ML20206Q864

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Rev 24 to Reg Guide 1.85, Matls Code Case Acceptability, ASME Section Iii,Div 1
ML20206Q864
Person / Time
Issue date: 06/30/1986
From:
NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
To:
References
REGGD-01.085, REGGD-1.085, NUDOCS 8607030414
Download: ML20206Q864 (14)
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  1. Revision 24 r[ \ %

U.C. NUCLEAR REGULATORY COMMISSION June 1988

, (g***** OFFICE OF NUCLEAR GU DEREGULA REGULATORY GUIDE 1.85 MATERIALS CODE CASE ACCEPTABILITY ASME SECTION lli DIVISION 1 A. INTRODUCTION Appendix B, " Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants," to 10 CFR Section 50.55a, " Codes and Standards," of 10 CFR Part Part 50 requires, in part, that measures be established 50, " Domestic Licensing of Production and Utilization for the control of special processing of materials and Facilities," requires, in part, that components of the that proper testing be performed.

reactor coolant pressure boundary be designed, fabricated, trected, and tested in accordance with the requirements This regulatory guide lists those Section ill ASME for Gass I components of Section Ill, " Nuclear Power Code Cases oriented to materials and testing that are Plant Components,"8 of the American Society of Mechani- generally acceptable to the NRC staff for implementation cal Engineers (ASME) Boiler and Pressure Vessel Code or in the licensing of light-water-cooled nuclear power plants.

equivalent quality standards. Footnote 6 to 550.55a states that the use of specific Code Cases may be authorized by Any information collection activities mentioned in this the Commission upon request pursuant to $50.55a(aX2Xii), regulatory guide are contained as requirements in 10 GR which requires that proposed alternatives to the described Part 50, which provides the regulatory basis for this guide.

requirements or portions thereof provide an acceptable The information collection requirementsin 10 GR Part 50 level of quality and safety. have been cleared unier OMB Clearance Not 315050011.

General Design Criterion 1, " Quality Standards and B. DISCUSSION l Records," of Appendix A, " General Design Criteria for Nuclear Power Plants," to 10 CFR Part 50 requires, in The Boiler and Pressure Vessel Committee of the ASME part, that structures, systems, and components important publishes a document entitled " Code Cases."1 Generally, to safety be designed, fabricated, erected, aid tested to the individual Code Cases that make up this document quality standards commensurate with the importance of explain the intent of Code rules or provide for alterna-the safety function to be performed. Where generally tive requirements under special circumstances.

recognized codes and standards are used, Criterion 1 requires that they be identified and evaluated to deter-mine their applicability, adequacy, and sufficiency and be Most Code Cases are eventually superseded by revision supplemented or modified as necessary to ensure a quality to the Code and then are annulled by action of the ASME product in keeping with the required safety function. Council. In such uses, the intent of the aruulled Code Chse becxxnes part of the revised Code, and therefore continued Criterion 30, " Quality of Reactor Coolant Pressure use of the Code Case intent is sanctioned under the rules of Boundary," of the same appendix requires, in part, that the Code. In other cases, the Code Case is annulled txx:iuse it components that are part of the reactor coolant pressure is no langer acceptable a there is no further rcxluirement for it.

boundary be designed, fabricated, erected, and tested to A Code Case that was approved for a particular situation and the highest quality standards practical. not for a generic applicitim should be used mly fu construc-tion of the approved situation because annulment of such a Mech caf I ne rs, E g neer g Ce te , 345 t 47t Code Case could result in construction that would not Street, New York, New York 10017. meet Code reauirements.

8607030414 860630 PDR REGGD USNRC REGULATORY GUIDES 01.085 R PDR -

The guides are issued in the following ten broad divisions:

Regulatory Guides are issued to describe and make available to the public methods acceptable to the NRC staff of im plemen tin g 1. Power Reactors 6. Products specific parts of the Comrnission's regulations, to delineate tech- 2. Research and Test Reactors 7. Transportation niques used by the staff in evaluating specific problems or postu- 3. Fuels and Materials Facilities 8. Occupational Health lated accidents, or to provide guidance to applicants. Regulatory 4. Environmental and Siting 9. Antitrust and Financial Review Guides are not substitutes for regulations, and compliance with 5. Materials and Plant Protection lo. General them is not required. Methods and solutions different from those set out in the guides will be acceptable if they arovide a basis for the findings rwouisite to the issuance or contiruance of a permit or Copies of issued guides may be purchased from the Government license by the Commission.

Printing Of fice at the current GPO price. Information on current This guide was issued afterconsideration of comments received from GPO prices may be obtained by contacting the Superintendent of the public. Comments and suggestions for Irnprovements in these Documents, U.S. Government Printing O f fice, Post Office Box guides are encouraged at all times, and guides will be revised, as 3 7082, Washington, DC 20013-7082, telephone (202)275-2060 or appropriate, to accommodate comments and to reflect new informa- (202)275-2171.

tion or experience.

Written comments may be submitted to the Rules and Procedures Issued guides may also be purchased from tt e National Technical Branch. ORR ADM, U.S. Nuclear Regulatory Commission, information Service on a standing order basis. Details on this Washingon Od 20555. service may be obtained by writing NTIS, 5285 Port Royal Road, Springfield. V A 22161.

'lhe Code Cases listed in this guide are limited to those (1) Code Cases involving plate:

cases applicable to Section III that are oriented toward materials and testing. N-7-1 12-13-82 liigh Yield Strength Steel, See-tionIII, Division 1, Class 1 Vessels l All published Code Cases in tir area of materials and test- '

ing that are applicable to Section ill of the Code and were Code Case N-7-1 is acceptable subject to the following Ol in effect on hiay 20, 1985, were reviewed for inclusion in condition in addition to those conditions specified in this guide. In addition to the listing of acceptable Code the Code Case: The information required to be devel-Cases, this revision of the guide includes listings of(1) Code oped by Note 1 in the Code Case should be provided Cases that were identified as acceptable in a prior version in each referencing Safety Analysis Report.

of this regulatory guide and that were annulled after the original issuance of this guide (June 1974) and (2) Code Cases that were identified as acceptable in a prior version of (2) Code Cases involving pipe and tubes:

this regulatory guide and that were superseded by revised Code Cases after the original issuance of this guide (June 1474-1 10-29-71 Integrally Finned Tubes forSection 1974). Code Cases that are not listed herein are eithernot (N-17) 01-08-79 III endorsed or will require supplementary provisions on an 01-21-82 individual basis to attain endorsement status. 01-21-85 l 1484-3 08-13-76 SB-163 Nickel-Chromium-Iron Tub-The endorsement of a Code Case by this guide constitutes (N-20) 08-30-79 ing (Alloy 600 and 690) and Nickel-acceptance of its technical position for applications not 07-16-82 Iron-Chromium Alloy 800 at a precluded by regulatory or other requirements or by the 05-19-85 Specified blinimum Yield Strength l recommendations in this or other regulatory guides. Contin- of 40.0 Ksi SectionIII, Division 1, gent endorsement is indicated in regulatory position C.I.a Class I for specific cases. Ilowever, it is the responsibility of the 1527 06-26-72 4 Integrally Finned Tubes, Section user to make certain that no regulatory requirements are (N-26) 01-08-79 III violated and that there are no conflicts with other recom- 01-21-82 mended limitations resulting from Code Case usage. 01-21-85 l N-188-1 05-15-78 Use of Welded Ni-Fe-Cr-M o-Cu Acceptance or endorsement by the NRC staff appliesonly 07-13-81 (Alloy 825) and Nifr41o-Cb (Alloy to those Code Cases or Code Case revisions with the date 07-13-84 625) Tubing,Section III, Division l of " Council Approval" as shown in the regulatory position 1, Class 2 and 3 of this guide. Earlier or later revisions of a Code Case are N-2 24-1 05-11-81 Use of ASTM A500 Grade B and not endorsed by this guide. New Code Cases will require 04-05-84 ASTM A501 Structural Tubing for evaluation by the NRC staff to determine if they qualify Welded Attachments for Section for inclusion in the approved list. Because of the contmu- III, Class 2, 3, and MC ing change in the status of Code Cases, it is planned that N-294 08-25-80 SB-148 Alloy 952 and 954, and this guide will require periodic updating to accommodate 05-25-83 SB-62 Alloy 836 Fittings, Sec-new Code Cases and any revisions of existing Code Cases. tion III, Division 1, Class 2 N-321 07-13-81 Use of Modified SA-249, Type 304 C. REGULATORY POSITION 07-13-84 for Section III, Division 1, Class 1 l l Construction

