ML20248B939

Rev 26 to Reg Guide 1.85, Matls Code Case Acceptability ASME Section III Div 1

ML20248B939
Person / Time
Issue date:	07/31/1989
From:	NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
To:
References
REGGD-01.085, REGGD-1.085, NUDOCS 8908090378
Download: ML20248B939 (18)

Text

Revision 26 a U.S. NUCLEAR REGULATORY COMMISSION July 1989

[o togg O g***(e REGULATORY ) GUIDE OFFICE OF NUCLEAR REGULATORY RESEARCH REGULATORY GUIDE 1.85 MATERIALS CODE CASE ACCEPTABILITY ASME SECTION til DIVISION 1 A. INTRODUCTION or modified as necessary to ensure a quality product in keeping with the *equired safety function.

Section 50.55a, " Codes and Standards," of 10 CFR Part 50, " Domestic Licensing of Production Criterion 30, " Quality of Reactor Coolant Pres-and Utilization Facilities," requires, in part, that com- sure Boundary," of the same appendix requires, in ponents of the reactor coolant pressure boundary be part, that components that are part of the reactor designed, fabricated, erected, and tested in accor- coolant pressure boundary be designed, fabricated, dance with the requirements for Class 1 components erected, and test (d to the highest quality standards of Section Ill, " Nuclear Power Plant Components,"' practical.

of the American Society of Mechanical Ent,ineers Appendix B, " Quality Assurance Criteria for Nu-(ASME) Boiler and Pressure Vessel Code or equiva- clear Power Plants and Fuel Reprocessing Plants," to lent quality standards. Footnote 6 to $50.55a states 10 CFR Part 50 requires, in part, that measures be that the use of specific Code Cases may be authorized established for the control of special processing of by the Commission upon request pursuant t materials and that proper testing be performed.

s50.55a(a)(2)(ii), which requires that proposed alter-1 natives to the described requirements or portions This regulatory guide lists those Section III ASME Code Cases oriented to materials and testing thereof provide an acceptable level of quality and that are generally acceptable to the NRC staff for im-safety, "

• • • " " * " E E**"

General Design Criterion 1, " Quality Standards ""

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and Records," of Appendix A. " General Design Cri-teria for Nuclear Power Plants," to 10 CFR Part 50 Any information collection activities mentioned restires, in part, that structures, systems, and compo- in this regulatory guide are contained as requirements in 10 CFR Pan 50, which provides the regulatory ba-nents important to safety be designed, fabricated, erected, and tested to quality standards commensu. sis for this guide. The information collection require-rate with the importance of the safety function to be ments in 10 CFR Part 50 have been cleared under perfor ned. Where generally recognized codes and OMB Clearance No. 3150-0011.

,,,, g n c. standart!s are used, Criterion 1 requires that they be identified and evaluated to determine their applicabil- B. DISCUSSION o

ity, adequacy, and sufficiency and be supplemented

$ The Boiler and Pressure Vesr.el Committee of the ASME publishes a document entitled " Code Cases."1 cac t.opies may be obtained from the American Society of Mechanical 8g Generally, the m. dividual Code Cases that make up notr Engineers, United Engineering Center, 345 East 47th Street. New Old York, New York 10017. this document explain the intent of Code rules or s

D5 Cl%

O CD (D Q The guides are issued in the following ten broad divisions:

, chh (D Q,, Q UsNPC REGULATORY GUIDES Regulatory Caldes are issued to describe and make available to the pub-he methoas acceptable to the NRC staff of implementing specific parts 1. Power Reactors 6. Products of the Commission's regulations, to delinente techniques used by the 2. Research and Test Reactors 7, Transportation staff in evaluating speCitic problems or postulated accidents, or to pro- 3 Fuels and Materials Facinties B. Occupational Health vide Duidance to apphcants, Regulatory Guices are not substitutes for 4. Environrnental and Siting 9. Antitrust and Financial Review regulations, and cornpliance with them is not required. Methods and L. Matenals and Plant Protection 10. Gereral solutions different from those set out in the guides will be acceptable if they provide a basis for the tandings requisite to the issuance or continu-anCO of a permit or license by the Commission. Co les of issued guldes may be purchased from the Govemment Printing office at the current GPO price. Information on current GPO prices may This guide was issued s'ter consideration of comments received from be obtained by contacting the Superintendent of occurrents, u.S.

the publ6c. Comments and suggestions fur 6 improvements in these Gcvemment F%nung office, Post Office Box 37082, Washirgton, oC guides are encouraDed at all times, and guides will be revised, as sp. 20013-7062, telephone (202)276-2060 or (202)275-2171, propriate, to accommoduto comments and to reflect rew information or expenance.

Written comments may be submitted to tne Aegulatory Publications issued guides may also be purchased from the National Techn6 cal infor-Branch, DFIPS, AAM, U.S. Nuclear Aegulatory Comm+ssion WashinD- mation Service on a standing order basis octahs on this serwce may be ton, oC 20555. obtained by writing NTIS, r485 Port Royal Road, Springfield, VA 22101.

provide for alternative requirements under special tinuing change in the status of Code Cases, it is circumstances.

planned that this guide will require periodic updating Most Code Cases are eventually superseded by to accommMate zw % Casu and any Mons revision to the Code and then are annulled by action i existing Code Cases.

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 C. REGULATORY POSITION intent is sanctioned under the rules of the Code. In 1.

other cases, the Code Case is annu!!ed because it is The Section 111 ASME Code Cases 2 listed no longer acceptable or there is no further below (by number, date of ASME approval, and r:quirement for it. A Code Case that was approved title) are acceptable to the NRC staff for application for a particular situation and not for a generic n the construction of components for light-water-application should be used only for construction of cooled nuclear power plants. Their use is acceptable the cpproved situation because annulment of such a within the limitations stated in the " Inquiry" and

" Reply" sections of each individual Code Case, Code Case could result in construction that would not mett Code requirements. within the limitations of such NRC or other require-ments as may exist, and within the additional limita-The Code Cases listed in this guide are limited to tions recommended by the NRC staff given with the those cases applicable to Section ill that are oriented individual Code Cases in the listing. The categoriza-toward materials and testing. tion of Code Cases used in this guide is intended to All published Code Cases in the area of materials facilitate the Code Case listing and is not intended to and testing that are applicable to Section 111 of the indicate a limitation on its usage.

'l Code and were in effect on December 8,1987, were reviewed for inclusion in this guide. In addition to the listing of acceptable Code Cases, this revision of the a. Materials-oriented Code Cases (Code Case number, date of ASME approval,3 and title):

guide includes listings of (1) Code Cases that were identified as acceptable in a prior version of this (1) Code Cases involving plate:

regulatcry guide and that were annulled after the N-7-1 12-13-82 High Yield Strength Steel, original issuance of this guide (June 1974) and (2) Code Cases that were identified as acceptable in 02-20-86 Section 111 Division 1. Class 1 ye33eis a prior version of this regulatory guide and that were .

superseded by revised Code Cases after the original Code Case N-7-1 is acceptable subject to the fol-issuance of this guide (June 1974). Code Cases that I wing condiuon m, addition to those conditions are not listed herein are either not endorsed or will spgeified m the Code Case: The information re-require supplementary provisions on an individual quired to be developed by Note 1 in the Code basis to attain endorsement status. Case should be provided in each referencing Safety Analysis Report.

The endorsement of a Code Case by this guide constitutes acceptance of its technical position for (2) Code Cases invohing pipe and tubes:

applications not precluded by regulatory or other requirements or by the recommendations in this or 1474-1 10-29-71 Integrally Finned Tubes for other regulatory guides. Contingent endorsement is (N-17) 01-08-79 Section Ill 01-21-82 indicated in regulatory position C.1.a for specific cases. However, it is the responsibility of the user t 01-21-85 make certain that no regulatory requirements are 01-21-88 N-20-2 12-07-87 SB-163 Nickel-Chromium-violated and that there are no conflicts with other recommended limitations resulting from Code Case Iron Tubing (Alloy 600 and "8"E** 690) and Nickel-Iron-Chromium Alloy 800 at a Acceptance or endorsement by the NRC staff Specified Minimum Yield applies only to those Code Cases or Code Case Strength of 40.0 Ksi and revisions with the date of ASME approval as shown Cold Worked Alloy 800 at a in the regulatory position of this guide. Earlier or yield strength of 47.0 Ksi, later revisions of a Code Case are not endorsed by Section III, Division 1, this guide. New Code Cases will require evaluation by Class 1 the NRC staff to determine if they qualify for inclusion in the approved list. Because of the con- #^ """"'"' 8 *

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• PP'"" '"

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Nhen more than one date is given, the earlier date is that on which

%nes indicate sutatantive changes from Revision 25. the Code Case was approved by the ASME, and the later date(s)is that on which the Code Ome was reaffamed by the ASME.

