ASTM B 131:2022

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 Units- The values stated in inch-pound units are to be regarded as standard, except for grain size, which is given in SI units. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

77.150.30