for implementa tion in the licensing of light-water-cooled nuclear pow er plants. This guide is being revised to update the NRC staff positions on new Code Cases, revised Code Cases, and annulled Code Cases subsequent to Revision 30 of the guide in October 1994.  This regulatory guide contains no information collection activities and, therefore, is not subject to the USNRC REGULATORY
This regulatory guide lists those Section III ASME Code Cases oriented to materials and testing which are generally acceptable to the AEC Regulatory staff for implementation in the Ilcnsing of light-water-cooled nuclear power plants.
GUIDES The guides are issued in the following ten broad divisions:
Regulatory Guides are issued to describe and make availableto the public such informa tion as methods acceptable to the NRC staff for implementing specific parts of the Corn- 1. Power Reactors 6. Products mission's regulations, techniques usedbythestaff in evaluating specificproblemsorpos-
2. Research and Test Reactors 7. Transportation tulated accidents, and data needed by the NRC staff in its review of applications for per- 3. Fuels and Materials Facilities
8. Occupational Health mits and licenses.
 
Regulatory guides are not substitutes for regulations, and compliance
4. Environmental and Siting 9. Antitrust and Financial Review with them is not required.
 
Methods and solutions differentfrom those set out in theguides
5. Materials and Plant Protection
10. General will be acceptable if they provide a basis for the findings requisite to the issuance or con tinuance of a permit or license by the Commission.
 
Singlecopies of regulatory guides may be obtained free of charge bywriting to the Repro This guide was issued after consideration of comments received from the public. Com- duction and Distribution Services Section, Office of the Chief Information Officer, U.S. Nu ments and suggestionsfor improvements in these guides areencouraged atall times, and clear Regulatory Commission, Washington, DC 20555-0001;
or by fax to (301)415-2289;
guides will be revised, as appropriate, to accommodate comments and to reflect new in- or by emall to DISTRIBUTION@NRC.GOV
formation or experience.
 
Issued guides may also be purchased from the National Technical Information Service on Written comments may be submitted to the Rules and Directives Branch, ADM, U.S. Nu- a standing order basis. Details on this service may be obtained by writing NTIS, 5285 Port clear Regulatory Commission, Washington, DC 20555-0001.
 
Royal Road, Springfield, VA 22161.U.S. NUCLEAR REGULATORY
COMMISSION
REGULATORY ( OFFICE OF NUCLEAR REGULATORY
RESEARCH REGULATORY
GUIDE 1.85 (Draft was issued as DG-1 049) MATERIALS
CODE CASE ACCEPTABILITY
ASME SECTION III, DIVISION 1 requirements of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.). 


==B. DISCUSSION==
==B. DISCUSSION==
The Boiler and Pressure Vessel Committee of the ASME publishes a document entitled "Code Cases." 1 Generally, the individual Code Cases that make up this document explain the intent of Code rules or provide for alternative requirements under special circum stances.
The Boiler and Pressure Vessel Committee of the ASME publishes documents entitled "Interpretations of the ASME Boiler and Pressure Vessel Code,"1 These documents, referred to as "Code Cases," explain the intent of Code rules or provide Code permission to use alternative requirements under special circumstances or with suitable precautions.
 
Most Code Cases are eventually superseded by re vision to the Code and then are annulled by action of the ASME. In such cases, the intent of the annulled Code Case becomes part of the revised Code, and therefore continued use of the Code Case intent is sanctioned un der the rules of the Code. In other cases, the Code Case is annulled because it is no longer acceptable or there is no further requirement for it. A Code Case that was ap proved for a particular situation and not for a generic application should be used only for construction of the approved situation because annulment of such a Code Case could result in construction that would not meet Code requirements.
 
The Code Cases listed in this guide are limited to those cases applicable to Section III that are oriented to ward materials and testing.
 
All published Code Cases in the area of materials and testing that are applicable to Section III of the Code and were in effect on May 12, 1994,* were reviewed for inclusion in this guide. In addition to the listing of ac ceptable Code Cases, this revision of the guide includes listings of (1) Code Cases that were identified as ac ceptable in a prior version of this regulatory guide and that were annulled after the original issuance of this guide (June 1974) and (2) Code Cases that were identi fied as acceptable in a prior version of this regulatory guide and that were superseded by revised Code Cases after the original issuance of this guide (June 1974).  Code Cases that are not listed herein are either not en dorsed or will require supplementary provisions on an individual basis to attain endorsement status.  The endorsement of a Code Case by this guide constitutes acceptance of its technical position for ap plications not precluded by regulatory or other require ments or by the recommendations in this or other regu latory guides. Contingent endorsement is indicated in Regulatory Position C.l.a for specific cases. However, it is the responsibility of the user to make certain that no regulatory requirements are violated and that there are *Lines indicate substantive changes from Revision 30.no conflicts with other recommended limitations re sulting from Code Case usage.  Acceptance or endorsement by the NRC staff ap plies only to those Code Cases or Code Case revisions with the date of ASME approval as shown in the Regu latory Position of this guide. Earlier or later revisions of a Code Case are not endorsed by this guide. New Code Cases will require evaluation by the NRC staff to deter mine whether they qualify for inclusion in the approved list. Because of the continuing change in the status of Code Cases, it is planned that this guide will require pe riodic updating to accommodate new Code Cases and any revisions of existing Code Cases.  C. REGULATORY
POSITION
 
===1. ACCEPTABLE ===
CODE CASES The Section III ASME Code Cases 2 listed below (by number, date of ASME approval, and title) are ac ceptable to the NRC staff for application in the construction of components for light-water-cooled nuclear power plants. Their use is acceptable within the limitations stated in the "Inquiry" and "Reply" sections of each individual Code Case, within the limitations of such NRC or other requirements as may exist, and within the additional limitations recommended by the NRC staff given with the individual Code Cases in the listing. The categorization of Code Cases used in this guide is intended to facilitate the Code Case listing and is not intended to indicate a limitation on its usage.  a. Materials-Oriented Code Cases (Code Case Number, Date of ASME Approval, 3 and title)(1) N-7-1 Code Cases Involving Plate 12-13-82 High Yield Strength Steel, Sec 02-20-86 tion III, Division 1, Class 1 02-20-89 Vessels 02-05-92 (2) Code Cases Involving Pipe and Tubes N-20-3 11-30-88 SB-163 Nickel-Chromium-Iron
12-16-91 Tubing (Alloy 600 and 690) and Nickel-Iron-Chromium Alloy 800 at a Specified Mini mum Yield Strength of 40.0 Ksi and Cold Worked Alloy 800 at a yield strength of 47.0 Ksi, Section III, Division 1, Class 1 2 A numerical listing of the Code Cases appears in the appendix.
 
3 When more than one date is given, the earlier date is that on which the Code Case was approved by the ASME, and the later date(s) is that on which the Code Case was reaffirmed by the ASME.1.85-2 Vt L
N-188-1 05-15-78 07-13-81 07-13-84 07-13-87 08-14-90 08-14-93 N-294 08-25-80 05-25-83 07-30-86 07-30-89 07-27-92 N-404 04-05-84 04-05-87 12-11-89 12-11-92 Use of Welded Ni-Fe-Cr-Mo Cu (Alloy 825) and Ni-Cr-Mo Cb (Alloy 625) Tubing, Section III, Division 1, Class 2 and 3 SB-148 Alloy 952 and 954, and SB-62 Alloy 836 Fittings, Section III, Division 1, Class 2 Annealed Alloy UNS N06625 Over UNS N06600 Bimetallic Tubing, Section III, Division 1, Class 1 Code Case N-404 is acceptable subject to the fol lowing conditions in addition to those conditions speci fied in the Code Case: The outside layer of the bimetal lic tubing should be limited to a minimum of 5 percent and to a maximum of 40 percent of the wall thickness.
 
The tolerance on the outside layer of material should not exceed -0.000 to +0.007 inches of the specified de sign wall thickness.
 
N-418-1 07-30-86 Use of Seamless Ni-Fe-Cr-Mo
07-30-89 Cu Low Carbon (UNS N08028 07-27-92 and UNS N08904) Tubing, Section III, Division 1, Classes 2 and 3 N-439 02-23-87 Use of 20Cr-18Ni-6Mo (Alloy 12-11-89 UNS S31254) Forgings, 12-11-92 Plate, Seamless and Welded Pipe, and Welded Tube, Class 2 and 3 Construction, Section III, Division 1 N-441-1 11-25-92 Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2 and 3 Construction, Section III, Division 1 N-466-1 04-30-90 Modified 9Cr-iMo Material, 02-12-93 Section III, Division 1, Classes 1, 2, and 3 N-502 02-05-92 SA-268, Grade 26-3-3 (UNS S44660) Section III, Division 1, Classes 2 and 3 (3) Codes Cases Involving Bars and Forgings 1337-11 05-15-78 Special Type 403 Modified (N-4-11) 07-13-81 Forgings or Bars, Section III, 07-13-84 Division 1, Class 1 and CS 07-13-87 08-14-90 08-14-93 N-370-2 12-05-85 12-05-88 12-16-91 Modified SA-705 Grade XM-13 Forgings, Section III, Division 1 N-469 03-08-89 Martensitic Stainless Steel for 04-30-92 Class 1, 2, and 3 Components, Section III, Division 1 (4) Code Cases Involving General Usage N-60-5 02-15-94 Material for Core Support Structures, Section III, Division 1 Code Case N-60-5 is acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.
 
The maximum yield strength of strain hardened austenitic stainless steel should not exceed 90,000 psi in view of the susceptibility of this material to environmental cracking.
 
N-71-16 02-12-93 Additional Materials for Sub section NF, Classes 1, 2, 3 and MC Component Supports Fabri cated by Welding, Section III, Division 1 Code Case N-71-16 is acceptable subject to the fol lowing conditions in addition to those conditions speci fied in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking.
 
Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material.
 
For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that (a) a corrosive environment is not present and (b) the component that contains the mate rial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
5.3, reference should be made to paragraph
4.5.2.2, "Alter-1.85-3 nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence pre sented to and accepted by the Authorized Inspector concerning exposure of electrodes for longer periods of tim
 
====e. Paragraph ====
16.2.2 is not acceptable as written and should be replaced with the following:
When not ex empted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F (620'C) for Class 1 and Class 2 material and 1175°F (640' C) for Class 3 material.
 
The new holding time at temperature for weld thickness (nominal)
shall be 30 minutes for 1/2 inch or less, 1 hour per inch for thick ness over 1/2 inch to 5 inches, and 5 hours plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap ply only to piping supports and not to Class 1, 2, and 3 component supports.
 