1.85-2

1527 06-26-724 Integrally Finned Tubes, Sec- (3) Codes Cases involving bars and (N-26) 01-08-79 tion III forgings:

01-21-82 01-21-85 1337-11 05-15-78 Special Type 403 Modified 01-21-88 (N-4-11) 07-13-81 Forgings or BarsSection III.

l 07-13-84 Division 1, Class 1 and CS N-188-1 05-15-78 Use of Welded Ni-Fe-Cr-Mo-07-13-81 Cu (Alloy 825) and Ni-Cr. 07-13-87 l 07-13-84 Mo-Cb (Alloy 625) Tubing, N 353 07-16-82 Marking of SA-354 Grade BD Section III, Division 1, Class 2 05-19-85 Bolting Section III, Division 1 and 3 N-367 02-14-83 SA-372 Type V. Grade 1 02-19-86 Class B.Section III, Divi-N-224-1 05-11-81 Use of ASTM A500 Grade B SIO" I 04-05-84 and ASTM A501 Structural 04-05-87 Tubing for Welded Attach- N-370-2 12-05-85 Modified SA-705 Grade I ments for Section III, Class 2, .XM-13 Forgings,Section III, Dmsson 1 3, and MC N-294 08-25-80 SB-148 Alloy 952 and 954, (4) Code Cases involving general usage:

05-25-83 and SB-62 Alloy 836 Fittings.

Section III, Division 1 Class 2 N-60-3 09-05-85 Material for Core Support N-321-1 12-05-85 Use of Modified SA-249, Structures,Section III Divi-Grade TP 304,Section III, sion 1 Division 1, Class 1 Code Case N-60-3 is acceptable subject to the N-379-1 07-18-85 Bimetallic Tubing Section III, following condition in addition to those condi-Division 1, Class 1 tions specified in the Code Case: Welding of age-N-404 04-05-84 Annealed Alloy UNS N06625 hardenable elloy SA-453 Grade 660 and SA-637 Over UNS N06600 Bimetallic Grade 688 should be performed when the mate-Tubing,Section III, Division rial is in the solution-treated condition. For 1, Class 1 SA-479 material, the maximum yield strength should not exceed 90,000 psi in view of the sus-Code Case N-404 is acceptable subject to the fol- ceptibility of this material to environmental lowing conditions in addition to those conditior.s cracking. .

specified in the Code Case: The outside layer of the bimetallic tubing should be limited to a mini- N-71-15 12-16-86 Additional Materials for Sub-l mum of 5 percent and to a maximum of 40 per- section NF, Classes 1, 2, 3 cent of the wall thickness. The tolerance on the and MC Component Supports outside layer of material should not exceed Fabricated by Welding, Sec-

-0.000 to +0.007 inches of the specified design tion III, Division 1 wall thickness. Code Case N-71-15 is acceptable subject to thel following condition in addition to those condi-tions specified in the Code Case: The maximum N-418-1 07-30-86 Use of Seamless Ni-Fe-Cr- measured ultimate tensile strength (UTS) of the Mo-Cu Low Carbon (UNS component support material should not exceed N08028 and UNS N08904) 170 Ksi in view of the susceptibility of high-Tubing,Section III, Division strength materials to brittleness and stress corro-1, Classes 2 and 3 sion cracking. Certain applications may exist N-439 02-23-87 Use of 20 Cr-18 Ni-6 Mo where a UTS value of up to 190 Ksi could be (Alloy UNS S31254) Forg- considered acceptable for a material and, under k ings, Plate, Seamless and this condition, the Design Specification should Welded Pipe, and Welded sPecify impact testing for the material. For these Tube, Class 2 end 3 Con. cases, it should be demonstrated by the applicant l

o struction.Section III, that (1) the impact test results for the material Division 1 meet code requirements and (2) the materialis N-441 02-23-87 Use of 20 Cr-18 Ni-6 Mo not subj.ct to stress corrosion cracking by virtue (Alloy UNS S31254) Fittings, of the fact that (a) a corrosive environment is not Class 2 and 3 Construction, Present and (b) the component that contains the Section III, Division 1 material has essentially no residual stresses or l

assembly stresses, and it does not experience fre-l

• Corrected date. quent sustained loads in service. In the last 1.85-3

s:ntenes of paragraph 5.3, reference should be Code Case N-249-9 is acceptabla subj!ct to th3 [

made to paragraph 4 5.2.2, " Alt:rnate Atmos- following conditions in addition to those condi-phere Exposure Time Periods Established by tions specified in the Code Case: The fracture Test," of the AWS D.1.1 Code for the evidence toughness requirements apply only to piping sup-presented to and accepted by the Authorized In- ports and not to Classes 1, 2, and 3 component spector concerning exposure of electrodes for supports. The fracture toughness of Classes 1,2, longer periods of time. Paragraph 16.2.2 is not and 3 component supports should be character-acceptable as written and should be replaced ized in accordance with paragraph 5.3.4 of the with the following: When not exempted by USNRC Standard Review Plan (NUREG-0800)

, 16.2.1, above, the postweld heat treatment shall or on a case-by-case basis. The following is to be l be performed in accordance with NF-4622 ex- added to paragraph (5) of the Case: For these cept that for ASTM A-710 Grade A material, it cases, it should be demonstrated by the owner shall be at least 1000*F (540'C) and shall not that (1) the impact test results for the material exceed 1150*F (620'C) for Class 1 and Class 2 meet Code requirements and (2) the materialis material and 1175'F (640'C) for Class 3 mate- not subject to stress corrosion cracking by virtue rial. The new holding time at temperature for of the fact that (a) a corrosive environment is not weld thickness (nominal) shall be 30 minutes for present and (b) the component that contains the 1/2 inch or less, I hour per inch for thickness material has essentially no residual stresses or as-over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 sembly stresses, and it does not experience fre-minutes for each additional inch over 5 inches. quent sustained loads in service.

The fracture toughness requirements as listed in this Code Case apply only to piping supports and N-265-1 05-19-85 Modified SA-487 Castings, not to Class 1, 2, and 3 component supports. Section III, Division 1. Class 1 The fracture toughness of Classes 1, 2, and 3 N-337-1 07-18-85 Use of ASTM B525-70 Grade component supports shall be characterized in ac- II, Type 11, Sintered Austen-cordance with paragraph 5.3.4 of the USNRC itic Stainless Steel for Class 2, Standard Review Plan (NUREG-0800) or on a 3, and MC Component Stan-case-by-case basis. dard Supports,Section III, Division 1 NC481 09-07-855 Use of SA-574 Socket Head 1754 01-14-77 Hard Surfacing by the Spray- 02-20-86 Cap Screws,Section III, Divi-(N-126) 01-07-80 Fuse Method,Section III, sion 1 12-13-82 Class 1,2 and 3 Construction 02-20-86 Code Case N-348-1 is acceptable subject to the l 12-07-87 following condition in addition to those condi-1759-1 05-15-78 Material for Internal Pressure tions specified in the Code Case: Applicants (N-131-1) 07-13-81 Retaining Items for Pressure should justify in their Safety Analysis Reports 12-11-81 Relief Valves,Section III, why use of these socket head cap screws will not 12-05-84 Division 1, Class 1, 2, and 3 result in early failure from stress corrosion l 12-05 87 cracking.

Code Case 1759-1 is acceptable subject to the N-371-1 07-18-85 12 Cr-1W-1Mo-1/4V Marten-following condition in addiuon to those condi- sitic Stainless Steel Valve In-tions specified in the Code Case: Applicants us- ternals,Section III, Division 1 ing this Case should also use Code Case 1711 for N-438 02-23-87 Fe-24.5 Ni-21 Cr-6.5 the de' sign of pressure relief valves. Mo-0.2N (Alloy UNS N08367) Seamless and Welded Pipe. Tube, Plate, N-205 05-15-78 Use of Ductile fron SA-395 j Bar, Fittings, and Forgings, 07-13-81 for Section Ill, Division 1 Class 2 and 3 Construction, 07-13-84 Class 3 Construction Section III, Division 1 l 07-13-87 N-440 02-23-87 Use of 20 Cr-18 Ni-6 Mo d N-246-2 05-25-83 SB-169, AIMy C61400, Sec-(Alloy UNS J93254) Castings,  ;

07-30-86 tion 111, Dinsion 1. Class 3 Class 2 and 3 Construction, '

N-249-9 12-16-86 Additional Material for Sub- Section III, Division 1 section NF, Classes 1, 2, 3, and MC Component Supports

• Code Case N-M8 was annuHed on 9-7-85. It was reinstated as Fabricated Without Weldm.g, N-MB-1 on 2-20-86. Ikcause of the circumstances and because there were no changes in the Code Casc. the NRC considers that the Code Section III, Division 1 Case was in effect during the period 9-7-85 through 2-20-86.

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1.85-4

05-07-87 High Yield Strength Cr-Mo 1395-4 01-08-79 SA-508, Class 2 Forgings with N-443 St:el, Class 1 Compon:nts, (N-9-4) 07-01-82 Modified Manganese Con-Section 18. Division 1 tent,Section III 1407-3 07-01-74 Time of Examination for O b. Testing-oriented Code Cases: (N-10) 01-08-79 Classes 1, 2, and 3, Sec-V (1) Code Case myolving plates: 01-21-82 Vessels, tion 111 09-17-84 (2) Code Case involving bars and forgings: 09-17-87 1412-4 11-03-75 Modified High Yield Strength

N-329 12-11-81 Examination of Bar Material, 01-01-77 Steel for Section III, Division "

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

Code Case 1412-4 was acceptable subject to the (3) Code Case involving pipe and tubes: following condition in addition to those condi-tions specified in the Ccde Case: The informa-1755-1 01-14-77 Alternative Rules for Exami.

