Text

Rev 31 to Reg Guide 01.085, Materials Code Case Acceptability ASME Section Iii,Division 1
	ML20195F559
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Issue date:	05/30/1999
From:	; NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
To:	;
References
	TASK-*****, TASK-RE REGGD-01.085, REGGD-1.085, NUDOCS 9906150028
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U.S. NUCLEAR REGULATORY COMMISSION

/7 /*uagg Revision 31 May 1999 DE

$***** ) OFFICE OF NUCLEAR REGU REGULATORY GUIDE 1.85 (Draft was issued as DO-1049)

MATERIALS CODE CASE ACCEPTABILITY ASME SECTION lli, DIVISION 1 A. INTRODUCTION formed. Where generally recognized codes and stan-I dards are used, Criterion 1 requires that they be identi-Section 50.55a," Codes and Standards,"of 10 CFR fied and evaluated to determine their applicability Part 50," Domestic Licensing of Production and Uti-adequacy, and sufficiency and be supplemented or lization Facilities," requires, in part, that components modified as necessary to ensure a quality product in of the reactor coolant pressure boundary be designed, keeping with the required safety function.

fabricated, erected, and tested in accordance with the requirements for Class 1 components of Section III, Creerion 30," Quality of Reactor Coolant Pressure "NuclearPowerPlant Components,"I of the American Boundary," of the same appendix requires,in part, that Society of Mechanical Engineers (ASME) . Boiler and componemts that are part of the reactor coolant pressure Pressure Vessel Code or equivalent quality standards. boundary be designed, fabricated, erected, and tested to Footnote 6 to 10 CFR 50.55a states that the use of spe- the highest quality standards practical.

v cific Code Cases may be authorized by the Commission Appendix B," Quality Assurance Criteria for Nu-upon request pursuant to 10 CFR 50.55a(a)(3), which clear Power Plants and Fuel Reprocessing Plants," to requires that proposed alternatives to the described re- 10 CFR Part 50 requires, in part, that measures be es-quirements or portions thereof provide an acceptable tablished for the control of special processing of materi-level of quality and safety. als and that proper testing be performed.

General Design Criterion 1, " Quality Standards This regulatory guide lists those Section III AS ME r.nd Records,"of Appendix A," General Design Crite. Code Cases oriented to materials and testing that are ria for Nuclear Power Plants," to 10 CFR Part 50 re. generally acceptable to the NRC staff forimplementa-quires, in part, that structures, systems, and compo, tion in the licensing oflight-water-cooled nuclear pow-nents important to safety be designed, fabricated, er plants.This guide is being revised to update the NRC

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erected, and tested to quality standards commensurate with the importance of the safety function to be per.

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

cN.Ec#$aYk e $"v*enYNe k,New k1 -5 P onc This regulatory guide contains no information / J (212)591-8500; fax (212)591-8501. collection activities and, therefore, is not subject to the USNRC REGULATORY GUIDES The guides are issued in the folicmng ten broad divisons:

w as to the C at for the 1. Power Reactom 6. Products

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1 enuance of a pommt or license by the Comnuem Smgie copies of regulatory guides may be obtained free of charge by wribng to the Repro-

/' Thss guide was lesued after consideranari of comments recoved from the public. Com. ducDon and Distribunon Services Secton. Office of sno Cruelinformanon Officer U $ Nu-

\ mervs and suggeehons fo' improvements in those guides are encouraged at aN tmos, and clear Regdatuy Canmenton, WaaNnm DC mm p Max m @Mm 11 be appropetate, to accommodate comments and to reflect new in- or by smad to DISTRIBUTION @NRC GOV -a

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requirements of the Paperwork Reduction Act of 1980 no conflicts with other recommended limitations re-(44 U.S.C. 3501 et seq.). sulting from Code Case usage.

B. DISCUSSION Acceptance or endorsement by the NRC staff ap-plies only to those Code Cases or Code Case revisions The Boiler and Pressure Vessel Committee of the with the date of ASME approval as shown in the Regu-ASME publishes a document entitled " Code Cases."1 latory Position of this guide. Earlier orlater revisions of Generally, the individual Code Cases that make up this a Code Case are not endorsed by this guide. New Code document explain the intent of Code rules or provide Cases will require evaluation by the NRC staff to deter-for alternative requirements under special circum- mine whether they qualify for inclusion in the approved stances. list. Because of the continuing change in the status of Most Code Cases are eventually superseded by re. Code Cases, it is planned that this guide will require pe-vision to the Code and then are annulled by action of the riodic updating to accommodate new Code Cases and ASME. In such cases, the intent of the annulled Code any revisions of existing Code Cases.

Case becomes part of the revised Code, and therefore C. REGULATORY POSITION continued use of the Code Case intent is sanctioned un-der the rules of the Code. In other cases, the Code Case 1. ACCEI' TABLE CODE CASES is annulled because it is no longer acceptable or there is The Section III ASME Code Cases2 listed below no further requirement for it. A Code Case that was ap- (by number, date of ASME approval, and title) are ac-proved for a particular situation and not for a generic ceptable to the NRC staff for application in .he application should be used only for construction of the construction of components for light-water-cooled approved situation because annulment of such a Code nuclear power plants. Their use is acceptable within the ,

Case could result in construction tha' would not meet limitations stated in the " Inquiry" and " Reply" sections Code requirements. of each individual Code Case, within the limitations of The Code Cases listed in this guide are limited to such NRC or other requirements as may exist, and within the additional limitations recommended by the those cases applicable to Section III that are oriented to, NRC staff given with the individual Code Cases in the ward materials and testing.

listing. The categorization of Code Cases used in this All published Code Cases in the area of materials guide is intended to facilitate the Code Case listing and and testing that are applicable to Section ill of the Code is not intended to indicate a limitation on its usage.

and were in effect on May 12,1994,* were reviewed for inclusion in this guide. In addition to the listing of ac. a. Materials-Oriented Code Cases (Code Case ceptable Code Cases, this revision of the guide includes Number, Date of ASME Approval,3 and title) listings of (1) Code Cases that were identified as ac- (1) Code Cases Involving Plate ceptable in a prior version of this regulatory guide and N-7-1 12-13-82 liigh Yield Strength Steel, Sec-that were annulled after the ongmal issuance of tlus 02-20-86 tion III, Division 1, Class 1 guide (June 1974) and (2) Code Cases that were identi- , 02-20-89 Vessels fled as acceptable in a prior version of this regulatory 02-05-92 guide and that were superseded by revised Code Cases after the original issuance of this guide (June 1974). (2) Code Cases Involving Pipe and Tubes Code Cases that are not listed herein are either not en- N-20-3 11-30-88 SB-163 Nickel-Chromium-Iron dorsed or will require supplementary provisions on an 12-16-91 Tubing (Alloy 600 and 690) individual basis to attain endorsement status, and Nickel-Iron-Chromium The endorsement of a Code Case by this guide Alloy 800 at a Specified Mini-constitutes acceptance of its technical position for ap- mum Yield Strength of 40.0 plications not precluded by regulatory or other require- Ksi and Cold Worked Alloy ments or by the recommendations in this or other regu- 800 at a yield strength of 47.0 latory guides. Contingent endorsement is indicated in Ksi, Section Ill, Division 1, Regulatory Position C.1.a for specific cases. llowever, Class 1 it is the responsibility of the user to make certain that no regulatory requirements are violated and that there are 2A numerical hsting of the Code Cases appears in the appendix.

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

l)nes indicate substantive changes from Revision 30. which the Code Case was reaffirmed by the AsME.

1.85 - 2

N 188-1 05-15-78 Use of Welded Ni-Fe-Cr-Mo- (3) Cod:s Ceses Involving B:rs and Forgings 07-13-81 Cu (Alloy 825) and Ni-Cr-Mo-1337-11 05-15-78 Special Type 403 Modified (S 07-13-84 Cb (Alloy 625) Tubing, (N-4-11) 07-13-81 Forgings or Bars, Section 111,

( 07-13-87 Section III, Division 1, Class 2 07-13-84 Division 1, Class 1 and CS 08-14-90 and 3 07 13-87 08-14-93 08-14-90 08-14-93 N-294 08-25-80 SB-148 Alloy 952 and 954, N-370-2 12-05-85 Modified SA-705 Grade 05-25-83 and SB-62 Alloy 836 Fittings, 12-05-88 XM-13 Forgings,Section III, 07-30-86 Section III, Division 1, Class 2 12-16-91 Division 1 07-30-89 07-27-92 N-469 03-08-89 Martensitic Stainless Steel for 04-30-92 Class 1,2, and 3 Components,Section III, Division 1 N-404 04-05-84 Annealed Alloy UNS N06625 04-05-87 Over UNS N06600 Bimetallic (4) Code Cases Involving General Usage 12-11-89 Tubing,Section III, Division 1, N-60-5 02-15-94 Material for Core Support 12-11-92 Class 1 Structures,Section III, Division 1 Code Case N-404 is acceptable subject to the fol-Code Case N-60-5 is acceptable subject to the fol-lowing conditions in addition to those conditions speci-lowing condition in addition to those conditions speci-fied in the Code Case: The outside layer of the bimetal-fled in the Code Case: Welding of age-hardenable alloy lic tubing should be limited to a minimum of 5 percent SA-453 Grade 660 and SA-637 Grade 688 should be and to a maximum of 40 percent of the wall thickness.

performed when the material is in the solution-treated The tolerance on the outside layer of material should condition. The maximum yield strength of strain-not exceed -0.000 to +0.007 inches of the specified de-hardened austenitic stainless steel should not exceed f's sign wall thickness. 90,000 psi in view of the susceptibility of this material

\j to environmental cracking.

N-418-1 07-30-86 Use of Seamless Ni-Fe-Cr-Mo. N-71-16 02-12-93 Additional Materials for Sub-07-30-89 Cu Low Carbon (UNS N08028 section NF, Classes 1,2,3 and 07-27-92 and UNS N08904) Tubing, MC Component Supports Fabri.

