ASTM-B129 › Historical Revision Information
Standard Specification for Cartridge Brass Cartridge Case Cups
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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—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.
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.
| Property | Rounded Unit for Observed or Calculated Value |
| Chemical composition | nearest unit in the last righthand signif- icant digit used in expressing the limiting value |
| Grain size: | |
| Up to 0.055 mm, incl | nearest multiple of 0.005 mm |
| Over 0.055 to 0.160 mm, incl | nearest 0.01 mm |
Keywords
cartridge brass annealed cups; cartridge case cups ; UNS No. C260 00; Ammunition; Brass--ammunition; Cartridge brass; UNS C26000 (cartridge brass, 70%); ICS Number Code 77.150.30 (Copper products)
To find similar documents by ASTM Volume:
02.01 (Copper and Copper Alloys)
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Document Number
ASTM-B129-12
Revision Level
2012 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
May 31, 2012
Document Type
Specification
Page Count
5 pages
Committee Number
B05.01