Regulatory Guide 1.85

Code Case Acceptability ASME Section Iii Materials

ML13350A327
Person / Time
Issue date:	06/30/1974
From:	US Atomic Energy Commission (AEC)
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RG-1.085
Download: ML13350A327 (4)

June 1974U.S. ATOMIC ENERGY COMMISSIONREGULATORYDIRECTORATE OF REGULATORY STANDARDSREGULATORY GUIDE 1.85CODE CASE ACCEPTABILITYASME SECTION III MATERIALSGUIDE0

A. INTRODUCTION

gSection 50.55a, "Codes and Standards," of 10 CFRPart 50, "Licensing of Production and UtilizationFacilities," requires, in part, that components of thereactor coolant pressure boundary be designed, fabri.cated, erected, and tested in accordance with therequirements for Class I components of Section III,"Nuclear Power Plant Components,"' of the AmericanSociety of Mechanical Engineers (ASME) Boiler andVessel Code or equivalent quality standards.Footnote 6 to Section 50,55a states that the use ofspecilic Code Cases may be authorized by the Commis-sion upon request pursuant to §50.55a(aX2Xii) whichrequires that proposed alternatives to the describedrequirements or portions thereof provide an acceptablelevel of quality and safety. General Design Criterion I,"Quality Standards and Records." of Appendix A."General Design Criteria for Nuclear Power Plants." to10 CFR Part 50 requires, in part, that structures.systems, and components important to safety be de.signed, fabricated, erected, and tested to quality stan.dards commensurate with the importance of the safetyfunction to be performed. Where generally recognizedcodes and standards are used, Criterion I requires thatthey be identified and evaluated to determine theirapplicability, adequacy, and sufficiency and be supple-mented or modified as necessary to assure a qualityproduct in keeping with the required safety function.Criterion 30, "Quality of Reactor Coolant PressureBoundary," of the same appendix requires, in part, thatcomponents which are part of the reactor coolantpressure boundary be designed, fabricated, erected, andtested to the highest quality standards practical. Appen-dix B. "Quality Assurance Criteria for Nuclear Powerl Copics may be obtained from the American Society ofMechanical Engineers, United Engineering Center, 345 East47th Street, New York, N.Y. 1007.Plants and Fuel Reprocessing Plant-,," to 10 CFR Part 50.requires, in part, that measures be established for tihecontrol of special processing of materials and thai propertesting be performed. This regulatory guide lists thoseSection III ASME Code Cases oriented to materials andtesting which are generally acceptable to the AECRegulatory staff for implementation in the Ilcnsing oflight-water-cooled nuclear power plants.

