6-49_Edtn_2007.pdf

Factory-Made,Wrought Steel,Buttwelding Induction Bends for Transportation and Distribution Systems AN AMERIC AN NATIO NAL STANDARDASME B16.49-2007(Revision of ASME B16.49-2000)Copyright 2008 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-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.ASME B16.49-2007(Revision of ASME B16.49-2000)Factory-Made,Wrought Steel,Buttwelding InductionBends forTransportation andDistribution SystemsAN AMERICAN NATIONAL STANDARDThree Park Avenue New York,NY 10016Copyright 2008 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-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:April 14,2008The next edition of this Standard is scheduled for publication in 2012.There will be no addendaissued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard.Interpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate.The proposed code or standard was madeavailable forpublic review andcomment thatprovides an opportunityfor additional publicinput from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“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 anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assume any such liability.Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights,and the risk of infringement of such rights,isentirely 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 accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies,which precludes the issuance of interpretations by individuals.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.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2008 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright 2008 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-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.CONTENTSForeword.ivCommittee Roster.vCorrespondence With the B16 Committee.vi1Scope and Definitions.12Pressure Ratings.23Size.24Marking.25Material.46Material for Bends Containing Welds.47Chemical Composition.58Material Properties.59Heat Treatment.810Qualification Bend.811Test Requirements.812Dimensional Requirements.913Inspection of Production Bends.1014Certification.10SR15Supplementary Requirements.10Figures1Bend Dimensional Terms.32Test Specimen Locations and Orientations Longitudinal Seam.63Test Specimen Locations and Orientations Helical Seam.74Measurement of Bend Angle and Out-of-Squareness.11Tables1Tensile Properties.42Maximum Limits of Chemical Elements That May Be Used.43Limits on Essential Variables.8Mandatory AppendixIReferences.13Nonmandatory AppendicesAQuality System Program.14BInduction Bend Data Sheet.15iiiCopyright 2008 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-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORDIn 1993,members of the ASME B31.8 Code for Pressure Piping Gas Transmission andDistribution Systems committee approached