l. The Section III ASME Code Cases 2 listed below(by N-379 04-04-83 Bimetallic Tubing Section III, Divi-number, date of Council approval, and title) are acceptable sion 1, Class I to the NRC staff for application in the construction of com- N-404 04-05-84 Annealed Alloy UNS N 06625 Over ponents forlight-water-cooled nuclear power plants. Their use UNS N 06600 Bimetallic Tubing, is acceptable within the limitations stated in the " Inquiry" Section III, Division 1, Class I and " Reply" sections of each individual Code Case, within the limitations of such NRC or other requirements as may exist, and within the additional limitations recommended Code Case N-404 is acceptable subject to the follow-by the NRC staff given with the individual Code Cases in ing conditions in addition to those conditions speci-the listing. The categorization of Code Cases used in this fied in the Code Case: The outside layer of the guide is intended to facilitate the Code Case listing and is bimetallic tubing should be limited to a minimum of not intended to indicate a limitation on its usage. 5 percent and to a maximum of 40 percent of the wall thickness. The tolerance on the outside layer
a. Materialvoriented Code Cases (Code Case number, of material should not exceed -0.000 to +0.007 inches date of Councii approval,3 and title): of the specified design wall thickness.

Lines indicate substantive changes from Revision 23.

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

3 When mc,re than one date is given, the earlier date is that on which the Code Case was approved by the ASME Council

" " " 4 y the S EC nc 1. Corrected date.

1.85-2

L N-418 12-05-84 Use of Seamless Ni-Fe-Cr-Mo-Cu rial should not exceed 170 Ksiin view of the susceptibil-Low Carbon (UNS N08028 and ity of high-strength materials to brittleness and stress O UNS N08904) Tubing,Section III, Division 1, Oasses 2 and 3 corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered acceptable for a material and, under this condition, l (3) Codes Cases invohing bars and forgings: the Design Specification should specify impact testing l for the material. For these cases, it should be demon-1337-11 05-15-78 Special Type 403 Modified Forgings strated by the applicant that (1) the impact test (N-4-11) 07-13-81 or Ears, Section 111, Division 1, results for the material meet code requirements and l 07-13-84 Class 1 and CS (2) the material is not subject to stress corrosion 1747 03-01-76 Requirements for Martensitic Stain- cracking by virtue of the fact that (a) a corrosive (N-124) 01-08-79 less Steel Forgings with 13% Chro- environment is not present and (b) the component 07-13-81 mium and 4% Nickel, Section 111, that contains the material has essentially no residual l 07-13-84 Division I stresses or assembly stresses, and it does not experi-1793 01-14-77 Structural Stml Rolled Shapes, Sec- ence frequent sustained loads in service. In the last (N-156) 01-07-80 tion III, Division 1, Oass 2, 3, and sentence of paragraph 5.3, reference should be made 02-14-83 MC to paragraph 4.5.2.2, " Alternate Atmosphere Expo.

N-299 11-17-80 Use of Nickel-Chromium-Mclybde- sure Time Periods Established by Test," of the AWS 11-28-83 rarnelumbium Alloy 625 Forgings, D.I.1 Code for the evidence presented to and accepted Section 111, Division 1, Oass 2 and by the Authorized Inspector concerning exposure of Cass 3 Components electrodes for longer periods of time. Paragraph 16.2.2 N-352 07-16-82 the of SA438 Grade 660 Forgings is not acceptable as written and should be replaced l 05-19-85 and Bars Below 700*F Without with the following: When not exempted by 16.2.1, Stress Rupture Tests, Section Ill, above, the postweld head treatment shall be performed Division 1 in accordance with NF-4622 except that for ASTM N-353 07-16-82 Marking of SA-354 Grade BD Bolt- A-710 Grade A material, it shall be at least 1000 *F l 05-19-85 ing Section 111, Division 1 (540'C) and shall not exceed 1150'F (620*C) for N-367 02-14-83 S\-372 Type V, Grade 1, Oass B, Oass 1 and Gass 2 material and 1175'F (640*C) for Section Ill, Division 1 Class 3 material. The new holding time at tempera-N-370 02-14-83 Mxtified SA-705 Grade XM-13 Forg- ture for weld thickness (nominal) shall be 30 minutes for l ings, Section 111, Division 1 1/2 inch or less, I hour per inch for thickness over N-388 07-25-83 Component Support Bolting, Sec- 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 minutes tion III, Division 1, Oasses 2, 3, for each additional inch over 5 inches. The fracture and MC toughness requirements as listed in this Code Case apply only to piping supports and not to Gass 1, (4) Code Cases involving general usage: 2, and 3 component supports. The fracture tough-ness of Casses 1, 2, and 3 comronent supports N-5-1 12-13-82 Nickel Chromium Age flardenable shall be characterized in accordance with paragraph Allcys (Alloy X750),Section III, 5.3.4 of the USNRC Standard Review Plan (NUREG-Division 1, Oasses 1, 2, 3, MC, 0800) or on a case-by-case basis.

and CS N-60-2 09 17-84 Material for Core Support Struc- 1754 01-14-77 liard Surfacing by the Spray-Fuse tures, Section lit, Division 1 (N-126) 01-07-80 Method, Section 111, Oass t, 2 and 12-13-82 3 Construction Code Case N-60-2 is acceptable subject to the follow- 1759-1 05-15-78 Material for Internal Pressure Retain-ing condition in addition to those conditions specified in (N-131-1) 07-13-81 ing items for Pressure Relief Valves, the Code Case: Welding of age-hardenable alloy SA-453 12-11-81 Section 111, Division 1, Oass 1, 2, Grade 660 and SA437 Grade 688 should be performed 12-05-84 and 3 [

when the material is in the solution-treated condition.

For SA-479 material, the maximum yield strength Code Case 1759-1 is acceptable subject to the following should not exceed 90,000 psi in view of the suscep- condition in addition to those conditions specified m tibility of this material to environmental cracking. the Code Case: Applicants using this Case should also use Code Case 1711 for the design of pressure relief N-71-13 02-20-84 Additional Materials for Subsection valves.