B. DISCUSSION

The Boiler and Pressure Vessel Committee of theASME publishes documents entitled "Interpretations ofthe ASME Boiler and Pressure Vessel Code,"1 Thesedocuments, referred to as "Code Cases," explain theintent of Code rules or provide Code permission to usealternative requirements under special circumstances orwith suitable precautions. Most Code Cases a~e even-tually superseded by revision to the Code and then areannulled by action of the ASNIE Council.The Code Cases listed in this guide are limited strictlyto those applicable to Section III which are orientedtoward materials and testing.All published Code Cases in the area of materials andtesting which are applicable to Section IIl of theCode and were in effect on November 5. 1973 werereviewed for inclusion in this guide. Code Cases whichwere annulled by ASME Council between the November5, 1973, and the March 2, 1974, Council meetings arenot included in the listing. Code Cases which are notlisted herein are either not endorsed or will requiresupplementary provisions on an individual basis to attainendorsement status.The endorsement of a Code Case by this guideconstitutes acceptance of its technical position forUSAEC REGULATORY GUIDES Copies of published guides may be oblaired by request indicating the division$desired to the US. Atomic Energy Commission. Washington. D.C. 70545.Regulatory Guides are issued to describe and rnaki availlble to the public Attention: Director of Regulatory Standards. Comments and suggestions ormethods acceptable to the AEC Regulatory staff of Imlemnenting specific parts of Impyrovements in the"e guides ate o encouraged and should be sent to the Secretarythe Commission'% regulations, to delineate techniqutus .ved by the staff in of the Commission. US. Atomic Energy Commission, Washington, D.C. 20545,evaluating specific problems or postulated accidents, ot to provide guidance to Attention: Chief. Public Proceedings Statf.apptlicants. flegulatory Guides are not iubstitutes for regulations and compliancewith them is not required. Methods end solutions dilffeent from those set out in The guide% Ire Issued In the following ten broad divisiont:the will be acceptable if they provide a bosh for the findings requisite tothe Issuence or continuance of a permit or license by the Commission. 1. Power Reactors 6. Products2. Reseercts and Test Reactors; 7. Transportation3. Fuels end Materials Facilities 8. Occupational HealthPublished guides will be revised periodically, at appropriate, to accommodlate 4. Environmental and Siting 9. Antitrust Reviewcommants and to reflect new information or experlence. 5. Materials aid Plant Protection 10. General applications not precluded by regulatory or otherrequirements or by the recommendations in this or otherregulatory. guides. Contingent endorsement is indicatedin Regulatory Position C.I.a for specific cases; howeverit is the responsibility of the user to make certain thatno regulatory requirements are violated and that there* are no conflicts with other recommended limitationsresulting from Code Case usage.The acceptance or endorsement by the Regulatorystaff applies only to those Code Cases or Code Cc".erevisions with the date of "Council Approval" as shownin the Regulatory Position of this guide. Earlier or laterrevisions of a Code Case are not endorscd by thi"s guide.New Code Cases as they are issued or future revisions ofexisting Code Cases will require evaluation by theRegulatory staff to determine if they qualify forinclusion in the approved list. Because of the continuingchange in the status of Code Cases, it is planned that tidsguide will require periodic updating to accommodatenew Code Cases and any revisions of existing CodeCases.

C. REGULATORY POSITION

I. The Section III ASME Code Cases2 listed in thefollowing by number, title, and date of Council approvalare acceptable to the Regulatory staff for application inthe construction of components for water-cooled nu-clear power plants. Their use is acceptable within thelimitations stated in the "Inquiry" and "Reply" sectionsof each individual code case, such Regulatory or otherrequirements as may exist, and the additional limitationsrecommended by the Regulatory. staff given with theindividual code cases in the list. The categorization ofCode Cases is intended to facilitate the Code Case listingand is not intended to indicate a limitation on its usage.a. Materials-Oriented Code Cases with Title and Dateof Council Approval:(1) Code Cases involving plate:1141-1 8/31/61 Foreign Produced Steel1401-1 3/9172 Welding Repairs to Cladding ofSection III Components AfterFinal Post-Weld Heat Treatment1492 10/29/71 Post-Weld Heat Treatment Sec-tions 1, 111, and ViII, Division Iand 21493-1 8/14/72 Post-Weld Heat Treatment, Sec.tion III1571 3/3/73 Additional. Material for SA-234Carbon Steel Fittings, SectionIll*2A numerical listing of the Code Cases appears in the Appendixc.(2) Code Cases involving pipe and tubes:1423-2 3/9/72 Wrought Type 304 and 316 withNitrogen Added, Sections 1, 111,VIII, Divisions I and 2This Code Case is acceptable subject to theconditions established in Regulatory Guides 1.31,"Control of' Stainless Steel Welding," and 1.44,"Control of the Use of Sensitized Stainless Steel."1474-1 10/29/71 Integrally Finned Tubes for Sec-tion III1484 8/4/7 1 SB-163 Nickel-Chromium-IronAlloy Tubing at a SpecifiedMinimum Yield Strength of40,000 psi, Section III1527 6/6/72 Integrally Finned Tubes, SectionIlI1529 6/26/72 Materials .or Instrument LindFittings, Sectw-n III1578 6/25/72 SB-167 Nickel-Chromium Iron(Alloy 600) Pipe o; Tube, Sec-tion III1599 8/23/73 ASTM A-234-73 Fittings V.r usein Section 111, Classes 1, 2 and 3Construction(3) Code Cases involving bars and forgings:1332-6 3/9/72 Requirements for Steel Forgings,Section III and VIII, Division 2.1334-2 1/14/72 Requirements tor Corrosion-Resisting Steel Bars and Shapes.Section 1111337.7 8/13/73 Requirements for Special Type403 Modified Forgings or Bars,Section III1395-3 11/6/72 SA-508, Class 2 Forgings withModified Manganese Content,Section III or Section VIII, Divi-sion 21498-1 11/6/72 SA-508--Class 2, Minimum Tem-pering Temperature, Section III1542 Not dtd Requirements for Type 403Modified Forgings or Bars forBolting Material, Section III1587- 8/13/73 SA-508--Class 3 Forgings with0.4/i.0 Ni for Section III andVIII, Division 2 Construction1605 11/5/73 Cr-Ni-Mo-V Bolting Material forSection 1II, Class 1 Components(4) Code Cases involving general usage:1344-3 12/18/72 Requirements for Nickel-Chromium, Age-HardenableAlloys, Section IIII1.85-2

