ASTM_B_187_-_B_187M_-_16.pdf

Designation:B187/B187M16Standard Specification forCopper,Bus Bar,Rod,and Shapes and General PurposeRod,Bar,and Shapes1This standard is issued under the fixed designation B187/B187M;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 specification2establishes the requirements for cop-per conductor bar,rod,and shapes for electrical(bus)applica-tions and rod,bar,and shapes for general applications.1.1.1 The products for electrical(bus)applications shall bemade from the following coppers:3Copper UNS No.3Reference DesignationC10100OFEC10200OFC10300OFXLPC10400,C10500,C10700OFSC10920,C10930,C10940C11000ETPC11300,C11400,C11500,C11600STPC12000DLP1.1.1.1 The product may be furnished from any copperlisted unless otherwise specified in the contract or purchaseorder.1.2 The product for general applications shall be made fromany of the coppers in 1.1.1 or the following coppers:Copper UNS No.3Reference DesignationC10800OFLPC12200DHP1.2.1 The product may be furnished from any copper listedabove unless otherwise specified in the contract or purchaseorder.Other coppers may be used upon agreement betweensupplier and purchaserer.1.3 UnitsThe values stated in either inch-pound units or inSI units are to be regarded separately as the standard.Withinthe text,the SI units are shown in brackets.The values statedin each system are not exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the specification.NOTE1Material for hot forging will be found in SpecificationB124/B124M.2.Referenced Documents2.1 ASTM Standards:4B124/B124M Specification for Copper and Copper AlloyForging Rod,Bar,and ShapesB170 Specification for Oxygen-Free Electrolytic CopperRefinery ShapesB193 Test Method for Resistivity of Electrical ConductorMaterialsB216 Specification for Tough-Pitch Fire-Refined CopperRefinery ShapesB224 Classification of CoppersB249/B249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod,Bar,Shapes andForgingsB577 Test Methods for Detection of Cuprous Oxide(Hydro-gen Embrittlement Susceptibility)in CopperB601 Classification for Temper Designations for Copper andCopper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysB900 Practice for Packaging of Copper and Copper AlloyMill Products for U.S.Government AgenciesE53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE62 Test Methods for Chemical Analysis of Copper andCopperAlloys(Photometric Methods)(Withdrawn 2010)5E255 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 the1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,Bar,Wire,Shapes and Forgings.Current edition approved April 1,2016.Published June 2016.Originallyapproved in 1944.Last previous edition approved in 2015 as B187/B187M 15.DOI:10.1520/B0187_B0187M-16.2For ASME Boiler and Pressure Vessel Code applications,see related Specifi-cation SB-187 in Section II of that Code.3Refer to Practice E527 for an explanation of the Unified Numbering System.4For 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.5The 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 Unified Numbering System(UNS)E1004 Test Method for Determining Electrical ConductivityUsing the Electromagnetic(Eddy-Current)MethodE2575 Test Method for Determination of Oxygen in Copperand Copper Alloys3.Terminology3.1 For definitions of terms related to copper and copperalloys,refer to Terminology B846.3.2 Definitions:3.2.1 bus bar,nincludes material of solid rectangular orsquare cross section or a solid section with two plane parallelsurfaces and round or other simple regularly shaped edges upto and including 12 in.in width and 0.090 in.and over inthickness.3.2.2 bus conductor stock,na bar,rod,or shape of highconductivity copper used to make electrical conductors.3.2.3 bus rod,nincludes solid round and regular polygonsof six and eight sides.3.2.4 bus shapes,na solid section other than regular rod,bar,plate,sheet,strip,or flat wire,that may be oval,half oval,half