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ASME BPVC.III.A-2021
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ASME BPVC.III.A-2021 2021 ASME Boiler and Pressure Vessel Code, Section III: Rules for Construction of Nuclear Power Plant Components, Division 1: Appendices
standard by ASME International, 07/01/2021
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Product Scope / Abstract
This Subsection contains appendices, both mandatory and nonmandatory for Section III, Division 1 (Subsection NCA through NG) and Division 2, including a listing of design and design analysis methods and information, and Data Report Forms. These appendices are referenced by and are an integral part of Subsection NCA through NG and Division 2.
Careful application of this Section will help users to comply with applicable regulations within their jurisdictions, while achieving the operational, cost and safety benefits to be gained from the many industry best-practices detailed within these volumes.
Intended formanufacturers, users, constructors, designers and others concerned with the design, fabrication, assembly, erection, examination, inspection and testing of pressure vessels, plus all potential governing entities.
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ASME BPVC.III.A-2021
SECTION III
Rules for Construction of
Nuclear Facility Components
ASME Boiler and
2021
Pressure Vessel Code
An International Code
APPENDICES
Markings such as “ASME,” “ASME Standard,” or any other marking including “ASME,” ASME logos, or the ASME Single Cer�fica�on Mark shall not be used on any item that is not constructed in accordance with all of the applicable requirements of the Code or Standard. Use of of the ASME Single Cer�fica�on Mark requires formal ASME cer�fica�on; if no cer�fica�on program is available, such ASME markings may not be used. (For Cer�fica�on and Accredita�on Programs, see h�ps://www.asme.org/cer�fica�on-accredita�on.)
Items produced by par�es not formally possessing an ASME Cer�ficate may not be described, either explicitly or implicitly, as ASME cer�fied or approved in any code forms or other document.
Markings such as “ASME,” “ASME Standard,” or any other marking including “ASME,” ASME logos, or the ASME Single Cer�fica�on Mark shall not be used on any item that is not constructed in accordance with all of the applicable requirements of the Code or Standard. Use of of the ASME Single Cer�fica�on Mark requires formal ASME cer�fica�on; if no cer�fica�on program is available, such ASME markings may not be used. (For Cer�fica�on and Accredita�on Programs, see h�ps://www.asme.org/cer�fica�on-accredita�on.)
Items produced by par�es not formally possessing an ASME Cer�ficate may not be described, either explicitly or implicitly, as ASME cer�fied or approved in any code forms or other document.
AN INTERNATIONAL CODE
2021 ASME Boiler & Pressure Vessel Code
2021 Edition July 1, 2021
AN INTERNATIONAL CODE
2021 ASME Boiler & Pressure Vessel Code
2021 Edition July 1, 2021
III
RULES FOR CONSTRUCTION
OF NUCLEAR FACILITY COMPONENTS
Appendices
ASME Boiler and Pressure Vessel Committee
on Construction of Nuclear Facility Components
Two Park Avenue • New York, NY • 10016 USA
Date of Issuance: July 1, 2021
This international code or standard was developed under procedures accredited as meeting the criteria for American National Standards and it is an American National Standard. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and com- ment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.
ASME does not “approve," "certify," “rate,” or “endorse” any item, construction, proprietary device, or activity. ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such
rights, is entirely their own responsibility.
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ASME accepts responsibility for only those interpretations of this document issued in accordance with the es- tablished ASME procedures and policies, which precludes the issuance of interpretations by individuals.
The endnotes and preamble in this document (if any) are part of this American National Standard.
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ASME Single Certification Mark
"ASME" and the above ASME symbols are registered trademarks of The American Society of Mechanical Engineers.
No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher.
Library of Congress Catalog Card Number: 56-3934 Printed in the United States of America
Adopted by the Council of The American Society of Mechanical Engineers, 1914; latest edition 2021.
