ASTM B21 B21M-2014 Standard Specification for Naval Brass Rod Bar and Shapes《海军黄铜杆材 棒材和型材的标准规格》.pdf
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1、Designation: B21/B21M 12B21/B21M 14Standard Specification forNaval Brass Rod, Bar, and Shapes1This standard is issued under the fixed designation B21/B21M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.
2、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 establishes the requirement
3、s for naval brass rod, bar, and shapes produced from Copper Alloy UNS Nos.C46200, C46400, C46750, C47940, C48200, or C48500.1.1.1 For piston-finish rod or shafting refer to the Other Requirements Section.1.1.2 For hot forging material, refer to Specification B124/B124M.1.2 UnitsThe values stated in
4、inch-pound units or SI units are to be regarded separately as standard. Within the text, SI unitsare shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be usedindependently of the other. Combining values from the two systems may result in n
5、onconformance with the specification.1.3 WarningMercury is a definite health hazard in use and disposal (see Performance Requirements).1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to es
6、tablish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and ShapesB154 Test Method for Mercurous Nitrate Test for Copper All
7、oysB249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and ForgingsB601 Classification for Temper Designations for Copper and Copper AlloysWrought and CastB858 Test Method for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cra
8、cking in Copper AlloysB950 Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper AlloysE8E8/E8M Test Methods for Tension Testing of Metallic MaterialsE8ME18 Test Methods for Tension TestingRockwell Hardness of Metallic Materials Metric (Withdrawn 2008)E18E62 Test Me
9、thods for Rockwell Hardness of Metallic MaterialsChemical Analysis of Copper and Copper Alloys(Photometric Methods) (Withdrawn 2010)3E478 Test Methods for Chemical Analysis of Copper Alloys3. General Requirements3.1 The following sections of Specification B249/B249M constitute a part of this specifi
10、cation: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,1 This specification is under the jurisdiction ofASTM Committee B05 on Copper and CopperAlloys and is the direct responsibili
11、ty of Subcommittee B05.02 on Rod, Bar,Wire, Shapes and Forgings.Current edition approved April 1, 2012Sept. 1, 2014. Published May 2012September 2014. Originally approved in 1918. Last previous edition approved in 20062012 asB21/B21M 06.B21/B21M 12. DOI: 10.1520/B0021_B0021M-12.10.1520/B0021_B0021M-
12、14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is
13、 referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends
14、that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, Wes
15、t Conshohocken, PA 19428-2959. United States13.1.7 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 Report,3.1.13 Packaging and Product Marking, and3.1.14 Supplementary Requirements.3.2 In addition, when a secti
16、on with a title identical to that referenced in 3.1, above, appears in this specification, it containsadditional requirements which supplement those appearing in Specification B249/B249M.4. Ordering Information4.1 Include the following specified choices when placing orders for product under this spe
17、cification, as applicable:4.1.1 ASTM designation and year of issue,4.1.2 Copper Alloy UNS No. designation (Scope),4.1.3 Temper (Temper Section and related Tables),4.1.4 Formcross-section such as round, hexagonal, square, and so forth,4.1.5 Diameter or distance between parallel surfaces, width and th
18、ickness (Dimensions and Permissible Variations),4.1.6 Length (Dimensions and Permissible Variations),4.1.7 Edge contours (Dimensions and Permissible Variations),4.1.8 Quantitynumber of pieces or total weight, for each size and form, and4.1.9 Intended application.4.2 The following options are availab
19、le, but may not be included, unless specified at the time of placing of the order whenrequired:4.2.1 Tensile test for product 12 in. 12 mm and over, for the alloys and tempers listed in Table 4.4.2.2 Residual stress test (Performance Requirements section),4.2.3 Piston finish rod or shafting (Other R
20、equirements section),4.2.4 Certification (Specification B249/B249M),4.2.5 Mill test report (Specification B249/B249M),4.2.6 Heat identification or traceability details (Specification B249/B249M), and4.2.7 If product is purchased for agencies of the U.S. government (Other RequirementsPurchases for U.
21、S. Government).5. Chemical Composition5.1 The material shall conform to the chemical composition requirements specified in Table 1 for the Copper Alloy UNS No.designation specified in the ordering information.5.2 These composition limits do not preclude the presence of other elements. Limits may be
22、established and analysis requiredfor unnamed elements by agreement between the manufacturer or supplier, and purchaser.TABLE 1 Chemical RequirementsElement,%Copper Alloy UNS No.C46200 C46400 C47940 C48200 C48500Copper 62.065.0 59.062.0 63.066.0 59.062.0 59.062.0Tin 0.501.0 0.501.0 1.22.0 0.501.0 0.5
23、01.0Lead 0.20 max 0.20 max 1.02.0 0.401.0 1.32.2Zinc remainder remainder remainder remainder remainderIron 0.10 max 0.10 max 0.101.0 0.10 max 0.10 maxNickelA . . 0.100.50 . .TABLE 1 Chemical RequirementsElement,%Copper Alloy UNS No.C46200 C46400 C46750 C47940 C48200 C48500Copper 62.065.0 59.062.0 59
24、.262.5 63.066.0 59.062.0 59.062.0Tin 0.501.0 0.501.0 1.001.80 1.22.0 0.501.0 0.501.0Lead 0.20 max 0.20 max 0.25 max 1.02.0 0.401.0 1.32.2Zinc remainder remainder remainder remainder remainder remainderIron 0.10 max 0.10 max 0.10 max 0.101.0 0.10 max 0.10 maxNickelA . . 0.50 max 0.100.50 . .Antimony
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