ASTM_B_870_-_08_2014.pdf

Designation:B87008(Reapproved 2014)Standard Specification forCopper-Beryllium Alloy Forgings and Extrusions Alloys(UNS Nos.C17500 and C17510)1This standard is issued under the fixed designation B870;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification establishes the requirements forcopper-beryllium alloy forgings and extrusions.The followingalloys are specified:Copper AlloyUNS No.Nominal Composition,%BerylliumCobaltNickelC175000.502.6C175100.401.81.2 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.1.3 The following safety hazard caveat pertains to Sections10 and 11 of this specification:This standard does not purportto address all of the safety concerns,if any,associated with itsuse.It is the responsibility of the user of this standard toestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2B194 Specification for Copper-BerylliumAlloy Plate,Sheet,Strip,and Rolled BarB249/B249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod,Bar,Shapes andForgingsB441 Specification for Copper-Cobalt-Beryllium,Copper-Nickel-Beryllium,and Copper-Nickel-Lead-BerylliumRod and Bar(UNS Nos.C17500,C17510,and C17465)B601 Classification for Temper Designations for Copper andCopper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysB950 Guide for Editorial Procedures and Form of ProductSpecifications for Copper and Copper AlloysE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)E1004 Test Method for Determining Electrical ConductivityUsing the Electromagnetic(Eddy-Current)Method3.General Requirements3.1 The following sections of Specification B249/B249Mform a part of this specification:3.1.1 Material and Manufacture,3.1.2 Sampling,3.1.3 Number of Tests and Retests,3.1.4 Specimen Preparation,3.1.5 Significance of Numerical Limits,3.1.6 Inspection,3.1.7 Rejection and Rehearing,3.1.8 Certification,3.1.9 Test Reports,and3.1.10 Packaging and Package Marking.4.Terminology4.1 For definitions of terms related to copper and copperalloys,see Terminology B846.4.2 Definitions of Terms Specific to This Standard:4.2.1 extrusion,na uniform metal shape,long in relationto its cross-sectional dimensions,produced by forcing a suit-ably preheated billet or pre-formed shape through an orifice(die)of the desired cross section.4.2.2 forging,na metal part worked to a predeterminedshape by one or more such processes as hammering,upsetting,pressing,rolling,and so forth.NOTE1Forged and extruded shapes in the context of this specificationare generally construed to be large section products;round,oval,halfround,geometric custom-ordered cross-sections,and asymmetrical metalshapes.This is to generally differentiate products supplied according tothis document as opposed to forged and extruded“Rod and Bar”inSpecification B441.1This 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 1,2014.Published May 2014.Originallyapproved in 1996.Last previous edition approved in 2008 as B870-08.DOI:10.1520/B0870-08R14.2For 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 5.Ordering Information5.1 Include the following information when placing ordersfor product under this specification,as applicable:5.1.1 ASTM designation and year of issue,5.1.2 Copper Alloy UNS No.(Section 1),5.1.3 Temper(Section 8)or condition(Section 11),5.1.4 Drawing,when required,and5.1.5 Quantity:number of pieces or pounds.5.2 The following requirements are optional under thisspecification and shall be included in the contract or purchaseorder,when specified.5.2.1 Tension tests(Section 10),5.2.2 Special marking or packaging(Specification B249/B249M),5.2.3 Inspection(Specification B249/B249M),5.2.4 Certification(Specification B249/B249M),5.2.5 Mill test report(Specification B249/B249M),5.2.6 Finish(Section 14),and5.2.7 When material is purchased for agencies of the U.S.