Section III, Division 1, Classes cated by Welding,Section III, 2 and 3 Division 1 N-439 02-23-87 Use of 20Cr-18Ni-6Mo (Alloy Code Case N-71-16 is acceptable subject to the fol-12-11-89 UNS S31254) Forgings, I wing conditions in addition to those conditions speci-12-11-92 Plate, Seamless and Welded fled in the Code Case: The maximum measured ulti-Pipe, and Welded Tube, Class 2 mate tensile strength (UTS) of the component support and 3 Construction,Section III, material should not exceed 170 Ks1 m view of the sus-Division 1 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-N-441-1 11-25-92 Use of 20Cr-18Ni-6Mo (Alloy ered acceptable for a material and, under this condition, UNS S31254) Fittings, Class 2 the Design Specification should specify impact testing and 3 Construction,Section III, for the material. For these cases, it should be demon-Division 1 strated by the applicant that (1) the impact test results for the material meet code requirements and (2) the ma-N-466-1 04 30-90 Modified 9Cr-1Mo Material, terial is not subject to stress corrosion cracking by vir-02-12-93 Section III, Division 1, Classes tue of the fact that (a) a corrosive environment is not 1' ~ and 3 present and (b) the component that contains the mate-

/7 rial has essentially no residual stresses or assembly

(~j N-502 02-05-92 SA 268, Grade 26-3-3 (UNS stresses, and it does not experience frequent sustained S44660)Section III, Division 1, loads in service. In the last sentence of paragraph 5.3, Classes 2 and 3 reference should be made to paragraph 4.5.2.2," Alter-1.85 -3

nate Atmosphere Exposure Time Periods Established cated Without Welding, Section by Test," of the AWS D.1.1 Code for the evidence pre- III, Division 1 sented to and accepted by the Authorized Inspector ccmcerning exposure of electrodes for longer periods of Code Case N-249-13 is acceptable subject to the time. Paragraph 16.2.2 is not acceptable as written and following condition < in addition to those conditions i should be replaced with the following: When not ex. specified in the Code Case: The fracture toughness re-empted by 16.2.1, above, the postweld heat treatment quirements apply only to piping supports and not to shall be performed in accordance with NF-4622 except Classes 1,2, and 3 component supports. The fracture that for ASTM A-710 Grade A material,it shall be at toughness of Classes 1,2, and 3 component supports should be characterized in accordance with paragraph least 1000 F (540 C) and shall not exceed 1150 F .

(620 C) for Class 1 and Class 2 material and 1175 F 5.3.4 of the USNRC Standard Review Plan (NU-(640*C) for Class 3 material. The new holding time at R EG-0800) or on a case-by-case basis. The following is temperature for weld thickness (nominal) shall be 30 to be added to paragraph (e) of the Case: For these minutes for 1/2 inch or less,1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months per inch for thick- cases, it should be demonstrated by the owner that (1) ness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months plus 15 min- the impact test results for the material meet Code re-utes for each additional inch over 5 inches. The fracture . quirements and (2) the material is not subject to stress toughness requirements as listed in this Code Case ap- corrosion cracking by virtue of the fact that (a) a corro-ply only to piping supports and not to Class 1,2, and 3 sive environment is not present and (b) the component component supports. The fracture toughness of Classes that contains the material has essentially no residual 1,2, and 3 component supports shall be characterized in stresses or assembly stresses, and it does not experience accordance with paragraph 5.3.4 of the USNRC Stan- frequent sustained loads in service.

dard Review Plan (NUREG-0800) or on a case-by-case basis. N-265-1 05 19-85 Modified SA-487 Castings, 05-19-88 Section III, Division 1, Class 1 03-14-91 !

1759-1 05-15-78 Material for Internal Pressure 03-14-94 (N-131-1) 07-13-81 Retaining Items for Pressure 12-11-81 Relief Valves,Section III, N-438-3 07-27-92 UNS NO8367 Material, Section 12-05-84 Division 1, Class 1,2, and 3 III, Division 1, Class 2 and 3 12-05-87 "**'""

12-03-90 12-03-93 N-440 02-23-87 Use of 20Cr-18Ni-6Mo (Alloy 12-11-89 UNS 393254) Castings, Code Case 1759-1 is acceptable subject to the fol- 12-11-92 Class 2 and 3 Construction, lowing condition in addition to those conditions speci- Section III, Division 1 fled in the Code Case: Applicants using this Case ;

should also use Code Case 1711 for the design of pres. N-443-1 03-08-89 liigh Yield Strength Cr-Mo sure relief valves. 04-30-92 Steel, Class 1 Components,Section III, Division 1 -

N-205 05-15-78 Use of Ductile Iron SA-395 for 07-13-81 Section III, Division 1, Class 3 N 474-2 12-09-93 Design Stress Intensities and Yield Strength Values for UNS 07-13-84 Construction N06690 With a Minimum Spe-07-13-87 08-14-90 cified Yield Strength of 35 ksi, Class 1 Components, Section 08-14-93 III, Division 1 N-246-2 05-25-83 SB-169, Alloy C61400, Sec- N-492-1 05-11-94 Grade 9 Titanium Alloy, Sec-07-30-86 tion III, Division 1, Class 3 tion III, Division 1, Class 1,2, 07-30-89 and 3 07-27-92 N-497-1 12-09-93 Use of Fe-Ni-Cr-Mo-N ;

N-249-13 05-11-94 Additional Material for Subsec- (CN-3MN) Cast Materials, Sec-tion NF, Classes 1,2,3, and tion III, Division 1, Class 2 and MC Component Supports Fabri- 3 Construction 1.85 - 4 I

b, Testing-oriented Cod 2 C:ses 1334-3 04-29-74 Requirements for Corrosion-(N-2) 01-08-79 Resisting Steel Bars and (1) Code Case Involving Plates 01-01-81 Shapes,Section III h N-329 (2) Code Case Involving Bars and Forgings 12-11-81 Examination of Bar Material, 1335-10 08-28-78 Requirements for Bolting (N-3-10) 08-28-81 Materials,Section III 12-05-84 Section III, Division 1, Class 1 09-16-84 12-05-87 12-03-90 N-5-1 12-13-82 Nickel Chromium Age Harden-12-03-93 12-13-85 able Alloys (Alloy X750),

Section III, Division 1, Classes (3) Code Case Involving Pipe and 'Ibbes 1,2,3, MC, and CS (4) Code Case Involving General Usage 1345-2 03-09-72 Requirements for Nickel-N-351 07-16-82 Use of Subsize Charpy V- (N-6) 03-01-79 Molybdenum-Chromium-Iron 05-19-85 Notch Specimens, Section All ys,Section III 05-19-88 III, Division 1 1395-4 01-08-79 SA-508, Class 2 Forgings with 03-14-91 (N-9-4) 07-01-82 Modified Manganese Content, 03-14-94 Section III N-484-1 12-16-91 Real Time Radioscopic Ex- 1407 3 07-01-74 Time of Examination for amination of Welds, Class 1 (N-10) 01-08-79 Classes 1,2, and 3,Section III Components, Section 111, Divi- 01-21-82 Vessels sion 1 09-17-84 N-510 12-09-93 Borated Stainless Steel for 09-17-87 Class CS Core Support Struc-1412-4 11-03-75 Modified High Yield Strength tures and Class 1 Components, 01-01-77 Steel for Section III, Division j Section III, Division 1 1, Class 1 Vessels V N-525 12-09-93 Design Stress Intensities and Yield Strength Values for UNS Code Case 1412-4 was acceptable subject to the N06690 with a Mimmum Spect-following condition in addition to those conditions spe-fied Yield Strength of 30 Ksi, cified in the Code Case: The information required to be Class 1 Components, Section developed by Note 1 in the Code Case should be pro-III, Division 1 vided in each referencing Safety Analysis Report.

The material given in the Inquiry section of the Code

2. ANNULLED CODE CASES Case should be SA-508, Class 4b,instead of SA-508, Class 4~

Code Cases that were endorsed by the NRC in a prior version of this guide and were later annulled by 1414 5 08-29-77 High Yield Strength Cr-Mo l action of the ASME should be considered as deleted (N-11-5) 08-29-80 Steel for Section III, Division from the list of acceptable Code Cases as of the date of 1, Class 1 Vessels the ASME action that approved the annulment. Such Code Cases that were annulled on or after July 1,1974, Code Case 1414-5 was acceptable subject to the are listed in the following by number, effective dates,4 f !! wingc nditionmadditiontothoseconditionsspe-and title'5 cified in the Code Case: The mformation required to be developed by Note 1 in the Code Case should be pro-1141 1 08-31-61 Foreign Produced Steel vided in each referencing Safety Analysis Report.

07-23-76 1423-2 03-09-72 Wrought Type 304 and 316 1332-7 01-08-79 Requirements for Steel Forg- 07-01-77 with Nitrogen Added, Sections (N-1-7) 07-01-82 ings,Section III, Division 1 I, III, VIII, Division 1 and 2 gy 4 Earlier date-date Code Case was approved by AsME; later date--date Code Case 1423-2 was acceptable subject to com-ph,ance with the recommendations contained in Regu-

. lh ' Code Case was annoued.where more ihan two dates appear.the iasidate Qd'y,,',hatjhe

, , , ,Code , Case 9 g an e

e middle date (or dates) latory Guides 1.31, " Control of Ferrite Content in 8

Code Cases 1401 -1,1493-1, and l599, which were listed in the original Stainless Steel Weld Metal," and 1,44," Control of the issue of this guide, were annulled by AsME action prior to July 1,1974. Use of Sensitized Stainless Steel."

1.85 - 5

1434-1 03-09-72 Postweld Heat Treatment of cified in the Code Case: The information required to be 01-01-78 SA-487 Class 8N Steel Cast- developed by Note 1 in the Code Case should be pro-ings,Section III vided in each referencing Safety Analysis Report.