01-07-80 nation of Welds in Piping, tion required to be developed by Note 1 in the (N-127) Code Case should be provided in each referenc-02-14-83 Section Ill, Class 1 and 2 ing Safety Analysis Report. The matetial given in ]

02-20-86 Construction the Inquiry section of the Code Case should be  !

SA 508 Class 4b, instead of SA-508, Class 4.

(4) Code Case involving general usage:

1414-5 08-29-77 High Yield Strength Cr-Mo N-351 07-16-82 Use of Subsize Charpy (N-11-5) 08-29-80 Steel for Section III, Division 05-19-85 V-Notch Specimens, Section 1, Class 1 Vessels III, Division 1 Code Case 1414 5 was acceptable subject to the

2. Code Cases that were endorsed by the NRC t, n tri addition to those condi-in a prior version of this guide and were later I " "I"8 #

t ns specified .m the Code Case: The mforma-annulled by action of the ASME should be tion required to be developed by Note 1 m the considered as deleted from the list of acceptable Code Case should be provided m each referenc-Code Cases as of the date of the ASME action that ing Safety Analysis Report.

/ approved the annulment. Such Code Cases that were annulled on or after July 1,1974, are listed in the 1423-2 03-09-72 Wrought Type 304 and 316 following by number, effective dates,e and title.7 07-01-77 with Nitrogen Added Sec-tions I, III, VIII, Division 1 1141-1 08-31-61 Foreign Produced Steel and 2 07-23-76 Code Case 1423-2 was acceptable subject to  ;

1332-7 01-08-79 Requirements for Steel Forg- compliance with the recommendations contained (N-1-7) 07-01-82 ings,Section III, Division 1 m Regulatory Guides 1.31, " Control of Fernte 1334-3 04-29-74 Requiremerits for Corrosion- Content in Stainless Steel Weld Metal, and (N 2) 01-08-79 Resisting Steel Bars and 1.44, " Control of the Use of Sensitized Stainless 01-01-81 Shapes,Section III Steel.

1335-10 08-28-78 Requirements for Bolting (N-3-10) 08-28-81 Materials,Section III 3434 1 03 09-72 Postweld Heat Treatment of 09-16-84 01-01-78 SA-487 Class SN Steel N-5-1 12-13-82 Nickel Chromium Age. Hard- Castings,Section III 12-13-85 enable Alloys (Alloy X750), 1456-2 06 25-73 Substitution of Ultrasonic Section Ill, Division 1, (N-15) 03-01 79 Examination for Progressive Classes 1, 2, 3, MC, and CS Penetrant or Magnetic Par-

) 1345-2 03-09-72 Requirements for Nickel- ticle Examinations of Partial (N-6) 03-01-79 Molybdenum-Chromium-Iron Penetration and Oblique Alloys, Section Ill Nozzle Attachment Welds, Section 111

• Earher date-date Code Case was approved by ASME;later date-1475-18 03 02-74 Ferritic-Austenitic Stainless date Code Case was annulled. Where snore than two dates appear, the 07-01-75 Steel Seamless Tubes for 1858 d* i$ the date that the Code Case was annulled. 'Ihe middle date Section Ill, Class 2 and 3 (or dates) was the date of reaffirmation of the Code Case.

> ' 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

• Code Case was annulled on date as indicated. but the annulment July 1,1974. was fast so indicated in Revision 12 of this guide.

1.85-5

1498-1 11-06-72 SA-508-Class 2 and 3, 1583 06-25-73 Use of 80-40 Carbon Steel (N-22) 01-08-79 Minimum Tempering Tem- 03-21-77 CastingsSection III 07-01-82 perature, Section 111 15678 08-13-73 SA-508 Class 3 Forgings with 1515 03-09-72 Ultrasonic Examination of 12-31-75 0.4/1.0 Ni for Section III and 07-01-77 Ring Forgings for Shell VIII, D vision 2 Construction Sections,Section III, Class 1 1590 08-13-73 Chemical Analysis Variations, Vessels 1521-1 04-29-74 Use of H-Grades of SA-240, 03-21-77 Section III Construction 01-01-78 SA-479, SA-336, and SA- 1602-1 04-29-74 Use of SB-42 Alloy 122, 358,Section III 12-31-74 SB-111 Alloys 122, 715 and 706, SB-171 Alloys 715 and Code Case 1521-1 was acceptable subject to compliance with the recommendations comained 706 and SB-466 Alloys 706 and 715, Section 111 Class in Regulatory Guides 1.31, " Control of Ferrite Content in Stainless Steel Weld Metal," and 2 and 3 Components 1.44, " Control of the Use of Sensitized Stainless 1603 12-17-73 Toughness Tests When Cross-Steel. 07-01-74 Section Limits Orientation and Location of Specimens 1528-3 11-03-75 High Strength Steel SA-508, 1605 11-05-73 Cr-Ni-Mo-V Bolting Material 01-01-76 Class 2 and SA-541, Class 2 11-20-78 for Section III, Class 1 Forgings,Section III, Class 1 03-17 80 Components Components 1608-1 12-17-73 Use of ASME SB-265, Code Case 1528-3 was acceptable subject to the 03-21-77 SB-337, SB-338, SB-348, and following condition in addition to those condi- SB-381, Grades 1,2,3, and 7 tions specified in the Code Case: The informa- Unalloyed Titanium and tion required to be developed by Note 1 in the ASTM B-363 Titanium Weld-Code Case shcald be provided in each referenc- ing Fittings,Section III Class ing Safety Analysis Report.

2 and 3 Components 1529s 1612 12-17-73 Use of Type 308 Stainless 06-29-72 Materials for Instrument Line 07-01-73 Fittings,Section III (N-56) 07-01-78 Steel Rod and Bar for Section 1531 08-14-72 Electrical Penetrations. Spe- III, Class 1, 2, 3, and CS 03-21-77 cial Alloys for Electrical Construction Penet ation Seals,Section III 1613 12-17-73 Use of SA-372 Class IV Forg-1532 08-14-72 Section III, Class 3 Compc- 01-01-78 ings,Section III Construction 01-01-78 nents Made of 8 Percent and 1615 12-17-73 Use of A587-73,Section III, 9 Percem Nickel Steel 01-01-78 Class 3 Construction 1542-1 04-29-74 Type 403 Forgings or Bars for 1616s 12-17-73 Ultrasonic Examination of (N-33) 01-08-79 Bolting Material,Section III 07-01-75 Seamless Austenitic Steel 01-21-82 Pipe,Section III, Class 1 01-21-85 1557-3 Construction 01-08-79 Steel Products Refined by 07-01-82 Secondary Remelting, Section 16228 03-02-74 PWHT of Repair Welds in (N-37-3)

III and VIII, Dmsson 1 and 2 01-01-76 Carbon Steel Castings, Sec-1567 03-03-73 Testing Lots of Carbon and tion III, Class 1, 2, and 3 01-01-78 Low Alloy Steel Covered 1625 03-02-74 Repair of Section III Class 2 Electrodes,Section III 12-31-74 and 3 Tanks 1568 03-03-73 Testing Lots of Flux Cored 1626-1 01-08-79 Normalized and Tempered 01-01-78 and Fabricated Carbon and (N-65-1) 01-21-82 1-1/4 Cr Low Alloy Steel Low Alloy Steel Welding 01-21-85 Forgings,Section I and Electrodes,Section III Section III 1571 03-03-73 Additional Material for 1634-2 08-13-76 Use of SB-359 for Section III, (N-41) 01-08-79 SA-234 Carbon Steel Fittings, (N-68) 07-01-78 Division 1, Class 3 01-21-82 Section III Construction 01-21-85 16378 1578 04-29-74 Effective Date for Compliance 06-25-73 SB-167 Nickel-Chromium-01-01-75 with NA-3700 of Section 111 (N-43) 01-08-79 Iron (Alloy 600) Pipe or 07-01-82 Tube,Section III acode case 1637 hei been accepted only on a case-by-canc basis. -

1.85-6

! 1645a 08 12-74 Use of DeLng Diagram for 1714-2 08-28-78 Postw:Id Hsat Treatment of 01-01-76 Calculating *.he Delta Ferrite (N-102-2) 07-13-81 P-1 Material Section III.

Content of Welds in Section 06-30-84 Class MC III, Class 1, 2, and CS 01-08-79 Vacuum, Carbon Deoxidized

[N Construction 1722-1 (N-107-1) 01-08-82 SA-508 Forgings,Section III,

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1648 08-12-74 SA-537 Plates for Section III, Division 1 07-01-76 Class 1, 2, 3, and MC 1724 11-03-75 Deviation from the Specified Components (N-108) 07-01-78 Silicon Ranges in ASME 1649s og.12-74 Modified SA 453-GR 660 for Material Specifications.

