1、SECTION IIMATERIALSASME BPVC.II.A-2021Part AFerrous Material Specifications(SA-451 to End)2021ASME Boiler andPressure Vessel CodeAn International CodeMarkings such as“ASME,”“ASME Standard,”or any other marking including“ASME,”ASME logos,or the ASME Single Cerficaon Mark shall not be used on any item
2、 that is not constructed in accordance with all of the applicable requirements of the Code or Standard.Use of of the ASME Single Cerficaon Mark requires formal ASME cerficaon;if no cerficaon program is available,such ASME markings may not be used.(For Cerficaon and Accreditaon Programs,see hps:/www.
3、asme.org/cerficaon-accreditaon.)Items produced by pares not formally possessing an ASME Cerficate may not be described,either explicitly or implicitly,as ASME cerfied or approved in any code forms or other document.IIMATERIALSPart AFerrous MaterialSpecifications(SA-451 to End)ASME Boiler and Pressur
4、e Vessel Committeeon MaterialsAN INTERNATIONAL CODE2021 ASME Boiler&Pressure Vessel Code2021 EditionJuly 1,2021Two Park Avenue New York,NY 10016 USADate of Issuance:July 1,2021This international code or standard was developed under procedures accredited as meeting the criteria forAmerican National S
5、tandards and it is an American National Standard.The Standards Committee that approvedthe code or standard was balanced to assure that individuals from competent and concerned interests havehad an opportunity to participate.The proposed code or standard was made available for public review and com-m
6、ent that provides an opportunity for additional public input from industry,academia,regulatory agencies,andthe 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 pate
7、nt rights asserted in connection with anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liabilityfor infringement of any applicable letters patent,nor assume any such liability.Users of a code or standard areexpressly advised that determination
8、of the validity of any such patent rights,and the risk of infringement of suchrights,is entirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME
9、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.
10、ASME Collective Membership MarkASME Single Certification MarkASME and the above ASME symbols are registered trademarks of The American Society of Mechanical Engineers.The Specifications published and copyrighted by the American Society for Testing and Materialsare reproduced with the Societys permis
11、sion.No part of this document may be reproduced in any form,in an electronicretrieval system or otherwise,without the prior written permission of thepublisher.Library of Congress Catalog Card Number:56-3934Printed in the United States of AmericaAdopted by the Council of The American Society of Mecha
12、nical Engineers,1914;latest edition 2021.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2021 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedTABLE OF CONTENTSList of Sections.xiForeword.xiiiStatement of Policy on the Use of the ASME Singl
13、e Certification Mark and Code Authorization in AdvertisingxvStatement of Policy on the Use of ASME Marking to Identify Manufactured Items.xvSubmittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees.xviPersonnel.xixASTM Personnel.xlPreface.xliSpecifications Listed by Mat
14、erials.xliiSpecification Removal.lSummary of Changes.liList of Changes in Record Number Order.livCross-Referencing and Stylistic Changes in the Boiler and Pressure Vessel Code.lvSA-6/SA-6MSpecification for General Requirements for Rolled Structural Steel Bars,Plates,Shapes,and Sheet Piling.1SA-20/SA
15、-20MSpecification for General Requirements for Steel Plates for Pressure Vessels65SA-29/SA-29MSpecification for Steel Bars,Carbon and Alloy,Hot-Wrought,General Re-quirements for.101SA-31Specification for Steel Rivets and Bars for Rivets,Pressure Vessels.121SA-36/SA-36MSpecification for Carbon Struct
16、ural Steel.127SA-47/SA-47MSpecification for Ferritic Malleable Iron Castings.131SA-53/SA-53MSpecification for Pipe,Steel,Black and Hot-Dipped,Zinc-Coated,Welded andSeamless.141SA-105/SA-105MSpecification for Carbon Steel Forgings,for Piping Applications.169SA-106/SA-106MSpecification for Seamless Carbon Steel Pipe for High-Temperature Service177SA-134/SA-134MSpecification for Pipe,Steel,Electric-Fusion(ARC)-Welded(Sizes NPS 16 andOver).189SA-135/SA-135MSpecification for Electric-Resistance-Welde
