Значение и использование

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 compositionnearest unit in the last righthand signif-
icant digit used in expressing the
limiting value Grain size: Up to 0.055 mm, inclnearest multiple of 0.005 mm Over 0.055 to 0.160 mm, inclnearest 0.01 mm

Реферат

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.

Область применения

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.