01-01-76 Clast 1, 2, 3, and CS Section III, Division 1, and Construction VIII, Division 1 and 2 1650 08-12-74 Use of SA-414 Grade C for 1728 11-03-75 Steel Structural Shapes and I 12-31-74 Class 2 and 3 Components, 07-01-77 Small Material Products for Secuon III Dm,sson 1 Component Supports, Section 1664 11-04-74 Use of Cr-Ni-Fe-Mo-Cu-Cb III, Division 1 Construction 03-21-77 Stabilized Alloy Cb-3 for 12-22-75 Weld Metal Tem,Section III, 1740 Section III Class 2 and 3 07-01-76 Class 1, 2, 3, MC and CS Construction 11-04-74 Use of SB 12. Alloy 122 for 1741-1 01-14-77 Interim Rules for the 1666 07-01-75 Section III, Class 2 and 3 01-01-78 Required Number of Impact Tests for Rolled Shapes, Construction Section III, Division 1, 1682-1 08-11-75 Alternate Rules for Material 12-31-75 Manufacturers and Suppliers, Subsection NF, Component Section III, Subarticle NA- Supports 3700 1742 03-01-76 Use of SB-75 Annealed 1684e 03-03-75 A637 Grade 718 for Bolting 07-01-76 Copper Alloy 122, Section 01-01-76 Class 1 and 2 Constriction III, Division 1. Class 2 1690s 04 28-75 Stock Materials for Section Construction 01-01-77 III Construction,Section III, 1743 03-01-76 Use of SB-98 Cu-sib Rod Division 1 07 01 76 CDA651 Section III, Division

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1691 04-28-75 Ultrasonic Examination in 1, Class 2 Components 01-01-78 Lieu of Radiography of Repair 1746 03-01-76 Leak Testing of Seal Welds, Welds for Vessels,Section III. 03-01-79 Section III, Division 1, Class (N-123)

Class 1 1, 2, and 3 Construction 1698 06-30-754 Waiver of Ultrascnic Transfer 1747 03-01-76 Requirements for Martensitic (N-92) 11-20-78 Method,Section III, V, and 01-08-79 Stainless Steel Forgings with 07-13-81 VIII, Dmsson 1 (N-124) 07-13-81 13% Chromium and 4%

07-13-84 Nickel,Section III, Division 1 Code Case 1698 was acceptable subject to the 07-13-87 following conditions in addition to those specified 1748 03-01-76 Low Carbon Austenitic Stain-in the Code Case: The material from which the (N-125) 07-01-78 less Steel Pipe Welded With basic calibration block is fabricated should be of Filler Metal, Sectica III, the same product form, alloy, and heat treatment Division 1 Construction as the material being examined. Alloys of equiva- 1760 04-26-76 Maximum Dimensions for l lent P-number grouping may be used for the 01-01-78 Isolated Pores in Welds-Class fabrication of calibration blocks if adjustrnents to 1 Components,Section III, signal height can be made to compensate for Division 1 sound beam attenuation difference between the 1766 04-26-76 Testing Requirements for calibration block and the material under 07-01-77 Welding Materials, Class 1,2, examination by following '.he transfer method 3, MC and CS Construction, procedure of T 535.1(d) Article 5.Section V, ...

ASME B&PV Code,1977 edition.

1767 04-26-76 Exa ination of bular Prod-1713 08-11-75 Small Material items, Section 01-01-77 ucts Without Filler Metal-12-31-75 III Division 1. Class 1, 2, 3, Class 1 Construction, g Section III, Division 1 1

CS and MC

\

1.85-7

1770 08-13-76 Testing of Electroslag Wire 1820 03-23-77 Alternative Ultrasonic Exami-(N-139) 01-01-79 and Flux for Class 1, 2, 3, (N-177) 03-17-80 nation Technique,Section III, MC, and CS Construction, 02-14-83 Division 1 Section III, Division 1 01-01-84 1772 08-13-76 Use of SA-453 Bolts in Serv- N-178 05-25-77 Use of ASTM B271, CDA (N-140) 08-30-79 ice Below 800'F Without 01-01180 954, Alloy 9C for Class 3 07-16-82 Stress Rupture Tests, Section Construction,Section III, 12-31-85 III, Division 1 Division 1 1773 08-13-76 Use of Other Product Fonns N-180 07-11-77 Examination of Springs for 07-01-77 of Materials for Valves, 07-01-78 Class 1 Component Standard Section III, Division 1 Supports,Section III, Divi-1777 08-13-76 Use of SA-106, Grade C in sion 1 07-01-77 Class MC Construction, N-181 07-11-77 Steel Castings Refined by the Section III, Division 1 07-11-80 Argon Decarburization 1781 09-10-76 Use of Modified SA-487 Process,Section III, Division (N-147) 07-01-78 Grade CA6NM,Section III, 1 Construction Division 1. Class 1, 2, 3, MC N-183 07-11-77 Use of Modified SA-182 or CS 01-01-e 0 Grade F22 for Section III, 1782 09-10-76 Use of Copper-Nickel Alloy Division 1, Class 1, 2 and 3 (N-148) 08-30-79 962 for Castings,Section III, Construction 07-16-82 Division 1. Class 3 N-190 08-29-77 Use of SA-455 for Class 3 06-30-83 Construction 07-01-78 Components,Section III, 1787 09-10-76 Depta ed Weld Repairs for Division 1 01-01-78 Forgings,Section III, Division N-204 03-20-78 Use of Modified SA-508, 1, Class' 1, 2, 3, MC and C., 01-01-81 Class 3, and SA-541, Class 3 Construction for Section III, Division 1, 1793 01-14-77 Structural Steel Rolled Class 1,2, and 3 Construction (N-156) 01-07-80 Shapes,Section III, L vision N-206 03 20-78 Use of ASTM B151-75 02-14-83 1, Clacs 2, 3, and MC 03-16-81 Copper-Nickel Alloy 706 Rod 02-14-86 06-30-83 and Bar for Section III, 1794 01-14-77 Use of Seamless Al-Br, Alloy Division 1, Class 3 (N-157) 01-07-80 CDA 614 Pipe,Section III, Construction 01-07-83 Division 1, Class 3 N-207-1 03 19-79 Use of Modified SA-479 Type 1795 01-14-77 Examination of Weld Repairs 01-21-82 XM-19 for Section III, (N-158) 07-01-78 in Forgings,Section III, 01-21-85 Division 1, Class 1, 2, 3, or Division 1, Class 1, 2, 3. MC CS Construction and CS N-223 11-30-78 Requirements for Stainless 1798 01-14-77 Use of ASTM A352-75, 11-20-81 Steel Precipitation Hardening, 01-01-78 Grades LCA and LCC, Section III, Division 1 ClassSection III, Division 1. Class MC 1, 2, and 3 N-225 11-20-78 Certification and Identifica-1810 03-03-77 Testing Lots of Carbon Steel 01-01-81 tion of Material for Compo-03-03-80 Solid, Bare Welding Electrode Supports,Section III,

"*".t ,

or Wire, Section Ill, Division Dinston 1 1, Class 1, 2, 3, MC, and CS N-227 07-09-79 Examination of Repair Welds, 181920 03-23-77 Use of Type XM-19 for 07-09-82 Section III, Class 2 and 3 01-01-78 Construction'Section III, "

ON80 Wenah Cedcanon, I Division 1, Class 1, 2, 3 1819-1" 1203-23-77 Use of Type XM-19 for 05-06-83 Section III, Division 1, (N-176-1) 0-23-80 Construction,Section III, 06-30-84 Classes 1, 2, 3, MC, and 08-25-80 Division 1 Class 1, 2, and 3 "* * # "

i 08-25-83 l

58 Code Case N-176-1: The 3-23-80 is an annulment date, his j "Ttus Code Case was reaffirmed as Case 1819-1. See regulatory position 2 for the effective dates. Case was alke d to crire on 3 23-80 because of an administrative '

error. It was reinstated on 8-25-80 with no technical changes. It is,

" Case 1819 (N-176)was annulled December 31,1977. However, therefore, considered to be in effect during that iapse in time. The it was later reaffirmed to continue pronding rules pertaining to exter- 8-25-83 is the mandatory annulment date. The Case did not appear in nal pressure charts. Revisions 18-21 of this guide! ecause of the ASMEadministative error.

l 1.85-8

Code C:se N-242-1 was acc:ptable subject to the ,N-295 01-15-81 NCA-1140, Materials, following condition in addition to those condi- 12-11-81 Section III, Division 1 tions specified in the Code Case: Applicants 06-30-82 g N-296 11-17-80 Welding Material, Section 111.

