ASTM B974/B974M-10

    Standard Specification for Free-Cutting Bismuth Brass Rod, Bar and Wire


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    1. Scope

    1.1 This specification establishes the requirements for free-cutting bismuth brass rod, bar and wire of UNS Alloy No. C49250 and C49260 suitable for high-speed screw machine work, or for general applications.

    1.2 Typically, product made to this specification is furnished as straight lengths, or coils when requested.

    1.3 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings

    B250/B250M Specification for General Requirements for Wrought Copper Alloy Wire

    B846 Terminology for Copper and Copper Alloys

    E8/E8M Test Methods for Tension Testing of Metallic Materials

    E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry

    E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes

    E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)

    E92 Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials

    E478 Test Methods for Chemical Analysis of Copper Alloys

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    Other Standards

    JIS H 1068:2005 Method for Determination of Bismuth in Copper and Copper Alloys Available from Japanese Standards Association (JSA), Mita MT Bldg., 3-13-12 Mita, Minato-ku, Tokyo 108-0073, Japan, http://www.jsa.or.jp.


    ICS Code

    ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)

    Referencing This Standard
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    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/B0974_B0974M-10

    Citation Format

    ASTM B974 / B974M-10, Standard Specification for Free-Cutting Bismuth Brass Rod, Bar and Wire, ASTM International, West Conshohocken, PA, 2010, www.astm.org

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