ASTM B283/B283M-12

    Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

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    1. Scope

    1.1 This specification establishes the requirements for copper and copper alloy die forgings produced by the hot pressing method. The following copper and copper alloys are included:

    Copper or Copper Alloy
    UNS No.Name
    C11000 copper
    C14500 copper-tellurium
    C14700 copper-sulfur
    C27450 plumbing brass
    C35330 leaded brass
    C36500 leaded Muntz metal
    C37000 free-cutting Muntz metal
    C37700 forging brass
    C46400 naval brass
    C48200 medium leaded naval brass
    C48500 leaded naval brass
    C48600 naval brass
    C49250 copper-zinc-bismuth alloy
    C49255 copper-zinc-bismuth-nickel alloy
    C49260 copper-zinc-bismuth alloy
    C49300 copper-zinc-tin-bismuth alloy
    C49340 copper-zinc-tin-bismuth alloy
    C49350 copper-zinc-tin-bismuth alloy
    C49355 bismuth brass
    C61900 aluminum bronze
    C62300 aluminum bronze, 9 %
    C63000 aluminum-nickel bronze
    C63200 aluminum-nickel bronze
    C64200 aluminum-silicon bronze
    C64210 aluminum-silicon bronze, 6.7 %
    C65500 high-silicon bronze (A)
    C67500 manganese bronze (A)
    C67600 . . .
    C69300 copper-zinc-silicon
    C70620 copper-nickel 90-10
    C71520 copper-nickel 70-30
    C77400 nickel silver, 45-10
    C87700 silicon bronze
    C87710 silicon bronze

    1.2 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.

    Note 1—Nominal composition and relative forgeability ratings are given in Appendix X1. Copper-nickel alloys C70620 and C71520 are intended for welded applications with seawater exposure.

    Note 2—Wrought product intended for hot forging is described in Specification B124/B124M.

    1.3 The following safety caveat pertains only to Section 10 of this specification. 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.

    Other Standards

    ISO 7602 Determination of Tellurium Content (High Content)--Flame Atomic Absorption Spectrometric Method Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.

    JIS H 1068:2005 Method for Determination of Bismuth in Copper and Copper Alloys Available from Japanese Standards Organization (JSA), 4-1-24 Akasaka Minato-Ku, Tokyo 107-8440, Japan, http://www.jsa.or.jp. (Japanese Industrial Standards)

    ASTM Standards

    B124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes

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

    B846 Terminology for Copper and Copper Alloys

    E8/E8M Test Methods for Tension Testing of Metallic Materials

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

    E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys

    E478 Test Methods for Chemical Analysis of Copper Alloys

    Military Standards

    MIL-STD-792 Identification Marking Requirements for Special Purpose Components

    NAVSEA T9074-AS-GIB- Requirements for Nondestructive Testing Method


    UNSPSC Code

    UNSPSC Code 31133100(Copper forgings)


    DOI: 10.1520/B0283_B0283M-12

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