Standard Active Last Updated: May 23, 2022 Track Document
ASTM B129-22

Standard Specification for Cartridge Brass Cartridge Case Cups

Standard Specification for Cartridge Brass Cartridge Case Cups B0129-22 ASTM|B0129-22|en-US Standard Specification for Cartridge Brass Cartridge Case Cups Standard new BOS Vol. 02.01 Committee B05
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Significance and Use

15.1 For the purpose 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.

Property

Rounded Unit for Observed or Calculated Value

 

 

Chemical Composition

Nearest unit in the last right-hand significant digit used in expressing  the limiting value

Grain size:

 

 Under 0.060 mm

Nearest multiple of 0.005 mm

 0.060 mm and over

Nearest 0.01 mm

Abstract

This specification establishes the requirements for annealed cartridge brass cups produced of Copper Alloy UNS No. C26000 for processing into for Type I and II cartridge cases, which are for small arms cartridge case cups and for artillery cartridge case cups, respectively. The material of manufacture shall be annealed plate, sheet, strip, or disks of wrought Alloy UNS No. 26000 processed to produce even-topped cups. The material shall be blanked and cupped to meet the cup dimensions specified, and subsequently annealed. The annealed cups shall be pickled, washed, and dried. The chemical and the grain size requirements are specified.

Scope

1.1 This specification establishes the requirements for annealed cartridge brass cups produced of Copper Alloy UNS No. C26000 for processing into cartridge cases of the following types:

1.1.1 Type I, for small arms cartridge case cups, and

1.1.2 Type II, for artillery cartridge case cups.

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, which 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.

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Details
Book of Standards Volume: 02.01
Developed by Subcommittee: B05.01
Pages: 5
DOI: 10.1520/B0129-22
ICS Code: 77.150.30