1456-2 06-25-73 Substitution of Ultrasonic Ex- 15296 06-29-72 Materials for Instrument Line (N-15) 03-01-79 amination for Progressive 07-01-73 Fittings, Section 111 Penetrant or Magnetic Particle 1531 08-14-72 Electrical Penetrations, Special Examinations of Partial Pene- 03-21-77 Alloys for Electrical Penetra-tration and Oblique Nozzle At- tion Seals,Section III tachment Welds, Section 111 1532 08-14-72 Section III, Class 3 Compo-1474-1 10-29-71 Integrally Finned Tubes for 01-01-78 nents Made of 8 Percent and 9 (N-17) 01-08-79 Section 111 Percent Nickel Steel 01-21-82 01-21-85 1542-1 04-29-74 Type 403 Forgings or Bars for 01-21-88 (N-33) 01-08-79 Bolting Material,Section III 01-21-91 01-21-82

~

1475-16 03-02-74 Ferritic-Austenitic Stainless 07-01-75 Steel Seamless Tubes for Sec. 1557-3 01-08-79 Steel Products Refined by Sec-tion 111, Class 2 and 3 (N-37-3) 07-01-82 ondary Remelting,Section III Construction and VIII, Division 1 and 2 1498-1 11-06-72 SA-508-Class 2 and 3, Mini. 1567 03-03-73 Testing Lots of Carbon and 01-08-79 mum Tempering Temperature, 01-01-78 Low Alloy Steel Covered Elec-(N-22) 07-01-82 Section III trodes,Section III 1515 03-09-72 Ultrasonic Examination of 1568 03-03-73 Testing Lots of Flux Cored and

/

07-01-77 Ring Forgings for Shell Sec. 01-01-78 Fabricated Carbon and Low tions,Section III, Class 1 Ves- Alloy Steel Welding Elec-sels trodes,Section III 1521-1 04-29-74 Use of H-Grades of SA-240, 1571 03-03-73 Additional Material for SA-234 01-01-78 SA-479, SA-336, and SA-358, (N-41) 01-08-79 Carbon Steel Fittings, Section Section III 01-21-82 III 01-21-85 Code Case 1521-1 was acceptable subject to com-pliance with the recommendations contained in Regu. 1578 06-25-73 SB-167 Nickel-Chromium-Iron latory Guides 1.31, " Control of Ferrite Content in (N-43) 01-08-79 (Alloy 600) Pipe or Tube, Sec-Stainless Steel Weld Metal," and 1.44," Control of the 07-01-82 ion III Use of Sensitized Stainless Steel." 1583 06-25-73 Use of 80-40 Carbon Steel 1527 06-26-727 Integrally Finned Tubes, Sec- 03-21-77 Castings, Section Ill (N-26)' 01-08-79 tion III 15876 08-13-73 SA-508 Class 3 Forgings with 01-21-82 12-31-75 0.4/1.0 Ni for Section Ill and 01-21-85 VIII, Division 2 Construction 1590 08-13-73 Chemical Analysis Variations, 03-21-77 Section III Construction 1528-3 11-03-75 Iligh Strength Steel SA-508, 01-01-78 Class 2 and SA-541, Class 2 1602-1 04-29-74 Use of SB-42 Alloy 122, 12-31-74 SB-111 Alloys 122,715 and Forgings,Section III, Class 1 706, SB-171 Alloys 715 and Components 706 and 58-466 Alloys 706 Code Case 1528-3 was acceptable subject to the and 715,Section III, Class 2 following condition in addition to those conditio ns spe- and 3 Components 6 code case was annuited on date as indicated. but the annulme nt was first

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so indicated in Revision 12 of this guide. 07-01-74 Section Limits Orientation and 7 corrected Date. Location of Specimens 1.85 - 6

\ _ _ _ _ _ _ _ _ _ _ _ -

1605 11-05 73 Cr-Ni-Mo-V Bolting Material 1650 08-12-74 Use of SA-414 Grade C for 1 11-20-78 for Section III, Class 1 Compo- 12-31-74 Class 2 and 3 Components, O 03-17-80 nents Section III, Division 1 b 1608-1 12-17-73 Use of ASME SB-265, 1664 11-04-74 Use of Cr-Ni-Fe-Mo-Cu-Cb 03-21-77 SB-337, SB-338, SB-348, and 03-21-77 Stabilized Alloy Cb-3 for Sec-SB 381, Grades 1,2,3, and 7 tion III Class 2 and 3 Construc-Unalloyed Titanium and tion ASTM B-363 7itanium Weld-1666 11-04-74 Use of SB-12, Alloy 122 for ing Fitti ion III, Class 07-01-75 Class 2 and 3 Construction 1682-1 08-11-75 Alternate Rules for Material 1612 12-17-73 Use of Type 308 Stainless Steel 07-01-78 Rod and Bar for Section III, 12-31-75 Manufacturers and Suppliers, (N 56)

Class 1,2,3, and CS Construc- * " ' " '"' #

tion A-3MO 1613 16846 03-03-75 A637 Grade 718 for Bolting 12-17 73 Use of SA-372 Cass IV Forg-01-01-78 ings,Section III Construction 01-01-76 Class 1 and 2 Construction 1615 12-17-73 Use of A587-73,Section III, 16906 04-28-75 Stock Materials for Section III 01-01 78 Class 3 Construction 01-01-77 Construction,Section III, Divi-sion 1 16166 12-17 73 Ultrasonic Examination of 07-01-75 Seamless Austenitic Steel Pipe, 1691 04-28-75 Ultrasonic Examination in Lieu Section III, Class 1 Construc- 01-01-78 of Radiography of Repair tion Welds for Vessels,Section III, Class 1 16226 03-02 74 PWIIT of Repair Welds in Car-p)

V V

01-01-76 bon Steel Castings,Section III, Cass 1,2, and 3 1698 (N-92) 06-30-757 Waiver of Ultrasonic Transfer 11-20-78 Method,Section III, V, and 07-13-81 VIII, Division 1 1625 03-02-74 Repair of Section III Class 2 12-31-74 and 3 Tanks 1626-1 01-08-79 Normalized and Tempered Code Case 1698 was acceptable subject to the fol.

(N-65-1) 01-21-82 1-1/4 Cr Low Alloy Steel Forg. lowing conditions in addition to those specified in the 01-21-85 ings,Section I and Section III Code Case: The material from which the basic calibra-tion block is fabricated should be of the same product 1634-2 08-13-76 Use of SB-359 for Section III, form, alloy, and heat treatment as the material being ex-(N-68) 07-01-78 Division 1, Class 3 Construc-amined. Alloys of equivalent P-number grouping may tion

( be used for the fabrication of calibration blocks if ad-16378 04-29-74 Effective Date for Compliance justments to signal height can be made to compensate l 01-01-75 with NA-3700 of Section III for sound beam attenuation difference between the cal-16456 08-12-74 Use of DeLong Diagram for ibration block and the material under examination by 01-01-76 Calculating the Delta Ferrite f 11 wingthetransfermethodprocedureofT-535.1(d),

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

Content of Welds in Section III, Class 1,2, and CS Construction 1713 08-11-75 Small Material Items, Section 1648 08-12-74 SA-537 Plates for Section III, 12-31-75 III, Division 1, Class 1,2,3, 07-01-76 Cass 1,2, ?, and MC Cornpo. CS and MC nents 1714-2 08-28-78 Postweld lieat Treatment of 16496 08-12-74 Modified SA 453-GR 660 for (N-102-2) 07-13-81 P-1 Material,Section III, O 01-01-76 Gass 1,2,3, and CS Construc- 06-30-84 Class M C tion 1722-1 01-08-79 Vacuum, Carbon Deoxidized (N-107-1) 01-08-82 SA-508 Forgings,Section III, 8

Code Case 1637 was accepted only on a case-by-case basis. Division 1 1.85 - 7

1724 11-03-75 Deviation from the Specified 1760 04-26-76 Maximum Dimensions for Iso-(N 108) 07-01-78 Silicon Ranges in ASME Ma- 01-01-78 lated Pores in Welds--Class 1 terial Specifications, Section Components,Section III, Divi-1 III, Division 1, and VIII, Divi- sion 1 sion 1 and 2 1766 04-26-76 Testing Requirements for 1728 11-03-75 Steel Structural Shapes and 07-01-77 Welding Materials, Class 1,2, 07-01-77 Small Material Products for 3, MC and CS Construction, Component Supports, Section Section III, Division 1 III, Division 1 Construction 1767 04-26-76 Examination of Tubular Prod-01-01-77 ucts Without Filler Metal-1 1740 12-22-75 Weld Metal Test,Section III, Class 1 Construction, Section 07-01-76 Class 1,2,3, MC and CS III, Division 1 1741-1 01-14-77 Interim Rules for the Required 1770 08-13-76 Testing of Electroslag Wire and 01-01-78 Number ofImpact Tests for (N-139) 01-01-79 Flux for Class 1,2,3, MC, and Rolled Shapes,Section III, Di- CS Construction,Section III, vision 1, Subsection NF, Com- Division 1 Ponent Supports 1772 08-13-76 Use of SA-453 Bolts in Service 1742 03-01-76 Use of SB 75 Annealed Copper (N-140) 08-30-79 Below 800 F Without Stress 07-01-76 Alloy 122,Section III, Divi- 07-16-82 Rupture Tests,Section III, sion 1, Class 2 Construction 12-31-85 Division 1 <

1773 08-13-76 Use of Other Product Forms of 1743 03-01-76 Use of SB-98 Cu-sib Rod 07-01-77 Materials for Valves, Section 07-01-76 CDA651 Section III, Division ,

HI, Division 1 1, Class 2 Components 1777 08-13-76 Use of SA-106, Grade C in 1746 03-01-76 Leak Testing of Seal Welds, 07-01-77 Class MC Construction, Sec-(N-123) 03-01-79 Section III, Division 1, Class 1, tion III, Division 1 2, and 3 Construction 1781 09-10-76 Use of Modified SA-487 Grade 1747 03-01-76 Requirements for Martensitic (N 147) 07-01-78 CA6NM, Seition III, Division (N-124) 01-08-79 Stainless Steel Forgings with 1, Class 1,2,3, MC or CS 07-13-81 13% Chromium and 4% Nick- 1782 09-10-76 Use of Copper-Nickel Alloy 07-13-84 el,Section III, Division 1 (N-148) 08-30-79 962 for Castings,Section III, 07-13-87 07-16-82 Division 1, Class 3 1748 03-01-76 Low Carbon Austenitic Stain- 06-30-83 Construction (N-125) 07-01-78 less Steel Pipe Welded With 1787 09-10-76 Depth of Weld Repairs for Filler Metal,Section III, Divi- 01-01-78 Forgings,Section III, Division sion 1, Construction 1, Class 1,2,3, MC and CS 1754 01-14-77 liard Surfacing by the Spray-(N-126) 01-07-80 Fuse Method,Section III, 1793 01-14-77 Structural Steel Rolled Shapes, 12-13-82 Class 1,2, and 3 Construction (N-156) 01-07-80 Section III, Division 1, Class 2, 02-20-86 02-14-83 3, and MC 12-07-87 02-14-86 07-01-88 1794 01-14-77 Use of Seamless Al-Br, Alloy (N-157) 01-07-80 CDA 614 Pipe,Section III, 1755-1 01-14-77 Alternative Rules for Examina.