NF, Oasses 1, 2, 3 and MC Com-ponent Supports Fabricated by N-205 05-15-78 Use of Ductile Iron SA-395 for Welding,Section III, Division 1 07-13-81 Section 111, Division 1, C ass 3 07-13-84 Construction l Code Case N-71-13 is acceptable subject to the following N-246-2 05-25-83 SB-169, Alloy C61400, Section 111, l

condition in addition to those conditions specified in Division 1, Class 3 the Code Case: The maximum measured ultimate N-249-6 04-08-R 5 Additional Material for Subsection tensile strength (UIS) of the component support mate- NF, Classes 1,2,3, and MC Compo-1.85-3

I nent Supports Fabricated Without (4) Code Cases involving general usage:

Welding, Section 111, Division 1 N-274 03-17-80 Alternative Rules for Examination Gde Case N-2494 is acceptable subject to the following 09-07-82 of Weld Repairs for Section 111, conditions in addition to those conditions specified in Division 1 Construction the Code Case: De fracture toughness requirements apply ally to piping supports and not to Classes 1, 2,and 3 com- Code Case N-274 is acceptable subject to the following ponent supports. He fracture toughness of Gasses 1,2, condition8 in addition to those conditions specified and 3 component supports should be characterized in in the Code Case. Paragraph 6 should be expanded as accordance with paragraph 5.3.4 of the USNRC Standani follows: The ultrasonic examination procedures shall Review Plan (NUREG-0800) or on a case-by-case basis. be proven by actual demonstration, to the satisfaction The following is to be added to paragraph (5) of the of the Authorized Nuclear Inspector, that the proce-Case: For these cases, it should be demonstrated by dures are capable of detecting unacceptable cracks the owner that (1) the impact test results for the ma- according to Section XI requirements. I terial meet Code requirements and (2) the material is not subject to stress corrosion cracking by virtue of N-351 07-16-82 Use of Subsize Charpy V-Notch the fact that (a) a corrosive environment is not present 05-19-85 Specimens, Section 111, Division 1 l and (b) the component that contains the material has l N-398 02-20-84 Reporting of Garpy-V Notch Test essentially no residual stresses or assembly stresses, and it Results, Section lit, Division I does not experience frequent sustained loads in service.

Code Case N-398 is acceptable subject to the follow-N-265-1 05-19-85 Modified SA-487 Castings, Section ing condition in addition to those conditions speci-III, Division 1, Gass I fled in the Code Case: The Code Case is not accept-N-337 04-02-82 Use of ASTM B525-70 Grade II, able to steam generator or reactor coolant pump l 05-19-85 Type II, Sintered Austenitic Stain- supports. Applicants wishing to use this Code Case less Steel for Gass 2, 3, and MC should indicate in the Safety Analysis Report the Com ponent Standard Supports, component supports to which the case is applied for Section 111, Division 1 review on a case-by-case basis.

N-348 09-09-82 Use of SA-574 Socket llead Cap Screws,Section III, Division 1 2. Code Cases that were endorsed by the NRC in a

{ prior version of this guide and were later annulled by j

! Code Case N-348 is acceptable subject to the follow- action of the ASME Council should be considered as

( ing condition in addition to those conditions speci- deleted from the list of acceptable Code Cases as of the fied in the Code Case: Applicants should justify in date of the ASME Council action that approved the their Safety Analysis Reports why use of these socket annulment. Such Code Cases that were annulled on or head cap screws will not result in early failure from after July 1,1974, are listed in the following by number, stress corrosion cracking. effective dates,6 and title.7 N-371 02-14-83 12 Cr-!W-lMo-1/4V Martensitic Stain- 1141-1 08-31-61 Foreign Produced Steel less Steel Wlve Internals, Section 07-23-76 111, Division 1 1332-7 01-08-79 Requirements for Steel Forgings, (N-1-7) 07-01-82 Section III Division 1

b. Testing-oriented Code Cases: 1334-3 04-29-74 Requirements for Corrosion-(N-2) 01-08-79 Resisting Steel Bars and Shapes, (1) Code Case involving plates: 01-01-81 Section Ill 1335-10 08-28-78 Requirements for Bolting Materials, 1407-3 07-01-74 Time of Examination for Gasses 1, (N-3-10) 08-28-81 Section 111 (N-10) 01 08-79 2, and 3 Section Ill Vessels 09-16-84 01-21-82 1345-2 03-09-72 Requirements for Nickel-Molybde-l 09-17-84 (N-6) 03-01-79 num-Chromium-Iron Alloys, Se c--

tion 111 (2) Code Case involving bars and forgings:

5 The reason for the conditional acceptance of paragraph 6 is N-329 12-11-81 Examination of Bar Maten.al, Sec- to make certain that there is a qualified ultrasonic testing proce-dure capable of detecting small naws and differentiating the I

I 12-05-84 tion 111, Division I, Gass I small naws from geometric renectors. This raragraph does not in any way alter the acceptance criteria as speciGed in paragraph 3.

6 Earlier date-date Code Case was approved by ASME Council; (3) Code Case involving pipe and tubes: later date-date Code Case was annulled. Where more than two dates appear, the last date is the date that the Code Case was annulled.

01-14-77 The middle date (or dates) was the date of reafGrmation of the 1755-1 Alternative Rules for Examination Code Case.

(N 127) 01-07-80 of Welds in Piping, Section 111, ' Cod.e Cases 1401 1,1493-1, and 1599, which were listed in 02-14-83 the original issue of this guide, were annulled by Council action Gass I and 2 Construct.on prior to July 1,1974.

1.85-4

____1

I 1395-4 01-08-79 S A-508, Class 2 Forgings with Steel Weld Metal," and 1.44, " Control of the Use of 9 N-9-4)

(1412-4 07-01-82 Modified Manganese Content, Sec-11-03-75 tion Ill Modified liigh Yield Strength 01-01-77 Steel for Section 111, Division 1, Sensitized Stainless Steel."

1528-3 11-03-75 liigh Strength Steel SA-508, Class 2 01-01-78 and SA-541, Class 2 Forgings, Sec-Class 1 Vessels tion Ill, Class 1 Components Gde Ose 14124 was acceptable subject to the following Ode Case 1528-3 was acceptable subject to the follow-condition in addition to those conditions specified in ing condition in addition to those conditions speci-the Code Case: The information required to be devel- fied in the Code Case: The information required to be oped by Note 1 in the Code Case should be provided developed by Note 1 in the Gde Ose should be provided in each referencing Safety Analysis Report. The material in each referencing Safety Analysis Report.

given in the Inquiry section of the Code Case should be SA-508, Class 4b, instead of SA-508, Class 4. 1529s 06-29-72 Materials for Instrument Line Fit-07-01-73 tings, Section til 1414-5 08-29-77 liigh Yield Strength Cr-Mo Steel 1531 08-14-72 Electrical Penetrations, Special Al-(N-11-5) 08-29-80 for Section 111, Division 1, Oass 1 03-21-77 loys for ElectricalItnetration Seals, Vessels Section Ill 1532 08-14-72 StrtionIII, Oass3 Gmponents Made Code Case 1414-5 was acceptable subject to the following 01-01-78 of 8 Percent and 9 Percent Nickel condition in addition to those conditions specified in Steel the Code Case: The information required to be 1542-1 04-29-74 Type 403 Forgings or Bars for developed by Note 1 in the Code Case should be (N-33) 01-08-79 Bolting Material,Section III provided in each referencing Safety Analysis Report. 01-21-82 01-21-85 1423-2 03-09-72 Wrought Type 304 and 316 with 1557-3 01-08-79 Steel Products Refined by Second-07-01-77 Nitrogen Added, Sections I,111, (N-37-3) 07-01-82 ary Remelting. Section ill and Vill, Division I and 2 Vill, Division I and 2 1567 03-03-73 Testing Lots of Carbon and Low G Gde Case 1423-2 was acceptable subject to compliance with the recommendations contained in Regulatory Guides 1.31, " Control of Ferrite Content in Stainless Steel Weld Metal," and 1.44, " Control of the Use of 1568 01-01-78 Alloy Steel Covered Electrodes, Section til 03-03-73 Testing lots of Flux Cored and Fab-01-01-78 ricated Orbm and low Alloy Steel Sensitized Stainless Steel." Welding Electrodes, Section 111 1571 03-03-73 Additional Material for SA-234 1434-1 03-09-72 Pbstweld lleat Treatment of SA487 (N-41) 01-08-79 Carbon Steel Fittings, Section 111 01-01-78 Cass 8N Steel Ostings, Section 111 01-21-82 1456-2 06-25-73 Substitutim of Ultrasonic Examina- 01-21-85 (N-15) 03-01-79 tion for Progressive Penetrant or 1578 06-25-73 SB-167 Nickel-Chromium-Iron ( Al-Magnetic Particle Examinations of (N-43) 01-08-79 loy 600) Pipe or Tube, Section Partial Penetration and Oblique 07-01-82 Ill Nozzle Attachment Welds, Sec- 1583 06-25-73 Use of 8040 Carbon Steel Castings, tion 111 03-21-77 Section 111 1475-1 8 03-02-74 Ferritic-Austenitic Stainless Steel 1587 8

