1、AN AMERICAN NATIO NAL STANDARD ASME B31T-2010Standard Toughness Requirements for PipingASME Code for Pressure Piping,B31Copyright 2010 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanfo
2、rd University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.INTENTIONALLY LEFT BLANKCopyright 2010 by the American Society of Mechanical Engineers.No reproduction may be made of this materi
3、al without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.ASME B31T-2010StandardToughnessRequirementsfor PipingA
4、SME Code for Pressure Piping,B31AN AMERICAN NATIONAL STANDARDCopyright 2010 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-
5、2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:June 1,2010This Standard will be revised when the Society approves the issuance of a new edition.There willbe no addenda issued to this edition.ASME issues written replies
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12、 an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2010 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright 2010 by th
13、e American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permi
14、tted.Uncontrolled when printed.CONTENTSForeword.ivCommittee Roster.vCorrespondence With the B31 Committee.vi1Introduction.12Glossary.13Low-Temperature Ranges and Requirements.24Impact Testing Methods and Acceptance Criteria.6Tables3.1-1Low-Temperature Service Requirements by Material Group.93.2-1Mat
15、erial Groupings by Material Specification.204.4.2-1Charpy Impact Test(Absorbed Energy)Temperature Reduction for Materialor Specimens 0.3SR 0.310.90.80.70.60.50.4 0.3SR 0.3Carbon SteelsCS 55.Max.possible Charpy294848.291044848484848484848104t 2.5 mmNote(2)CS 55.Max.possible Charpy29.48.29104484848484
16、8484848104t 2.5 mmNote(3)CS 50.Max.possible Charpy294848.291044848484848484848104t 2.5 mmNote(2)CS 50.Max.possible Charpy29.46.291044648484848484848104t 2.5 mmNote(3)CS 20.Max.possible Charpy294848.291044848484848484848104t 2.5 mmNote(2)CS 20.Max.possible Charpy29.29.291042934404648484848104t 2.5 mmNote(3)CS 20(A).292929.2929N/A.CS 0.181818.29291823293440484848104CS+20(A).777.77N/A.CS A 10.0Max.possible Charpy74848.71044848484848484848104t 93.7.49.49.491044943383227164481049Copyright 2010 by the