Ob0%83 Division 1, Class 3 (N-127) 01-07-80 tion of Welds in Piping, Sec-02-14-83 tion III, Class 1 and 2 1795 01-14-77 Examination of Weld Repairs 02-20-86 Construction (N-158) 07-01-78 in Forgings,Section III, Divi-02 20-89 sion 1, Class 1,2,3, MC and {

02-20-92 CS i 1.85 - 8

1 l

1798 01-14-77 Use of ASTM A352-75, N-204 03-20-78 Use of Modified SA-508, Class 01 01-78 Grades LCA and LCC, Section 01-01-81 3, and SA-541, Class 3 for Sec-

,/] III, Division 1, Class 1,2, and tion III, Division 1, Class 1,2,

() 3 and 3 Constrection 1810 03-03-77 Testing Lots of Carbon Steel N-206 03-20-78 Use of ASTM B151-75 03-03-80 Solid, Bare Welding Electrode 03-16-81 Copper-Nickel Alloy 706 or Wire,Section III, Division 06-30-83 Rod and Bar for Section III, 1, Class 1,2,3, MC, and CS Division 1, Class 3 Construc-18199 03-23-77 Use of Type XM 19 for tion 01-01-78 Construction,Section III, Divi- N-207-1 03-19-79 Use of Modified SA-479 Type sion 1, Class 1,2,3 01-21-82 XM-19 for Section III, Divi-1819-114" 03 23-77 Use of Type XM 19 for 01-21-85 sion 1, Class 1,2,3, or CS (N-176-1) 03-23-80 Construction,Section III, Construction 08-25-80 Division 1, Class 1,2, and 3 N-223 11-30-78 Requirements for Stainless 08-25-83 11-20-81 Steel Precipitation Hardening, 1820 03-23-77 Alternative Ultrasonic Section III, Division 1, Class (N-177) 03-17-80 Examination Technique, MC 02-14-83 Section III, Division 1 N-224-1 05-11-81 Use of ASTM A500 Grade B 01-01 84 04-05-84 and ASTM A501 Structural N-178 05-25-77 Use of ASTM B271, CDA 04-05-87 Tubing for Welded Attach-01-01-80 954, Alloy 9C for Class 3 04-05-90 ments for Section III, Construction,Section III, Divi- Class 2,3, and MC sion 1 N-225 11-20-78 Certification and Identification 07-11-77 Examination of Springs for 01-01-81 of Material for Component (D)

N-180 07-01-78 Class 1 Component Standard Supports,Section III, Division 1

Supports,Section III, Division 1 N-227 07-09-79 Examination of Repair Welds, N 181 07-11-77 Steel Castings Refined by the 07-09-82 Section III, Class 2 and 3 07-11-80 Argon Decarburization Pro. Tanks cess,Section III, Division 1, N-242-1 04 10-80 Materials Certification, Section Constmetion 05-06-83 III, Division 1, Classes 1,2,3, N 183 07-11-77 Use of Modified SA-182 Grade 06-30-84 MC, and CS Construction 01-01-80 F22 for Section III, Division 1, Code Case N-242-1 was acceptable subject to the Class 1,2 and 3 Construction following condition in addition to those conditions spe.

N-190 08-29-77 Use of SA-455 for Class 3 cified in the Code Case: Applicants should identify in 07-01-78 Components,Section III, Divi. their Safety Analysis Reports the components and sup-sion 1 Ports for which the Code Case is being applied and should specify the respective paragraphs of the Code Case.

N-245 07-09-79 Use of ASTM B61-76 and 07-16-82 B62-76 Copper Alloy Castings 07-17-85 for Section III, Division 1,

This Code Case was reaffirmed as Case 1819-1.sce Regulatory Position 2, Case 1819-1, for the effective dates. Class 3 Construction I Case 1819 (N-176)was annulled December 31,1977. Ilowever,it was N-246 07-09-79 Use of SB 169, Alloy CA 614,

[','*,' c' h,$"" ' * "" P' "id'"8 '"' ' P '' "8 '

' ""P

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

r, a

HCodeCaseN-176 l:Re3-23-80isanannulmentdate.nisCasewas allowed to expire on 3-23-80 because of an administrative error. it was N-248 08-30-79 Alternative Reference Radio-(_,/ reinstated on 8-25-80 with no technical changes. It is, therefore, con- 07-01-80 graphs,Section III, Division 1, sidered to be in effect during that lapse in time.ne 8-25-83 is the man-datory annulment date. ne Case did not appear in Revisions 18-21 of Classes 1' 2' 3' MC' and CS this guide because of the AsME administrative error. Construction 1.85 - 9 l

- - - - - . _ _ _ _ _ _ - . - - - _ - - - _ - _ . - _ ~_

N-259 01-07-80 Ni-Cu-Al Bolting Material SB N-310-1 08-14-81 Certification of Bolting Materi-02-14-83 164 Modified,Section III, 07-01-82 als,Section III, Division 1, 01-01-84 Division 1, Class 3 Class 1,2,3, MC and CS N-265t2 01-07-80 Modified SA-487 Castings, Code Case N-310-1 was acceptable subject to the 09-01-83 Section III, Division 1, Class 1 following conditions in addition to those conditions 12-31-84 specified in the Code Case: Each applicant who applies 05-19-85 the Code Case should indicate in the refuncing Safety Analysis Report (1)in what way the bolting does no' N-267 01-07-80 Double-Wall Radiography'

... meet NCA-3800 (or NA-3700), (2) where the bolting 07-01-til Section III, Division 1, Class I will be used in the plant, and (3) how it will be shown end 2 that the bolting materi.i properties required b'y the N-274 03-17-8n Alternative Rules for Examina- Equipment Support Design Specification are present in 09-07-82 tion of Weld Repairs for the actual bolting material.

06-30-86 Sfation III, Division 1 N-317 07-13-81 ASTM A276 Bar Section III, Construction 07-01-82 Division 1 Code Case N-274 was acceptable subject to the fol- N-321-1 12-05-85 Use of Modified SA 249, lowing conditionl3 in addition to those conditions spe- 12-05-88 Grade TP 304,Section III, Di-cified in the Code Case. Paragraph 6 should be expand- vision 1, Class 1 ed as follows: The ultrasonic examination procedures N 337-1 07-18-85 Use of ASTM B525-70 Grade shall be proven by actual demonstration, to the satisfac-07-18-88 11, Type 11, Sintered Austentic tion of the Authorized Nuclear Inspector, that the pro-03-14-91 Stainless Steel for Class 2,3, edures are capable of detecting unacceptable cracks 03-14-94 and MC Component Standard according to Section XI requirements. '

Supports,Section III, Divi-N-277 03-17-80 Use of Type XM-19 Austenitic sion 1 09-17-80 Stainless Steel for Section III, N-342 04-02-82 Use of SA-249 and SA-312 Division 1, Class MC 04-02 85 Type 317 Stainless Steel, Sec-Construction tion III, Division 1, Classes 1, N-295 01 15-81 NCA-1140, Mcierials, Section 2, and 3 12-11-81 III, Division 1 N-348 09-09-82 Use of SA-574 Socket Head 06-30-82 09-07-8514 Cap Screws,Section III, Divi-N-296 11-17-80 Welding Material,Section III, sion 1 12-01-83 Division 1 Coiistruction Code Case N-348 was acceptable subject to the fol-N-298 11-17-80 Examination of Component lowing condition in addition to those conditions speci-12-01-83 Supports,Section III, Division fled n the Code Case: Applicants shouldjustify in their 1, Class 1,2,3, and MC Safety Analysis Reporis why use of these socket head cap screws will not result in early failure frem stress N-299-1 07-18-85 Use of Nickel-Chromium- corrosion cracking.

02-23-87 Molybdenum-Columbium -

A!!oy 625 Fergings, Section N-348-1 P 07-8514Use of SA-574 Socket Head III, Division 1, Clas: 2 and 02-20-86 Cap Screws,Section III, Divi.

Class 3 Components 02-20-89 sion 1 Code Case N 348-1 was acceptable subject to the 1 following c(mdition in addition to those conditions spe-

, Cnde 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 c1fied in the Code Case: Apph. cants should justify in

. : inges. The Case is, therefore. considered in errect during that pet, .d their Safety Analysis Reports why use of these socket e ame. Again. Code Case N-265 was allowed to expire on 12-31-84 .

(mandatory ennuh.. + date). It was reinstated as N-26S-1 on head cap screws will not result in early failure from 5-19-S5. Because of the circumstances and because there were no stress corrosion Cracking.

changes in the Code Case, the NRC considers that this Case was in ef-feet during the period of 12-31-84 through 5-19-85.

13 The reason for the condithnal acceptance of paragrsph 6 is to make cer.

34 tain that there ir a qualiried ultrasonic testing procedure capable of de. Code Case N-348 was annulled on 9-7-85. It was reinstated as tecting small flaws and differentating the small flaws from geometric N -348-l on 2-20-86. Because of the circumstances and because there re flectora This paragraph does not in any way alter the acceptance cri- were no changes in the Code Case, the NRC considers that the Code teria as specified in paragraph 3. Case was in effect durmg the period 9-7-85 through 2-20-36.

1.'5 -10

N-348 2 08-14-90 Use of SA-574 Socket Head N-459 05-04-88 SA-508 Basic Oxygen-Ladle )

08-14-93 Cap Screws,Section III, Divi-03-14-91 Furnace Process for Code O sion 1 03-14-94 Construction,Section III, Divi-Y Code Case N-348-2 was acceptable subject to the SI " I following condition in addition to those conditions spe- N-470 03-08-89 Class MC Material Require-cified in the Code Case: Applicants should justify in 03-08-92 ments [NE-2121(c)], Section

< their Safety Analysis Reports why use of these socket III, Division 1 head cap screws will not result in early failure from N-475 12-11-89 Materials in Inventory, Section stress corrosion cracking. 12-11-92 III, Division 1 N 352-1 07 18-85 Use of SA-638 Crade 660 N-482 03-05-90 Direct Quenched Stainless Bar, 06-30-86 Forgings and Bars Below 03-05-93 ASTM A 479-88b,Section III, 700*F Without Stress Rupture Division i Tests,Section III, Division 1 N-501 07-27-92 Alternative Rules to N-353 07-16-82 Marking of SA-354 Grade BD 12-31-93 NCA-3800,1990 Addenda 05-19-85 Bolting,Section III, Division 1 Section III, Division 1 09-05-88 3. REVISED CODE CASES N-367 02-14-83 SA-372 Type V, Grade 1, Class Code Cases that were endorsed by the NRC la a 02-19-86 B,Section III, Division 1 Prior version of this guide and were superseded by re-02-19-89 vised Code Cases on or after July 1,1974, should be considered as not endorsed as of the date of the ASME N-371-1 07-18-85 12CR-1W-1Mo-1/4V Marten-action that approved the revised version of the Code 07-18-88 sitic Stainless Steel Valve In-Cases. These Code Cases that are no longer endorsed ternals,Section III, Division 1 are listed in the following by number, effective dates,16 N-372 02-14-83 SB-163 Ni-Fe-Cr-Mo-Cu Alloy and title.17 p 12-31-83 825 (UNS N08825) Tubing, 1332-6 03 09-72 Requirements for Steel Forg-

! Section III, Division 1 01-08-79 ings,Section III and VIII, Divi-N-378 10-28-83 Examination of Piping Support sion 2

] 10-28-8615 Material,Section III, Division 1335-9 04-29-74 Requirements for Bolting 1, Class 1 08-28-78 Materials N 379-1 07-18-85 Bimetallic Tubing Section III, 1337-9 04-29-74 Special Type 403 Modified 07-18-88 Division 1, Class 1 04-28-75 Forgings or Bars,Section III 03 14-91 1337-10 04-28-75 Special Type 403 Modified 07-18-91 05 15-78 Forgings or Bars,Section III N-388 07-25-83 Component Support Bolting, 1344 i 04-29-74 Nickel-Chromium, Age-Har-07-30-86 Section III, Division 1, Classes (N-5) 01-08-79 denable Alloys (Alloy X750),

02-23-87 2,3, and MC 01-21-82 Section III N-398 32-20 84 Reporting of Charpy-V Notch 02-20-87 Test Results,Section III, Divi- 1358-5 11-03-75 High Yield Strength Steel, Sec-sion 1 (N-7) 01-08-79 tion III, Division 1, Class 1 01-21-82 Vessels ,

Code Case N-398 was acceptable subject to the fol-12-13-82 lowing condition in addition to those conditions speci-fied in the Code Case: The Code Case is not acceptable Code Case 1358-5 was acceptable subject to the to s: cam generator or reactor coolant pump supports. f 11 Win 8 condition m addition to those conditions spe-Applicants wishing to use this Code Case should indi- cified in the Code Case: The information required to be cate in the Safety Analysis Report the component sup- devek) ped by Note 1 in the Code Case should be pro-ports to which the case is applied for review on a case- vided m each referenong Safety Analysis Report.