08-13-73 SA-508 Class 3 Forgings with 0.4/1.0 07-01-75 Seamless Tubes for Section Ill, 12-31-75 Ni for Section III and Vill, Division Class 2 and 3 Construction 2 Construction 1498-1 11-06-72 SA-508-Class 2 and 3, Minimum 1590 08-13-73 Chemical Analysis Variations, Sec-(N-22) 01-08-79 Tempering Temperature, Section 03-21-77 tion 111 Construction 07-01-82 111 1602-1 04-29-74 Use of SB-42 Alloy 122, SB-111 1515 03-09-72 Ultrasonic Examination of Ring 12-31-74 Alloys 122, 715 and 706, SB-171 07-01-77 Forgings for Shell Sections, Section Alloys 715 and 706 and SB-466 111, Class ! Vessels Alloys 706 and 715,Section III, 1521-1 04-29-74 Use of IICrades of SA-240, SA479, Class 2 and 3 Components .

01-01-78 SA-336, and S A-358, Section 111 1603 12-17-73 Toughness Tests When Ooss-Section j 07-01-74 Limits Orientation and location of I Code Case 1521-1 was acceptable subject to compliance Specimens with the recommendations contained in Regulatory 1605  ! !-05-73 Cr-Ni-Mo-V Bolting Material for Guides 1.31, " Control of Ferrite Content in Stainless 11-20-78 Section 111, Class 1 Components I 03-17-80 1608-1 12-17-73 Use of ASME SB-265, SB-337, SB-338, 8 Code Case was annulled on date as indicated, but the annul- -

, and SE , Qahs 1, 2, 3, ment was first so indicated in Revision 12 of this guide. and 7 Unalloyed Titanium and ASI'M 1.85-5

B-363 Titanium Welding Fittings, alloy, and heat treatment as the material being Section Ill Oass 2 and 3 Canponents examined. Alloys of equivalent P-number grouping 1612 12-17-73 Use of Type 308 Stainless Steel may be used for the fabrication of calibration blocks (N-56) 07-01-78 Rod and Bar for Section W, Oass if adjustments to signal height can be made to compen-1,2,3, and CS Construction 1613 sate for sound beam attenuation difference between 12-17-73 Use of SA-372 Cass IV Forgings, the calibration block and the material under examina-

01-01-78 Section 111 Construction tion by following the transfer method procedure of 1615 12-17-73 Use of A587-73, Section ill, Oass 3 T 535.l(d), Article 5,Section V, ASME B&PV Code, 01-01-78 Construction 1977 edition.

1616s 12-17-73 Ultrasonic Examination of Seamless 07-01-75 Austenitic Steel Pipe,Section III, 1713 08-11-75 Small Material items, Section 111, Oass 1 Construction 12-31-75 Division 1, Oass I, 2, 3, CS and MC 8

1622 03-02-74 PWi!T of Repair Welds in Carbon 1714-2 08-28-78 Postweld lleat Treatment of P-1 j 01-01-76 Steel Castings,Section III, Oass 1, (N-102-2) 07-13-81 Material,Section III, Oass MC 2, and 3 06-30-84 1625 03-02-74 Repair of Section Ill Gass 2 and 3 l 1722-1 01-08-79 Vacuum, Carbon Deoxidized SA-12-31-74 Tanks (N-107-1) 01-08-82 508 Forgings, Section Ill, Divi-1626-1 01-08-79 Normalized and Tempered 1-1/4 sion 1 (N-65-1) 01-21-82 Cr Low Alloy Steel Forgings, 1724 11-03-75 Deviatbn from the Specified Silicon l 01-21-85 Section I and Section 111 (N-108) 07-01-78 Ranges in ASME Material Specifica-1634-2 08-13-76 Use of SB-359 for Section !!!, tions, Section Ill, Division I, and (N-68) 07-01-78 Division 1, Oass 3 Constmetion VIII, Division 1 and 2 9

1637 04-29-74 F1fective Date for Compliance with 1728 11-03-75 Steel Structural Shapes and Small 01-01-75 NA-3700 of Section 111 07-01-77 Material Products for Component 1645 8 08-12-74 1Ae of DeLong Diagram for Calcu- Supports, Section Ill, Division 1 01 01-76 lating the Delta Ferrite Content of Construction Welds in Section W, Oass 1, 2, and 1740 12-22-75 Weld Metal Test, Sections, Chss 1, CS Construction 07-01-76 2, 3, MC and CS 1648 08-12-74 SA-537 Plates for Sectionm, Gassl, 1741-1 01-14-77 Interim Rules for the Required 07-01-76 2, 3, and MC Components 01-01-78 Number of Impact Tests for Rolled 8

1649 08-12-74 Modified SA453CR660 for Gass I, Shapes, Section Ill, Division 1, 01-01-76 2,3, and CS Construction 1650 Subsection NF, Component Supports 08-12-74 Use of SA414 Grade C for Gass 2 1742 03-01-76 Use of SB-75 Annealed Copper 12-31-74 and 3 Components, Section Ill, 07-01 76 Alloy 122,Section III, Division 1, Division 1 1664 Oass 2 Construction 11-04-74 Use of Cr-Ni-Fe-Mo-CuCb Stabilized 1743 03-01-76 Use of SB-98 O2-sib Rod CDA651 03-21-77 Alloy Cb-3 for Section 111 Gass 2 07-01 76 Section III, Division 1, O ass 2 and 3 Construction Components 1666 11-04-74 Use of SB-12, Alloy 122 for Sec- 1746 03-01-76 Leak Testing of Seal Welds, Sec-07-01-75 tion W, Oass 2 and 3 Construction (N-123) 03-01-79 tion m, Division 1, Oassi, 2, and 1682-1 08-11-75 Alternate Rules for Material Manu- 3 Construction 12-31-75 facturers and Suppliers,Section III, 1748 03-01-76 Low Carbon Austenitic Stainless Subarticle NA-3700 (N-125) 07-01-78 Steel Pipe Welded With Filler Metal, 1684 8 03 03-75 A637 Grade 718 for Bolting Oass 1 Sectionm, Division 1, Construction 01-01-76 and 2 Construction 1760 04-26-76 Maximum Dimensions for Isolated 8

1690 04-28-75 Stock Materials for Section m Con- 01-01-78 lbres in Welds-Gass 1 Components, 01-01-77 struction,Section III, Division 1 Section III, Division 1 1691 04-28-75 Ultrasonic Examination in Lieu of 1766 04-26-76 Testing Requirements for Welding 01-01-78 Radiography of Repair Welds for 07-01-77 Materials, Class 1, 2,3, MC and CS Vessels, Section 111, Oass 1 Omstruction, Sectionlli, Division 1 1698 06-30-75 4 Waiver of Ultrasonic Transfer 1767 04-26-76 Examination of Tubular Products (N-92) 11-20-78 Method,Section III, V, and Vill, 01-01-77 Without Filler Metal-Qass 1 Con-07-13-81 Division 1 struction,Section III, Division 1 1770 08-13-76 Testing of Electroslag Wire and Code Qtse 1698 was acceptable subject to the following (N-139) 01-01-79 Flux for Class 1. 2, 3, MC, and CS conditions in addition to those specified in the Code Construction, Section W, Division i Qise: The material from which the Insic allibration block 1772 08-13-76 Use of S A-453 Bolts in Service Be-is fabricated should be of the same product form, (N-140) 08-30-79 low 800* F Without Stress Rupture 07-16-82 Tests,Section III, Division 1

