ASTM_B_159_-_B_159M_-_11.pdf

Designation:B159/B159M11Standard Specification forPhosphor Bronze Wire1This standard is issued under the fixed designation B159/B159M;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 Department of Defense.1.Scope*1.1 This specification establishes the requirements forround,square and flat phosphor bronze wire of UNS AlloyNos.C51000,C52100,and C52400 for general and springapplications.1.1.1 Rectangular and square wire of the three alloys aregenerally available in sizes up to a maximum of 0.188 in.5mm thick and 1.250 in.32 mm wide.1.1.2 Round wire from Copper Alloy UNS No.C51000 isgenerally available in sizes up to 0.500 in.13 mm indiameter.1.2 UnitsValues stated in either inch-pound units or in SIunits are to be regarded separately as standard.Within the text,the SI units are shown in brackets.The values stated in eachsystem may not be exact equivalents;therefore,each systemshall be used independently of the other.Combining valuesfrom the two systems may result in non-conformance with thespecification.1.3 Additional requirements for these products are estab-lished in Specification B250/B250M,see Section 3.1.4 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.NOTE1It is to be understood that this specification is general.Sincethe product is used for many applications where the requirements of theoperations used are too particular to be specified by any of the ordinarymechanical tests,it is frequently advisable to submit samples or drawingsto the manufacturer and secure an adjustment of temper to suit the actualapplication for which the product is intended.NOTE2Product in rod,bar and shape form is produced to Specifica-tion B139/B139M.2.Referenced Documents2.1 ASTM Standards:2B139/B139M Specification for Phosphor Bronze Rod,Bar,and ShapesB250/B250M Specification for General Requirements forWrought Copper Alloy WireB601 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)3E290 Test Methods for Bend Testing of Material for Ductil-ityE478 Test Methods for Chemical Analysis of Copper Alloys3.General Requirements3.1 The following sections of Specification B250/B250Mare a part of this specification:3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3 Workmanship,Finish,and Appearance,3.1.4 Sampling,3.1.5 Number of Tests and Retests,3.1.6 Specimen Preparation,3.1.7 Test Methods,3.1.8 Significance of Numerical Limits,3.1.9 Inspection,3.1.10 Rejection and Rehearing,3.1.11 Certification,3.1.12 Mill Test Reports,3.1.13 Packaging and Package Markings,and3.1.14 Supplementary Requirements.3.2 In addition,when a section with a title identical to oneof those referenced in 3.1 appears in this specification,it1This 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.1,2011.Published November 2011.Originallyapproved in 1941.Last previous edition approved in 2005 as B159 05.DOI:10.1520/B0159_B0159M-11.2For 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.3The 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 contains additional requirements which supplement those ap-pearing in Specification B250/B250M.4.Terminology4.1 Definitions of Terms Specific to This Standard:4.1.1 Cast,nThe maximum diameter of coiled wire whenone complete circumference rests completely on a flat surfaceas a table,workbench,or floor.4.1.2 Camber Offset,nThe axial component of curvatureof wire in an unrestrained state.NOTEThe camber is measured as the offset in the ends of oneturn of freely hanging wire.4.2 For other definitions of terms related to copper andcopper alloys,refer to Terminology B846.5.Ordering Information5.1 Include the following information when placing ordersfor product under this specification.5.1.1 ASTM designation and year of issue(for example,B159/B1