The American Society of Mechanical Engineers Two Park Avenue, New York, NY 10016-5990
Copyright © 2021 by
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
All rights reserved
TABLE OF CONTENTS
List of Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | xxii |
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | xxiv |
Statement of Policy on the Use of the ASME Single Certification Mark and Code Authorization in Advertising | xxvi |
Statement of Policy on the Use of ASME Marking to Identify Manufactured Items . . . . . . . . . . . . . . . . . . . . . . | xxvi |
Submittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees . . . . . . . . . . . . . . . | xxvii |
Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | xxx |
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | li |
Organization of Section III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | liv |
Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | lvii |
List of Changes in Record Number Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | lxi |
Cross-Referencing and Stylistic Changes in the Boiler and Pressure Vessel Code . . . . . . . . . . . . . . . . . . . . . . . | lxii |
Mandatory Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
Mandatory Appendix I Design Fatigue Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
Mandatory Appendix II Experimental Stress Analysis and Determination of Stress In- tensification Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 26 |
Article II-1000 Experimental Stress Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 26 |
II-1100 Introduction and Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 26 |
II-1200 Permissible Types of Noncyclic Tests and Calculation of Stresses . | 26 |
II-1300 Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 27 |
II-1400 Interpretation of Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 28 |
II-1500 Cyclic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 30 |
II-1600 Determination of Fatigue Strength Reduction Factors . . . . . . . . . . . | 31 |
II-1700 Experimental Stress Analysis of Openings . . . . . . . . . . . . . . . . . . . . . | 34 |
II-1800 Experimental Determination of Stress Indices for Piping . . . . . . . . | 34 |
II-1900 Experimental Determination of Flexibility Factors . . . . . . . . . . . . . . | 34 |
Article II-2000 Experimental Determination of Stress Intensification Factors | 35 |
II-2100 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 35 |
II-2200 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 35 |
II-2300 Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 35 |
II-2400 Stress Intensification Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 36 |
II-2500 Variations in Materials and Geometry . . . . . . . . . . . . . . . . . . . . . . . . | 37 |
II-2600 Test Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 37 |
Mandatory Appendix III Stress Intensity Values, Allowable Stress Values, Fatigue Strength Values, and Mechanical Properties for Metallic Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 39 |
Article III-1000 Determination of Allowable Stresses . . . . . . . . . . . . . . . . . . . . . . . III-1100 Location of Design Stress Intensity, Allowable Stress, Yield Strength, and Ultimate Tensile Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 39 39 |
III-1200 Derivation of the Design Stress Intensity and Allowable Stress Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 39 |
III-1300 Fatigue Strength Values for All Materials . . . . . . . . . . . . . . . . . . . . . . | 39 |
III-1400 Mechanical and Physical Properties . . . . . . . . . . . . . . . . . . . . . . . . . . | 39 |
Mandatory Appendix IV Approval of New Materials Under the ASME Boiler and Pressure Vessel Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 40 |
Mandatory Appendix V | Certificate Holder’s Data Report Forms and Instructions . . . . . | 41 |
Mandatory Appendix VI | Rounded Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 80 |
Article VI-1000 VI-1100 | Rounded Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acceptance Standards for Radiographically Determined Rounded Indications in Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 80 80 |
Mandatory Appendix XI | Rules for Bolted Flange Connections . . . . . . . . . . . . . . . . . . . . . . . | 88 |
Article XI-1000 | Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 88 |
XI-1100 | General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 88 |
Article XI-2000 | Materials for Bolted Flange Connections . . . . . . . . . . . . . . . . . . . . | 90 |
XI-2100 | Material Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 90 |
Article XI-3000 | Design Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 91 |
XI-3100 | General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 91 |
XI-3200 | Class RF Flange Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 95 |
Mandatory Appendix XII | Design Considerations for Bolted Flange Connections . . . . . . . . | 108 |
Article XII-1000 | Introduction and Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 108 |
XII-1100 | Introduction and Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 108 |
Article XII-2000 | Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 109 |
XII-2100 | Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 109 |
Mandatory Appendix XIII | Design Based on Stress Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . | 111 |
Article XIII-1000 | General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 111 |
XIII-1100 | Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 111 |
XIII-1200 | Design Acceptability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 111 |
XIII-1300 | Terms Relating to Stress Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 111 |
Article XIII-2000 | Stress Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 117 |
XIII-2100 | Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 117 |
XIII-2200 | Design Stress Values and Material Properties . . . . . . . . . . . . . . . . . . | 117 |
XIII-2300 | Derivation of Stress Intensities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 119 |
XIII-2400 XIII-2500 | Derivation of Stress Differences for Evaluation of Cyclic Operation Applications of Elastic Analysis for Stresses Beyond the Yield Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 119 120 |
XIII-2600 | Classification of Stresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 120 |
Article XIII-3000 | Stress Limits for Other Than Bolts . . . . . . . . . . . . . . . . . . . . . . . . . | 123 |
XIII-3100 | Primary Stress Intensity Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 123 |
XIII-3200 | Applications of Plastic Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 125 |
XIII-3300 | External Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 126 |
XIII-3400 | Primary Plus Secondary Stress Limits . . . . . . . . . . . . . . . . . . . . . . . . | 126 |
XIII-3500 | Analysis for Fatigue Due to Cyclic Operation . . . . . . . . . . . . . . . . . . . | 128 |
XIII-3600 | Testing Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 130 |
XIII-3700 | Special Stress Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 131 |
XIII-3800 | Deformation Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 133 |
Article XIII-4000 | Stress Limits for Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 134 |
XIII-4100 | Design Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 134 |
XIII-4200 | Level A and Level B Service Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . | 134 |
XIII-4300 | Level C Service Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 135 |
XIII-4400 | Level D Service Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 135 |
Mandatory Appendix XIII | Supplements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 136 |
Supplement XIII-I | Cross-Referencing Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 136 |
XIII-I-100 | Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 136 |
XIII-I-200 | How to Use the Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 136 |
Mandatory Appendix XVIII | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 138 |
Article XVIII-1000 | Capacity Conversions for Pressure Relief Valves . . . . . . . . . . . . | 138 |
XVIII-1100 | Procedure for Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 138 |
Mandatory Appendix XIX | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 147 |
Article XIX-1000 | Integral Flat Head With a Large Opening . . . . . . . . . . . . . . . . . . . | 147 |
XIX-1100 | General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 147 |
XIX-1200 | Design Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 148 |
Mandatory Appendix XXI | Adhesive Attachment of Nameplates . . . . . . . . . . . . . . . . . . . . . . . | 150 |
Article XXI-1000 | Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 150 |
XXI-1100 | Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 150 |
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