ASTM B131-96 PDF

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.