/'] by-case basis. M Earherdate-- late Code Case was appreved by ASME;later date--date

/ revision of Code Case was approved by ASME.

17 Code Cases 1334-2,1337-7,1344-3,1484,1521, and 1542, which 1*Ihe annulment date of 12-31 -84 that was hsted m Revisions 24 and 25 were listedin the originalissue of this guide,were revise:iby the AsME was in error. The annulment date should be 10-28-86. prior to July 1,1974.

1.85 - 11

~

n

1395-3 11-06-72 SA-508, Class 2 Forgings with mum Yield Strength of 40.0 J 01-08-79 Modified Manganese Content, Ksi, and Cold Worked Alloy Section III or Section VIII, Di- 800 at a Yield Strength of 47.0 vision 2 Ksi,Section III, Division 1, Class 1 1407-2 06-26-72 Time of Examination for Class 07-01-74 1,2, and 3,Section III Vessels 1492t8 10-29-71 Post Weld lieat Treatment, 03G Se on I, III and VIII, Division 1414-3 11-03-75 liigh Yield Strength Cr-Mo .,

~

03-01 76 Steel for Section III, Division 1, Class 1 Vessels 15572 12-17-73 Steel Products Refined by Sec-Code Case 1414-3 was acceptable subject to the

1. I #*# E following condition in addition to those conditions spe- 1618 03-02 74 Material for Core Support cified in the Code Case: The information required to be 03-03-75 StructuresSection III, Subsec-developed by Note 1 in the Code Case should be pro- tion NG vided in each referencing Safety Analysis Report. Code Case 1618 was acceptable subject to the fol-1414-4 03-01-76 Ifigh Yield Strength CoMo lowing conditions in addition to those specified in the 08-09-77 Steel for Section III, Division Code Case: a. Welding of age-hardenable alloy SA-453 1, Class 1 Vessels Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-treated condition.

Code Case 1414-4 was acceptable subject to the b. Use of alloy ASTM A 564 Grade 631 is not accept-following condition in addition to those conditions spe- able on a generic basis.

cified in the Code Case: The information required to be developed by Note 1 'n the Code Case should be pro- 1610 1 03-03-75 Material for Core Support vided in each referencing Safety Acalysis Report.

03-01-76 Structures,Section III, Subsec-tion NG 1484-1 04 29-74 SB-163 Nickel-Chromium-Iron 11-04-74 Tubing (Alloy 600) at a Speci- Code Case 1618-1 was acceptable subject to the fied Minimum Yield Strength f 11 wmg condition m addition to those specified in the of 40.0 Ksi,Section III, Class 1 Code Case: Welding of age hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed 1484-2 11-04-74 SB-163 Nickel-Chromium-Iron when the material is in the solution-treated condition.

08-13-76 Tubing (Alloy 600 and 690) at 1618-2 03-01-76 Material for Core Support a Specified Minimum Yield (N-60) 01-08-79 StructuresSection III, Division Strength of 40.0 Ksi, Section 01-21-82 1, Subsection NG III, Class 1 05-25-83 1484-3 08-13-76 SB-163 Nickel-Chromium-Iron Code Case 1618-2 was acceptable subject to the (N-20) 08-30-79 Tubing (Alloy 600 and 690) following condition in addition to those conditions spe-07-16-82 and Nidel-Iron-Chromium cified in the Code Case: Welding of age-hardenable 05-19-85 Alloy 800 at a Specified Mini- alloy SA-453 Grade 660 and SA-637 Grade 688 should 09-05-85 mum Yield Streng;h of 40.0 be performed when the material is in the solution-Ksi,Section III, Division 1, treated condition.

Class 1 N-50-1 05 25-83 Material for Core Support N-20-1 09-05-85 SB-163 Nickel-Chromium-Iron 09-17-84 Structures,Section III, Divi- q 12-07-87 Tubing (Alloy 600 and 690) sion 1 and Nickel Iron-Chromium Alloy 800 at a Specified Mini- Code Case N-60-1 was acceptable subject to the mum Yield Strength of 40.0 f 11 wing condition in addition to those conditions spe-Ksi,Section III, Division 1, cified in the Code Case: Welding of age-hardenable Class 1 alloy S A-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution-N-20-2 12 67-87 SB-163 Nickel-Chromium Iron treated condition.

11-51-88 Tubing (Alloy 600 and 690) and Nickel-Iron-Chromium nCge r se a N noingerlisted by ASME as a section IH Code Case I Alloy 800 at a Specified Mini- and is therefva deleted from the acceptable listmg 1.85 - 12

N-60-2 ,09-17-84 Material for Core Support Code Case 1644 was acceptable subj:ct to the fol-09-05 85 Structures,Section III, Divi- . lowing condition in addition to those conditions speci-A- - sion 1 fled in the Code Case: The maximum measured ulti-mate tensile strength of the component support Code Case N-60-2 was acceptable subject to the material should not exceed 170 Ksi.

following condition in addition to those conditions spe-cified in the Code Case: Welding of age-hardenable 1644-1 04-28-75 Additional Materials for Com-alloy SA-453 Grade 660 and SA-637 Grade 688 should 06-30-75 ponent Support--Section III, be performed when the material is in the solution- Subsection NF, Class 1,2,3, treated condition. For SA-479 material, the maximum _ and MC Construction yield strength should not exceed 90,000 psi in view of Code Case 1644-1 was acceptable subject to the the susceptibility of this material to environmental following condition in addition to those conditions spe-cracking. cified in the Code Case: The maximum measured ulti-mate tensile strength of the mmponent support materi-N-60-3 09-05-85 Material for Core SupP rt

.. al should not exceed 170 Ksi.

07-27 88. . Structures,Section III, Divi-05-13-91 ' sion 1 1644-2 06-30-75 Additional Materials for Com-( 11-03-75 ponent Supports-Section III,

. Code Case N-60-3 was acceptable subject to the Subsection NF, Class 1,2,3 following condition in addition to those conditions spe- and MC Construction cified in the Code Case: Welding of age-hard:nable alloy SA-453 Grade 660 and SA-637 Grade 688 should Code Case 1644 2 was acceptable subject to the be performed when the material is in the solution- f 11 wingc nditionmadditiontothoseconditionsspe-treated condition. For SA-479 material, the maximum cified in the Code Case: The maximum measured ulti-mate tensile strength of the cor ponent support maten-yield strength should not exceed 90,000 psi in view of al should not exceed 170 Kst.

the susceptibility of this material to environmental cracking. 1644-3 11-03-75 Additional Materials for Com-O 05-13-91 ' Material for Core Support 03-01-76 ponent Supports-Section III, Q . N-60-4 02-15 94 Structures, Section 111, Divi-Subsection NF, Class 1,2,3 t

and MC Construction sion 1 Code Case 1644-3 was acceptable subject to the Code Case N-60-4 was acceptable subject to the following condition in addition to those conditions spe-following condition in addition to those conditions spe- cified in the Code Case: The maximum measured ulti-cified in the Code Case: Welding of age-hardenable mate tensile strength of the component support materi-alloy SA-453 Grade 660 and SA-637 Grade 688 should al should not exceed 170 Ksi.

be performed when the material is in the solution-1644 4 01-76 Additional Materials for Com-treated condition. The maximum yield strength of 08-13-76 ponent Supports and Alternate strain-hardened austeniticstainless steel should not ex-Design Requirements for ceed 90,000 psi in view of the susceptibility of this ma-Bolted Joints,Section III, Divi-terial to environmental cracking, sion 1, Subsection NF, Class 1, 1626. 03-02-74 Normalized and Tempered . 2,3 and MC Construction f 01-08-79 ' 1-1/4 Cr Iow Alloy Steel Forg- Code Case 1644-4 was acceptable subject to the

'ings, Section 1,Section III, and following conditions in addition to those specified in . '

Section VIII, Division 1 and 2 the Code Case: The maximum measured ultimate ten-1634 sH s ren8tW) oh component support material

.07-01-74 ~ Use of SB-359 for Section III' should not exceed 170 Ks, in view of the susceptibility 08-12-74 Class 3 Construction of high-strength materials to brittleness and stress cor-1634 1- 08-12-74 Use of SB-359 for Section III, rosion cracking. Certain applications may exist where a 08-13-76 Class 3 Construction . UTS value of up to 190 Ksi could be considered accept- .