/ j should identify in their Safety Analysis Reports 12-01-83 Division } Construction

(/ the components and supports for which the Code Case is being applied and should specify the re- N-298 11-17-80 Examination of Component ,

1 spective paragraphs of the Code Case. 12-01-83 Supports,Section III, Division 1, Class 1, 2, 3, and MC N-245 07-09-79 Use of ASTM B61-76 and N-299-1 07-18-85 Use of Nickel-Chromium-07-16-E2 B62-76 Copper Alloy Castings 02-23-87 Molybdenum-Columbium i 07-17-85 for Section III, Division 1, Alloy 625 Forgings, Section Class 3 Construction III, Division 1 Class 2 and N-246 07-09-79 Use of S3-169, Alloy CA Class 3 Components 09-07-82 614,Section III, Division 1, N-310-1 08-14-81 Certification of Bolting Class 3 07-01-82 Materials,Section III, N-248 08-30-79 Alternative Reference Radio- Division 1, Class 1, 2, 3 MC 07-01-80 graphs.Section III, Division and CS Code Case N-310-1 was acceptable subject to the h*S ons ction ,

f 11 wing conditions in addiuon to those condi-N-259 01-07-80 Ni-Cu-Al Bolting Material SB ti ns specified in the Code Case: Each applicant 02-14-83 164 Modified,Section III, who applies the Code Case should indicate m the

- 01-01-84 Division 1, Class 3 referencing Safety Analysis Report (1) m what N-265 3 01-07-80 Modified SA-487 Castings, way the bolting does not meet NCA-3800 (or 09-01-83 Section III, Division 1 Class 1 ,

NA-3700), (2) where the boltmg will be used m 12-31-84 the plut, and (3) how it will be shown that the 05-19-85 bolting material properties required by the Equip-N-267 01-07-80 Double-Wall Radiography, ment Support Design Specification are present m 07-01-81 Section III, Division 1, Class 1 ,

the actual bolung matenal.

and 2

/O /

N-274 03-17-80 Alternative Rules for Exami-09-07-82 nation of Weld Repairs for N-317 07-13-81 ASTM A276 Bar Section III, 07-01-82 . Division 1 06-30-86 Section III, Division 1 N-342 04-02-82 Use of SA-249 and SA-312 Comruction 04-02-85 Type 317 Stainless Steel,Section III, Division 1, Code Case N-274 was acceptable subject to Classes 1, 2, and 3 the following condition 14 in addition to those N-348 09-09-82 Use of SA-574 Socket Head conditions specified in the Code Case. Paragraph 09-07-85 Cap Screws, Section Ill, 6 should be expanded as follows: The ultrasonic D. vision i examination procedures shall be proven by actual demonstration, to the satisfaction of the Author- Code Case N-348 was acceptable subject to the ized Nuclear Inspector, that the procedures are following condition in addition to those condi-capable of detecting unacceptable cracks accord- tions specified in the Code Case: Applicants ing to Section XI requirements, should justify in their Safety Analysis Reports why use of these socket head cap screws will not 03 17-80 Use of Type XM-19 result in early failure from stress corrosion N-277 09-17-80 Austenitic Stainless Steel for cracking.

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

06-30-86 Forgings and Bars Below uCode Case N-265 was allowed to expire on 1-7-83 because of 700*F Without Stress Rupture an administrative error. It was reinstated on 9-1-83 with no technical Tests,Section III, Division 1 7 - changes. The Case is, therefore, considered in effect during that 02-14-83 SB-163 Ni-Fe-Cr-Mo-Cu period of time. Again, Code Case N-265 was allowed to expire on N-372 12-31-84 (mandatory annulment date). It was reinstated as N-M-1 12-31-83 Alloy 825 (UNS N08825) on 5-19-85. Because of thecircumstances and because there were Tubing,Section III, Division 1 no changes in the Code Case, the NRC considers that this Case was 10-28-83 Examination of Piping in effect during the period of 12-31-84 through 5-19-85. N-378 10-28-8616 Support Material,Section III,1 wIbe reason for the conditional accaptance of paragraph 6 is to f

make artain that there is a qualified ultrasonic testing procedure Division 1, Cl25 1 fi V capable of detecting small flaws and differentiating the small flaws

.from geometric reflecus. This paragraph does not in any way aher the *The annulment date of 12-31-84 that was listed in Revisions 24 and acceptance criteria as specified in paragraph 3. 25 was in error. 'Ihe annulment date should be 10-28-86.

1.85-9

N-383 07-25-83 Component Support Bolting, 1407-2 06-26-72 Time of Examination for Class 02-23-87 Section III, Division 1, 07-01-74 1, 2, and 3,Section III Classes 2, 3, and MC Vessels N-398 02-20-84 Reporting of Charpy-V Notch 1414-3 11-03-75 High Yield Strength Cr-Mo 02-20-87 Test Results, Section IH, 03-01-76 Steel for Section HI, Division Division 1 1, Class 1 Vessels Code Case N-398 is acceptable subject to the fol- Code Case 1414-3 was acceptable subject to the lowing candition in addition to those conditions folldwing condition in addition to those condi-specified in the Code Case: The Code Case is tions specified in the Code Case: The informa-not acceptable to steam generator or reactor tion required to be developed by Note 1 in the coolant pump supports. Applicants wishing to use Code Case should be provided in each referenc-this Code Case should indicate in the Safety ing Safety Analysis Report.

Analysis Report the component supports to l which the case is applied for review on a case-by- 1414-4 03-01-76 High Yield Strength Cr-Mo case basis. 08-09-77 Steel for Section IH, Divirion 1, Class 1 Vessels

3. Code Cases that were endorsed by the NRC in Code Case 1414-4 was acceptable subject to the a prior version of this guide and were superseded by following condition in addition to those condi-revised Code Cases on or after July 1,1974, should tions specified in the Code Case: The informa-be considered as not endorsed as of the date of the ASME action that approved the revised versio1 of tion required to be developed by Note 1 in the Code Case should be provided in each referenc-the Code Cases. These Code Cases that are no longer ing Safety Analysis Report.

endorsed are listed in the following by number, effective dates,is and title.17 1484-1 04-29-74 SB-163 Nickel-Chromium-11-04-74 Iron Tubing (Alloy 600) at a 1332-6 03-09-72 Requirements for Steel Forg- Specified Minimum Yield 01-08-79 ings, Section 111 and VIH, Strength of 40.0 Ksi, Division 2 Section IH, Class 1 1335-9 04-29-74 Requirements for Bolting 1484-2 11-04-74 SB-163 Nickel-Chromium-08-28-78 Materials 08-13-76 Iron Tubing (Alloy 600 and 1337-9 04-29-74 Special Type 403 Modified 690) at a Specified Minimum 04-28-75 Forgings or Bars, Section IU Yield Strength of 40.0 Ksi, 1337-10 04-28-75 Special Type 403 Modified Section IH, Class 1 05-15-78 Forgings or Bars, Section IH 1484-3 1344-5 08-13-76 SB-163 Nickel-Chromium-04-29-74 Nickel-Chromium, Age- (N-20) 08-30-79 Iron Tubing (Alloy 600 end (N-5) 01-08-79 Hardenable Alloys (Alicy 07-16-82 690) and Nickel-Iron-01-21-82 X750), Section 1H 05-19-85 Chromium Alloy 800 at a 12-13-82 09-05-85 Specified Minimum Yield 1358-5 11-03-75 High Yield Strength Steel, Strength of 40,0 Ksi, Section (N-7) 01-08-79 Section HI, Division 1 Class 1 IH, Division 1. Class 1 01-21-82 Vessels N-20-1 09-05 83 SB-163 Nickel-Chromium-12-13-82 12-07-87 Iron Tubing (Alloy 600 and Code Case 1358-5 was acceptable subject to the 690) and Nickel-Iron-following condition in addition to those condi- # mium Alloy 800 at a Specified Minimum Yield tions specified in the Code Case: The informa-tion required to be developed by Note 1 in the Strength of 40.0 Ksi, ,

Code Case should be provided in each referen< Secdon HI, Division 1 ing Safety Analysis Report.

14921e 10-29-71 st eld Heat Treatment, 1395-3 11-06-72 SA-508, Class 2 Forgings with ecyn I, HI ad M, 01-08-79 Modified Manganese Con-tent, Section IH or Section 1557-2 12-17-73 tee P oduct Refined by VHI, Division 2 01-08-79 Secondary Remelting 1618 03-02-74 Material for Core Support SEarber date--date Code Case was approved by ASME; later date - 03-03-75 Structures-Section HI, date revision of Code Case was approved by ASME.

Sub.;;;; ion NG

" 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 '* Code Case 149 Tis no longer listed by ASME as a Section III the ASME prior to hdy 1,1974.

Code Case and is therefore deleted from the acceptable listing.

1.85-10

Code Case 1618 was acceptable subject to the Forgings, Section 1, Section following conditions in addition to those specified III, and Section VIII, in the Code Case: Division 1 and 2 ,

1634 07-01-74 Use of SB-359 for Section III, I

a. Welding of age-hardenable alloy SA-453 ,

\

Grade 660 and SA-637 Grade,688 should be ,, 1634-1 0 2- Use of SB for Section III, performed when the material is m the solution- 08-13-76 Class 3 Construction treated condition. 1644 08-12-74 Additional Materials for Com-I

b. Use of alloy ASTM A-564 Grade 631 is 04-28-75 ponent Supports-Section not acceptable on a generic basis. III, Subsection NF, Class 1. j 2, 3, and MC Construction 1618-1 03-03-75 Material for Core Support Code Case 1644 was acceptable subject to the 03-01-76 StructuresSection III. foll wing condiuon in addinon to those condi-Subsection NG tions specified in the Code Case: The maximum Code Case 1618-1 was acceptable subject to the measured ultimate tensile strength of the compo-following condition in addition to those specified nent support material should not exceed 170 Ksi.

