BPVC_2015_Section_I_-_Rules_for_Construction_of_Power_Boilers.pdf

2015ASME Boiler andPressure Vessel CodeAn International CodeRules for Constructionof Power BoilersSECTION IASME BPVC.I-2015Copyrighted material licensed to University of Toronto by Thomson Scientific,Inc.().This copy downloaded on 2015-07-31 23:27:17-0500 by authorized user logan ahlstrom.No further reproduction or distribution is permitted.IRULES FOR CONSTRUCTIONOF POWER BOILERSASME Boiler and Pressure Vessel Committeeon Power BoilersAN INTERNATIONAL CODE2015 ASME Boiler&Pressure Vessel Code2015 EditionJuly 1,2015Two Park Avenue New York,NY 10016 USACopyrighted material licensed to University of Toronto by Thomson Scientific,Inc.().This copy downloaded on 2015-07-31 23:27:17-0500 by authorized user logan ahlstrom.No further reproduction or distribution is permitted.Date of Issuance:July 1,2015This international code or standard was developed under procedures accredited as meeting the criteria forAmerican National Standards 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-ment that provides an opportunity for additional public input from industry,academia,regulatory agencies,andthe 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 liabilityfor infringement of any applicable letters patent,nor assume any such liability.Users of a code or standard areexpressly advised that determination 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 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.ASME collective membership markCertification MarkThe above ASME symbol is registered in the U.S.Patent Office.“ASME”is the trademark of The American Society of Mechanical Engineers.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 Mechanical Engineers,1914;latest edition 2015.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2015 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedCopyrighted material licensed to University of Toronto by Thomson Scientific,Inc.().This copy downloaded on 2015-07-31 23:27:17-0500 by authorized user logan ahlstrom.No further reproduction or distribution is permitted.TABLE OF CONTENTSList of Sections.xvForeword.xviiStatement of Policy on the Use of the Certification Mark and Code Authorization in Advertising.xixStatement of Policy on the Use of ASME Marking to Identify Manufactured Items.xixSubmittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees.xxPersonnel.xxiiPreamble.xxxixSummary of Changes.xliList of Changes in Record Number Order.xlviCross-Referencing and Stylistic Changes in the Boiler and Pressure Vessel Code.xlixPart PGGeneral Requirements for all Methods of Construction.1General.1PG-1Scope.1PG-2Service Limitations.1PG-3Referenced Standards.1PG-4Units.1Materials.2PG-5General.2PG-6Plate.3PG-7Forgings.3PG-8Castings.3PG-9Pipes,Tubes,and PressureContaining Parts.3PG-10Material Identified With or Produced to a Specification Not Permitted by ThisSection,and Material Not Fully Identified.6PG-11Prefabricated or Preformed Pressure Parts Furnished Without a CertificationMark.7PG-12Water Level Indicators and Connector Material.10PG-13Stays.10PG-14Rivets.10Design.11PG-16General.11PG-17Fabrication by a Combination of Methods.11PG-18Design Validation by Proof Test.11PG-19Cold Forming of Austenitic Materials.11PG-20Cold Forming of Creep Strength Enhanced Ferritic Steels.13PG-21Maximum Allowable Working Pressure.13PG-22Loadings.14PG-23Stress Values for Calculation Formulas.14PG-25Quality Factors for Steel Castings.15PG-26Weld Joint Strength Reduction Factor.16PG-27Cylindrical Components Under Internal Pressure.16PG-28Components Under External Pressure.21PG-29Dished Heads.24PG-30Stayed Dished Heads.25PG-31Unstayed Flat Heads and Covers.25Openings and Compensation.29PG-32Openings in Shells,He