ASTM_B_103_-_B_103M_-_15.pdf

Designation:B103/B103M15Standard Specification forPhosphor Bronze Plate,Sheet,Strip,and Rolled Bar1This standard is issued under the fixed designation B103/B103M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification establishes the requirements forcopper-tin alloy(phosphor bronze),copper-tin-lead alloy(leaded phosphor bronze),and copper-tin-lead-zinc alloy(bear-ing bronze),plate,sheet,strip,and rolled bar.The phosphorbronzes commonly are used for deep drawing into bellows andstamping and forming into spring devices and into terminalsand connectors for electrical apparatus because they combinehigh strength with high elongation.The leaded phosphorbronzes are used where strength,corrosion resistance,andmachinability are required.The bearing bronze is used inbushings,bearings,and load-bearing thrust washers.Thefollowing alloys are covered:Copper AlloyUNS No.2Nominal Composition,%Previously UsedDesignationCopperTinZincLeadC51000955.A1C51100964.AC51180964.C51900946.C52100A928.CC52180928.C524009010.DC53400945.1B1C5440088434B2ASAE Specification CA 521 conforms to the requirements of UNS No.C52100.NOTE1All of the above alloys contain small amounts of phosphorus,used as a deoxidant in melting,and to enhance the mechanical properties.1.2 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.Within the text,SIunits are shown in brackets.The values stated in each systemmay not be exact equivalents;therefore,each system shall beused independently of the other.Combining values from thetwo systems may result in non-conformance with the standard.1.3 The following safety hazard caveat pertains only to thetest method(s)described in this specification.1.3.1 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3B248 Specification for General Requirements for WroughtCopper and Copper-Alloy Plate,Sheet,Strip,and RolledBarB248M Specification for General Requirements for WroughtCopper and Copper-Alloy Plate,Sheet,Strip,and RolledBar(Metric)B601 Classification for Temper Designations for Copper andCopper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE62 Test Methods for Chemical Analysis of Copper andCopperAlloys(Photometric Methods)(Withdrawn 2010)4E75 Test Methods for Chemical Analysis of Copper-Nickeland Copper-Nickel-Zinc Alloys(Withdrawn 2010)4E255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE478 Test Methods for Chemical Analysis of Copper AlloysE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)3.General Requirements3.1 The following sections of Specifications B248 andB248M constitute a part of this specification.3.1.1 Terminology,3.1.2 Materials and Manufacturing,1This specification is under the jurisdiction ofASTM Committee B05 on Copperand CopperAlloys and is the direct responsibility of Subcommittee B05.01 on Plate,Sheet,and Strip.Current edition approved May 15,2015.Published June 2015.Originallyapproved in 1936.Last previous edition approved in 2010 as B103/B103M 10.DOI:10.1520/B0103_B0103M-15.2The UNS system for copper and copper alloys(see Practice E527)is a simpleexpansion of the former standard designation system accomplished by the additionof a prefix“C”and a suffix“00.”The suffix can be used to accommodatecomposition variations of the base alloy.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.3 Workmanship,Finish,and Appearance,3.1.4 Sampling,Except for Chemical Analysis,3.1.5 Number of Tests and Retests,3.1.6 Specimen Preparation,3.1.7 Test Methods,Except for Chemical Analysis,3.1.8 Significance of Numerical Limits,3.1.9 Inspection,3.1.10 Rejection and Rehearing,3.1.11 Certification,3.1.12 Test Reports,3.1.13 Packaging and Package Marking,and3.1.14 Supplementary Requirements.3.2 In addition,when a section with a title identical to thatreferenced in 5.1 appears in