In the Code Case: Welding of age-hardenable al-loy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the 1644-1 04-28-75 Additional Materials for Com-solution-treated condition. 06-30-75 ponent Support-Section III, Subsection NF, Class 1, 2, 3, 1618-2 03-01-76 Material for Core Support and MC Construction (N-60) 01-08-79 Structures-Section III, Code Case 1644-1 was acceptable subject to the 01-21-82 Dmsion 1 Subsection NG following condition in addition to those condi-05-25-83 tions specified in the Code Case: The maximum Code Case 1618-2 was acceptable subject to the measured ultimate tensile strength of the compo-following condition in addition to those condi- nent support material should not exceed 170 Ksi.

tions specified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the mate- 1644-2 06-30-75 Additional Materials for Com-

\ rial is in the solution-treated condition. 11-03-75 ponent Supports-Section III, Subsection NF, Class 1.

N-60-1 05-25-83 Material f, re Support 2, 3 and MC Construction 09-17-84 Structures, won III, Code Case 1644-2 was acceptable subject to Dmston 1 the following condition in addition to those Code Case N-60-1 was acceptable subject to the conditions specified in the Code Case: The maxi-following condition in addition to those condi- mum measured ultimate tensile strength of the tions rpecified in the Code Case: Welding of age- component support material'should not exceed hardenable alloy SA-453 Grade 660 and SA-637 170 Ksi.

Grade 688 should be performed when the mate-rial is in the solution-treated condition. 1644-3 11-03-75 Additional Materials for Com-03-01-76 ponent Supports-Section N-60-2 09-17-84 Material for Core Support III, Subsection NF, Class 1, 09-05-85 Structures,Section III, 2, 3 and MC Construction Division 1 Code Case 1644-3 was acceptable subject to the Code Case N-60-2 was acceptable subject to the following condition in addition to those condi-following condition in addition to those condi- tions specified in the Code Case: The maximum tions specified in the Code Case: Welding of age- measured ultimate tensile strength of the compo-hardenable alloy SA-453 Grade 660 and SA-637 nent support material should not exceed 170 Ksi.

Grade 688 should be performed when the mate-rial is in the solution-treated condition. For SA-479 material, the maximum yield strength 1644-4 03-01-76 Additional Materials for Com-should not exceed 90,000 psiin view of the sus. 08-13-76 ponent Supports and Alter-ceptibility of this material to environmental nate Design Requirements for Bolted Joints, Section 111,

( cracking.

Division 1 Subsection NF,

( Class 1, 2, 3 and MC 1626 03-02-74 Normalized and Tempered 01-08-79 1-1/4 Cr Low Alloy Steel Construction 1.85-11

Code Case 1644-4 was acceptable subject to the Code Case 1644-6 was acceptable subject to the following conditions in addition to those specified following conditions in addition to those specified in the Code Case: The maximum measured ulti- in the Code Case: The maximum measured ulti-mate tensile strength (UTS) of the component mate tensile strength (UTS) of the component support material should not exceed 170 Ksi in support material should not exceed 170 Ksi in view of the susceptibility of high-strength materi- view of the susceptibility of high-strength materi-als to brittleness and stress corrosion cracking. als to. brittleness and stress corrosion cracking.

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

1644-5 08-13-76 Additional Materials for Com- 1644-7 11-21-77 Additional Materials for Com-03-03-77 ponent Supports and Alter. (N-71-7) 05-15-78 ponent Supports,Section III, nate DesiEn Requirements for Division 1, Subsection NF, Bolted Joints,Section III, Clars 1, 2, 3 and MC Compo-Division 1, Subsection NF, nent Supports

%ss 1, 2, 3 and MC Code Case 1644-7 was acceptable subject to the

" nstruccon following conditions in addition to those specified Code Case 1644-5 was acceptable subject to the in the Code Case: The maximum measured ulti-following conditions in addition to those specified mate tensile strength (UTS) of the component in the Code Case: The maximum measured ulti. support material should not exceed 170 Ksi in mate tensile strength (UTS) of the component view of the susceptibility of high-strength materi-support material should not exceed 170 Ksi in als to brittleness and stress corrosion cracking.

view of the susceptibility of high-strength mater. Certain applications may exist where a UTS value als to brittleness and stress corrosion cracking. of up to 190 Ksi could be considered acceptable Certain applications may exist where a UTS value for a material and, under this condition, the De-of up to 190 Ksi could be considered acceptable sign Specification should specify impact testing for a material and, under this condition, the De. for the material. For these cases, it should be sign Specification should specify impact testing demonstrated by the applicat.t that (1) the im-for the material. For these cases, it should be pact test results fer the material meet code re-demonstrated by the applicant that (1) the im. quirements and (2) the material is not subject to pact test results for the material meet code re- stress corrosion cracking by virtue of the fact that quirements and (2) the material is not subject to (a) a corrosive environment is not present and stress corrosion cracking by virtue of the fact that (b) the component that contains the material has (a) a corrosive environment is not present and essentially no residual stresses or assembly (b) the component that contains the material has stresses, and it does not experience frequent sus-essentially no residual stresses or assembly tained loads in service.

stresses, and it does not experience frequent sus-tained loads in service. 1644-8 05-15-78 Additional Materials for Com-(N-71-8) 01-07-80 ponent Supports,Section III, 1644-6 03-03-77 Additional Materials for Com- Division 1 Subsection NF, 11-21-77 ponent Supports and Class 1, 2, 3 arsd MC Compo-Alternate Design Require- nent Supports ments for Bolted Joints, Code Cne 16444 was acceptab!c subjcct to the Section III, Division 1, following conditions in addition to those specified Subsection NF, Class 1, 2, 3 in the Code Case: The maximum measured ulti-and MC Construction mate tensile strength (UTS) of the component 1.85-12

r - - - - - - - - - - - - - - -

support material should not exceed 170 Ks'. in of the fact that (a) a conosive environment is not view of the susceptibility of high-strength materi- present and (b) the component that contains the als to brittleness and stress corrosion cracking. material has essentially no residual stresses or as-Certain applications may exist where a UTS value sembly stresses, and it does not experience fre-of up to 190 Ksi could be considered acceptable quent sustained loads in service. In the last sen-for a material and, under this condition, the De- tence of paragraph 5.3, , reference should be sign Specification should specify impact testing made to paragraph 4.5.2.2, " Alternate Atmos-for the material. For these cases, k should be phere Exposure Time Periods Established by demonstrated by the applicant that (1) the im- Test," of the AWS D.1.1 Code for the evidence pact test results for the material meet code re- presented to and accepted by the Authorized In-quirements and (2) the material is not subject to spector concerning exposure of electrodes for stress corrosion cracking by virtue of the fact longer periods of time.

that (a) a corrosive environment is not present and (b) the component that contains the material N-71-11 06-17-82 Additional Materials for Com-has essentially no residual stresses or assembly 02-14-83 ponent Supports Fabiicated stresses, and it does not experience frequent sus- by Welding,Section III, Division 1 Subsection NF, tained loads in service. Class 1, 2, 3, and MC Component Supports 1644-9 01-07-80 Addinonal Materials for Com.

(N-71-9) 05-11-81 ponent Supports Fabricated Code Case N-71-11 was acceptable subject to the by Welding,Section III, following conditions in addition to those condi-Division 1. Subsection tions specified in the Code Case: The maximum NF, Class 1, 2, 3, and MC measured ultimate tensile strength (UTS) of the Component Supports component support material should not exceed 170 Ksi in view of the susceptibility of high-Code Case 1644-9 was acceptable subject to the strength materials to brittleness and stress corro-following condition in addition to those condi- s; n cracking. Certam applications may exist tions specified in the, Code Case: In the last sen- where a UTS value of up to 190 Ksi could be tence of paragraph 5.3, reference should be ,

considered acceptable for a matenal and, under made to paragraph 4.5.2.2, " Alternate Atmos- this condition, the Design Specification should 9

phere Exposure Time Periods Established by specify impact testing for the matenal. For these Test," of the AWS D.1.1 Code for the evidence cases, it should be demonstrated by the applicant presented to and accepted by the Authorized In- that (1) the impact test results for the material spector concerning exposure o1 electrodes for meet code requirements and (2) the matenal is longer periods of time. not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is not N-71-10 05-11-81 Additional Materials for Com- present and (b) the component that contains the 06-17-82 ponent Supports Fabricated material has essentially no residual stresses or as-by Welding Section III, sembly stresses, and it does not experience fre-Division 1, Subsection quent sustained loads in service in the last sen-NF, Class 1, 2, 3, and MC tence of paragraph 5.3, reference should be Component Supports made to paragraph 4.5.2.2, " Alternate Atmos-Code Case N-71-10 was acceptable subject to the phere Exposure Time Periods Established by Test," of the AWS D.1.1 Code for the evidence following conditions in addition to those condi.