,, able for a material and, under this condition, the Design 1644,

'( 08-12-74 Additional Materials for Com- Specification should specify impact testing for the ma-( 04-28-75 . ponent SupportsSection III, Subsection NF, Class 1,2,3, terial. For these cases, it should be demonstrated by he applicant that (1) the impact test results for the material

! '~ and MC Construction - meet code requirements and (2) the material is not sub-y 1.85 1 4

.,._e ._

ject to stress corrosion cracking by virtue of the fact that residual stresses or assembly stresses, and it does not (a) a corrosive environment is not present and (b) the experience frequent sustained loads in service.

component that contains the material has essentially no residual stresses or assembly stresses, and it does not 1644-7 11-21-77 Additional Materials for Com-experience frequent sustained loads in service. (N 717) 05-15-78 ponent Supports,Section III, Division 1, Subsection NF, 1644-5 08-13-76 Additional Materials for Com-03-03-77 ponent Supports and Alternate Class 1,2,3 and MC Compo-Design Requirements for nent Supports Bolted Joints,Section III, Divi-sion 1, Subsection NF, Class 1, Code Case 1644-7 was acceptable subject to the 2,3 and MC Construction following conditions in addition to those specified in the Code Case: The maximum measured ultimate ten-Code Case 1644-5 was acceptable subject to the site strength (UTS) of the component supp(,r' material following conditions in addition to those specified in should not exceed 170 Ksi in view of the susceptibility the Code Case: The maximum measured ultimate ten- of high-strength materials to brittleness and stress cor-sile strength (UTS) of the component support material rosion cracking. Certain applications may exist where a should not exceed 170 Ksi in view of the susceptibility UTS value of up to 190 Ksi could be considered accept-of high-strength materials to brittleness and stress cor- able for a material and, under this condition, the Design rosion cracking. Certain applications may exist where a Specification should specify impact testing for the ma-UTS value of up to 190 Ksi could be considered accept- terial. For these cases, it should be demonstrated by the able for a material and, under this condition, the Design applicant that (1) the impact test results for the material Specification should specify impact testing for the ma-meet code requirements and (2) the material is not sub-terial. For these cases, it should be demonstrated by the ject to stress corrosion cracking by virtue of the fact that applicant that (1) the impact test results for the material (a) a corrosive environment is not present and (b) the reet code requirements and (2) the maternal is not sub-component that contains the material has essentially no ject to stress corrosion crackingby virtue of the fact that residual stresses or assembly stresses, and it does not (a) a corrosive environment is not present and (b) the experience frequent sustained loads in service.

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 Ill, 1644-6 03-03-77 Additional Materials for Com- Division 1, Subsection NF, 11-21-77 ponent Supports and Alternate Class 1,2,3 and MC Compon-Design Requirements for ent Supports Bolted Joints,Section III, Divi-sion 1, Subsection NF, Class 1, Code Case 1644-8 was acceptable subject to the 2,3 and MC Construction following conditions in addition to those specified in Code Case 1644-6 was acceptable subject to the the Code Case: The maximum measured ultimate ten-following conditions in addition to those specified in sile strength (UTS) of the component support material the Code Case: The maxhtum measured ultimate ten- should not exceed 170 Ksiin view of the susceptibility site strength (UTS) of the component s pport material f high-strength materials to brittleness and stress cor-should not exceed 170 Ksi in view of the susceptibility r si n cracking. Certain applications may exist where a of high-strength n aterials to brittleness and stress cor. UTS value of up to 190 Ksi could be considered accept-rosion cracking. Certaio applicat*ons may exist where a able for a material and, under this condition, the Design UTS value of up to 190 Ksi could be considered accept. Specification should specify impact testing for the ma-able for a material and, under this ccmdition, the Design terial. For these cases,it should be demonstrated by the Specification should specify impact testing for the ma. applicant that (1) the impact test results for the material terial. For these cases, it should be demonstrated by the meet code requirements and (2) the mateial is not sub-applicant that (1) the impact test results for the material ject to stress corrosion cracking by virtue of the fact that .

meet code requirements and (2) the material is not sub- (a) a corrosive environment is not present and (b) the l ject to stress corrosion cracking by virtue of the fact that component that contains the material has essentially no

, (a) a corrosive environment is not present and (b) the residual stresses or assembly stresses, and it does not l component that contains the material has essentially no experience frequent sustained loada in service. j i

l L85-14

1644-9 01-07-80 Additional Materials for Com- specifird in the Code Case: The maximum measured (N 719) 0511-81 ponent Supports Fabricated by ultimate tensile strength (UTS) of the component sup-Welding,Section III, Division port material should not exceed 170 Ksi in view of the 1, Subsection NF, Class 1,2,3, susceptibility of high-strength materials to brittleness and MC Component Supports and stress corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be con-Code Case 1644-9 was acceptable subject to the sidered acceptable for a material and, under this condi-following condition in addition to those conditions spe-tion, the Design Specification should specify impact cified in the Code Case: In the last sentence of para-testing for the material. For these cases, it should be de-graph 5.3, reference should be made to paragraph monstrated by the applicant that (1) the impact test re-4.5.2.2," Alternate Atmosphere Exposure Eme Peri-sults for the material meet code requirements and (2) ods Established by Test," of the AWS D.1.1 Code for the material is not subject to stress corrosion cracking the evidence presented to and accepted by the Autho-by virtue of the fact that (a) a corrosive environment is rized Inspector concerning exposure of electrodes for not present and (b) the component that contains the ma-longer periods of time.

terial has essentially no residual stresses or assembly N-71-10 05-11-81 Additional Materials for Com. stresses, and it does not experience frequent sustained 06-17 82 ponert Supports Fabricated by loats in service. In the last sentence of paragraph 5.3,

f. Welding,Section III, Division reference should be made to paragraph 4.5.2.2," Alter-1, Subsection NF, Class 1,2,3, nate Atmosphere Exposure Eme Periods Established and MC Component Supports by Test,"of the AWS D.1.1 Code for the evidence pres-ented to and accepted by the Authorized Inspector con-Code Case N-71 10 was acceptable subject to the cerning exposure of electrodes for longer periods of following conditions in addition to those conditions time, specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup- N-7112 02-14-83 Additional Materials for Com-port material should not exceed 170 Ksi in view of the 02-20-84 ponent Supports Fabricated by susceptibility of high-strength materials to brittleness Welding,Section III, Division and stress corrosion cracking. Certain applications may 1, Class 1,2,3, and MC exist where a UTS value of up to 190 Ksi could be con-Code Case N-71-12 was acceptable subject to the sidered acceptable for a material and, under this condi-following condition in addition to those conditions spe-tion, the Design Specification should specify impact cified in the Code Case: The maximum measured ulti-testing for the material. For these cases, it should be de-mate tensile strength (UTS) of the component support monstrated by the applicant that (1) the impact test re-material should not exceed 170 Ksi in view of the sus-sults fc- the material meet code requirements and (2) ceptibility of high-strength materials to brittleness and the material is not subject to stress corrosion cracking stress corrosion cracking. Certain applications may ex-by virtue of the fact that (a) a corrosive environment is ist where a UTS value of up to 190 Ksi could be consid-not present and (b) the component that contains the ma-ered acceptable for a material and, under this condition, terial has essentially no residual stresses or assembly the Design Specification should specify impact testing stresses, and it does not experience frequent sustamed for the material. For these cases, it should be deman-loads in service. In the last sentence of paragraph 5.3, strated by the applicant that (1) the impact test results reference should be made to paragraph 4.5.2.2," Alter-for the material meet code requirements and (2) the ma-nate Atmosphere Exposure Mme Periods Established terial is not subject to stress corrosion cracking by vir-by Test," of the AWS D.1.1 Code for the evidence pres-tue of the fact that (a) a corrosive environment is not ented to and accepted by the Authorized Inspector con- present and (b) the component that contains the materi-cerning exposure of electrodes for longer periods of al has essentially no residual stresses or assembly time.

stresses, and it does not experience frequent sustained N 71-11 06-17-82 Additional Materials for Com- I ads in service. In the last sentence of paragraph 5.3, 02-14-83 ponent Supports Fabricated by reference should be made to paragraph 4.5.2.2," Alter-Welding,Section III, Division nate Atmosphere Exposure Eme Periods Established by Test,"of the AWS D.1.1 Code for the evidence pres-p) 1, Subsection NF, Class 1,2,3, ented to and acc pted by the Authorized Inspector con-(V and MC Component Supparts cerning exposure of electrodes for longer periods of Code. Case N-71 11 was acceptable subject to the time. The provisi<ms of paragraph 4.3 are not accept-l, following conditions in addition to those conditions able on a generic basis. Paragraph 16.2.2 is not accept-1.85 - 15

% w

i able as written and should be replaced with the follow- ply only to piping supports and not to Class 1,2, and 3 ing: When not exempted by 16.2.1, above, the postweld component supports. The fracture toughness of Classes heat treatment shall be performed in accordance with 1,2, and 3 component supports shall be characterized in NF-4622 except that for ASTM A-710 Grade A materi- accordance with paragraph 5.3.4 of the USNRC Stan-al it shall be at least 1000 F (540 C) and shall not dard Review Plan (NUREG-0800) or on a case-by-case exceed 1150 F (620 C) for Class 1 and Class 2 mate- basis.

rial and 1175* F (640 C) for Class 3 material. The new holding time at temperature for weld thickness (nomi- N-71-14 12-05-85 Additional Materials for Sub-nal) shall be 30 minutes for 1/2 inch or less,1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months per 12-16-86 section NF, Classes 1,2,3 and inch for thickness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months MC Component Supports Fab-plus 15 minutes for each additional inch over 5 inches. ricated by Welding,Section III, N-71-13 02-20 84 Addironal Materials for Sub-12-05-85 section NF, Classes 1,2,3 and Code Case N-71-14 was acceptable subject to the MC Component Supports Fab-f 11 wing condition in addition to those conditions spe-ricated by Welding, Section 111, cified in the Code Case: The maximum measured ulti-Division 1 I mate tensile strength (UTS) of the component support Code Case N-71-13 was acceptable subject to the material should not exceed 170 Ksiin view of the sus-following condition in addition to those conditions spe- ceptibility of high-strength materials to brittleness and cified in the Code Case: The maximum measured ulti- stress corrosion cracking. Certain applications may ex-mate tensile strength (UTS) of the component support ist where a UTS value of up to 190 Ksi could be consid-material should not exceed 170 Ksiin view of the sus- ered acceptable for a material and, under this condition, ceptibility of high-strength materials to brittleness and the Design Specification should specify impact testing stress corrosion cracking. Certain applications may ex- for the material. For these cases, it should be demon-ist where a O TS value of up to 190 Ksi could be consid- strated by the applicant that (1) the impact test results ered acceptable for a material and, under this condition, for the material meet code requirernents and (2) the ma-the Design Specification should specify impact testing terial is not subject to stress corrosion cracking by vir-for the material. For these cases, it should be demon- tue of the fact that(a) a corrosive environment is not strated by the applicant that (1) the impact test results present and (b) the component that contains the mateei-for the material meet code requirements and (2) the ma- al has essentially no residual stresses or assembly terial is not subject to stress corrosion cracking by vir- stresses, and it does not experience frequent sustained tue of tre fact that (a) a corrosive environment is not loads in service. In the last sentence ci paragraph 5.3, present and (b) the component that contains the mate- reference should be made to paragraph 4.5.2.2," Alter-rial has essentially no residual stresses or assembly nate Atmosphere Exposure Time Periods Established stresses, and it does not experience frequent sustained by Test,"of the AWS D.1.1 Code for the evidence pres-loads in service. In the last sentence of paragraph 5.3, ented to and accepted by the Authorized Inspector con-reference should be made to paragraph 4.5.2.2, " Alter- cerning exposure of electrodes for longer periods of nate Atmosphere Exposure Time Periods Established time. Paragraph 16.2.2 is not acceptable as written and by Test,"of the AWS D.1.1 Code for the evidence pres- should be replaced with the following: When not ex-ented to and accepted by the Authorized Inspecwr con- empted by 16.2.1, above, the postweld heat treatment cerning exposure of electrodes for longer periods of shall be performed in accordance with NF-4622 except time. Paragraph 16.2.2 is not acceptable as written and that for ASTM A-710 Grade A material,it shall be at should be replaced with the following: When not ex- least 1000 F (540 C) and shall not exceed 1150*F empted by 16.2.1 above, the postweld heat treatment (620 C) for Class 1 and Class 2 material and 1175*F shall be performed in accordance with NF-4622 er. cept (640*C) for Class 3 material. The new L . ding time at that for ASTM A-710 Grade A material,it shall be at temperature for weld thickness (nominal) shall be 30 least 1000 F (540 C) and shall not exceed 1150 F minutes for 1/2 inch or less, I hour per inch for thick-(620*C) for Class 1 and Class 2 material and 1175 F ness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months plus 15 min-(640*C) for Class 3 material. The new holding time at utes for each additional inch over 5 inches. The fracture temperature for weld thickness (nominal) shall be 30 toughness requirements as listed in this Code Case ap- l minutes for 1/2 inch or less, I hour per inch for thick- ply only to piping supports and not to Class 1,2, and 3 '