The fracture toughness of Classes 1, 2, and 3 component supports shall be characterized in accordance with paragraph
5.3.4 of the USNRC Stan dard Review Plan (NUREG-0800)
or on a case-by-case basis.  1759-1 05-15-78 Material for Internal Pressure (N-131-1)
07-13-81 Retaining Items for Pressure 12-11-81 Relief Valves, Section III, 12-05-84 Division 1, Class 1, 2, and 3 12-05-87 12-03-90 12-03-93 Code Case 1759-1 is acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants using this Case should also use Code Case 1711 for the design of pres sure relief valves.cated Without Welding, Section III, Division 1 Code Case N-249-13 is acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports.
 
The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
5.3.4 of the USNRC Standard Review Plan (NU REG-0800)
or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, it should be demonstrated by the owner that (1) the impact test results for the material meet Code re quirements and (2) the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corro sive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.N-265-1 05-19-85 05-19-88 03-14-91 03-14-94 N-438-3 07-27-92 N-440 02-23-87 12-11-89 12-11-92 Modified SA-487 Castings, Section III, Division 1, Class 1 UNS N08367 Material, Section III, Division 1, Class 2 and 3 Construction Use of 20Cr-18Ni-6Mo (Alloy UNS J93254) Castings, Class 2 and 3 Construction, Section III, Division 1 U N-443-1 03-08-89 High Yield Strength Cr-Mo 04-30-92 Steel, Class 1 Components, Section III, Division 1 N-205 05-15-78 07-13-81 07-13-84 07-13-87 08-14-90 08-14-93 N-246-2 05-25-83 07-30-86 07-30-89 07-27-92 N-249-13 05-11-94 Use of Ductile Iron SA-395 for Section III, Division 1, Class 3 Construction SB-169, Alloy C61400, Sec tion III, Division 1, Class 3 N-474-2 12-09-93 N-492-1 05-11-94 N-497-1 12-09-93 Additional Material for Subsec tion NF, Classes 1, 2, 3, and MC Component Supports Fabri-Design Stress Intensities and Yield Strength Values for UNS N06690 With a Minimum Spe cified Yield Strength of 35 ksi, Class 1 Components, Section III, Division 1 Grade 9 Titanium Alloy, Sec tion III, Division 1, Class 1, 2, and 3 Use of Fe-Ni-Cr-Mo-N (CN-3MN) Cast Materials, Sec tion III, Division 1, Class 2 and 3 Construction
1.85-4 b. Testing-oriented Code Cases (1) Code Case Involving Plates (2) Code Case Involving Bars and Forgings N-329 12-11-81 Examination of Bar Material, 12-05-84 Section III, Division 1, Class 1 12-05-87 12-03-90 12-03-93 (3) Code Case Involving Pipe and Tubes Code Case Involving General Usage 07-16-82 Use of Subsize Charpy V 05-19-85 Notch Specimens, Section 05-19-88 III, Division 1 03-14-91 03-14-94 1334-3 (N-2) 1335-10 (N-3-10)04-29-74 01-08-79 01-01-81 08-28-78 08-28-81 09-16-84 Requirements for Corrosion Resisting Steel Bars and Shapes, Section III Requirements for Bolting Materials, Section III N-5-1 12-13-82 Nickel Chromium Age Harden 12-13-85 able Alloys (Alloy X750), Section III, Division 1, Classes 1, 2, 3, MC, and CS 1345-2 (N-6) 1395-4 (N-9-4)03-09-72 Requirements for Nickel 03-01-79 Molybdenum-Chromium-Iron Alloys, Section III 01-08-79 SA-508, Class 2 Forgings with 07-01-82 Modified Manganese Content, Section III N-484-1 12-16-91 Real Time Radioscopic Ex amination of Welds, Class 1 Components, Section III, Divi sion 1 N-510 12-09-93 Borated Stainless Steel for Class CS Core Support Struc tures and Class 1 Components, Section III, Division 1 N-525 12-09-93 Design Stress Intensities and Yield Strength Values for UNS N06690 with a Minimum Speci fied Yield Strength of 30 Ksi, Class 1 Components, Section III, Division 1 2. ANNULLED CODE CASES Code Cases that were endorsed by the NRC in a prior version of this guide and were later annulled by action of the ASME should be considered as deleted from the list of acceptable Code Cases as of the date of the ASME action that approved the annulment.
 
Such Code Cases that were annulled on or after July 1, 1974, are listed in the following by number, effective dates, 4 and title.5 1141-1 08-31-61 Foreign Produced Steel 07-23-76 1332-7 (N-1-7)01-08-79 Requirements for Steel Forg 07-01-82 ings, Section III, Division 1 4 Earlier date-date Code Case was approved by ASME; later date-date Code Case was annulled.
 
Where more than two dates appear, the last date is the date that the Code Case was annulled.
 
The middle date (or dates) was the date of reaffirmation of the Code Case.  5 Code Cases 1401-1,1493-1, and 1599, which were listed in the original issue of this guide, were annulled by ASME action prior to July 1, 1974.1407-3 07-01-74 (N-10) 01-08-79 01-21-82 09-17-84 09-17-87 1412-4 11-03-75 01-01-77 Time of Examination for Classes 1, 2, and 3, Section III Vessels Modified High Yield Strength Steel for Section III, Division 1, Class 1 Vessels Code Case 1412-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.  The material given in the Inquiry section of the Code Case should be SA-508, Class 4b, instead of SA-508, Class 4.1414-5 (N-11-5)08-29-77 High Yield Strength Cr-Mo 08-29-80 Steel for Section III, Division 1, Class 1 Vessels Code Case 1414-5 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.  1423-2 03-09-72 Wrought Type 304 and 316 07-01-77 with Nitrogen Added, Sections I, III, VIII, Division 1 and 2 Code Case 1423-2 was acceptable subject to com pliance with the recommendations contained in Regu latory Guides 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," and 1.44, "Control of the Use of Sensitized Stainless Steel." 1.85-5 (4) N-351
1434-1 03-09-72 Postweld Heat Treatment of 01-01-78 SA-487 Class 8N Steel Cast ings, Section III cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.1456-2 (N-15)06-25-73 Substitution of Ultrasonic Ex 03-01-79 amination for Progressive Penetrant or Magnetic Particle Examinations of Partial Pene tration and Oblique Nozzle At tachment Welds, Section III 1474-1 10-29-71 (N-17) 01-08-79 01-21-82 01-21-85 01-21-88 01-21-91 1475-16 03-02-74 07-01-75 Integrally Finned Tubes for Section III Ferritic-Austenitic Stainless Steel Seamless Tubes for Sec tion III, Class 2 and 3 Construction
1498-1 11-06-72 SA-508-Class
2 and 3, Mini (N-22) 01-08-79 mum Tempering Temperature, 07-01-82 Section III 1515 03-09-72 Ultrasonic Examination of 07-01-77 Ring Forgings for Shell Sec tions, Section III, Class 1 Ves sels 1521-1 04-29-74 Use of H-Grades of SA-240, 01-01-78 SA-479, SA-336, and SA-358, Section III Code Case 1521-1 was acceptable subject to com pliance with the recommendations contained in Regu latory Guides 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," and 1.44, "Control of the Use of Sensitized Stainless Steel." 1527 06-26-727 Integrally Finned Tubes, Sec (N-26) 01-08-79 tion III 01-21-82 01-21-85 01-21-88 01-21-91 1528-3 11-03-75 High Strength Steel SA-508, 01-01-78 Class 2 and SA-541, Class 2 Forgings, Section III, Class 1 Components Code Case 1528-3 was acceptable subject to the following condition in addition to those conditions spe 6 Code Case was annulled on date as indicated, but the annulment wasfirst so indicated in Revision 12 of this guide.  7 Corrected Date.15296 06-29-72 07-01-73 1531 08-14-72 03-21-77 Materials for Instrument Line Fittings, Section III Electrical Penetrations, Special Alloys for Electrical Penetra tion Seals, Section III 1532 08-14-72 Section III, Class 3 Compo 01-01-78 nents Made of 8 Percent and 9 Percent Nickel Steel 1542-1 (N-33) 1557-3 (N-37-3)04-29-74 01-08-79 01-21-82 01-21-85 01-08-79 07-01-82 Type 403 Forgings or Bars for Bolting Material, Section III Steel Products Refined by Sec ondary Remelting, Section III and VIII, Division 1 and 2 1567 03-03-73 Testing Lots of Carbon and 01-01-78 Low Alloy Steel Covered Elec trodes, Section III 1568 03-03-73 Testing Lots of Flux Cored and 01-01-78 Fabricated Carbon and Low Alloy Steel Welding Elec trodes, Section III 1571 03-03-73 (N-41) 01-08-79 01-21-82 01-21-85 1578 06-25-73 (N-43) 01-08-79 07-01-82 1583 06-25-73 03-21-77 15876 08-13-73 12-31-75 1590 08-13-73 03-21-77 1602-1 04-29-74 12-31-74 Additional Material for SA-234 Carbon Steel Fittings, Section III SB-167 Nickel-Chromium-Iron (Alloy 600) Pipe or Tube, Sec ion III Use of 80-40 Carbon Steel Castings, Section III SA-508 Class 3 Forgings with 0.4/1.0 Ni for Section III and VIII, Division 2 Construction Chemical Analysis Variations, Section III Construction Use of SB-42 Alloy 122, SB-111 Alloys 122, 715 and 706, SB-171 Alloys 715 and 706 and SB-466 Alloys 706 and 715, Section III, Class 2 and 3 Components
1603 12-17-73 Toughness Tests When Cross 07-01-74 Section Limits Orientation and Location of Specimens 1.85-6 Cr-Ni-Mo-V
Bolting Material for Section III, Class 1 Compo nents 1608-1 12-17-73 Use of ASME SB-265, 03-21-77 SB-337, SB-338, SB-348, and SB-381, Grades 1, 2, 3, and 7 Unalloyed Titanium and ASTM B-363 Titanium Weld ing Fittings, Section III, Class 2 and 3 Components
1612 12-17-73 Use of Type 308 Stainless Steel (N-56) 07-01-78 Rod and Bar for Section III, Class 1, 2, 3, and CS Construc tion 1613 12-17-73 01-01-78 1615 12-17-73 01-01-78 16166 12-17-73 07-01-75 Use of SA-372 Class IV Forg ings, Section III Construction Use of A587-73, Section III, Class 3 Construction Ultrasonic Examination of Seamless Austenitic Steel Pipe, Section III, Class 1 Construc tion 16226 03-02-74 PWHT of Repair Welds in Car 01-01-76 bon Steel Castings, Section III, Class 1, 2, and 3 1625 03-02-74 12-31-74 1626-1 01-08-79 (N-65-1) 01-21-82 01-21-85 1634-2 08-13-76 (N-68) 07-01-78 16378 04-29-74 01-01-75 16456 08-12-74 01-01-76 Repair of Section III Class 2 and 3 Tanks Normalized and Tempered 1-1/4 Cr Low Alloy Steel Forg ings, Section I and Section III Use of SB-359 for Section III, Division 1, Class 3 Construc tion Effective Date for Compliance with NA-3700 of Section III Use of DeLong Diagram for Calculating the Delta Ferrite Content of Welds in Section III, Class 1, 2, and CS Construction
1648 08-12-74 SA-537 Plates for Section III, 07-01-76 Class 1, 2, 3, and MC Compo nents 16496 08-12-74 Modified SA 453-GR 660 for 01-01-76 Class 1, 2, 3, and CS Construc tion 8 Code Case 1637 was accepted only on a case-by-case basis.1605 11-05-73 11-20-78 03-17-80 1698 (N-92)06-30-757
11-20-78 07-13-81 Waiver of Ultrasonic Transfer Method, Section III, V, and VIII, Division 1 Code Case 1698 was acceptable subject to the fol lowing conditions in addition to those specified in the Code Case: The material from which the basic calibra tion block is fabricated should be of the same product form, alloy, and heat treatment as the material being ex amined. Alloys of equivalent P-number grouping may be used for the fabrication of calibration blocks if ad justments to signal height can be made to compensate for sound beam attenuation difference between the cal ibration block and the material under examination by following the transfer method procedure of T-535.1(d), Article 5, Section V, ASME B&PV Code, 1977 edition.
 
