ASTM B16 B16M-2010(2015) Standard Specification for Free-Cutting Brass Rod Bar and Shapes for Use in Screw Machines《自动车床用易切削黄铜杆材 棒材和型材的标准规格》.pdf
《ASTM B16 B16M-2010(2015) Standard Specification for Free-Cutting Brass Rod Bar and Shapes for Use in Screw Machines《自动车床用易切削黄铜杆材 棒材和型材的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM B16 B16M-2010(2015) Standard Specification for Free-Cutting Brass Rod Bar and Shapes for Use in Screw Machines《自动车床用易切削黄铜杆材 棒材和型材的标准规格》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: B16/B16M 10 (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
2、 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.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This spe
3、cification establishes 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 inc
4、h-poundunits are 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
5、 are shown in brackets.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
6、 to use.2. Referenced Documents2.1 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 and
7、Copper AlloysWrought and CastE8/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
8、 shapes), and B250/B250M (wrought 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
9、Numerical Limits,3.1.9 Inspection,3.1.10 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
10、containsadditional requirements that supplement 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/B1
11、6M XX).4.1.2 Copper Alloy UNS No. designations (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 Se
12、ction 9).4.1.6 How furnished: straight lengths or coils (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 ed
13、ition approved May 1, 2015. Published May 2015. Originallyapproved 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
14、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 States14.1.8 Quantity; tota
15、l weight, footage, or number of piecesfor each size.4.1.9 When product is 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 t
16、he time of placing the order when required:4.2.1 Tensile test for product12 in. 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 materia
17、l 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 the details
18、desired.NOTE 1Due 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 ManufactureProduct produced under this specifica-tion shall be in straight lengths; ho
19、wever, it shall be furnishedin coils when so specified in the contract or purchase order (see4.1.6).6. Chemical Composition6.1 The product shall conform to the chemical composi-tional requirements specified in Table 1 for Copper Alloy UNSNo. C36000 or C36010.6.2 The UNS designated composition limits
20、 do not precludethe possible presence of other unnamed elements; however,analysis shall be made regularly only for the minor elementslisted in Table 1, plus either copper or zinc, or plus all majorelements except one. The major element that is not analyzedshall be determined by difference between th
21、e sum of thoseelements analyzed and 100 %. By agreement between produceror supplier and purchaser, analysis may be required and limitsestablished for the elements not cited. Percentage content ofelements shown as “remainder” (rem.) is calculated by differ-ence.6.3 When all elements in Table 1 are an
22、alyzed, their sumshall be 99.5 % min.7. Temper7.1 Tempers, as defined in Practice B601, identified inTables 2-5 for product produced under this specification, are asfollows:7.1.1 O60 (soft anneal).7.1.2 H02 (half hard).7.1.3 H04 (hard).7.2 Rod and bar shall be furnished in the H02 (half hard)temper,
23、 unless otherwise specified in the ordering information(see 4.1.3).8. Mechanical Property Requirements8.1 Rockwell Hardness:8.1.1 Product12 in. 12 mm, and over in diameter ordistance between parallel surfaces, shall conform with therequirements given in Table 4 and Table 5 for temper, size, andform
24、when tested in accordance with Test Methods E18.8.1.1.1 Rockwell hardness shall be the acceptance criterionfor sizes12 in. 12 mm, or greater, based upon mechanicalproperties, except when tensile requirements are specified asthe acceptance criteria in the ordering information.8.2 Tensile Requirements
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