ness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months plus 15 min- component supports. The fracture toughness of Classes utes for each additional inch over 5 inches. The fracture 1,2, and 3 component supports shall be characterized in i tought ess requirements as listed in this Code Case ap- accordance with paragraph 5.3.4 of the USNRC Stan- l 1.85 - 16

y.......

l ; dard Review Plan (NUREG-0800) or on a case-by-case 1682 01-29-75 Alternate Rules for Material

} basis. 08-11-75 Manufacturers and Suppliers,

- G . Section III, Subarticle N-71-15 12-16-86 Additional Materials for Sub. NA-3700 12-16-89 'section NF, Casses 1,2 3 and 1714 08-11-75. Postweld Heat Treatment of 02-12-93 MC Compenent Supports Fab- 07-11-777 P-1 Material,Section III, Class ricated by Welding,Section III, Division 1 MC 1714-1 07-11-777 Postweld Heat Treatment of Code Case N-71-15 was acceptable subject to the (N-102-1) 08-28-78 P-1 Material, Section Ill, Class following conditions in addition to those conditions MC

- specified in the Code Case: The maximum measured ultimate tensile strength (UTS) of the component sup. 1722 11-03-75 Vacuum, Carbon Deoxidized port material should not exceed 170 Ksi in view of the 01-08-79 SA-508 Forgings,Section III,-

Division 1, and VIII, Division

~

- susceptibility of high-strength materials to brittleness and stress corrosion cracking. Certain applications may 1 and 2

! exist where a UTS value of up to 190 Ksi could be con-1741 12-22-75 Interim Rules for the Required

. sidered acceptable for a material and, under this condi- 01-14-77 Number ofImpact Tests for tion, the Design Specification should specify impact Rolled Shapes,Section III, Di-testing for the material. For these cases, it should be de- vision 1, Subsection NF, Com- ,

monstrated by the applicant that (1) the impact test re- ponent Supports sults for the material meet code requirements and (2) 1755 04-26-76 Alternative Rules for Examina-the material is not subject to s' tress corrosion cracking 01-14-77 tica of Welds in Piping, Class

' by virtue of the fact that (a) a corrosive environment is 1 and 2 Construction, Section not present and (b) the component that contains the ma- III, Division 1

'f ' terial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained 1759 08-13-76 Material for Internal Pressure loads in service. In the last sentence of paragraph 5.3, 05-15-78 Retaining Items for Pressure reference should be made to paragraph 4.5.2.2," Alter- Relief Valves,Section III,' Di-nate Atmosphere Exposure Time Periods Established visi n 1, Cass 1,2, and 3 by Test," of the AWS D.1.1 Code for evidence pres. Code Case 1759 was acceptable subject to the fol- -

ented to and accepted by the Authorized Inspector con- lowing condition in addition to those conditions speci-

- cerning exposure of electrodes for longer periods of fied in the Code Case: Applicants using this Case

' time. Paragraph 16.2.2 is not acceptable as written and should also use Code Case 1711 for the design of pres-should be replaced with the following: When not ex. sure relief valves.

. empted by 16.2.1, above, the postweld heat treatment N-188 08-29-77 Use of Welded Ni-Fe-Cr-Mo-Cu shall be performed in accordance with NF-4622 except 05-15 (Alloy 825) and Ni Cr-Mo-Cb that for ASTM A-710 Grade A material, it shall be at

. (Alloy 625) Tubing, Section

'least 1000*F (540'C) and 'shall not exceed 1150*F III, Division 1, Cass 3 (620*C) for Cass 1 and Cass 2 material and 1175'F N-207 03-20-78 Use of Modified SA-479 Type

. (640*C) for Cass 3 material. The new holding time at 03-19-79 XM-19 for Section 111, Divi-temperature for weld thickness (nominal) shall be 30 sinn 1, Class 1,2, or 3 minutes for 1/2 inch or less, I hour per inch for thick-Construction ness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months plus 15 min-utes for each additional inch over 5 inches. The fracture N 224 11-20-78 Use of ASTM A500 Grade B

- toughness requirements as listed in this Code Case ap. 05-11-81 and ASTM A501 Structural ply only to piping supports and not to Class 1,2, and 3 Tubing for Welded Attach-

. component supports. The fracture toughness of Casses ments for Section III, Class 2

.O 1,2, and 3 component supports shall be characterized in and 3 C(mstruction accordance with paragraph 5.3.4 of the USNRC Stan- N-242 04-12-79 . Materials Certification, Section dard Review Plan (NUREG-0800) or on a case-by-case 04-10-80 III, Division 1, Casses 1,2,3, basis.' MC, and CS Construction 1.85 - 17

r

,W Code Case N 242 was acceptable subjcct to the fol- ture toughness of Classes 1,2, and 3 component sup-lowing condition in addition to those conditions speci- ports should be characterized in accordance with paia-fied in the Code Case: Applicants should identify the graph 5.3.4 of the USNRC Standard Review Plan components and supports requiring the use of para- (NUREG-0800) or on a case-by-case basis, graphs 1.0 through 4.0 of the Code Case in their Safet/ N-249-5 09-17-84 Additional Material for Sub-Analysis Reports. 04-08-85 section NF, Classes 1,2,3, and N-246-1 09-07-82 SB 169, Alloy C 61400, See- MC Component Supports Fab-05-25-83 tion Ill, Division 1, Class 3 ricated Without Welding, See-tion III, Division 1 N 249 01-07-80 Additional Materials for Com-05-11-81 ponent Supports Fabricated The fracture toughness requirements as listed in f Code Case N-249-5 apply only to piping supports and l Without Welding,Section III, Division 1, Subsection NF, not to Classes 1,2, and 3 component supports. The frac-Class 1,2,3, and MC Compo. ture toughness of Classes 1,2, and 3 component sup-nent Supports Ports should be characterized in accordance with para-graph 5.3.4 of the USNRC Standard Review Plan Code Case N-249 was acceptable subject to the fol- (NUREG-0800) or on a case-by-case basis.

lowing condition in addition to those conditions speci-fied in the Code Case: Footnote 2 of the Code Case N-249-6 04-08-85 Additional Material for Sub-should apply to all materials listed in Tables 1,2,3,4, 09-05-85 section NF, Classes 1,2,3, and and 5 of the Code Case and should be so indicated on MC Component Supports Fab-line 5 of the " Reply" ricated Without Welding, Sec-tion 11I, Division 1 N-249-1 05-11-81 Additional Materials for Com-06-17-82 ponent Supports Fabricated Code Case N-249-6 was acceptable subject to the Without Welding, Secticn 111, f 11 win 8 conditions in addition to those conditions Division 1, Subsectim NF, specified in the Code Case: The fracture toughness re- l Class 1,2,3, and MC Compo- quirements apply only to piping supports and not to Classes 1,2, and 3 component supports. The fracture nent Supports toughness of Classes 1,2, and 3 component supports Code Case N 249-1 was acceptable subject to the should be characterized in accordance with paragraph following condition in addition to those conditions spe- 5.3.4 of the USNRC Standard Review Plan (NUREG-cified in the Code Case: Paragraph 7 of the " Reply" 0800) or on a case-by-case basis. The following is to be should reference the requirements of NF-2600 instead added to paragraph (5) of the Case: For these cases,it of NF-2800. This is a typographical error in that should be demonstrated by the owner that (1) the im-NF-2800 does not exist. pact test results for the material meet Code require-N-249-2 06-17-82 Additional Materials for Sub. ments and (2) the material is not subject to stress corro-02-14-83 section NF Class 1,2,3, and si n cracking by virtue of the fact that (a) a corrosive MC Component Supports Fab- environment is not present and (b) the component that ricated Without Welding, Sec- contains the material has essentially no residual tion III, Division 1 stresses or assembly stresses, and it does not experience frequx.t sustained loads in service, i N-249-3 02-14-83 Additional Materials for Sub- .

02-20-84 section NF Class 1,2,3, and N-249-7 09-05-85 Additional Material for Sub-12-05-85 section NF, Classes 1,2,3, and MC Component Supports Fab-MC Component Supports Fab-ricated Without Welding, Sec-tion III, Division 1 ricated Without Welding, Sec- )

tion III, Division 1 N-249-4 02-20-84 Additional Material for Sub-

, Code Case N-249-7 was acceptable subject to the 09-17-84 section NF, Classes 1,2,3, and following conditions in addition to tiuse conditions MC Component Supports Fab-specified in the Code Case: The fracture toughness re-neated Without Welding, Sec-quirements apply only to piping supports and not to tion Ill, Division 1 Classes 1,2, and 3 component supports. The fracture The fracture toughness requirements as listed in toughness of Classes 1,2, and 3 component supports Code Case N-249-4 apply only to piping supports and should be characterized in accordance with paragraph not to Classes 1,2,i ed 3 component supports. The Dac- 5.3.4 of the USNRC Standard Review Plan (NUREG- !

