ASTM B129-12

Standard Specification for Cartridge Brass Cartridge Case Cups

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.
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 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
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.

General Information

• Status: Historical
• Publication Date: 31-Mar-2012
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.01 - Plate, Sheet, and Strip

Relations

• Replaces: ASTM B129-07 - Standard Specification for Cartridge Brass Cartridge Case Cups
• Effective Date: 01-Apr-2012

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B129 −12
Standard Specification for
1
Cartridge Brass Cartridge Case Cups
This standard is issued under the fixed designation B129; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 4. Ordering Information
1.1 This specification establishes the requirements for an-
4.1 Orders of product under this specification should in-
nealed cartridge brass cups produced of Copper Alloy UNS
clude the following information:
No. C26000 for processing into cartridge cases of the follow-
4.1.1 ASTM designation and year of issue,
ing types:
4.1.2 Type (Section 1),
1.1.1 Type I, for small arms cartridge case cups, and
4.1.3 Grain size (Section 8),
1.1.2 Type II, for artillery cartridge case cups.
4.1.4 Dimensions and tolerances (see 8.1.4),
1.2 Units—Values stated in inch-pound units are to be
4.1.5 Drawing number to which order applies (see 8.1.4),
regardedasstandard,exceptforgrainsize,whichisgiveninSI
and
units. The values given in parentheses are mathematical
4.1.6 When the material is purchased for agencies of the
conversions to SI units, which are provided for information
U.S. Government, (see Supplementary Requirements section).
only and are not considered standard.
5. Material and Manufacture
2. Referenced Documents
2
5.1 Material:
2.1 ASTM Standards:
5.1.1 The material of manufacture shall be annealed plate,
B601 Classification forTemper Designations for Copper and
sheet, strip, or disks of wrought Alloy UNS No. C26000
Copper Alloys—Wrought and Cast
processed to produce even-topped cups.
B846 Terminology for Copper and Copper Alloys
E3 Guide for Preparation of Metallographic Specimens
5.2 Manufacture:
E29 Practice for Using Significant Digits in Test Data to
5.2.1 The product shall be manufactured by such blanking
Determine Conformance with Specifications
and cupping to meet the cup dimensions specified, and subse-
E112 Test Methods for Determining Average Grain Size
quently annealed. The annealed cups shall be pickled, washed,
E255 Practice for Sampling Copper and Copper Alloys for
and dried.
the Determination of Chemical Composition
E478 Test Methods for ChemicalAnalysis of CopperAlloys
6. Chemical Composition
3. Terminology
6.1 The material shall conform to the chemical composition
requirements in Table 1.
3.1 For definitions of terms related to copper and copper
alloys, refer to Terminology B846.
6.2 These composition limits do not preclude the presence
ofotherelements.Byagreementbetweenthemanufacturerand
3.2 Definitions of Terms Specific to This Standard:
purchaser, limits may be established and analyses required for
3.2.1 cup (cupping), n—a shallow cylindrical shell closed at
unnamed elements
one end, normally intended for further fabrication, formed
from a blank.
6.3 Because zinc is listed as “remainder” either copper or
zinc may be taken as the difference between the sum of results
of all elements determined and 100 %. When all elements in
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
Table 1 are determined, the sum of results shall be 99.7 % min.
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
Sheet, and Strip.
Current edition approved April 1, 2012. Published May 2012. Originally
7. Temper
approved in 1940. Last previous edition approved in 2007 as B129 – 07. DOI:
10.1520/B0129-12.
7.1 Annealed (OS)—The standard temper of annealed ma-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
terial are as designated in Table 2. Nominal grain size and
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
standard designations are detailed in Classification B601 are
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. shown.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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B129−12
TABLE 1 Chemical Requirements
11.1.2.2 For determination of dimensions—200 cups.
Copper Alloy UNS No. C26000 11.1.2.3 For the visual inspection—2000 cups.
Element Composition, %
11.1.3 Samples for chemical analysis are to be taken in
Copper 68.5–71.5
accordance with Practice E255.
Lead, max 0.07
Iron, max 0.05
12. Number of Tests and Retests
Bismuth, max 0.006
Zinc remainder
12.1 Test:
12.1.1 Chemical Analysis—Chemical composition shall be
determined in accordance with the element mean results from
A
TABLE 2 Grain Size Requirements on Sidewall
at least two replicate analyses of the samples.
Diameter of
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B129–07 Designation: B129 – 12
Standard Specification for
1
Cartridge Brass Cartridge Case Cups
This standard is issued under the fixed designation B129; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
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.
1.2The values stated in inch-pound units are the standard, except for grain size, which is given in SI units.Values in parentheses
are for information only.
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
2
2.1 ASTM Standards:
B601 Classification for Temper Designations for Copper and Copper AlloysWrought and Cast
B846 Terminology for Copper and Copper Alloys
E3 Guide for Preparation of Metallographic Specimens
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E112 Test Methods for Determining Average Grain Size
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E478 Test Methods for Chemical Analysis of Copper Alloys
3. Terminology
3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 cup (cupping), n—a shallow cylindrical shell closed at one end, normally intended for further fabrication, formed from
a blank.
4. Ordering Information
4.1 Orders of product under this specification should include the following information:
4.1.1 ASTM designation and year of issue,
4.1.2 Type (Section 1),
4.1.3 Grain size (Section 78),
4.1.4 Dimensions and tolerances (see 8.18.1.4),
4.1.5 Drawing number to which order applies (see 8.18.1.4), and
4.1.6 When the material is purchased for agencies of the U.S. Government, (see Supplementary Requirements section).
5. Material and Manufacture
5.1 Material:
5.1.1 The material of manufacture shall be annealed plate, sheet, strip, or disks of wrought Alloy UNS No. C26000 processed
to produce even-topped cups.
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,
Sheet, and Strip.
Current edition approved Oct.April 1, 2007.2012. Published October 2007.May 2012. Originally approved in 1940. Last previous edition approved in 20022007 as
B129 – 027. DOI: 10.1520/B0129-07.10.1520/B0129-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
B129 – 12
5.2 Manufacture:
5.2.1 The materialproduct shall be blanked manufactured by such blanking and cuppedcupping to meet the cup dimensions
specified, and subsequently annealed. The annealed cups shall be pickled, washed, and dried.
6. Chemical Composition
6.1 The productmaterial shall conform to the requirements prescribedchemical composition requirements in Table 1.
6.2Composition limits may be established and analysis required for unnamed elements by agreement between manufacturer and
purchaser.
6.3Either copper or zinc may be taken as the difference between the sum of all elements analyzed and 100%. Copper, when
determined by the difference, must conform to the requirements of
6.2 These composition limits do not preclude the presence of other elements. By agreement between the manufacturer and
purchaser, limits may be established and analyses required for unnamed elements
6.3 Because zinc is listed as “remainder” either copper or zinc may be taken as the difference between the sum of results of all
e
...