1、Designation:B16/B16M10(Reapproved 2015)Standard Specification forFree-Cutting Brass Rod,Bar and Shapes for Use in ScrewMachines1This standard is issued under the fixed designation B16/B16M;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revis
2、ion,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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification es
3、tablishes the requirements for free-cutting brass rod,bar,wire,and shapes of any specified crosssection produced from Copper Alloy UNS Nos.C36000 orC36010 suitable for high-speed screw machining applicationsand moderate thread rolling.1.2 UnitsValues stated in either SI units or inch-poundunits are
4、to be regarded separately as standard.The valuesstated in each system may not be exact equivalents;therefore,each system shall be used independently of the other.Combin-ing values from the two systems may result in non-conformance with the standard.1.2.1 Within the text,SI units are shown in bracket
5、s.1.3 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.2.Referenced Doc
6、uments2.1 ASTM Standards:2B249/B249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod,Bar,Shapes andForgingsB250/B250M Specification for General Requirements forWrought Copper Alloy WireB601 Classification for Temper Designations for Copper andCopper AlloysWrought and Ca
7、stE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE478 Test Methods for Chemical Analysis of Copper Alloys3.General Requirements3.1 The following sections of Specifications B249/B249M(rod,bar,and shapes),and B250/B250M(wrough
8、t copper alloywire)constitute 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 Retest,3.1.6 Specimen Preparation,3.1.7 Test Methods,3.1.8 Significance of Numerical Limits,3.1.9 Inspection,3
9、.1.10 Rejection and Rehearing,3.1.11 Certification,3.1.12 Mill Test Report,3.1.13 Packaging and Package Marking,and3.1.14 Supplementary Requirements.3.2 In addition,when a section with a title identical to thosereferenced in 3.1 appears in this specification,it containsadditional requirements that s
10、upplement those appearing inSpecifications B249/B249M and B250/B250M.4.Ordering Information4.1 Include the following information when placing ordersfor product under this specification,as applicable:4.1.1 ASTM specification designation and year of issue(B16/B16M XX).4.1.2 Copper Alloy UNS No.designa
11、tions(C36000 orC36010,see Section 6 and Table 1).Unless otherwisespecified,the alloy supplied will be C36000.4.1.3 Temper(see Section 7 and Tables 2-5).4.1.4 Product cross section form(for example,round,hexagonal,square,etc.).4.1.5 Dimensions(see Section 9).4.1.6 How furnished:straight lengths or co
12、ils(see 5.2).4.1.7 Edge contours(see Section 9).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 May 1,2015.Published May 2015.Originallya
13、pproved in 1917.Last previous edition approved in 2010 as B16/B16M 10.DOI:10.1520/B0016_B0016M-10R15.2For 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 Docume
14、nt 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 4.1.8 Quantity;total weight,footage,or number of piecesfor each size.4.1.9 When product is
15、 purchased for applications requiringthread rolling(see 1.1,Tables 2-5).4.1.10 When product is purchased for agencies of the U.S.Government(see Section 11).4.2 The following options are available and shall be speci-fied at the time of placing the order when required:4.2.1 Tensile test for product12i
16、n.12 mm and over(see8.2.1).4.2.2 Certification(refer to Specifications B249/B249M orB250/B250M).4.2.3 Mill Test Report(refer to Specifications B249/B249Mor B250/B250M).5.Materials and Manufacture5.1 MaterialThe material of manufacture shall be a castbillet of Copper Alloy UNS No.C36000 or C36010 and ofsuch purity and soundness as to be suitable for hot extrusioninto rod,bar,wire,and shaped products.5.1.1 In the event that heat identification or traceability isrequired,the purchaser shall specify