ASTM B131 - 12

    Standard Specification for Copper Alloy Bullet Jacket Cups

    Active Standard ASTM B131 | Developed by Subcommittee: B05.01

    Book of Standards Volume: 02.01


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    Abstract

    This specification covers bullet jacket preform cups made from UNS C22000 wrought copper alloy used for processing Types I-IV and Classes I-II bullet jackets. This standard contains information on chemical composition, grain size and testing requirements for the preform cups.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    Significance and Use

    For the purposes of determining compliance with the specified limits for requirements of the properties listed in the following table, an observed value, or a calculated value, shall be rounded as indicated in accordance with the rounding method of Practice E29.

    PropertyRounded Unit for Observed or Calculated Value
    Chemical compositionNearest unit in the last right-hand significant digit used in expressing the limiting value
    Grain sizeNearest multiple of 0.005 mm

    1. Scope

    1.1 This specification establishes the requirements for bullet jacket preform cups produced of Copper Alloy UNS No. C22000 for processing into bullet jackets of the following types and classes:

    1.1.1 Type ICaliber 0.30.

    1.1.2 Type IICaliber 0.45.

    1.1.3 Type IIICaliber 0.50.

    1.1.4 Type IVAs specified in the contract or order.

    1.1.5 Class INot annealed.

    1.1.6 Class IIAnnealed.

    1.2 UnitsValues stated in inch-pound units are to be regarded as standard, except for grain size, which is given in SI units. The values in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.


    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

    B601 Classification for Temper Designations for Copper and Copper Alloys--Wrought and Cast

    B846 Terminology for Copper and Copper Alloys

    E3 Guide for Preparation of Metallographic Specimens

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E112 Test Methods for Determining Average Grain Size

    E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition

    E478 Test Methods for Chemical Analysis of Copper Alloys


    ICS Code

    ICS Number Code 77.150.30 (Copper products)

    UNSPSC Code

    UNSPSC Code 46181502(Bullet proof vests)


    DOI: 10.1520/B0131-12

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    ASTM B131

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