1713 08-11-75 Small Material Items, Section 12-31-75 III, Division 1, Class 1, 2, 3, CS and MC 1714-2 08-28-78 (N-102-2)
07-13-81 06-30-84 1722-1 01-08-79 (N-107-1)
01-08-82 Postweld Heat Treatment of P-1 Material, Section III, Class MC Vacuum, Carbon Deoxidized SA-508 Forgings, Section III, Division 1 1.85-7 1650 08-12-74 Use of SA-414 Grade C for 12-31-74 Class 2 and 3 Components, Section III, Division 1 1664 11-04-74 Use of Cr-Ni-Fe-Mo-Cu-Cb
03-21-77 Stabilized Alloy Cb-3 for Sec tion III Class 2 and 3 Construc tion 1666 11-04-74 Use of SB-12, Alloy 122 for 07-01-75 Class 2 and 3 Construction
1682-1 08-11-75 Alternate Rules for Material 12-31-75 Manufacturers and Suppliers, Section III, Subarticle NA-3700 16846 03-03-75 A637 Grade 718 for Bolting 01-01-76 Class 1 and 2 Construction
16906 04-28-75 Stock Materials for Section III 01-01-77 Construction, Section III, Divi sion 1 1691 04-28-75 Ultrasonic Examination in Lieu 01-01-78 of Radiography of Repair Welds for Vessels, Section III, Class 1
1747 (N-124) 1748 (N-125) 1754 (N-126) 1755-1 (N-127)03-01-76 01-08-79 07-13-81 07-13-84 07-13-87 Requirements for Martensitic Stainless Steel Forgings with 13% Chromium and 4% Nick el, Section III, Division 1 03-01-76 Low Carbon Austenitic Stain 07-01-78 less Steel Pipe Welded With Filler Metal, Section III, Divi sion 1, Construction
01-14-77 01-07-80 12-13-82 02-20-86 12-07-87 07-01-88 01-14-77 01-07-80 02-14-83 02-20-86 02-20-89 02-20-92 Hard Surfacing by the Spray Fuse Method, Section III, Class 1, 2, and 3 Construction Alternative Rules for Examina tion of Welds in Piping, Sec tion III, Class 1 and 2 Construction
1724 11-03-75 Deviation from the Specified (N-108) 07-01-78 Silicon Ranges in ASME Ma terial Specifications, Section III, Division 1, and VIII, Divi sion 1 and 2 1728 11-03-75 Steel Structural Shapes and 07-01-77 Small Material Products for Component Supports, Section III, Division 1 Construction
1740 12-22-75 Weld Metal Test, Section III, 07-01-76 Class 1, 2, 3, MC and CS 1741-1 01-14-77 Interim Rules for the Required 01-01-78 Number of Impact Tests for Rolled Shapes, Section III, Di vision 1, Subsection NF, Com ponent Supports 1742 03-01-76 Use of SB-75 Annealed Copper 07-01-76 Alloy 122, Section III, Divi sion 1, Class 2 Construction
1743 03-01-76 Use of SB-98 Cu-SiB Rod 07-01-76 CDA651 Section III, Division 1, Class 2 Components
1746 03-01-76 Leak Testing of Seal Welds, (N-123) 03-01-79 Section III, Division 1, Class 1, 2, and 3 Construction
1770 (N-139)08-13-76 Testing of Electroslag Wire and 01-01-79 Flux for Class 1, 2, 3, MC, and CS Construction, Section III, Division 1 1772 08-13-76 (N-140) 08-30-79 07-16-82 12-31-85 1773 08-13-76 07-01-77 Use of SA-453 Bolts in Service Below 800'F Without Stress Rupture Tests, Section III, Division 1 Use of Other Product Forms of Materials for Valves, Section III, Division 1 1777 08-13-76 Use of SA-106, Grade C in 07-01-77 Class MC Construction, Sec tion III, Division 1 1781 (N-147)1E 09-10-76 Use of Modified SA-487 Grade 07-01-78 CA6NM, Section III, Division 1, Class 1, 2, 3, MC or CS 1782 09-10-76 (N-148) 08-30-79 07-16-82 06-30-83 1787 09-10-76 01-01-78 1793 (N-156) 1794 (N-157) 1795 (N-158)01-14-77 01-07-80 02-14-83 02-14-86 01-14-77 01-07-80 01-07-83 01-14-77 07-01-78 Use of Copper-Nickel Alloy 962 for Castings, Section III, Division 1, Class 3 Construction Depth of Weld Repairs for Forgings, Section III, Division 1, Class 1, 2, 3, MC and CS Construction Structural Steel Rolled Shapes, Section III, Division 1, Class 2, 3, and MC Use of Seamless Al-Br, Alloy CDA 614 Pipe, Section III, Division 1, Class 3 Examination of Weld Repairs in Forgings, Section III, Divi sion 1, Class 1, 2, 3, MC and CS 1.85-8 1760 04-26-76 Maximum Dimensions for Iso 01-01-78 lated Pores in Welds--Class
1 Components, Section III, Divi sion 1 1766 04-26-76 Testing Requirements for 07-01-77 Welding Materials, Class 1, 2, 3, MC and CS Construction, Section III, Division 1 1767 04-26-76 Examination of Tubular Prod 01-01-77 ucts Without Filler Metal Class 1 Construction, Section III, Division 1
1798 01-14-77 Use of ASTM A352-75, 01-01-78 Grades LCA and LCC, Section III, Division 1, Class 1, 2, and 3 1810 03-03-77 Testing Lots of Carbon Steel 03-03-80 Solid, Bare Welding Electrode or Wire, Section III, Division 1, Class 1, 2, 3, MC, and CS 18199 03-23-77 Use of Type XM-19 for 01-01-78 Construction, Section III, Divi sion 1, Class 1, 2, 3 1819-110,11
03-23-77 (N-176-1)
03-23-80 08-25-80 08-25-83 1820 (N-177)03-23-77 03-17-80 02-14-83 .01-01-84 Use of Type XM-19 for Construction, Section III, Division 1, Class 1, 2, and 3 Alternative Ultrasonic Examination Technique, Section III, Division 1 N-178 05-25-77 Use of ASTM B271, CDA 01-01-80 954, Alloy 9C for Class 3 Construction, Section III, Divi sion 1 N-180 07-11-77 Examination of Springs for 07-01-78 Class 1 Component Standard Supports, Section III, Division 1 N-181 07-11-77 Steel Castings Refined by the 07-11-80 Argon Decarburization Pro cess, Section III, Division 1, Construction N-183 07-11-77 Use of Modified SA-182 Grade 01-01-80 F22 for Section III, Division 1, Class 1, 2 and 3 Construction N-190 08-29-77 Use of SA-455 for Class 3 07-01-78 Components, Section III, Divi sion 1 N-204 03-20-78 Use of Modified SA-508, Class 01-01-81 3, and SA-541, Class 3 for Sec tion III, Division 1, Class 1, 2, and 3 Construction N-206 03-20-78 03-16-81 06-30-83 N-207-1 03-19-79 01-21-82 01-21-85 Use of ASTM B151-75 Copper-Nickel Alloy 706 Rod and Bar for Section III, Division 1, Class 3 Construc tion Use of Modified SA-479 Type XM-19 for Section III, Divi sion 1, Class 1, 2, 3, or CS Construction N-223 11-30-78 Requirements for Stainless
11-20-81 Steel Precipitation Hardening, Section III, Division 1, Class MC N-224-1 05-11-81 04-05-84 04-05-87 04-05-90 Use of ASTM A500 Grade B and ASTM A501 Structural Tubing for Welded Attach ments for Section III, Class 2, 3, and MC N-225 11-20-78 Certification and Identification
01-01-81 of Material for Component Supports, Section III, Division 1 N-227 07-09-79 Examination of Repair Welds, 07-09-82 Section III, Class 2 and 3 Tanks N-242-1 04-10-80 05-06-83 06-30-84 Materials Certification, Section III, Division 1, Classes 1, 2, 3, MC, and CS Construction Code Case N-242-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Applicants should identify in their Safety Analysis Reports the components and sup ports for which the Code Case is being applied and should specify the respective paragraphs of the Code Case.9 This Code Case was reaffirmed as Case 1819-1. See Regulatory Position 2, Case 1819-1, for the effective dates.  1 0 Case 1819 (N-176) was annulled December 31,1977. However, itwas later reaffirmed to continue providing rules pertaining to external pres sure charts.  llCode Case N-176-1: The 3-23-80 is an annulment date. This Casewas allowed to expire on 3-23-80 because of an administrative error. It was reinstated on 8-25-80 with no technical changes. It is, therefore, con sidered to be in effect during that lapse in time. The 8-25-83 is the man datory annulment date. The Case did not appear in Revisions
18-21 of this guide because of the ASME administrative error.N-245 07-09-79 07-16-82 07-17-85 Use of ASTM B61-76 and B62-76 Copper Alloy Castings for Section III, Division 1, Class 3 Construction N-246 07-09-79 Use of SB-169, Alloy CA 614, 09-07-82 Section III, Division 1, Class 3 N-248 08-30-79 Alternative Reference Radio 07-01-80 graphs, Section III, Division 1, Classes 1, 2, 3, MC, and CS Construction
1.85-9 N-259 01-07-80 Ni-Cu-Al Bolting Material SB 02-14-83 164 Modified, Section III, 01-01-84 Division 1, Class 3 N-2651 2 01-07-80 Modified SA-487 Castings, 09-01-83 Section III, Division 1, Class 1 12-31-84 05-19-85 N-267 01-07-80 Double-Wall Radiography, 07-01-81 Section III, Division 1, Class 1 and 2 N-274 03-17-80 09-07-82 06-30-86 Alternative Rules for Examina tion of Weld Repairs for Section III, Division 1 Construction Code Case N-274 was acceptable subject to the fol lowing condition 1 3 in addition to those conditions spe cified in the Code Cas
 
====e. Paragraph ====
6 should be expand ed as follows: The ultrasonic examination procedures shall be proven by actual demonstration, to the satisfac tion of the Authorized Nuclear Inspector, that the pro cedures are capable of detecting unacceptable cracks according to Section XI requirements.
 