{

Code Case 1637 has been accepted only on a case-by case 8 1.85-6

I 07-01-77 Materials for Valves, Section !!!, N-190 08-29-77 Use of SA-455 for Class 3 Com-Division 1 07-01-78 ponents, Section 111, Division 1 G 1777 08-13-76 Use of SA-106, Grade C in Class 07-01-77 MC Construction, Section 111, Divi-sion 1 N-204 03-20-78 Use of Modified SA-508, Class 3, 01-01-81 and SA-541, Class 3 for Section Ill, Division 1, Oass I, 2, and 3 Con-1781 09-10-76 Use of Modified SA-487 Grade struction (N-147) 07-01-78 CA6NM,Section III, Division 1, N-206 03-20-78 Use of ASThi B151-75 Opper-Nickel Cass 1, 2, 3, MC or CS 03-16-81 Alloy 706 Rod and Bar for Section 1782 09-10-76 Use of Copper-Nickel Alloy %2 for 06-30-83 III, Division 1, Oass 3 Construction (N-148) 08-30-79 Castings,Section III, Division I, N-207-1 03-19-79 Use of Modified SA-479 Type XM-19 07-16-82 Class 3 Construction 01-21-82 for Section III, Division 1, Cass 1, 06-30-83 01-21-85 2,3, or CS Construction 1787 09-10-76 Depth of Weld Repairs for Forgings, N-223 11-30-78

  • Requirements for Stainless Steel 01-01-78 Section m, Division 1, Cass 1,2,3, 11-20-81 Precipitation liardening, Section MC and CS Construction III, Division 1, Oass MC 1794 01-14-77 Use of Seamless Al-Br, Alloy CDA N-225 11-20-78 Certification and Identification of (N-157) 01-07-80 614 Pipe, Section 111, Division 1, 01-01-81 Material for Component Supports, 01-07-83 Gass 3 Section 111, Division 1 1795 01-14-77 Examination of Weld Repairs in N-227 07-09-79 Examination of Repair Welds, Sec-(N-158) 07-01-78 Forgings, Section 111, Division 1, 07-09-82 tion 111, Cass 2 and 3 Tanks Cass 1, 2, 3 MC and CS N-242-1 04-10-80 Materials Certification, Section 111, 1798 01-14-77 Use of ASTM A352-75, Grades 05-06-83 Division 1, Classes 1, 2, 3, MC, and 01-01-78 LEA and LOC, Section m, Division 06-30-84 CS Construction 1, Oass 1,2, and 3 1810 03 03-77 Testing Lots of Carbon Steel Solid, Cale Case N-242-1 was acceptable subject to the following 03-03-80 Bare Welding Electrode or Wire, condition in addition to those conditions specified in Section Ill, Division 1, Oass I, 2, the Code Case: Applicants should identify in their Safety 1 3, MC, and CS Analysis Reports the components and supports for l 33 1819 03-23-77 Use of Type XM-19 for Construc- which the Code Case is being applied r.nd should specify 01-01-78 tion, Section Ill, Division 1, Oass the respective paragraphs of the Code Case.

G 1819-1 11,12 03-23-77 1, 2, 3 Use of Type XM 19 for Construction, (N-176-1 ) 03-23-80 Section 111, Division 1, Cass 1, 2, N-245 07-09-79 07-16-82 Use of ASTM B61-76 and B62-76 Copper Alloy Castings for Sectionill, 08-25-80 and 3 07-17-85 Division 1, Class 3 Construction 08-25-83 N-246 07-09-79 Use of SB-169, Alloy CA 614, Sec-1820 03-23-77 Alternative Ultrasonic Examination 09-07-82 tion 111, Division 1, Cass 3 (N-177) 03-17-80 Technique, Section 111, Division 1 N-248 08-30-79 Alternative Reference Radiographs, 02-14-83 07-01-80 Section m, Division 1, Casses 1, 2, 01-01-84 3, MC, and CS Construction N-178 05-25-77 Use of A5131 B271,0)A 954, Alloy N-259 01-07-80 Ni-Cu-Al Bolting Material SB 164 01-01-80 9C for Gass 3 Construction, Sec- 02-14-83 Modified, Section 111, Division 1, tion 111, Division 1 01-01-84 Class 3 N-180 07-11-77 Examination of Springs for Gass 1 N-265 83 01-07-80 Modified SA-487 Castings, Section ill, 07-01-78 Gmponent Standard Supports, Sec- 09-01-83 Division 1, Class I tion 111, Division 1 12-31-84 N-181 07-11-77 Steel Castings Refined by the Argon 05-19-85 07-11-80 Decarburization Process, Section m, N-267 01-07-80 Double-Wall Radiography, Section Division 1, Construction 07-01-81 111, Division 1, Class I and 2 N-183 07-11-77 Ue of Modified SA-182 Grade F22 N-277 03-17-80 Use of Type XM-19 Austenitic 01-01-80 for Section m, Division 1, Oass 1, 09-17-80 Stainless Steel for Section III, Divi-2 and 3 Construction sion 1, Class MC Construction N-295 01-15-81 NCA-1140, Materials,Section III, go 12-11-81 Division 1 This Code Case was reaffirmed as Case 1819-I. See regu-latory position 2 for the effective dates. 06-30-82 13 Case 1819 (N-176) was annulled December 31,1977. However, it was later reaffirmed to continue providing rules pertaining to 13 Code Case N-265 was allowed to expire on 1-7-83 because external pressure charts, of an administrative error, it was reinstated on 9183 whh no 12 Code Case N-176-1: The 3-21 A0 is an annulment date, technical changes. The Case is, therefore, considered in effect This Case was allowed to expire on 3-23-80 because of an during that period of time. Again, Code Case N-265 was allowed administrative error. It was reinstated on 8-25-80 with no to expire on 12 31-84 (mandatory annulment date). It was rein-technical chanres. It is, therefore, considered to be in effect stated as N-2651 on 5-19-85. Because of the circumstances and during that lapse in time. The 8 2s-83 is the mandatory annul- because there were no changes m the Code Case, the NRC con-ment date. The Case did not appear in Revisions 18-21 of this siders that this Case was in effect during the period of 12 31 84 guide because of the ASME administative error. through 519 85.

1.8a-7

N-296 11-17-80 Welding Material,Section III, Divi- Code Case 1358-5 was acceptable subject to the following 12-01-83 sion 1 Construction condition in addition to those conditions specified in N-298 11-17-80 Examination of Gmponent Suppats, the Code Case: The information required to be devel-12-01-83 Section Ill, Division 1, Class 1, 2, oped by Note 1 in the Code Case should be provided 3, and h!C in each referencing Safety Analysis Report.

N-310-1 08-14-81 Certification of Bolting hiaterials, 07-01-82 Section 111, Division 1, Cass I, 2, 1395-3 I l-06-72 SA-508, Oass2 Forgings with Modi-3, MC and CS 01-08-79 fied Manganese Content, Sectionlil or Section Vill, Division 2 Gde Case N-310-1 was acceptable subject to the follow- 1407-2 06-26-72 Time of Examination for Classl,2, ing conditions in addition to those conditions speci- 07-01-74 and 3, Section 111 Vessels fwd in the Code Case: Each applicant who applies 1414-3 11-03-75 liigh Yield Strength Cr-Mo Steel for the Code Case should indicate in the referencing Safety 03-01-76 Section III, Division I, Gass 1 Analysis Report (1) in what way the bolting does Vessels not meet NCA-3800 (or NA-3700), (2) where the bolting will be used in the plant, and (3) how it will Gde Case 1414-3 was acceptable subject to the following be shown that the bolting material properties required condition in addition to those conditions specified in by the Equipment Support Design Specification are the Code Case: The information required to be devel-present in the actual bolting material. oped by Note 1 in the Code Case should be provided in each referencing Safety Analysis Report.

