ASTM_B_570_-_16.pdf

Designation:B57016Standard Specification forCopper-Beryllium Alloy(UNS Nos.C17000 and C17200)Forgings and Extrusions1This standard is issued under the fixed designation B570;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 produced fromthe following alloys.Copper Alloy UNS No.Nominal%CompositionBerylliumC17000C172001.71.9NOTE1Requirements for copper-beryllium alloy rod and bar appearin Specification B196/B196M(Section 2).1.2 Unless otherwise specified,Copper Alloy UNS No.C17200 shall be the alloy furnished whenever SpecificationB570 is specified without any alloy designation.1.3 UnitsThe values stated in inch-pound units are to beregarded as standard.The values given in parentheses aremathematical conversions to SI units which are provided forinformation only and are not considered standard.1.4 The following safety hazard caveat pertains only to thetest method(s)described in this specification:1.4.1 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 to determine theapplicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2B194 Specification for Copper-BerylliumAlloy Plate,Sheet,Strip,and Rolled BarB196/B196M Specification for Copper-BerylliumAlloy Rodand BarB249/B249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod,Bar,Shapes andForgingsB601 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-terialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE112 Test Methods for Determining Average Grain Size3.General Requirements3.1 The following sections of Specification B249/B249Mform a part of this specification.3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3 Sampling,3.1.4 Number of Tests and Retests,3.1.5 Sample Preparation,3.1.6 Test Methods,3.1.7 Significance of Numerical Limits,3.1.8 Inspection,3.1.9 Rejection and Rehearing,3.1.10 Certification,3.1.11 Mill Test Report,3.1.12 Packaging,Marking,Shipping and Preservation.3.2 In addition,when a section with a title identical to thatreferenced in 3.1,above,appears in this specification,itcontains additional requirements that supplement those appear-ing in Specification B249/B249M.4.Terminology4.1 Definitions:4.1.1 For definitions of terms related to copper and copperalloys,refer to Terminology B846.4.1.2 forging,na metal part worked to a predeterminedshape by one or more such processes as hammering,upsetting,pressing,rolling,and so forth.5.Ordering Information5.1 Include the following specified choices when placingorders for products under this specification,as applicable: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 Oct.1,2016.Published November 2016.Originallyapproved in 1972.Last previous edition approved in 2010 as B57006(2010).DOI:10.1520/B0570-16.2For 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 5.1.1 ASTM designation and year of issue,5.1.2 Copper Alloy UNS No.designation(Section 1),5.1.3 Temper(Section 8)or condition(Section 12),5.1.4 Drawing showing the shape,dimensions,andtolerances,if required,5.1.5 Quantitytotal weight,or length,or number of piecesof each size,5.1.6 If an extrusion:the length(or mass)required,straight-ness as required,5.2 The following options are available but may not beincluded unless specified at the time of placing of the order,when required:5.2.1 Tension tests(Section 11),5.2.2 Finish(see Section 15),5.2.3 Grain size(see Section 9),and5.2.4 If product is purchased for agencies of the U.S.Government(see the Supplementary Requirements section ofthis specification)for additional requirements,if specified.6.Material and Manufacture6.1 Material:6.1.1 The material of manufacture shall be cast or wroughtbillet of Copper Alloy UNS No.C17000 or C17200 of suchpurity and soundness as to be suitable for processing into theproducts prescribed herein.6.1.2 The product heat number shall appear on the certifi-cation