N-277 03-17-80 Use of Type XM-19 Austenitic
09-17-80 Stainless Steel for Section III, Division 1, Class MC Construction N-295 01-15-81 12-11-81 06-30-82 NCA-1140, Materials, Section III, Division 1 N-296 11-17-80 Welding Material, Section III, 12-01-83 Division 1 Construction N-298 11-17-80 Examination of Component
12-01-83 Supports, Section III, Division 1, Class 1, 2, 3, and MC N-299-1 07-18-85 02-23-87 Use of Nickel-Chromium Molybdenum-Columbium Alloy 625 Forgings, Section III, Division 1, Class 2 and Class 3 Components
1 2 Code Case N-265 was allowed to expire on 1-7-83 because of an ad ministrative error. It was reinstated on 9-1-83 with no technical changes. The Case is, therefore, considered in effect during that period of time. Again, Code Case N-265 was allowed to expire on 12-31-84 (mandatory annulment date). It was reinstated as N-265-1 on 5-19-85. Because of the circumstances and because there were no changes in the Code Case, the NRC considers that this Case was in ef fect during the period of 12-31-84 through 5-19-85.
 
1 3 The reason for the conditional acceptance of paragraph
6 is to make cer tain that there is a qualified ultrasonic testing procedure capable of de tecting small flaws and differentiating the small flaws from geometric reflectors.
 
This paragraph does not in any way alter the acceptance cri teria as specified in paragraph
3.N-310-1 08-14-81 Certification of Bolting Materi 07-01-82 als, Section III, Division 1, Class 1, 2, 3, MC and CS Code Case N-310-1 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: Each applicant who applies the Code Case should indicate in the referencing Safety Analysis Report (1) in what way the bolting does not meet NCA-3800 (or NA-3700), (2) where the bolting will be used in the plant, and (3) how it will be shown that the bolting material properties required by the Equipment Support Design Specification are present in the actual bolting material.
 
N-317 07-13-81 ASTM A276 Bar Section III, 07-01-82 Division 1 N-321-1 12-05-85 Use of Modified SA-249, 12-05-88 Grade TP 304, Section III, Di vision 1, Class 1 N-337-1 07-18-85 Use of ASTM B525-70 Grade 07-18-88 11, Type II, Sintered Austentic
03-14-91 Stainless Steel for Class 2, 3, 03-14-94 and MC Component Standard Supports, Section III, Divi sion 1 N-342 04-02-82 Use of SA-249 and SA-312 04-02-85 Type 317 Stainless Steel, Sec tion III, Division 1, Classes 1, 2, and 3 N-348 09-09-82 Use of SA-574 Socket Head 09-07-8514 Cap Screws, Section III, Divi sion 1 Code Case N-348 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants should justify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.
 
N-348-1 09-07-8514 Use of SA-574 Socket Head 02-20-86 Cap Screws, Section III, Divi 02-20-89 sion 1 Code Case N-348-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Applicants should justify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.
 
1 4 Code Case N-348 was annulled on 9-7-85. It was reinstated as N-348-1 on 2-20-86. Because of the circumstances and because there were no changes in the Code Case, the NRC considers that the Code Case was in effect during the period 9-7-85 through 2-20-86.1.85-10
N-348-2 08-14-90 Use of SA-574 Socket Head 08-14-93 Cap Screws, Section III, Divi sion 1 Code Case N-348-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Applicants should justify in their Safety Analysis Reports why use of these socket head cap screws will not result in early failure from stress corrosion cracking.
 
N-352-1 07-18-85 Use of SA-638 Grade 660 06-30-86 Forgings and Bars Below 700'F Without Stress Rupture Tests, Section III, Division 1 N-353 07-16-82 05-19-85 09-05-88 N-367 02-14-83 02-19-86 02-19-89 Marking of SA-354 Grade BD Bolting, Section III, Division 1 SA-372 Type V, Grade 1, Class B, Section III, Division 1 N-371-1 07-18-85 12CR-1W-1Mo-1/4V
Marten 07-18-88 sitic Stainless Steel Valve In ternals, Section III, Division 1 N-372 02-14-83 SB-163 Ni-Fe-Cr-Mo-Cu Alloy 12-31-83 825 (UNS N08825) Tubing, Section III, Division 1 N-378 10-28-83 Examination of Piping Support 10-28-8615 Material, Section III, Division 1, Class 1 N-379-1 07-18-85 07-18-88 03-14-91 07-18-91 N-388 07-25-83 07-30-86 02-23-87 Bimetallic Tubing Section III, Division 1, Class 1 Component Support Bolting, Section III, Division 1, Classes 2, 3, and MC N-398 02-20-84 Reporting of Charpy-V Notch 02-20-87 Test Results, Section III, Divi sion 1 Code Case N-398 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: The Code Case is not acceptable to steam generator or reactor coolant pump supports.
 
Applicants wishing to use this Code Case should indi cate in the Safety Analysis Report the component sup ports to which the case is applied for review on a case by-case basis.  1 5 The annulment date of 12-31-84 that was listed in Revisions
24 and 25 was in error. The annulment date should be 10-28-86.N-459 05-04-88 03-14-91 03-14-94 SA-508 Basic Oxygen-Ladle Furnace Process for Code Construction, Section III, Divi sion 1 N-470 03-08-89 Class MC Material Require 03-08-92 ments [NE-2121(c)], Section III, Division 1 N-475 12-11-89 Materials in Inventory, Section 12-11-92 III, Division 1 N-482 03-05-90 Direct Quenched Stainless Bar, 03-05-93 ASTM A 479-88b, Section III, Division 1 N-501 07-27-92 Alternative Rules to 12-31-93 NCA-3800, 1990 Addenda Section III, Division 1 3. REVISED CODE CASES Code Cases that were endorsed by the NRC in a prior version of this guide and were superseded by re vised Code Cases on or after July 1, 1974, should be considered as not endorsed as of the date of the ASME action that approved the revised version of the Code Cases. These Code Cases that are no longer endorsed are listed in the following by number, effective dates, 1 6 and title.1 7 1332-6 03-09-72 Requirements for Steel Forg 01-08-79 ings, Section III and VIII, Divi sion 2 1335-9 04-29-74 08-28-78 1337-9 04-29-74 04-28-75 1337-10 04-28-75 05-15-78 1344-5 04-29-74 (N-5) 01-08-79 01-21-82 12-13-82 Requirements for Bolting Materials Special Type 403 Modified Forgings or Bars, Section III Special Type 403 Modified Forgings or Bars, Section III Nickel-Chromium, Age-Har denable Alloys (Alloy X750), Section III 1358-5 11-03-75 High Yield Strength Steel, Sec (N-7) 01-08-79 tion III, Division 1, Class 1 01-21-82 Vessels 12-13-82 Code Case 1358-5 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.  1 6 Earlier date-date Code Case was approved by ASME; later date---date revision of Code Case was approved by ASME.  1 7 Code Cases 1334-2, 1337-7, 1344-3, 1484, 1521, and 1542, which were listed in the original issue of this guide, were revised by the ASME prior to July 1, 1974.1.85-11
1395-3 11-06-72 SA-508, Class 2 Forgings with 01-08-79 Modified Manganese Content, Section III or Section VIII, Di vision 2 1407-2 06-26-72 Time of Examination for Class 07-01-74 1, 2, and 3, Section III Vessels 1414-3 11-03-75 High Yield Strength Cr-Mo 03-01-76 Steel for Section III, Division 1, Class 1 Vessels Code Case 1414-3 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.  1414-4 03-01-76 High Yield Strength Cr-Mo 08-09-77 Steel for Section III, Division 1, Class 1 Vessels Code Case 1414-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The information required to be developed by Note 1 in the Code Case should be pro vided in each referencing Safety Analysis Report.  1484-1 04-29-74 SB-163 Nickel-Chromium-Iron
11-04-74 Tubing (Alloy 600) at a Speci fied Minimum Yield Strength of 40.0 Ksi, Section III, Class 1 1484-2 11-04-74 SB-163 Nickel-Chromium-Iron
08-13-76 Tubing (Alloy 600 and 690) at a Specified Minimum Yield Strength of 40.0 Ksi, Section III, Class 1 1484-3 (N-20)08-13-76 08-30-79 07-16-82 05-19-85 09-05-85 SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690) and Nickel-Iron-Chromium Alloy 800 at a Specified Mini mum Yield Strength of 40.0 Ksi, Section III, Division 1, Class 1 N-20-1 09-05-85 SB-163 Nickel-Chromium-Iron
12-07-87 Tubing (Alloy 600 and 690) and Nickel-Iron-Chromium Alloy 800 at a Specified Mini mum Yield Strength of 40.0 Ksi, Section III, Division 1, Class 1 N-20-2 12-07-87 SB-163 Nickel-Chromium-Iron
11-30-88 Tubing (Alloy 600 and 690) and Nickel-Iron-Chromium Alloy 800 at a Specified Mini-mum Yield Strength of 40.0 Ksi, and Cold Worked Alloy 800 at a Yield Strength of 47.0 Ksi, Section III, Division 1, Class 1 149218 10-29-71 Post Weld Heat Treatment, 03-03-75 Section I, III and VIII, Division 1 and 2 1557-2 12-17-73 Steel Products Refined by Sec 01-08-79 ondary Remelting
1618 03-02-74 Material for Core Support 03-03-75 Structures Section III, Subsec tion NG Code Case 1618 was acceptable subject to the fol lowing conditions in addition to those specified in the Code Case: a. Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.
 
b. Use of alloy ASTM A-564 Grade 631 is not accept able on a generic basis.  1618-1 03-03-75 Material for Core Support 03-01-76 Structures, Section III, Subsec tion NG Code Case 1618-1 was acceptable subject to the following condition in addition to those specified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.
 