I 1.85 - 18

0800) or on a case +y-case basis. The following is to be ' sion cracking by virtue of the fact that (a) a corrosive added to paragraph (5) of the Case: For these cases, it environment is not present and (b) the component that

'should be demonstrated by the owner that (1) the im . contains the material has essentially no residual

( pact test results for the material meet Code require- stresses or assembly stresses, and it does not experience ments and (2) tbc material is not subject to stress corro- frequent sustained loads in service.

e!on cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that N-249-10 05-06-89 Additional Material for Sub-contains the ' material has essentially, no residual 05-13-91 section NF, Classes 1,2,3, and stresses or assembly stresses, and it does not experience MC Component Supports Fab-frequent sustained loads in service.

ricated Without Welding, Sec-tion Ill, Division 1 N-249-8 12-05 Additional Material for Sub-12-16-86 section NF, Classes 1,2,3, and Code Case N-249-10 was acceptable subject to the MC Component Supports Fab. following conditions in addition to those conditions ricated Without Welding, Sec. specified in the Code Case: The fracture toughness re-tion III, Division 1 quirements apply only to piping supports and not to Classes 1,2, and 3 component supports. The fracture Co& Case N 249-8 was' acceptable subject to the toughness of Classes 1,2, and 3 component supports following conditions in addition to those conditions should be characterized in accordance with paragraph specified in the Code Case: The fracture toughness re- 5.3.4 of the USNRC Standard Review Plan (NUREG-quirements apply only to piping supports and not to 0800) or on a case-by case basis. The following is to be Classes 1,2, and 3 component supports. The fracture added to paragraph (5) of the Case: For these cases, it

} toughness of Classes 1,2, and 3 component supports should be demonstrated by the owner that (1) the im-R should be characterized in accordance with paragraph pact test results for the material meet Code require-5.3.4 of the USNRC Standard Review Plan (NUREG- ments and (2) the material is not subject to stress corro-0800) or on a case-by-case basis. The following is to be sion cracking by virtue of the fact that (a) a cerrosive added to paragraph (5) of the Case: For these cases, it environment is not present and (b) the component mat

'should be demonstrated by the owner that (1) the im- contains the material has essentially ' no residuai

. pact test results for the material meet Code require- stresses or assembly stresses, and it does not experience ments and (2) the material is not subject to stress corro- frequent sustained loads in service.

sion cracking by virtue of the fact that (a) a corrosive environment is not present and (b) the component that N-249-11 05-13-91 Additional Material for Sub-contains the- material has essentially no residual 02-12-93 section NF, Classes 1,2,3 and

. stresses or assembly stresses, and it does not experience - MC Component Supports fab-frequent sestained loads in service. ricated Without Welding, Sec-N-249-9 12-16-86 Additional Material for Sub-05-06-89 section NF, Classes 1,2,3, and . Code Case N-249-11 was acceptable subject to the MC Component Supports Fab. . following conditions ~ in addition to those conditions ricated Without Welding, Sec. specified in the Code Case: The fracture toughness re-tion III, Division I L quirements apply only to piping supports and not to f:-

Classes 1,2, and 3 component supports, ne fracture ,

' Code Case N-249-9 was acceptable subject to the toughness of Classes 1,2, and 3 component suppoits following conditions in addition to those conditions should be characterized in accordance with paragraph specified in the Code Case: The fracture toughness re- 5.3.4 of the USNRC Standard Review Plan (NUREG-quirements apply only to piping supports and not to 0800) or on a case-by case basis. The following is to be Classes 1,2, and 3 component supports. The fracture added to paragraph (e) of the Case: For these cases, it

. toughness of Classes 1,- 2, and 3 component supports should be demonstrated by the owner that (1) the im-

- should be characterized in accordance with paragraph pact test results for the material meet Code require-3

- 5.3.4 of the USNRC Standard Review Plan (NUREG- ments and (2) the material is not subject to stress corro-0800) or on a case-by-case basis. The following ia to be sion cracking by virtue of the fact that (a) a corrosive

/ added to paragraph (5) of the Case: For these cases, it environment is not present and (b) the component that

~ should be demonstrated by the owner that (1) the im- contains' the ~ material has essentially no residual

. pact test results for the material meet Code require- stresses or assembly stresses, and it does not experience ments and (2) the material is not subject to stress corro- . frequent susta!ned loads in service.

1.85 -1 1

N-249-12 02-12-93 Additiond Material for Sub- N 352 07-16-82 Use of SA-638 Grade 660 05-11-94 section NF, Classes 1,2,3, and 05 19-85 Forgings and Bars Below MC Component Supports Fab- 07-18-85 700*F Without Stress Rupture ricated Without Welding, Sec- Tests,Section III, Division 1 tion III, Division 1 N-370 02-14-83 Modified SA-705 Grade Code Case N-249 12 was acceptable subject to the 07-18-85 XM 13 Forgings,Section III, Division 1 following conditions in addition to those conditions specified in the Code Case: the fracture toughness re-N 370-1 07-18-85 ' Modified SA-705 Grade quirements apply only to piping supports and not to 12-05-85 XM-13 Forgings,Section III, Classes 1,2, and 3 component supports. The fracture ,

Division 1 toughness of Classes 1,2, and 3 component supports should be characterized in accordance with paragraph N-371 02 14-83 12 Cr-1W-1Mo-1/4V Marten-l 5.3.4 of the USNRC Standard Review Plan (NUREG- ,

07-18-85 sitic Stainless Steel Valve in-I 0800) or on a case-by-case basis. The following is to be ,

' ternals, Section 111, Division 1 added to paragraph (e) of the Case: For these cases, is should be demonstrated by the owner that (1) the im-N-379 04-04-83 Bimetallic Tubing Section III, pact test results for the material meet Code require- 07-18-85 Division 1, Class 1 ments and (2) the material is not subject to stress corro-sion cracking by virtue of the fact that (a) a corrosive N-418 12-05-84 Use of Seamless Ni-Fe-Cr-Mo- ,

environment is not present and (b) the component that 07-30-86 Cu Low Carbon (UNS N08028 contains the material has essentially no residual and UNS N08904) Tubing, stresses or assembly stresses, and it does not experience Section III, Division 1, Classes frequent sustained loads in service.

2 and 3 N-26519 01-07-80 Modified SA-487 Castings, N-438 02-23 87 Fe-24.5Ni-21Cr-6.5 Mo-0.2N 09-01-83 Section III, Division 1, 03 08-89 (Alloy UNS N08367) Seamless 12-31-84 Class 1 and Welded Pipe, Tube, Plate, 05-19-85 Bar, Fittings, and Forgings, q Class 2 and 3 Construction, N-299 11-17-80 Use of Nickel-Chromium- Section III, Division 1 11-28-83 Molybdenum-Columbium 07-18-85 Alloy 625 Forgings, Section N-438-1 03-08-89 Fe-24.5Ni-21Cr-6.5Mo-0.2N III, Division 1, Class 2 and 03-05-90 (Alloy UNS N08367) Seamless Class 3 Components and Welded Pipe, Tube, Plate, Bar, Fittings, and Forgings, N 321 07-13-81 Use of Modified SA-249, Type Class 2 and 3 Construction, 07-13-84 304 for Section Ill, Division 1, Section 111, Division 1 12-05-85 Class 1 Construction N-438-2 03-05-90 UNS NO8367 Material, Sec-N-337 04-02-82 Use of ASTM B525-70 Grade 07 27-92 tion III, Division 1, Class 2 and j '

05 19-85 II, Type II, Sintered Austenitic 3 Construction 07-18-85 Stainless Steel for Class 2,3, N-441 02 23-87 Use of 20Cr-18Ni-6Mo (Alloy 4 and MC Component Standard '

12-11-89 UNS S31254) Fittings, Class 2 Supports,Section III' 11-25 92 and 3 Construction,Section III, Division 1 Division 1 N-443 05-07-87 High Yield Strength Cr-Mo 19 Code Case N-263 was allowed to expire on 83 because of an ad.

ministrative error. It was reinstated on 9-i-83 with no technical 03-08-89 Steel, Class 1 Component changes.The Case is.therefore, considered in effect during that period Section Ill, Division 1 of time. Again, Code Case N-265 was allowed to expire on 12-31-84 (mandatory annulment d.4 It was reinstated as N-265-I on N-466 03-08-89 Modified 9Cr-1Mo Material 519-85. Because of the circumstances and because there were no ...

04 30-90 Section III, Division 1, Classes changes in the Code Case,the NRC considers that this Case was in ef.

feet during the period of 12-31-84 through 5-i9-85. 1,2, and 3 j 1.85 - 20 f

l N-474 05-06-89 Design Stress Intensities and C.1) or other regulatory guides should be considered 03-05-90 Yield Strength Values for Alloy not acceptable on a generic basis.

( 690 With a Minimum Yield .

D. IMPLEMENTATION

' Strength of 35 ksi, Class 1

-( . Components, Section Ill, Divi-' The purpose of this section is to provide informa-sion 1 - tion to applicants regarding the use of this regulatory N-474-1 03-05-90 Design Stress Intensities and

, 03-05-93 Yield Strength Values for UNS 1. Except for those Code Cases that have been an-12-09-93 N06690 With a Minimum Spe- nulled by action of the ASME, the NRC staff has citied Yield Strength of 35 ksi, found the Code Cases listed in the final version of Class 1 Components, Section this regulatory guide under Regulatory Position 1 III, Division 1 acceptable for appropriate use. Other Code Cases may be considered for use in accordance with foot-N-492 12-03-90 Grade 9 Titanium Alloy, Sec- note 6 of the Codes and Standards rule,10 CFR 05-11-94 tion III, Division I, Class 1,2, 50.55a.

and 3

2. Components ordered to a specific version of a Code N-497- 05-13-91 Use of Fe-Ni-Cr-Mo-N Case need not be changed because a subsequent re-12-09-93 (CN-3MN) Cast Materials, vision of the Code Case is listed as the approved Section III, Division 1, Class 2 version in this guide, and 3 Construction

3. Components ordered to a Code Case that was pre-

4. UNACCEPTABLE CODE CASES vi usly approved for use need not be changed be-cause the Code Case has been subsequently an-Code Cases for Class 1 components that are not on nulled.

the approved list of this guide (paragraph C.1) or other

4. Code Cases on the approved list may be applied to "O regulatory Commission has guides, not been granted,or for are which authorization not acceptable components bythatthe were m the process of construc-for Class 1 components, tion prior to the effective date of the Code Case within the limits specified in the Code Case and ap-Code Cases for other classes of components that plicable regulations or recommended in other regu-are not on the approved list of this guide (paragraph latory guides.

h u

O-L 1.85 - 21

APPENDIX NUMERICAL LISTING OF CODE CASES N-4-11 (1337-11) N-294 N-443-1 O

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-4841 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-2651 l

O 1.85 - 22 o

i 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.

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1.85 - 23

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