presented to and accepted by the Authorized In-tions specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the spector concerning exposure of electrodes for longer periods of time.

component rupport material should not exceed 170 Ksi in view of the susceptibility of high- 02-14-83 Additional Materials for Com-N-71-12 strength materials to brittleness and stress corro- 02-20-84 ponent Supports Fabricated sion cracking. Certain applications may exist by Welding,Section III, where a UTS value of up to 190 Ksi could be Division 1, Class 1, 2, 3, and considered acceptable for a material and, under MC this condition, the Design Specification should specify impact testing for the material. For these Code Case N-71 12 was acceptable subject to the e cases, it should be demonstrated by the applicant that (1) the impact test results for the material meet code requirements and (2) the material is not subject to stress corrosion cracking by virtue fM10 wing condition in addition to those condi-tions specified in the Code Case: The maximum measured ultimate tensile strenSth (UTS) of th(

component support material should not exceed 1.85-13

170 Ksi in view of the susceptibility of high- not subject to stress corrosion cracking by virtue strength materials to brittleness and stress corro- of the fact that (a) a corrosive environment is not sion cracking. Certain applications may exist present and (b) the component that contains the where a UTS value of up to 190 Ksl could be material has essentially no residual stresses or as-considered acceptable for a material and, under sembly stresses, and it does not experience fre-this condition, the Design Specification should quent sustained loads in service. In the last sen-specify impact testing for the material. For these tence of paragraph 5.3, reference shouid be cases, it should be demonstrated by the applicant made to paragraph 4.5.2.2, " Alternate Atmos-that (1) the impact test results for the material phere Exposure Time Periods Established by meet code requirements and (2) the material is Test," of the AWS D.1.1 Code for the evidence not subject to stress corrosion cracking by virtue presented to and accepted by the Authorized In-of the fact that (a) a corrosive environment is not spector concerning exposure of electrodes for present and (b) the component that contains the longer periods of time. Paragraph 16.2.2 is not material has essentially no residual stresses or as- acceptable as written and should be replaced sembly stresses, and it does not experience frc- with the following: When not exernpted by quent sustained loads in service. In the last sen- 16.2.1 above, the postweld head treatment shall tence of paragraph 5.3, reference should be be performed in accordance with NF-4622 ex-made to paragraph 4.5.2.2, " Alternate Atmos- cept that for ASTM A-710 Grade A material, it phere Exposure Time Periods Established by shall be at least 1000*F (540*C) and shall not Test," of the AWS D.1.1 Code for the evidence exceed 1150*F (620'C) for Class 1 and Class 2 presented to and accepted by the Authorized In- material and 1175*F (640*C) for Class 3 mate-spector concerning exposure of electrodes for rial. The new holding time at temperature for longer periods of time. The provisions of para- weld thickness (nominal) shall be 30 mint.tes for graph 4.3 are not acceptable on a generic basis. 1/2 inch or less, I hour per inch for thickness Paragraph 16.2.2 is not acceptable as written and over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 should be replaced with the foihi a: When not minutes for each additional inch over 5 inches.

exempted by 16.2.1, above, & r;stweld heat The fracture toughness requirements as listed in treatment shall be performed in accordance with this Code Case apply only to piping supports and NF-4622 except that for ASTM A-710 Grade A not to Class 1, 2, and 3 component supports.

materialit shall be at ' east 1000*F (540*C) and The fracture toughness of Classes 1, 2, and 3 shall not exceed 1150*F (620*C) for Class 1 and component supports shall be characterized in ac-Class 2 material and 1175*F (640*C) for Class 3 cordance with paragraph 5.3.4 of the USNRC material. The new holding time at temperature Standard Review Plan (NUREG-0800) or on a for weld thickness (nominal) shall be 30 minutes case-by-case basis.

for 1/2 inch or less,1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> per inch for thickness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 N-71-14 12-05-25 Additional Materials for Sub-minutes for each additional inch over 5 inches. 12-16-86 section NF, Classes 1, 2, 3 and MC Component Supports N-71-13 02-20-84 Additional Materials for Sub- Fabricated by Welding, Sec-12-05-85 section NF, Classes 1, 2, 3 tion III, Division 1 and MC Component Supports Fabricated by W Iding, Code Case N-71-14 was acceptable subject to the Section III, Dmston 1 follow ng condition in addition to those condi-tions specified in the Code Case: The maximum Code Case N-71-13 was acceptable subject to the measured ultimate tensile strength (UTS) of the following condition in addition to those condi- component support material should not exceed tions specified in the Code Case: The maximum 170 Ksi in view of the susceptibility of high-measured ultimate tensile strength (UTS) of the strength materials to' brittleness and stress corro-component support material should not exceed sion cracking. Certain applications may exist 170 Ksi in view of the susceptibility of high- where a UTS value of up to 190 Ksi could be strength materials to brittleness and stress corro- considered acceptable for a material and, under sion cracking. Certain applications may exist this condition, the Design Specification should where a UTS value of up to 190 Ksi could be specify impact testing for the material. For these considered acceptable for a material and, under cases, it should be demonstrated by the applicant this condition, the Design Specification should that (1) the impact test results for the material specify impact testing for the material. For these meet code requirements and (2) the material is  !

cases, it should be demonstrated by the applicant not subject to stress corrosion cracking by virtue that (1) the impact test results for the material of the fact that (a) a corrosive environment is not meet code requirements and (2) the material is present and (b) the component that contains the 1.85-14

mat: rial has essentially no residual stresses or 1759 08-13-76 Material for Internal Pressure assembly stresses, and it does not experience fre- 05-15-78 Retaining Items for Pressure quent sustained loads in service. In the last Relief Valves,Section III, sentence of paragraph 5.3, reference should be Division 1 Class 1, 2, and 3 made to paragraph 4.5.2.2, " Alternate Atmos-(Q] phere Exposure Time Periods Established by Code Case 1759 was acceptable subject to the following condition in addition to those condi-Test," of the AWS D.1.1 Code for the evidence tions specified in the Code Case: Applicants us-presented to and accepted by the Authorized In- ing this Case should also use Code Case 1711 for spector concerning exposure of electrodes for the design of pressure relief valves.

longer periods of time. Paragraph 16.2.2 is not acceptable as written and should be replaced N-188 08-29-77 Use of Welded Ni-Fe-Cr-Mo-with the following: When not exempted by 05-15-78 Cu (Alloy 825) and Ni-Cr 16.2.1, above, the postwd head treatment shall Mo-Cb (Alloy 625) Tubing, be performed in accordance with NF-4622 ex- Section III, Division 1, cept that for ASTM A-710 Grade A material, it Class 3 shall be at least 1000*F (540'C) and shall not N-207 03-20-78 Use of Modified SA-479 Type exceed 1150*F (620*C) for Class 1 and Class 2 03-19-79 XM-19 for Section III, material and 1175'F (640'C) for Class 3 mate- Division 1, Class 1, 2 or 3 rial. The new holding time at temperature for Construction weld thickness (nominal) shall be 30 minutes for N-224 11-20-78 Use of ASTM A500 Grade B 1/2 inch or less, I hour per inch for thickness 05-11-81 and ASTM A501 Structural over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 Tubing for Welded Attach-minutes for each additional inch over 5 inches. ments for Section III, Class 2 The fracture toughness requirements as li;ted in and 3 Construction this Code Case apply only to piping supports and N-242 04-12-79 Materials Certification, Sec-not to Class 1, 2, and 3 component supports. 04-10-80 tion III, Division 1 Classes 1 2, 3, MC, and CS The fracture toughness of Classes 1, 2, and 3 Construction component supports shall be characterized in ac.

,A cordance with paragraph 5.3.4 of the USNRC Code Case N-242 was acceptable subject to the Standard Review Plan (NUREG-0800) or on a following condition in addition to those condi-

- case-by-case basis. tions specified in the Code Case: Applicants should identify the components and supports re-quiring the use of paragraphs 1.0 through 4.0 of 1682 01-29-75 Alternate Rules for Material the Code Case in their Safety Analysis Reports.

08-11-75 Manufacturers and Suppliers,Section III, Subarticle N-246-1 09-07-82 SB-169, Alloy C 61400, Sec-NA-3700 05-25-83 tion III, Division 1 Class 3 1714 08-11-75 Postweld Heat Treatment of N-249 01-07-80 Additional Materials for 07-11-774 P-1 Material,Section III, 05-11-81 Component Supports Fabri-Class MC cated Without Welding, Sec-07-11-774 Postweld Heat Treatment of tion III, Division 1, Subsec-1714-1 tion NF, Class 1, 2,3 and MC (N-102-1) 08-28-78 P-1 Material,Section III, Component Supports Class MC 1722 11-03-75 Vacuum, Carbon Deoxidized Code Case N-249 was acceptable subject to the 01-08-79 SA-508 Forgings,Section III, following condition in addition to those condi-Division 1, and VIII, Division tions specified in the Code Case: Footnote 2 of 1 and 2 the Code Case should apply to all materials listed 1741 12-22-75 Interim Rules for the Re- in Tables 1,2, 3,4, and 5 of the Code Case and 01-14-77 quired Number of Impact should be so indicated on line 5 of the " Reply."