1618-2 (N-60)03-01-76 Material for Core Support 01-08-79 Structures Section III, Division 01-21-82 1, Subsection NG 05-25-83 Code Case 1618-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition.
 
N-60-1 05-25-83 Material for Core Support 09-17-84 Structures, Section III, Divi sion 1 Code Case N-60-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition.
 
1 8 Code Case 1492 is no longer listed by ASME as a Section III Code Case and is therefore deleted from the acceptable listing 1.85-12 L
N-60-2 09-17-84 Material for Core Support 09-05-85 Structures, Section III, Divi sion 1 Code Case N-60-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition.
 
For SA-479 material, the maximum yield strength should not exceed 90,000 psi in view of the susceptibility of this material to environmental cracking.
 
N-60-3 09-05-85 Material for Core Support 07-27-88 Structures, Section III, Divi 05-13-91 sion 1 Code Case N-60-3 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition.
 
For SA-479 material, the maximum yield strength should not exceed 90,000 psi in view of the susceptibility of this material to environmental cracking.
 
N-60-4 05-13-91 Material for Core Support 02-15-94 Structures, Section III, Divi sion 1 Code Case N-60-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition.
 
The maximum yield strength of strain-hardened austenitic stainless steel should not ex ceed 90,000 psi in view of the susceptibility of this ma terial to environmental cracking.
 
1626 03-02-74 Normalized and Tempered 01-08-79 1-1/4 Cr Low Alloy Steel Forg ings, Section 1, Section III, and Section VIII, Division 1 and 2 1634 07-01-74 Use of SB-359 for Section III, 08-12-74 Class 3 Construction
1634-1 08-12-74 Use of SB-359 for Section III, 08-13-76 Class 3 Construction
1644 08-12-74 Additional Materials for Com 04-28-75 ponent Supports Section III, Subsection NF, Class 1, 2, 3, and MC Construction Code Case 1644 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: The maximum measured ulti mate tensile strength of the component support material should not exceed 170 Ksi.  1644-1 04-28-75 Additional Materials for Com 06-30-75 ponent Support-Section III, Subsection NF, Class 1, 2, 3, and MC Construction Code Case 1644-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi.  1644-2 06-30-75 Additional Materials for Com 11-03-75 ponent Supports-Section III, Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi.  1644-3 11-03-75 Additional Materials for Com 03-01-76 ponent Supports--Section III, Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-3 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi.  1644-4 03-01-76 Additional Materials for Com 08-13-76 ponent Supports and Alternate Design Requirements for Bolted Joints, Section III, Divi sion 1, Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-4 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking.
 
Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by he applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub-1.85-13 ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
 
1644-5 08-13-76 Additional Materials for Com 03-03-77 ponent Supports and Alternate Design Requirements for Bolted Joints, Section III, Divi sion 1, Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-5 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking.
 
Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
 
1644-6 03-03-77 Additional Materials for Com 11-21-77 ponent Supports and Alternate Design Requirements for Bolted Joints, Section III, Divi sion 1, Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-6 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking.
 
Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub j ect to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
 
1644-7 11-21-77 Additional Materials for Com (N-71-7) 05-15-78 ponent Supports, Section III, Division 1, Subsection NF, Class 1, 2, 3 and MC Compo nent Supports Code Case 1644-7 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking.
 
Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
 
1644-8 05-15-78 Additional Materials for Com (N-71-8) 01-07-80 ponent Supports, Section III, Division 1, Subsection NF, Class 1, 2, 3 and MC Compon ent Supports Code Case 1644-8 was acceptable subject to the following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten sile strength (UTS) of the component support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress cor rosion cracking.
 
Certain applications may exist where a UTS value of up to 190 Ksi could be considered accept able for a material and, under this condition, the Design Specification should specify impact testing for the ma terial. For these cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not sub ject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.1.85-14 I
1644-9 01-07-80 Additional Materials for Com (N-71-9) 05-11-81 ponent Supports Fabricated by Welding, Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component Supports Code Case 1644-9 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: In the last sentence of para graph 5.3, reference should be made to paragraph
4.5.2.2, "Alternate Atmosphere Exposure Time Peri ods Established by Test," of the AWS D. 1.1 Code for the evidence presented to and accepted by the Autho rized Inspector concerning exposure of electrodes for longer periods of time.N-71-10 05-11-81 06-17-82 Additional Materials for Com ponent Supports Fabricated by Welding, Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component Supports Code Case N-71-10 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup port material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking.
 
Certain applications may exist where a UTS value of up to 190 Ksi could be con sidered acceptable for a material and, under this condi tion, the Design Specification should specify impact testing for the material.
 
For these cases, it should be de monstrated by the applicant that (1) the impact test re sults for the material meet code requirements and (2) the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the ma terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
5.3, reference should be made to paragraph
4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time.N-71-11 06-17-82 02-14-83 Additional Materials for Com ponent Supports Fabricated by Welding, Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component Supports Code Case N-71-11 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup port material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking.
 
Certain applications may exist where a UTS value of up to 190 Ksi could be con sidered acceptable for a material and, under this condi tion, the Design Specification should specify impact testing for the material.
 
For these cases, it should be de monstrated by the applicant that (1) the impact test re sults for the material meet code requirements and (2) the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the ma terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
5.3, reference should be made to paragraph
4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time.  N-71-12 02-14-83 Additional Materials for Comi 02-20-84 ponent Supports Fabricated by Welding, Section III, Division 1, Class 1, 2, 3, and MC Code Case N-71-12 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking.
 
Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material.
 
For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that (a) a corrosive environment is not present and (b) the component that contains the materi al has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
5.3, reference should be made to paragraph
4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of time. The provisions of paragraph
4.3 are not accept able on a generic basi
 
====s. Paragraph ====
16.2.2 is not accept-1.85-15 able as written and should be replaced with the follow ing: When not exempted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A materi al it shall be at least 1000'F (540'C) and shall not exceed 1150'F (6200C) for Class 1 and Class 2 mate rial and 1175°F (640'C) for Class 3 material.
 
The new holding time at temperature for weld thickness (nomi nal) shall be 30 minutes for 1/2 inch or less, I hour per inch for thickness over 1/2 inch to 5 inches, and 5 hours plus 15 minutes for each additional inch over 5 inches.  N-71-13 02-20-84 Additional Materials for Sub 12-05-85 section NF, Classes 1, 2, 3 and MC Component Supports Fab ricated by Welding, Section III, Division 1 Code Case N-71-13 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking.
 
Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material.
 
For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that (a) a corrosive environment is not present and (b) the component that contains the mate rial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
5.3, reference should be made to paragraph
4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of tim
 
====e. Paragraph ====
16.2.2 is not acceptable as written and should be replaced with the following:
When not ex empted by 16.2.1 above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F (6200C) for Class 1 and Class 2 material and 1175°F (6400C) for Class 3 material.
 
The new holding time at temperature for weld thickness (nominal)
shall be 30 minutes for 1/2 inch or less, 1 hour per inch for thick ness over 1/2 inch to 5 inches, and 5 hours plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap-ply only to piping supports and not to Class 1, 2, and 3 component supports.
 
The fracture toughness of Classes 1, 2, and 3 component supports shall be characterized in accordance with paragraph
5.3.4 of the USNRC Stan dard Review Plan (NUREG-0800)
or on a case-by-case basis.  N-71-14 12-05-85 Additional Materials for Sub 12-16-86 section NF, Classes 1, 2, 3 and MC Component Supports Fab ricated by Welding, Section III, Division 1 Code Case N-71-14 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in view of the sus ceptibility of high-strength materials to brittleness and stress corrosion cracking.
 
Certain applications may ex ist where a UTS value of up to 190 Ksi could be consid ered acceptable for a material and, under this condition, the Design Specification should specify impact testing for the material.
 
For these cases, it should be demon strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma terial is not subject to stress corrosion cracking by vir tue of the fact that(a) a corrosive environment is not present and (b) the component that contains the materi al has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
5.3, reference should be made to paragraph
4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D. 1.1 Code for the evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of tim
 
====e. Paragraph ====
16.2.2 is not acceptable as written and should be replaced with the following:
When not ex empted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F (620'C) for Class 1 and Class 2 material and 1175"F (640'C) for Class 3 material.
 
The new holding time at temperature for weld thickness (nominal)
shall be 30 minutes for 1/2 inch or less, 1 hour per inch for thick ness over 1/2 inch to 5 inches, and 5 hours plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap ply only to piping supports and not to Class 1, 2, and 3 component supports.
 
The fracture toughness of Classes 1, 2, and 3 component supports shall be characterized in accordance with paragraph
5.3.4 of the USNRC Stan-1.85-16 dard Review Plan (NUREG-0800)
or on a case-by-case basis.  N-71-15 12-16-86 Additional Materials for Sub 12-16-89 section NF, Classes 1, 2 3 and 02-12-93 MC Component Supports Fab ricated by Welding, Section III, Division 1 Code Case N-71-15 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup port material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion cracking.
 
Certain applications may exist where a UTS value of up to 190 Ksi could be con sidered acceptable for a material and, under this condi tion, the Design Specification should specify impact testing for the material.
 
For these cases, it should be de monstrated by the applicant that (1) the impact test re sults for the material meet code requirements and (2) the material is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the ma terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of paragraph
5.3, reference should be made to paragraph
4.5.2.2, "Alter nate Atmosphere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for evidence pres ented to and accepted by the Authorized Inspector con cerning exposure of electrodes for longer periods of tim
 
====e. Paragraph ====
16.2.2 is not acceptable as written and should be replaced with the following:
When not ex empted by 16.2.1, above, the postweld heat treatment shall be performed in accordance with NF-4622 except that for ASTM A-710 Grade A material, it shall be at least 1000'F (540'C) and shall not exceed 1150'F (620'C) for Class 1 and Class 2 material and 1175°F (640'C) for Class 3 material.
 
The new holding time at temperature for weld thickness (nominal)
shall be 30 minutes for 1/2 inch or less, 1 hour per inch for thick ness over 1/2 inch to 5 inches, and 5 hours plus 15 min utes for each additional inch over 5 inches. The fracture toughness requirements as listed in this Code Case ap ply only to piping supports and not to Class 1, 2, and 3 component supports.