N-317 07-13-81 A'STM A276 Bar Section 111, 07-01-82 Division 1 1414-4 03-01-76 liigh Yield Strength Cr-Mo Steel for N-342 04-02-82 Use of SA-249 and SA-312 Type 08-09-77 Section III, Division 1, Gass 1 04-02-85 317 Stainless Steel, Section Ill, Vessels Division 1, G asses 1, 2, and 3 N-372 02-14-83 SB-163 Ni-Fe-Cr-Mo-Cu Alloy 825 Gde Case 1414-4 was acceptable suliject to the follow-12-31-83 (UNS N08825) Tubing,Section III, ing condition in addition to those conditions speci-Dinsion I fied in the Code Case: The information required to be N-378 10-28-83 Examination of Piping Sumort Ma- developed by Note 1 in the Code Case should be 12-31-84 terial,Section III, Division 1,Cassi provided in each referencing Safety Analysis Report.

3. Gde Cases that were endorsed by the NRCin a prior 1484-1 04-29-74 SB 163 Nickel-Chromium-Iron Tub-version of this guide and were superseded by revised I l-04-74 ing (Alloy 600) at a Specified Mini-Code Cases on or after July 1,1974, should be consid- mum Yield Strength of 40.0 Ksi, ered as not endorsed as of the date of the Council Section 111, Cass 1 action that approved the revised version of the Code 1484-2 11-04-74 SB 163 Nickel-Gromium-Iron Tub-Cases. These Code Cases that are no longer endorsed are 08-13-76 ing (Alloy 600 and 690) at a Speci-listed in the following by number, effective dates,'4 and fied Minimum Yield Strength of title. ' 5 40.0 Ksi, Section Ill, Cass 1 1492 16 10-29-71 lbst Weld IIeat Treatment, Section1, 1332-6 03-09-72 Requirements for Steel Forgings, 03-03-75 III and VIII, Division I and 2 01-08-79 Section 111 and Vill, Division 2 1557-2 12-17-73 Steel Products Refined by Saxmdary 13354 04-29-74 Requirements for Bolting Materials 01-08-79 Remelting 08-28-78 1618 03-02-74 Material for Core Support Struc-1337-9 04-29-74 Special Type 403 Modified Forg- 03-03-75 tures - Section ill, Subsection NG 04-28-75 ings or Bars,Section III 1337-10 04-28-75 Special Type 403 Modified Forg- Code Case 1618 was acceptable subject to the follow-05-15-78 ings or Ban,Section III ing conditions in addition to those specified in the 1344-5 04-29-74 Nickel-Chromium, Age-Ilardenable Code Case:

(N-5) 01-08 79 Alloys (Alloy X750), Section Ill 01-21-82 a. Welding of age-hardenable alloy SA-453 Grade 660 12-13-82 and SA-637 Grade 688 should be performed when 1358-5 11-03-75 liigh Yield Strength Steel, Section the material is in the solution-treated condition.

(N-7) 01-08-79 111, Division 1, Class ! Vessels 01-21-82 b. Use of alloy ASTM A-564 Grade 631 is not acceptable 12-13-82 or. a generic basis.

1618-1 03-03-75 Material for Gre Support Structures

Earlier date-date Code Case was approved by ASME Council:

later date--date revision of Code Case was approved by ASME 03-01-76 Section 111, Subsection NG {

Cou n cil.

15 Code Cases 13M-2,13374, IM4-3,14M, is21, and Is42, which were listed in the original issue of this guide, were revised by the 16 ASME prior to July 1,1974. Code Case 1492 is no longer hated by ASME as a Section III Code Case and is therefore deleted from the acceptable listing.

1.85-8

l Gde Case 1618-1 was acceptable subject to the follow- Code Case 1644-2 was acceptable subject to the follow-O ing roadition in addition to those specified in the Code Case: Welding of age-hardenable alloy SA-453 Grade s50 and SA-637 Grade 688 should be per-fonned when the material is in the solution-treated ing condition in addition to those conditions speci-fled in the Code Case: The maximum measured ultimate tensile strength of the component support material should not exceed 170 Ksi.

condition.

1644-3 11-03-75 Additional hfaterials for Gmponent 1618-2 03-01-76 hlaterial for Gre Suppcrt Structures- 03-01-76 Supports - Section 111, Subsection (N-60) 01-08-79 Section III, Division 1, Subsection NF, Oass 1, 2, 3 and AIC Construc-01-21-82 NG tion 05-25-83 Code Case 1644-3 was acceptable subject to the follow-Code Case 1618-2 was acceptable subject to the follow- ing condition in addition to those conditions speci-ing condition in addition to those conditions speci- fied in the Code Case: The maximum measured fled in the Code Case: Welding of age-hardenable alloy ultimate tensile strength of the component support SA-453 Grade 660 and SA-637 Grade 688 should be material should not exceed 170 Ksi.

performed when the material is in the solution-treated condition. 1644-4 03-01-76 Additional Afaterials for Oxnponent 08-13-76 Supports and Alternate Design N-60-1 05-25-83 hlaterial for Core Support Struc- Requirements for Bolted Joints, 09-17-84 tures,Section III, Division 1 Section III, Division 1, Subsection NF, Gass 1, 2, 3 and hlC Construc-Code Case N-60-1 was acceptable subject to the fol. tion lowing condition in addition to those conditions spe-cified in the Code Case: Welding of age-hardenable Code Case 1644-4 was acceptable subject to the follow-alloy Sa-453 Grade 660 and SA-637 Grade 688 should ing conditions in addition to those specified ir the be performed when the matedal is in the solution- Code Case: The maximum measured ultimate ter.sile treated condition. strength (UTS) of the component support mater;al should not exceed 170 Ksiin view of the susceptibility G 1626 03-02-74 01-08-79 Normalized and Tempered 1-1/4 Cr low Alloy Steel Forgings, Section 1, Section Ill, and Section Vill, Divi-of high-strength materials to brittleness and stress corrosion cracking. Certain applications may exist where a UTS value of up to 190 Ksi could be considered sion 1 and 2 acceptable for a material and, under this condition, 1634 07-01-74 Use of SB-359 for Section ill, the Design Specification should specify impact testing 08-12-74 Gass 3 Construction for the material. For these cases, it should be demon-1634-1 08-12-74 Use of SB-359 for Section 111, strated by the applicant that (1) the impact test results 08-13-76 Class 3 Construction for the material meet code requirements and (2) the 1644 08-12-74 Additional Alaterials for Gmponent materiali; not subject to stress corrosion cracking by 04-28-75 Supports - Section III, Subsection virtue of the fact that (a) a corrosive environment is not NF, Classi, 2, 3, and MC Construc- present and (b) the component that contains the mate-tion rial has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained Code Case 1644 was acceptable subject to the following loads in service.

condition in addition to those conditions specified in the Code Case: The maximum measured uitimate 1644-5 08-13-76 Additional Afaterials for Compor5nt tensde strength of the component support material 03-03-77 Supports and Alternate Design should not exceed 170 Ksi. Requirements for Bolted Joints, Sation III, Division 1, SubsectionNF, 1644-1 04-28-75 Additional Materials for Component Cass 1, 2, 3 and MC Construction 06-30-75 Support - Section Ill, Subsection NF, Cass 1, 2, 3, and MC Con- Code Case 1644-5 was acceptable subject to the follow-struction ing conditions in addition to those specified in the Code Case: The maximum measured ultimate tensile Code Case 1644-1 was acceptable subject to the follow- strength (UTS) of the component support material ing condition in addition to those conditions speci- should not exceed 170 Ksi in view of the susceptibility fled in the Code Case: The maximum measured of high-strength materials to brittleness and stress ultimate tensile strength of the component support corrosion cracking. Cernin applications may exist material should not exceed 170 Ksi. where a UTS value of up to 190 Ksi could be I

considered acceptable for a material and, under this 1644-2 06-30-75 Additional Materials for Component condition, the Design Specification should specify 11-03-75 Supports - SectionIII, Subsection W, impact testing for the material. For these cases, it Gass 1, 2, 3 and MC Construction should be demonstrated by the apriicant that (1) the 1.85-9

impact test results for the material meet code require- Subsection NF, Class 1, 2, 3 and ments and (2) the material is not subject to stress MC Component Supports corrosion cracking by virtue of the fact that (a) a corrosive environment is not preser.t and (b) the Code Case 1644-8 was acceptable subject to the follow- I component that contains the material has essentially ing conditions in addition to those specified in the no residual stresses or assembly stresses, and it does Code Case: The maximum measured ultimate tensile not experience frequent sustained loads in service. strength (UTS) of the component support material should not exceed 170 Ksiin view of the susceptibility 1644-6 03-03-77 Additional Materials for Gmponent of high-strength materials to brittleness and stress 11-21-77 Supports and Alternate Design corrosion cracking. Certain applications may exist ,

