Regulatory Guide 1.85

Code Case Acceptability ASME Section Iii Materials

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

June 1974 U.S. ATOMIC ENERGY COMMISSION

REGULATORY

DIRECTORATE

OF REGULATORY

STANDARDS REGULATORY

GUIDE 1.85 CODE CASE ACCEPTABILITY

ASME SECTION III MATERIALS GUIDE 0

A. INTRODUCTION

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

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

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

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

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

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

n. Criterion

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

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

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

B. DISCUSSION

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

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

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

Washington.

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

Director of Regulatory Standards.

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

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

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

Chief. Public Proceedings Statf.apptlicants.

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

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

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

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

7. Transportation

3. Fuels end Materials Facilities

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

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

5. Materials aid Plant Protection

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

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

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

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

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

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

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

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

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

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

Bolting Material for Section 1II, Class 1 Components

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

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

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

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

0. IMPLEMENTATION

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

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

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

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