The fracture toughness of Classes 1,2, and 3 component supports shall be characterized in accordance with paragraph
Most Code Cases a~e even-tually superseded by revision to the Code and then are annulled by action of the ASNIE Council.The Code Cases listed in this guide are limited strictly to those applicable to Section III which are oriented toward materials and testing.All published Code Cases in the area of materials and testing which are applicable to Section IIl of the Code and were in effect on November 5. 1973 were reviewed for inclusion in this guide. Code Cases which were annulled by ASME Council between the November 5, 1973, and the March 2, 1974, Council meetings are not included in the listing. Code Cases which are not listed herein are either not endorsed or will require supplementary provisions on an individual basis to attain endorsement status.The endorsement of a Code Case by this guide constitutes acceptance of its technical position for USAEC REGULATORY
5.3.4 of the USNRC Stan dard Review Plan (NUREG-0800)
GUIDES Copies of published guides may be oblaired by request indicating the division$desired to the US. Atomic Energy Commission.
or on a case-by-case basis.1682 01-29-75 Alternate Rules for Material 08-11-75 Manufacturers and Suppliers, Section III, Subarticle NA-3700 1714 08-11-75 Postweld Heat Treatment of 07-11-777 P-1 Material, Section III, Class MC 1714-1 07-11-777 (N-102-1)
08-28-78 Postweld Heat Treatment of P-1 Material, Section III, Class MC 1722 11-03-75 Vacuum, Carbon Deoxidized
01-08-79 SA-508 Forgings, Section III, Division 1, and VIII, Division 1 and 2 1741 12-22-75 Interim Rules for the Required 01-14-77 Number of Impact Tests for Rolled Shapes, Section III, Di vision 1, Subsection NF, Com ponent Supports 1755 04-26-76 Alternative Rules for Examina 01-14-77 tion of Welds in Piping, Class 1 and 2 Construction, Section III, Division 1 1759 08-13-76 Material for Internal Pressure 05-15-78 Retaining Items for Pressure Relief Valves, Section III, Di vision 1, Class 1, 2, and 3 Code Case 1759 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants using this Case should also use Code Case 1711 for the design of pres sure relief valves.  N-188 08-29-77 Use of Welded Ni-Fe-Cr-Mo-Cu
05-15-78 (Alloy 825) and Ni-Cr-Mo-Cb (Alloy 625) Tubing, Section III, Division 1, Class 3 N-207 03-20-78 Use of Modified SA-479 Type 03-19-79 XM-19 for Section 1II, Divi sion 1, Class 1, 2, or 3 Construction N-224 11-20-78 Use of ASTM AO00 Grade B 05-11-81 and ASTM A501 Structural Tubing for Welded Attach ments for Section III, Class 2 and 3 Construction N-242 04-12-79 Materials Certification, Section 04-10-80 III, Division 1, Classes 1, 2, 3, MC, and CS Construction
1.85-17 Code Case N-242 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: Applicants should identify the components and supports requiring the use of para graphs 1.0 through 4.0 of the Code Case in their Safety Analysis Reports.


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


The frac-ture toughness of Classes 1, 2, and 3 component sup ports should be characterized in accordance with para graph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800)
D.C. 70545.Regulatory Guides are issued to describe and rnaki availlble to the public Attention:
or on a case-by-case basis. N-249-5 09-17-84 Additional Material for Sub 04-08-85 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 The fracture toughness requirements as listed in Code Case N-249-5 apply only to piping supports and not to Classes 1, 2, and 3 component supports.
Director of Regulatory Standards.


The frac ture toughness of Classes 1, 2, and 3 component sup ports should be characterized in accordance with para graph 5.3.4 of the USNRC Standard Review Plan (NUREG-0800)
Comments and suggestions or methods acceptable to the AEC Regulatory staff of Imlemnenting specific parts of Impyrovements in the"e guides ate o encouraged and should be sent to the Secretary the Commission'%
or on a case-by-case basis.  N-249-6 04-08-85 Additional Material for Sub 09-05-85 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-6 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports.
regulations, to delineate techniqutus .ved by the staff in of the Commission.


The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
US. Atomic Energy Commission, Washington, D.C. 20545, evaluating specific problems or postulated accidents, ot to provide guidance to Attention:
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
Chief. Public Proceedings Statf.apptlicants.
(5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.


N-249-7 09-05-85 Additional Material for Sub 12-05-85 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-7 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports.
flegulatory Guides are not iubstitutes for regulations and compliance with them is not required.


The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
Methods end solutions dilffeent from those set out in The guide% Ire Issued In the following ten broad divisiont:
5.3.4 of the USNRC Standard Review Plan (NUREG-1.85-18
the will be acceptable if they provide a bosh for the findings requisite to the Issuence or continuance of a permit or license by the Commission.
0800) or on a case-by-case basis. The following is to be added to paragraph
(5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.


N-249-8 12-05-85 Additional Material for Sub 12-16-86 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-8 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports.
1. Power Reactors 6. Products 2. Reseercts and Test Reactors;


The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
===7. Transportation===
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
3. Fuels end Materials Facilities
(5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.
8. Occupational Health Published guides will be revised periodically, at appropriate, to accommodlate
4. Environmental and Siting 9. Antitrust Review commants and to reflect new information or experlence.


N-249-9 12-16-86 Additional Material for Sub 05-06-89 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-9 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports.
5. Materials aid Plant Protection
10. General applications not precluded by regulatory or other requirements or by the recommendations in this or other regulatory.


The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
guides. Contingent endorsement is indicated in Regulatory Position C.I.a for specific cases; however it is the responsibility of the user to make certain that no regulatory requirements are violated and that there* are no conflicts with other recommended limitations resulting from Code Case usage.The acceptance or endorsement by the Regulatory staff applies only to those Code Cases or Code Cc".e revisions with the date of "Council Approval" as shown in the Regulatory Position of this guide. Earlier or later revisions of a Code Case are not endorscd by thi"s guide.New Code Cases as they are issued or future revisions of existing Code Cases will require evaluation by the Regulatory staff to determine if they qualify for inclusion in the approved list. Because of the continuing change in the status of Code Cases, it is planned that tids guide will require periodic updating to accommodate new Code Cases and any revisions of existing Code Cases.C. REGULATORY
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
POSITION I. The Section III ASME Code Cases 2 listed in the following by number, title, and date of Council approval are acceptable to the Regulatory staff for application in the construction of components for water-cooled nu-clear power plants. Their use is acceptable within the limitations stated in the "Inquiry" and "Reply" sections of each individual code case, such Regulatory or other requirements as may exist, and the additional limitations recommended by the Regulatory.
(5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro-sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.


N-249-10 05-06-89 Additional Material for Sub 05-13-91 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-10 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports.
staff given with the individual code cases in the list. The categorization of Code Cases is intended to facilitate the Code Case listing and is not intended to indicate a limitation on its usage.a. Materials-Oriented Code Cases with Title and Date of Council Approval: (1) Code Cases involving plate: 1141-1 8/31/61 Foreign Produced Steel 1401-1 3/9172 Welding Repairs to Cladding of Section III Components After Final Post-Weld Heat Treatment 1492 10/29/71 Post-Weld Heat Treatment Sec-tions 1, 111, and ViII, Division I and 2 1493-1 8/14/72 Post-Weld Heat Treatment, Sec.tion III 1571 3/3/73 Additional.


The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
Material for SA-234 Carbon Steel Fittings, Section Ill*2 A numerical listing of the Code Cases appears in the Appendixc.
5.3.4 of the USNRC Standard Review Plan (NUREG 0800) or on a case-by-case basis. The following is to be added to paragraph
(5) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.


N-249-11 05-13-91 Additional Material for Sub 02-12-93 section NF, Classes 1, 2, 3 and MC Component Supports fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-11 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: The fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports.
(2) Code Cases involving pipe and tubes: 1423-2 3/9/72 Wrought Type 304 and 316 with Nitrogen Added, Sections 1, 111, VIII, Divisions I and 2 This Code Case is acceptable subject to the conditions established in Regulatory Guides 1.31,"Control of' Stainless Steel Welding," and 1.44,"Control of the Use of Sensitized Stainless Steel." 1474-1 10/29/71 Integrally Finned Tubes for Sec-tion III 1484 8/4/7 1 SB-163 Nickel-Chromium-Iron Alloy Tubing at a Specified Minimum Yield Strength of 40,000 psi, Section III 1527 6/6/72 Integrally Finned Tubes, Section IlI 1529 6/26/72 Materials .or Instrument Lind Fittings, Sectw-n III 1578 6/25/72 SB-167 Nickel-Chromium Iron (Alloy 600) Pipe o; Tube, Sec-tion III 1599 8/23/73 ASTM A-234-73 Fittings V.r use in Section 111, Classes 1, 2 and 3 Construction
(3) Code Cases involving bars and forgings: 1332-6 3/9/72 Requirements for Steel Forgings, Section III and VIII, Division 2.1334-2 1/14/72 Requirements tor Corrosion- Resisting Steel Bars and Shapes.Section 111 1337.7 8/13/73 Requirements for Special Type 403 Modified Forgings or Bars, Section III 1395-3 11/6/72 SA-508, Class 2 Forgings with Modified Manganese Content, Section III or Section VIII, Divi-sion 2 1498-1 11/6/72 SA-508--Class
2, Minimum Tem-pering Temperature, Section III 1542 Not dtd Requirements for Type 403 Modified Forgings or Bars for Bolting Material, Section III 1587- 8/13/73 SA-508--Class
3 Forgings with 0.4/i.0 Ni for Section III and VIII, Division 2 Construction
1605 11/5/73 Cr-Ni-Mo-V
Bolting Material for Section 1II, Class 1 Components
(4) Code Cases involving general usage: 1344-3 12/18/72 Requirements for Nickel-Chromium, Age-Hardenable Alloys, Section III I 1.85-2
1345-2 3/9/72 Requirements for Nickel.Molybdenum-Chromium-Iron Alloys, Section III 1434-1 3/9/72 Post-Weld Heat Treatment of SA-487 Class 8N Steel Castings, Section III, Classes I and 2 1521 5/1/72 Use of H-Grades of SA-240, SA-479, SA-336, and SA-358, Section III This Code Case is acceptable subject to the conditions established in Regulatory Guides 1.31,"Control of Stainless Steel Welding," and 1.44,"Control of the Use ot'Sensitized Stainless Steel." 1531 8/14/72 Electrical Penetrations, Special Alloys For Electrical Penetration Seals, Section 111 1532 8/14/72 Section IIl, Class 3 Components Made of 8 Percent and 9 Percent Nickel Steel 1557-2 12/17/73 Steel Products Refined by Secondary Melting 1567 3/3/73 Testing Lots of Carbon and Low Alloy Steel Covered Electrodes, Section III 1568 -3/3/73 Testing Lots of Flux Cored mnd Fabricated Carbon and Low Alloy Steel Welding Electrodes.


