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ASTM B129-12

Standard Specification for Cartridge Brass Cartridge Case Cups

Automaticky přeložený název:

Standardní specifikace pro Cartridge dechové Cartridge Case poháry

NORMA vydána dne 1.4.2012

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Informace o normě:

Označení normy: ASTM B129-12
Poznámka: NEPLATNÁ
Datum vydání normy: 1.4.2012
Kód zboží: NS-5416
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM B129-12 :

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)

Doplňující informace

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

1. 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.

2. Referenced Documents

B601-18a	Standard Classification for Temper Designations for Copper and Copper Alloys´Wrought and Cast (Includes all amendments and changes 10/24/2018).
B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
E3-11(2017)	Standard Guide for Preparation of Metallographic Specimens
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E112-13(2021)	Standard Test Methods for Determining Average Grain Size
E478-08(2017)	Standard Test Methods for Chemical Analysis of Copper Alloys