Tests for Rolled Shapes, Sec-tion III, Division 1 Subsec- N-249-1 05-11-81 Additional Materials for tion NF, Component Supports 06-17-82 Component Supports Fabri-1755 04-26-76 Alternative Rules for Exami- cated Without Welding, b 01-14-77 nation of Welds in Piping, Class 1 and 2 Construction,Section III, Division 1, Subsection NF, Class 1, 2, 3,

( Section III, Division 1 and MC' Component Supports 1.85-15

Code C:se N-249-1 was acceptable subj:ct to ths USNRC Standard Review Plan (NUREG-0800) following condition in addition to those condi- or on a case-by-case basis. The following is to be tions specified in the Code Case: Paragraph 7 of added to paragraph (5) of the Case: For these the " Reply" should reference the requirements cases, it should be demonstrated by the owner of NF-2600 instead of NF-2800. This is a typo- that (1) the impact test results for the material graphical error in that NF-2800 does not exist. meet Code requirements and (2) the materialis not subject to stress corrosion cracking by virtue N-249-2 06-17-82 Additional Materials for Sub- of the fact that (a) a corrosive environment is not 02-14-83 section NF Class 1, 2, 3, and present and (b) the component that contains the MC Component Supports material has essentially no residual stresses or as-Fabricated Without Welding, sembly stresses, and it does not experience fre-Section III, Division 1 quent sustained loads in service.

N-249-3 02-14-83 Additional Materials for Sub-07-20-84 section NF Class 1, 2, 3, and N-249-7 09-05-85 Additional Material for Sub-MC Component Supports 12-05-85 section NF, Classes 1, 2, 3, Fabricated Without Welding, and MC Component SupportsSection III,. Division 1 Fabricated Without Welding, N-249-4 02-2044 Additional Material for Sub. Section III Division 1 09-17-84 section NF, Classes 1, 2, 3, Code Case N-249-7 was acceptable subject to the and MC Component Suppons following conditions in addition to those condi-Fabricated Without Weiding, tions specified in the Code Case: The fracture Section III, Division 1 toughness requirements apply only to piping sup-The fracture toughness requirements as listed in ports and not to Classes 1, 2, and 3 component Code Case N-249-4 apply only to piping supports supports. The fracture toughness of Classes 1,2, and not to Classes 1, 2, and 3 component sup- and 3 component supports should be character-ports. The fracture toughness of Classes 1,2, and tzed m accordance with paragraph 5.3.4 of the 3 component supports should be characterized in USNRC Standard Review Plan (NUREG-0800) accordance with paragraph 5.3.4 of the USNRC or on a case-by-case basis. The following is to be added to paragraph (5) of the Case: For these Standard Review Plan (NUREG-0800) or on a case-by-case basis. cases, it should be demonstrated by the owner that (1) the impact test results for the material N-249-5 09-17-84 Additional Material for Sub- meet Code requirements and (2) the material is 04-08-85 section NF, Classes 1, 2, 3, not subject to stress corrnsion cracking by viitue and MC Component Supports of the fact that (a) a corrosive environment is not Fabricated Without Welding, present and (b) the component that contains the Section III, Division 1 material has essentially no residual stresses or a m e s s, a es not expedence he-The fracture toughness requirements as listed in quent sustained loads in service.

. Code Case N-249-5 apply only to piping supports and not to Classes 1, 2, and 3 component sup- N-249-8 12-05-85 Additional Material for Sub-ports. The frA:ture toughness of Classes 1,2, and 12-16-86 section NF, Classes 1, 2, 3, 3 component supports should be characterized in and MC Component Supports accordance with paragraph 5.3.4 of the USNRC Fabricated Without Welding, Standard Review Plan (NUREG-0800) or on a Section III, Division 1 ase-ty-case basis.

N-249-6 Code Case N-249-8 was acceptable subject to the 04-08-85 Additional Material for Sub- following conditions in addition to those condi-09-05-85 section NF, Classes 1, 2, 3, tions specified in the Code Case: The fracture and MC Component Supports toughness requirements apply only to piping sup-Fabricated Withoat Weldmg, ports and not to Classes 1, 2, and 3 component Section III. Division 1 supports. The fracture toughness of Classes 1,2, Code Case N-249-6 was acceptable subject to the and 3 component supports should be character-following conditions in addition to those cond!- ized in accordance with paragraph 5.3.4 of the tions specified in the Code Case: The fracture USNRC Standard Review Plan (NUREG-0800) toughness requirements apply only to piping sup- or on a case-by-case basis. The following is to be pons and not to Classes 1, 2, and 3 component added to paragraph (5) of the Case: For these si yports. The fracture toughness of Classes 1,2, cases, it should be demonstrated by the owner and 3 component supports should be character- that (1) the impact test results for the material ized in accordance with paragraph 5.3.4 of the meet Code requirements and (2) the material is 1.85-16

not subject to stress corrosion cracking by virtue N-379 04-04-83 Bimetallic Tubing Section III, of the fact that (a) a corrosive environment is not 07-18-85 Division 1. Class 1 present and (b) the component that contains the N-418 12-05-84 Use of Seamless Ni-Fe-Cr-material has essentially no residual stresses or as- 07-30-86 Mo-Cu Low Carbon (UNS S sembly stresses, and it does not experience fre-quent sustained loads in service.

NQ8028 and UNS N08904)

Tubing,Section III, Division 1, Classes 2 and 3

4. Code Cases for Class 1 components that are N-26518 01-07-80 Modified SA ,487 Castings, not on the approved list of this Suide (paragraph C.1) 09-01-83 Section III, Division 1, Class 1 or other regulatory guides, or for which authorization 12-3b84 by the Commission has not been granted, are not 05-19-85 acceptable for Class 1 components.

N-299 11-17-80 Use of Nickel-Chromium-11-28-83 Molybdenum-Columbium 5. Code Cases for other classes of components 07-18-85 Alloy 625 Forgings, Section that are not on the approved list of this guide III, Division 1 Class 2 and (paragraph C.1) or other regulatory guides should be Class 3 Components considered not acceptable on a generic basis.

N-321 07-13-81 Use of Modified SA-249, 07-13-84 Type 304 for Section III' D. IMPLEMENTATION 12-05-85 Division 1 Class 1 Construction The purpose of this section is' to provide N-337 04-02-82 Use of AGTM B525-70 Grade information to applicants regarding the use of this 05-19-85 II, Type II, Sintered regulatory guide.

07-18-85 Austenitic Stainless Steel for 1. Except for those Code Cases that have been Class 2, 3, and MC Compo- annulled by action <.l the ASME, the NRC stiff has nent Standard Supports, found the Code Cases listed in this regulatory guide Section III, Division 1 under cegulatory position C.1 acceptable for N-352 07-16-82 Use of SA-638 Grade 660 appropriate use. Other Code Cases may be 05-19-85 Forgings and Bars Below considered for use in acco. dance with footnote 6 of 07-18-85 700*F Without Stress Rupture the Codes and Standards rule, $50.55a of 10 CFR O N-370 Tests,Section III, Dmston 1 02-14-83 Modified SA-705 Grade 07-18-85 XM-13 Forgings,Section III, Part 50*

2. Components ordered to a specific version of a Division 1 Code Case need not be changed because a N 370-1 07-18-85 Modified SA-705 Grade subsequent revision of the Code Case is listed as the 12-05-85 XM-13 Forgings,Section III, approved version in this guide.

Division 1 3. Components ordered to a Code Case that was N-371 02-14-83 12 Cr-1W-1Mo-1/4V Marten- previously approved for use need not be changed 07-18-85 sitic Stainless Steel Valve In- because the Code Case has been subsequently ternals,Section III, Division 1 annulled.

" Code Case N-265 was allowed to espire on 1-7-83 because of an 4. Code Cases on the approved list may be administrative error. It was reinstated on 9-1-63 with no technical changes.The Casc is, therefore, considered in effect during that period applied to components that were in process of of time. Again, Code Case N-265 was allowed to expire on 12-31-84 construction prior to the effective date of the Code (mandatory annuhnent date). It was reinstated as N-265-1 on 5-19-85. Case within the limits specified in the Code Case and Because of the circumstances and because there were no changes in applicable regulations or recommended in other the Code Case. the NRC considers that this Case was in effect during the period of 12-31-84 through 5-19-85. regulatory guides.

O 1.85-17

APPENDIX NUMERICAL LISTING OF CODE CASES

• 1337-11 (N-4-11) N 224-1 - N-367 N-7-1 N-246-2 N-370-2 1474-1 (N-17) l N-249-9 N-371-1 l N-20-2 N-265-1

~

N-379-1 N-294 N-404 N-60-3 N-321-1 N-418-1 N-M

~ ' ~

1754 (N-126) 1755-1 (N-127) N-337-1 N-439 1759-1 (N-131-1) N-348-1 N-440 N-188-1 N-351 N-441 N-205 N-353 N-443

• Code Caw 1C4 was inadvertently listed in the appendix of Regulatory Guide 1.85, Revision 1.

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