The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
Section Ill 1583 6/25/73 Use of 80-40 Carbon Steel Cast-ings 1590 8/13/73 Chemical Analysis Variaitiks.
5.3.4 of the USNRC Standard Review Plan (NUREG 0800) or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, it should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.1.85-19 N-249-12 02-12-93 Additional Material for Sub 05-11-94 section NF, Classes 1, 2, 3, and MC Component Supports Fab ricated Without Welding, Sec tion III, Division 1 Code Case N-249-12 was acceptable subject to the following conditions in addition to those conditions specified in the Code Case: the fracture toughness re quirements apply only to piping supports and not to Classes 1, 2, and 3 component supports.


The fracture toughness of Classes 1, 2, and 3 component supports should be characterized in accordance with paragraph
Section III Construction b. Testing-Oriented Code Cases wi'!i Title and Date of Council Approval: (I) Code Cases involving plates: 1407-2 6/26/72 Time of Examination for Classes 1, 2. and 3 Section Ill Vessels 1456-2 6/25/73 Substitution of Ultrasonic Ex-amination for Progressive Pene.trant or Magnetic Particle Examinations of Partial Penetra-tion and Oblique Nozzle Attach-ment Welds, Section III (2) Code Cases involving bars and forgings: 1515 3/9172 Ultrasonic Examination of Ring Forgings for Shell Sections, Sec-tion III, Class I Vessels.2. Code Cases that are annulled by action of the ASME Council should be considered as deleted from the approved list as of the date of the ASME Council action.
5.3.4 of the USNRC Standard Review Plan (NUREG 0800) or on a case-by-case basis. The following is to be added to paragraph (e) of the Case: For these cases, is should be demonstrated by the owner that (1) the im pact test results for the material meet Code require ments and (2) the material is not subject to stress corro sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained loads in service.N-2651 9 01-07-80 09-01-83 12-31-84 05-19-85 N-299 11-17-80 11-28-83 07-18-85 N-321 07-13-81 07-13-84 12-05-85 N-337 04-02-82 05-19-85 07-18-85 Modified SA-487 Castings, Section III, Division 1, Class 1 Use of Nickel-Chromium Molybdenum-Columbium Alloy 625 Forgings, Section III, Division 1, Class 2 and Class 3 Components Use of Modified SA-249, Type 304 for Section III, Division 1, Class 1 Construction Use of ASTM B525-70 Grade II, Type II, Sintered Austenitic Stainless Steel for Class 2, 3, and MC Component Standard Supports, Section III, Division 1 N-352 07-16-82 05-19-85 07-18-85 Use of SA-638 Grade 660 Forgings and Bars Below 7000 F Without Stress Rupture Tests, Section III, Division 1 N-370 02-14-83 Modified SA-705 Grade 07-18-85 XM-13 Forgings, Section III, Division 1 N-370-1 07-18-85 Modified SA-705 Grade 12-05-85 XM-13 Forgings, Section III, Division 1 N-371 02-14-83 12 Cr-1W-lMo-1/4V
Marten 07-18-85 sitic Stainless Steel Valve In ternals, Section III, Division 1 N-379 04-04-83 Bimetallic Tubing Section III, 07-18-85 Division 1, Class 1 N-418 12-05-84 Use of Seamless Ni-Fe-Cr-Mo
07-30-86 Cu Low Carbon (UNS N08028 and UNS N08904) Tubing, Section III, Division 1, Classes 2 and 3 N-438 02-23-87 Fe-24.5Ni-21Cr-6.5 Mo-0.2N 03-08-89 (Alloy UNS N08367) Seamless and Welded Pipe, Tube, Plate, Bar, Fittings, and Forgings, Class 2 and 3 Construction, Section III, Division 1 N-438-1 03-08-89 03-05-90 Fe-24.5Ni-21Cr-6.5Mo-0.2N (Alloy UNS N08367) Seamless and Welded Pipe, Tube, Plate, Bar, Fittings, and Forgings, Class 2 and 3 Construction, Section III, Division 1 N-438-2 03-05-90 UNS N08367 Material, Sec 07-27-92 tion III, Division 1, Class 2 and 3 Construction N-441 02-23-87 12-11-89 11-25-92 Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2 and 3 Construction, Section III, Division 1 1 9 Code Case N-265 was allowed to expire on 1-7-83 because of an ad ministrative error. It was reinstated on 9-1-83 with no technical changes. The Case is, therefore, considered in effect during that period of time. Again, Code Case N-265 was allowed to expire on 12-31-84 (mandatory annulment date). It was reinstated as N-265-1 on 5-19-85. Because of the circumstances and because there were no changes in the Code Case, the NRC considers that this Case was in ef fect during the period of 12-31-84 through 5-19-85.N-443 05-07-87 High Yield Strength Cr-Mo 03-08-89 Steel, Class 1 Components, Section III, Division 1 N-466 03-08-89 Modified 9Cr-iMo Material 04-30-90 Section III, Division 1, Classes 1, 2, and 3 1.85-20 L
N-474 05-06-89 Design Stress Intensities and 03-05-90 Yield Strength Values for Alloy 690 With a Minimum Yield Strength of 35 ksi, Class 1 Components, Section III, Divi sion 1 N-474-1 03-05-90 03-05-93 12-09-93 Design Stress Intensities and Yield Strength Values for UNS N06690 With a Minimum Spe cified Yield Strength of 35 ksi, Class 1 Components, Section III, Division 1 N-492 12-03-90 Grade 9 Titanium Alloy, Sec 05-11-94 tion III, Division I, Class 1, 2, and 3 N-497 05-13-91 Use of Fe-Ni-Cr-Mo-N
12-09-93 (CN-3MN) Cast Materials, Section III, Division 1, Class 2 and 3 Construction


===4. UNACCEPTABLE ===
===0. IMPLEMENTATION===
CODE CASES Code Cases for Class 1 components that are not on the approved list of this guide (paragraph C.1) or other regulatory guides, or for which authorization by the Commission has not been granted, are not acceptable for Class 1 components.
The following guidance is provided for the implemen-tation of Section III ASME Code Cases involving materials and testing.1. The effective date of this guide is July 1, 1974.2. This listing of Code Cases is applicable after the effective date of this guide unless a particular Code Case has been annulled by action of the ASME Council.3. Components ordered to a specific version of a Code Case before the effective date of this guide need not be changed because a subsequent revision to the Code Case is listed as the approved version in this guide.4. Code Cases on the approved list may be applied to components that were in process of construction prior to the effective date of this guide within the limits specified in the Code Case and applicable regulations or recommended in other regulatory guides.5. Code Cases for Class I components which are not on the approved list of this guide or other regulatory guides, or for which authorization by the Commission has not been granted, are not acceptable on a generic basis for Class I components.


Code Cases for other classes of components that are not on the approved list of this guide (paragraph C.1) or other regulatory guides should be considered not acceptable on a generic basis.
Special autho'ization may be granted for individual cases upon special request to the Commission.


==D. IMPLEMENTATION==
6. Code Cases for other Classes of components which are not on the approved list of this guide or other regulatory guides, or for which authorization by the Commission has not been granted, should not be considered acceptable on a generic basis. Special authori-zation may be granted for individual cases upon special request to the Commission.
The purpose of this section is to provide informa tion to applicants regarding the use of this regulatory guide.  1. Except for those Code Cases that have been an nulled by action of the ASME, the NRC staff has found the Code Cases listed in the final version of this regulatory guide under Regulatory Position 1 acceptable for appropriate use. Other Code Cases may be considered for use in accordance with foot note 6 of the Codes and Standards rule, 10 CFR 50.55a.  2. Components ordered to a specific version of a Code Case need not be changed because a subsequent re vision of the Code Case is listed as the approved version in this guide.  3. Components ordered to a Code Case that was pre viously approved for use need not be changed be cause the Code Case has been subsequently an nulled. 4. Code Cases on the approved list may be applied to components that were in the process of construc tion prior to the effective date of the Code Case within the limits specified in the Code Case and ap plicable regulations or recommended in other regu latory guides.1.85-21 APPENDIX NUMERICAL
LISTING OF CODE CASES N-4-11 (1337-11)
N-294 N-443-1 N-7-1 N-329 N-466-1 N-20-3 N-351 N-469 N-60-5 N-370-2 N-474-2 N-71-16 N-404 N-484-1 N-131-1 (1759-1) N-418-1 N-492-1 N-188-1 N-438-3 N-497-1 N-205 N-439 N-502 N-246-2 N-440 N-510 N-249-13 N-441-1 N-525 N-265-1 1.85-22 VALUE/IMPACT
STATEMENT A draft value/impact statement was published with the draft of this guide when it was published for public comment (Task DG-1049, May 1997). No changes were necessary, so a separate value/impact statement for Regulatory Guide 1.85 has not been prepared.


A copy of the draft value/impact statement is available for inspection or copying for a fee in the NRC's Public Document Room at 2120 L Street NW., Washington, DC, under Task DG-1049.1.85-23}}
1.85-3 APPENDIX Numerical Listing of Code Cases 1141-1 1515 1332-6 1521 1334-2 1527 1337-7 1529 1344-3 1531 1345-? 1532 1395-3 1542 1401-1 1557-2 1407-2 1567 1423-2 1568 1434-1 1571 1456-2 1578 1474-1 1583 1484 1587 1492 1590 1493-1 1599 1498-1 1605 0 1.85-4}}


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Revision as of 20:52, 12 October 2018

Code Case Acceptability ASME Section Iii Materials
ML13350A327
Person / Time
Issue date: 06/30/1974
From:
US Atomic Energy Commission (AEC)
To:
References
RG-1.085
Download: ML13350A327 (4)
v • d • e


June 1974 U.S. ATOMIC ENERGY COMMISSION

REGULATORY

DIRECTORATE

OF REGULATORY

STANDARDS REGULATORY

GUIDE 1.85 CODE CASE ACCEPTABILITY

ASME SECTION III MATERIALS GUIDE 0

A. INTRODUCTION

g Section 50.55a, "Codes and Standards," of 10 CFR Part 50, "Licensing of Production and Utilization Facilities," requires, in part, that components of the reactor coolant pressure boundary be designed, fabri.cated, erected, and tested in accordance with the requirements for Class I components of Section III,"Nuclear Power Plant Components,"'

of the American Society of Mechanical Engineers (ASME) Boiler and Vessel Code or equivalent quality standards.

Footnote 6 to Section 50,55a states that the use of specilic Code Cases may be authorized by the Commis-sion upon request pursuant to §50.55a(aX2Xii)

which requires that proposed alternatives to the described requirements or portions thereof provide an acceptable level of quality and safety. General Design Criterion I,"Quality Standards and Records." of Appendix A."General Design Criteria for Nuclear Power Plants." to 10 CFR Part 50 requires, in part, that structures.

systems, and components important to safety be de.signed, fabricated, erected, and tested to quality stan.dards commensurate with the importance of the safety function to be performed.