Requirements for Bolted Joints, where a UTS value of up tc 190 Ksicould be considered Section !!!, Division 1, Subsection acceptable for a material and, under this condition, NF, Class 1,2,3 and MC Construc- the Design Specification should specify impact testing tion for the material For these cases, it should be demon-strated by the applicant that (1) the impact test Ode Case 16446 was acceptable subject to the following results for the material meet code requirements and i conditions in addition to those specified in the Code (2) the material is not subject to stress corrosion

)

Case: The maximum measured ultimate tensile strength cracking by virtue of the fact that (a) a corrosive t (UTS) of the component support material should not environment is not present and (b) the component exceed 170 Ksi in view of the susceptibility of high- that contains the material has essentially no residual strength materials to brittleness and stress corrosion stresses or assembly stresses, and it does not experi-cracking. Certain applications may exist where a UTS ence frequent sustained loads in service.

value of up to 190 Ksi could be considered accept-able for a material and, under this condition, the 1644-9 01-07-80 AMitional Materials for Gmponent Design Specification should specify impact testing for (N-71-9) 05-11-81 Supports Fabricated by Welding, the material. For these cases,it should be demonstrated Section 111, Division 1, Subsection by the applicant that (1) the impact test results for NF, Class 1, 2, 3, and MC Compo-the material meet code requirements and (2) the mate- nert Supports rial is not subject to stress corrosion cracking by virtue of the fact that (a) a corrosive environment is Ode Case 1644-9 was acceptable subject to the follow-not present and (b) the component that contains the ing condition in addition to those conditions specified material has essentially no residual stresses or assembly in the Code Case: In the last sentence of paragraph stresses, and it does not experience frequent sustained 5.3, reference should be made to paragraph 4.'5.2.2, loads in service. " Alternate Atmosphere Exposure Time Periods Estab-lished by Test," of the AWS D.I.1 Code for the evidence 1644-7 11-21-77 Additional Materds for Gmponent presented to and accepted by the Authorized Inspec-(N-71-7) 05-15-78 Supports, Section 111, Division 1, tor concerning exposure of electrodes for longer Subsection NF, Class I, 2, 3 and periods of time.

MC Component Supports N-71-10 05-11-81 Additional Materials for Gmponent Gde Case IM4-7 was acceptable subject to the following 06-17-82 Supports Fabricated by Welding, conditions in addition to those specified in the Code Section lil, Division 1, Subsection Case: The maximum measured ultimate tensile strength NF, Class 1, 2, 3, and MC Compo-(UTS) of the component support material should not nent Supports exceed 170 Ksi in view of the susceptibility of high-strength materials to brittleness and stress corrosion Code Case N-71-10 was acceptable subject to the follow-cracking. Certain applications may exist where a UTS ing conditions in addition to those conditions speci-value of up to 190 Ksi could be considered accept- fied in the Code Case: The maximum measured able for a material and, under this condition, the ultimate tensile strength (UTS) of the component Design Specification should specify impact testing for support material should not exceed 170 Ksi in view the material. For these cases, it should be demonstrated of the susceptibility of high-strength materials to by the applicant that (1) the impact test results for brittleness and stress corrosion cracking. Certain the material meet code requirements and (2) the applications may exist where a UTS value of up to material is not subject to stress corrosion cracking by 190 Ksi could be considered acceptable for a material virtue of the fact that (a) a corrosive environment is and, under this condition, the Design Specification not present and (b) the component that contains the should specify impact testing for the material. For material has essentially no residual stresses or assembly these cases, it should be demonstrated by the appli-stresses, and it does not experience frequent sustained cant that (1) the impact test results for the material i

loads in service. meet code requirements and (2) the material is not l subject to stress corrosion cracking by virtue of the 1644-8 05-15-78 Additional Materials for Component fact that (a) a corrosive environment is not present (N-71-8) 01-07-80 Supports, Section Ill, Division 1, and (b) the component that contains the material has 1.85-10

essentially no residual stresses or assembly stresses, and g^ it does not experience frequent sustained loads in is not present and (b) the component that contains the material has essentially no residual stresses or

] l service. In the last sentence of paragraph 53, reference

._/ should be made to paragraph 4.5.2.2," Alternate Atmos- assembly stresses, and it does not experience frequent sustained loads in service. In the last sentence of para-phere Exposure Time Periods Established by Test," of the AWS D.I.1 Code for the evidence presented to graph 53, reference should be made to paragraph 4.5.2.2,

" Alternate Atmosphere Exposure Time Periods Estab-and accepted by the Authorized Inspector concerning lished by Test," of the AWS D.l.1 Code for the evidence exposure of electrodes for longer periods of time.

presented to and accepted by the Authorized Inspector N-71-11 concerning exposure of electrodes for longer periods of 06-17-82 Additional Materials for Component ,

time. The provisions of paragraph 43 are not acceptable l 02-14-83 Supports Fabrimted by Welding, Sec-on a generic basis. Paragraph 16.2.2 is not acceptable as I

tion 5, Division 1, Subsection NF, written and should be replaced with the following: When Gass 1, 2, 3, and MC Component not exempted by 16.2.1, above, the postweld heat treat-Supports l ment shall be performed in accordance with NF-4622 except that for AS7M A-710 Grade A materialit shall be {

Code Case N-71-11 was acceptable subicct to the follow-ing conditions in addition to those conditions speci- at least 1000*F (540*C) and shall not exceed ll50*F (620*C) for Oass I and Class 2 material and 1175'F tied in the Code Ose: 7he maximum measured ultimate (MO*C) for Cass 3 material. The new holding time at tensile strength (UTS) of the component support mate-temperature for weld thickness (nominal) shall be 30 rial should not exceed 170 Ksiin view of the susceptibil- minutes for 1/2 inch or less, I hour per inch for thick-ity of high-strength materials to brittleness and stress ness over 1/2 inch to 5 inches, and 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> plus 15 corrosion cracking. Certain applications may exist where a UPS value of up to 190 Ksi could be considered minu tes for each additional inch over 5 inches.

acceptable for a material and, under this condition, the 1682 01-29-75 Design Specification should specify impact testing for Alternate Rules for Material Manu-08-11-75 facturers and Suppliers,Section III, the material. For these cases, it should be demonstrated Subarticle NA-3700 by the applicant that (1) the impact test results for the 1714 08-11-75

~

material meet code requirements and (2) the material Postweld lleat Treatment of P-1 07-11-77 4 Material, Section lit, Class MC is not subject to stress corrosion cracking by virtue 1714-1 4 07-11-77 Postweld lleat Treatment of P-1 9 of the fact that (a) a corrosive environment is not present and (b) the component that contains the material has essentially no residual stresses or assembly stresses, and it does not experience frequent sustained (N-102-1) 08-28-78 Material,Section III, Class MC 1722 11-03-75 Vacuum, Orbm Deoxidized SA-508 01-08-79 Forgings,Section III Division 1, and Vill, Division I and 2 loads in service. In the last sentence of paragraph 5.3, 1741 12-22-75 reference should be made to paragraph 4.5.2.2, Interim Rules for the Required 01-14-77 Number of Impact Tests for Rolled