1345-2 3/9/72 Requirements for Nickel.Molybdenum-Chromium-IronAlloys, Section III1434-1 3/9/72 Post-Weld Heat Treatment ofSA-487 Class 8N Steel Castings,Section III, Classes I and 21521 5/1/72 Use of H-Grades of SA-240,SA-479, SA-336, and SA-358,Section IIIThis Code Case is acceptable subject to theconditions established in Regulatory Guides 1.31,"Control of Stainless Steel Welding," and 1.44,"Control of the Use ot'Sensitized Stainless Steel."1531 8/14/72 Electrical Penetrations, SpecialAlloys For Electrical PenetrationSeals, Section 1111532 8/14/72 Section IIl, Class 3 ComponentsMade of 8 Percent and 9 PercentNickel Steel1557-2 12/17/73 Steel Products Refined bySecondary Melting1567 3/3/73 Testing Lots of Carbon and LowAlloy Steel Covered Electrodes,Section III1568 -3/3/73 Testing Lots of Flux Cored mndFabricated Carbon and LowAlloy Steel Welding Electrodes.Section Ill1583 6/25/73 Use of 80-40 Carbon Steel Cast-ings1590 8/13/73 Chemical Analysis Variaitiks.Section III Constructionb. Testing-Oriented Code Cases wi'!i Title and Dateof Council Approval:(I) Code Cases involving plates:1407-2 6/26/72 Time of Examination for Classes1, 2. and 3 Section Ill Vessels1456-2 6/25/73 Substitution of Ultrasonic Ex-amination for Progressive Pene.trant or Magnetic ParticleExaminations of Partial Penetra-tion and Oblique Nozzle Attach-ment Welds,Section III(2) Code Cases involving bars and forgings:1515 3/9172 Ultrasonic Examination of RingForgings for Shell Sections, Sec-tion III, Class I Vessels.2. Code Cases that are annulled by action of the ASMECouncil should be considered as deleted from theapproved list as of the date of the ASME Council action.0. IMPLEMENTATIONThe following guidance is provided for the implemen-tation of Section III ASME Code Cases involvingmaterials and testing.1. The effective date of this guide is July 1, 1974.2. This listing of Code Cases is applicable after theeffective date of this guide unless a particular Code Casehas been annulled by action of the ASME Council.3. Components ordered to a specific version of a CodeCase before the effective date of this guide need not bechanged because a subsequent revision to the Code Caseis listed as the approved version in this guide.4. Code Cases on the approved list may be applied tocomponents that were in process of construction priorto the effective date of this guide within the limitsspecified in the Code Case and applicable regulations orrecommended in other regulatory guides.5. Code Cases for Class I components which are not onthe approved list of this guide or other regulatory guides,or for which authorization by the Commission has notbeen granted, are not acceptable on a generic basis forClass I components. Special autho'ization may begranted for individual cases upon special request to theCommission.6. Code Cases for other Classes of components whichare not on the approved list of this guide or otherregulatory guides, or for which authorization by theCommission has not been granted, should not beconsidered acceptable on a generic basis. Special authori-zation may be granted for individual cases upon specialrequest to the Commission.1.85-3 APPENDIXNumerical Listing of Code Cases1141-1 15151332-6 15211334-2 15271337-7 15291344-3 15311345-? 15321395-3 15421401-1 1557-21407-2 15671423-2 15681434-1 15711456-2 15781474-1 15831484 15871492 15901493-1 15991498-1 160501.85-4