Where generally recognized codes and standards are used, Criterion I requires that they be identified and evaluated to determine their applicability, adequacy, and sufficiency and be supple-mented or modified as necessary to assure a quality product in keeping with the required safety functio

n. Criterion

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

Appen-dix B. "Quality Assurance Criteria for Nuclear Power l Copics may be obtained from the American Society of Mechanical Engineers, United Engineering Center, 345 East 47th Street, New York, N.Y. 1007.Plants and Fuel Reprocessing Plant-,," to 10 CFR Part 50.requires, in part, that measures be established for tihe control of special processing of materials and thai proper testing be performed.

This regulatory guide lists those Section III ASME Code Cases oriented to materials and testing which are generally acceptable to the AEC Regulatory staff for implementation in the Ilcnsing of light-water-cooled nuclear power plants.

B. DISCUSSION

The Boiler and Pressure Vessel Committee of the ASME publishes documents entitled "Interpretations of the ASME Boiler and Pressure Vessel Code,"1 These documents, referred to as "Code Cases," explain the intent of Code rules or provide Code permission to use alternative requirements under special circumstances or with suitable precautions.

Most Code Cases a~e even-tually superseded by revision to the Code and then are annulled by action of the ASNIE Council.The Code Cases listed in this guide are limited strictly to those applicable to Section III which are oriented toward materials and testing.All published Code Cases in the area of materials and testing which are applicable to Section IIl of the Code and were in effect on November 5. 1973 were reviewed for inclusion in this guide. Code Cases which were annulled by ASME Council between the November 5, 1973, and the March 2, 1974, Council meetings are not included in the listing. Code Cases which are not listed herein are either not endorsed or will require supplementary provisions on an individual basis to attain endorsement status.The endorsement of a Code Case by this guide constitutes acceptance of its technical position for USAEC REGULATORY

GUIDES Copies of published guides may be oblaired by request indicating the division$desired to the US. Atomic Energy Commission.

Washington.

D.C. 70545.Regulatory Guides are issued to describe and rnaki availlble to the public Attention:

Director of Regulatory Standards.

Comments and suggestions or methods acceptable to the AEC Regulatory staff of Imlemnenting specific parts of Impyrovements in the"e guides ate o encouraged and should be sent to the Secretary the Commission'%

regulations, to delineate techniqutus .ved by the staff in of the Commission.

US. Atomic Energy Commission, Washington, D.C. 20545, evaluating specific problems or postulated accidents, ot to provide guidance to Attention:

Chief. Public Proceedings Statf.apptlicants.

flegulatory Guides are not iubstitutes for regulations and compliance with them is not required.

Methods end solutions dilffeent from those set out in The guide% Ire Issued In the following ten broad divisiont:

the will be acceptable if they provide a bosh for the findings requisite to the Issuence or continuance of a permit or license by the Commission.

1. Power Reactors 6. Products 2. Reseercts and Test Reactors;

7. Transportation

3. Fuels end Materials Facilities

8. Occupational Health Published guides will be revised periodically, at appropriate, to accommodlate

4. Environmental and Siting 9. Antitrust Review commants and to reflect new information or experlence.

5. Materials aid Plant Protection

10. General applications not precluded by regulatory or other requirements or by the recommendations in this or other regulatory.

guides. Contingent endorsement is indicated in Regulatory Position C.I.a for specific cases; however it is the responsibility of the user to make certain that no regulatory requirements are violated and that there* are no conflicts with other recommended limitations resulting from Code Case usage.The acceptance or endorsement by the Regulatory staff applies only to those Code Cases or Code Cc".e revisions with the date of "Council Approval" as shown in the Regulatory Position of this guide. Earlier or later revisions of a Code Case are not endorscd by thi"s guide.New Code Cases as they are issued or future revisions of existing Code Cases will require evaluation by the Regulatory staff to determine if they qualify for inclusion in the approved list. Because of the continuing change in the status of Code Cases, it is planned that tids guide will require periodic updating to accommodate new Code Cases and any revisions of existing Code Cases.C. REGULATORY

POSITION I. The Section III ASME Code Cases 2 listed in the following by number, title, and date of Council approval are acceptable to the Regulatory staff for application in the construction of components for water-cooled nu-clear power plants. Their use is acceptable within the limitations stated in the "Inquiry" and "Reply" sections of each individual code case, such Regulatory or other requirements as may exist, and the additional limitations recommended by the Regulatory.

staff given with the individual code cases in the list. The categorization of Code Cases is intended to facilitate the Code Case listing and is not intended to indicate a limitation on its usage.a. Materials-Oriented Code Cases with Title and Date of Council Approval: (1) Code Cases involving plate: 1141-1 8/31/61 Foreign Produced Steel 1401-1 3/9172 Welding Repairs to Cladding of Section III Components After Final Post-Weld Heat Treatment 1492 10/29/71 Post-Weld Heat Treatment Sec-tions 1, 111, and ViII, Division I and 2 1493-1 8/14/72 Post-Weld Heat Treatment, Sec.tion III 1571 3/3/73 Additional.

Material for SA-234 Carbon Steel Fittings, Section Ill*2 A numerical listing of the Code Cases appears in the Appendixc.

(2) Code Cases involving pipe and tubes: 1423-2 3/9/72 Wrought Type 304 and 316 with Nitrogen Added, Sections 1, 111, VIII, Divisions I and 2 This Code Case is acceptable subject to the conditions established in Regulatory Guides 1.31,"Control of' Stainless Steel Welding," and 1.44,"Control of the Use of Sensitized Stainless Steel." 1474-1 10/29/71 Integrally Finned Tubes for Sec-tion III 1484 8/4/7 1 SB-163 Nickel-Chromium-Iron Alloy Tubing at a Specified Minimum Yield Strength of 40,000 psi,Section III 1527 6/6/72 Integrally Finned Tubes, Section IlI 1529 6/26/72 Materials .or Instrument Lind Fittings, Sectw-n III 1578 6/25/72 SB-167 Nickel-Chromium Iron (Alloy 600) Pipe o; Tube, Sec-tion III 1599 8/23/73 ASTM A-234-73 Fittings V.r use in Section 111, Classes 1, 2 and 3 Construction

(3) Code Cases involving bars and forgings: 1332-6 3/9/72 Requirements for Steel Forgings,Section III and VIII, Division 2.1334-2 1/14/72 Requirements tor Corrosion- Resisting Steel Bars and Shapes.Section 111 1337.7 8/13/73 Requirements for Special Type 403 Modified Forgings or Bars,Section III 1395-3 11/6/72 SA-508, Class 2 Forgings with Modified Manganese Content,Section III or Section VIII, Divi-sion 2 1498-1 11/6/72 SA-508--Class

2, Minimum Tem-pering Temperature,Section III 1542 Not dtd Requirements for Type 403 Modified Forgings or Bars for Bolting Material,Section III 1587- 8/13/73 SA-508--Class

3 Forgings with 0.4/i.0 Ni for Section III and VIII, Division 2 Construction

1605 11/5/73 Cr-Ni-Mo-V

Bolting Material for Section 1II, Class 1 Components

(4) Code Cases involving general usage: 1344-3 12/18/72 Requirements for Nickel-Chromium, Age-Hardenable Alloys,Section III I 1.85-2

1345-2 3/9/72 Requirements for Nickel.Molybdenum-Chromium-Iron Alloys,Section III 1434-1 3/9/72 Post-Weld Heat Treatment of SA-487 Class 8N Steel Castings,Section III, Classes I and 2 1521 5/1/72 Use of H-Grades of SA-240, SA-479, SA-336, and SA-358,Section III This Code Case is acceptable subject to the conditions established in Regulatory Guides 1.31,"Control of Stainless Steel Welding," and 1.44,"Control of the Use ot'Sensitized Stainless Steel." 1531 8/14/72 Electrical Penetrations, Special Alloys For Electrical Penetration Seals, Section 111 1532 8/14/72 Section IIl, Class 3 Components Made of 8 Percent and 9 Percent Nickel Steel 1557-2 12/17/73 Steel Products Refined by Secondary Melting 1567 3/3/73 Testing Lots of Carbon and Low Alloy Steel Covered Electrodes,Section III 1568 -3/3/73 Testing Lots of Flux Cored mnd Fabricated Carbon and Low Alloy Steel Welding Electrodes.

Section Ill 1583 6/25/73 Use of 80-40 Carbon Steel Cast-ings 1590 8/13/73 Chemical Analysis Variaitiks.

Section III Construction b. Testing-Oriented Code Cases wi'!i Title and Date of Council Approval: (I) Code Cases involving plates: 1407-2 6/26/72 Time of Examination for Classes 1, 2. and 3 Section Ill Vessels 1456-2 6/25/73 Substitution of Ultrasonic Ex-amination for Progressive Pene.trant or Magnetic Particle Examinations of Partial Penetra-tion and Oblique Nozzle Attach-ment Welds,Section III (2) Code Cases involving bars and forgings: 1515 3/9172 Ultrasonic Examination of Ring Forgings for Shell Sections, Sec-tion III, Class I Vessels.2. Code Cases that are annulled by action of the ASME Council should be considered as deleted from the approved list as of the date of the ASME Council action.

0. IMPLEMENTATION

The following guidance is provided for the implemen-tation of Section III ASME Code Cases involving materials and testing.1. The effective date of this guide is July 1, 1974.2. This listing of Code Cases is applicable after the effective date of this guide unless a particular Code Case has been annulled by action of the ASME Council.3. Components ordered to a specific version of a Code Case before the effective date of this guide need not be changed because a subsequent revision to the Code Case is listed as the approved version in this guide.4. Code Cases on the approved list may be applied to components that were in process of construction prior to the effective date of this guide within the limits specified in the Code Case and applicable regulations or recommended in other regulatory guides.5. Code Cases for Class I components which are not on the approved list of this guide or other regulatory guides, or for which authorization by the Commission has not been granted, are not acceptable on a generic basis for Class I components.

Special autho'ization may be granted for individual cases upon special request to the Commission.

6. Code Cases for other Classes of components which are not on the approved list of this guide or other regulatory guides, or for which authorization by the Commission has not been granted, should not be considered acceptable on a generic basis. Special authori-zation may be granted for individual cases upon special request to the Commission.

1.85-3 APPENDIX Numerical Listing of Code Cases 1141-1 1515 1332-6 1521 1334-2 1527 1337-7 1529 1344-3 1531 1345-? 1532 1395-3 1542 1401-1 1557-2 1407-2 1567 1423-2 1568 1434-1 1571 1456-2 1578 1474-1 1583 1484 1587 1492 1590 1493-1 1599 1498-1 1605 0 1.85-4


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