" Alternate Atmosphere Exposure Time Periods Estab-Shapes, Section 111, Division I, lished by Test," of the AWS D.I.1 Code for the evidence presented to and accepted by the Authorized Subsectim NF, Canpcnent Supports 1755 04-26-76 Inspector concerning exposure of electrodes for Alternative Rules for Examination longer periods of time. 01 14-77 of Welds in Piping, Class I and 2 Cmstructim, Sectim III, Division 1 1759 08-13-76 Material for Internal Pressure Re-N-71-12 02-14-83 Additional Materials for Canponent 02-20-84 05 15-78 taining items for Pressure Relief Supports Fabricated by Welding, Valves,Sa: tion 111, Division 1, dassSection III, Division 1, Oass 1, 2, 1, 2, and 3 3, and MC Code Case 1759 was acceptable subject to the follow-Code Case N-71-12 was acceptable subject to the following condition in addition to those conditions ing condition in addition to those conditions speci-fled in the Code Case: Applicants using this Case specified in the Code Case: The maximum measured should also use Code Case 1711 for the design of ultimate tensi!e strength (UTS) of the component pressure relief valves.

support material should not exceed 170 Ksi in view of the susceptibility of high-strength materials to N-188 08-29-77 brittleness and stress corrosion cracking. Use of Welded Ni-Fe-Cr-Mo-Cu Certain 05-15-78 (Alby 825) and Ni-Cr-Mo-Cb ( Al-applications may exist where a UTS value of up to loy 625) Tubing, Section 111, 190 Ksi could be considered acceptable for a mate- Division 1, Oass 3 rial and, under this condition, the Design Specifica- N-207 03-20-78 Use of Modified SA-479 Type tion should specify impact testing for the material.

03-19-79 XM-19 for Section Ill, Division 1, For these cases, it should be demanstrated by the Class 1, 2 or 3 Construction I applicant that (1) the impact test results for the N 224 11-20-78 Use of ASTM A500 Grade B and material meet code requirements and (2) the mate- 05-11-81 ASTM A501 Structural Tubing for rial is not subject to stress corrosion cracking by Welded Attachments for Section 111, virtue of the fact that (a) a corrosive environment Class 2 and 3 Construction 1.85-11

N-242 04-12-79 hiaterials Certification, Sectionill, N-249-5 09-17-84 Additional hlaterial for Subsection 04-10-80 Division I, Classes 1,2,3, htC, and 04-08-85 NF, Casses I, 2, 3, and htC Com- i CS Construction ponent Supports Fabricated With-out Welding, Section 111, Division 1 I Code Case N-242 was acceptable subject to the follow-ing condition in addition to those conditions speci- The fracture toughness requirements as listed in Code fled in the Code Case: Applicants should identify the Case N-249-5 apply only to piping supports and not components and supports requiring the use of para- to Gasses I, 2, and 3 component supports. The frac-graphs 1.0 through 4.0 of the Code Case in their ture toughness of Oasses 1, 2, and 3 component sup-Safety Analysis Reports, ports should be characterized in accordance with para-graph 5.3.4 of the USNRC Standard Review Plan N-246-1 09-07-82 SIkl69, Alloy C 61400,Section III, (NURFG-0800) or on a case-by-case basis.

05-25-83 Division 1, Class 3 N-249 01-07-80 Additional Materials for Compo- N-265 87 01-07-80 Modified SA-487 Castings, Sec-05-11-81 nent Su pports Fabricated With- 09-01-83 tion lit, Division 1, Class I  !

out Welding, Section 111, Divi- 12-31 84 l I

sion 1, Subsection NF, Cass 1, 05-19-85 2, 3 and MC Component Supports

4. O)de Cases for Gass I mmponents that are not on the Code Case N-249 was acceptab!c subject to the follow- approved list of this guide (paragraph C.1) or other rtyulatory ing condition in addition to those conditions speci- guides, or for which authorization by the Conunission has fled in the Code Case: Footnote 2 of the Code Case not been granted, are not acceptable for Gass I c(unponents.

should apply to all materials listed in Tables 1, 2, 3, 4, and 5 of the Code Case and should be so indicated 5. Code Cases for other classes of comp (ments that are on line 5 of the " Reply." not on the approved list of this guide (paragraph C.1) or other regulatory guides should be considered not accept-N-249-1 05-11-81 Additional Materials for Compo- able on a generic basis.

06-17-82 nent Supports Fabricated Without Welding, Section Ill, Division 1, D. IMPLEMENTATION Subsection NF, dass 1, 2, 3, and

! MC Componen. Supports The purpose of this section is to provide information f to applicants regarding the use of this regulatory guide.

Code Case N-2441 was acceptable subject to the follow-ing condition in addition to those conditions speci- 1. Exept for those O>de Cases that have been annulled by fied in the Code Case: Paragraph 7 of the " Reply" action of the ASME Council, the NRC staff has found the should reference the requirements of NF-2600 instead Code Cases listed in this regulatory guide under regulatory of NF-2800. This is a typographical error in that position C.1 acceptable for appropriate use. Other Code NF-2800 does not exist. Cases nuy be mnsidered for use in accordance with footnote 6 of the Oxles mal Standards rule, E 50.55a of 10 07R Part 50.

N-249-2 06-17-82 Additional Materials for Subsection 02-14-83 NF Class 1,2,3,and MC O)mponent 2. Components ordered to a specific version of a Supports Fabricated Without Weld- Code Case need not be changed because a subsequent ing, Section 111, Division I revision of the Code Case is listed as the approved version in this guide.

N-249-3 02-14-83 Additional Materials f(r Subsection 02-20-84 NF Class 1, 2, 3, and MC Compo- 3. Components ordered to a Code Case that was nent Supports Fabricated Without previously approved for use need not be changed because Welding, Section 111, Division I the Code Case has been subsequently annulled.

N-249-4 02-20-84 Additional Material for Subsection 4. Code Cases on the approved list may be applied 09-17-84 NF, Classes 1, 2, 3, and MC Com- to components that were in process of construction ponent Supports Fabricated Without prior to the effective date of the Code Case within the Welding, Section 111, Division I limits specified in the Code Case and app'icable regula-tions or recommended in other regulatory guides.

The fracture toughness requirements as listed in Code 87 Case N-249-4 apply only to piping supports and not to Code Case N-265 was allowed to expire on 17-83 because Classes I, 2, and 3 component supports. The fracture ",'chnica

  • " 'NchYn'gYTh s i."theref c nsi r in effect i toughness of Classes I, 2, and 3 component supports during that period of time. Again, Code Case N-265 was allowed

/ to expire on 124184 (mandatory annulment date). It was rein.

l should be characterized m. accordmce with paragraph $14 stated as N 26s l on 519-85. Elecause of the circumstances and l of the USNRC Standard Review Plan (NURILO800) because there were no changes in the Code Case, the N RC con-

, siders that this Case was in effect during the period of 12 31-84 or on a case-by-case basis. through 519 85.

1.85-12

APPENDIX NUMERICAL LISTING OF CODE CASES

  • 1337-11 (N-4-11) 1793 (N-156) N-348 N-5-1 N-188-1 N-351 N-7-1 N-205 N-352 1407-3 (N-10) N-224-1 N-353 1474-1 (N-17) N-246-2 N-367 1484-3 (N-20) N-249-6 N-370 1527 (N-26) N-265-1 N-371 l N-60-2 N-274 N-379 N-71-13 N-294 N-388 1747 (N-124) N-299 N-398 1754 (N-126) N-321 N-404 1755-1 (N-127) N-329 N-418 l 1759-1 (N-131-1) N-337 e Case 1624 was inadvertently listed in the appendix of Regulato y Guide 1.85 G

1.85-13

UNITED STATES

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