ASTM B131

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.

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 I—Caliber 0.30.

1.1.2 Type II—Caliber 0.45.

1.1.3 Type III—Caliber 0.50.

1.1.4 Type IV—As specified in the contract or order.

1.1.5 Class I—Not annealed.

1.1.6 Class II—Annealed.

1.2 The values stated in inch-pound units are the standard, except for grain size, which is given in SI units. Values in parentheses are for information only.

2. Referenced Documents

B601 Classification for Temper Designations for Copper and Copper Alloys-Wrought and Cast
B846 Terminology for Copper and Copper Alloys
E112 Test Methods for Determining Average Grain Size
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E3 Guide for Preparation of Metallographic Specimens
E478 Test Methods for Chemical Analysis of Copper Alloys

Index Terms

bullet jackets; commercial bronze cups; ICS Number Code 77.150.30

Citing ASTM Standards

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