ASTM_B_5_-_16.pdf

Designation:B516Standard Specification forHigh Conductivity Tough-Pitch Copper Refinery Shapes1This standard is issued under the fixed designation B5;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()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 for highconductivity,tough-pitch,copper wire bars,cakes,slabs,billets,ingots,and ingot bars.1.2 Copper under this specification corresponds to thedesignations“ETP”(UNS C11000)and“FRHC”(UNSC11020)as shown in Classification B224.These coppers mayalso be used to produce coppers corresponding to the follow-ing:Copper UNS No.Classification B224 DesignationC11300,C11400,C11500,and C11600STPC12000DLPC12200DHPC12300DHPSC14520DPTE1.3 Although this specification includes certain UNS desig-nations as described in Practice E527,these designations arefor cross reference only and are not specification requirements.Therefore,in case of conflict,this ASTM specification shallgovern.1.4 UnitsThe values stated in inch-pound units are to beregarded as standard.The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.1.4.1 ExceptionElectrical resistivity is expressed in SIunits.2.Referenced Documents2.1 ASTM Standards:2B193 Test Method for Resistivity of Electrical ConductorMaterialsB224 Classification of CoppersB846 Terminology for Copper and Copper AlloysB950 Guide for Editorial Procedures and Form of ProductSpecifications for Copper and Copper AlloysE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE255 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.Terminology3.1 For definitions of terms related to copper and copperalloys,refer to Terminology B846.For definitions of termsrelated to standard classification of coppers,refer to Classifi-cation B224.4.Ordering Information4.1 Include the following information,as applicable:4.1.1 ASTM Specification Designation and year of issue;4.1.2 Copper UNS No.Designation;4.1.3 Quantity,shape,and dimension of each piece,andweight;4.1.4 Should cakes,slabs,or billets be ordered for electricaluse,it must be stated in the contract or purchase order.4.1.5 Silver content in silver-bearing shapes,when required,in troy oz per short ton.5.Materials and Manufacture5.1 Materials:5.1.1 The material of manufacture shall be a form(copperwire bar,cake,slabs,billets,ingots,and ingot bars)of CopperAlloy“ETP”(UNS C11000)or“FRHC”(UNS C11020)ofsuch purity and soundness as to be suitable for processing intothe prescribed herein.5.1.2 When specified in the contract or purchase order thatheat identification or traceability is required,the purchasershall specify the details desired.1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.07 onRefined Copper.Current edition approved Oct.1,2016.Published November 2016.Originallyapproved in 1911.Last previous edition approved in 2011 as B5 11.DOI:10.1520/B0005-16.2For 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.*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 NOTE1Due to the discontinuous nature of the processing of castingsinto wrought products,it is not always practical to identify a specificcasting analysis with a specific quantity of finished material.5.2 Manufacture:5.2.1 The product shall be hot-or cold-worked as to producea uniform wrought structure in the finished product.6.Chemical Composition6.1 The copper in all shapes shall meet the minimumrequirement for copper,including silver,of 99.90%.6.1.1 These composition limits do not preclude the presenceof other elements.Limits for unnamed elements may beestablished,and analysis required,by agreement between thesupplier and the purchaser.6.2 For the STP(silver-bearing)coppers,the addition ofsilver up to an average of 30 troy oz per short ton(0.10%)willbe considered within the specification,with no individual silveranalysis to exceed 35 troy oz per short ton(0.12%).7.Physical Property Requirements7.1 Electrical Resistivity:7.1.1 The maximum mass resistivity for w