ASTM B129-22

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
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
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.

General Information

• Status: Published
• Publication Date: 30-Apr-2022
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.01 - Plate, Sheet, and Strip

Standards Content (Sample)

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.
Designation:B129 −22
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* 3. Terminology
3.1 For definitions of terms related to copper and copper
1.1 This specification establishes the requirements for an-
alloys, refer to Terminology B846.
nealed cartridge brass cups produced of Copper Alloy UNS
No. C26000 for processing into cartridge cases of the follow-
3.2 Definitions of Terms Specific to This Standard:
ing types:
3.2.1 cup (cupping), n—a shallow cylindrical shell closed at
1.1.1 Type I, for small arms cartridge case cups, and one end, normally intended for further fabrication, formed
from a blank.
1.1.2 Type II, for artillery cartridge case cups.
1.2 Units—The values stated in inch-pound units are to be
4. Ordering Information
regarded as standard, except for grain size, which is given in SI
4.1 Include the following specified choices when placing
units. The values given in parentheses are mathematical
orders for product under this specification, as applicable:
conversions to SI units, which are provided for information
4.1.1 ASTM designation and year of issue,
only and are not considered standard.
4.1.2 Type (Section 1),
1.3 This international standard was developed in accor-
4.1.3 Temper (Section 7),
dance with internationally recognized principles on standard-
4.1.4 Dimensions and tolerances (Section 9),
ization established in the Decision on Principles for the
4.1.5 Drawing number to which order applies (Section 9).
Development of International Standards, Guides and Recom-
4.2 The following options are available but may not be
mendations issued by the World Trade Organization Technical
included unless specified at the time of placing of the order
Barriers to Trade (TBT) Committee.
when required:
4.2.1 Grain size analysis of the base (Section 14),
2. Referenced Documents
4.2.2 Source inspection (Section 16),
2
2.1 ASTM Standards:
4.2.3 Certification,
B601 Classification forTemper Designations for Copper and
4.2.4 Test Report, and
Copper Alloys—Wrought and Cast
4.2.5 If product is purchased for agencies of the U.S.
B846 Terminology for Copper and Copper Alloys
Government (see the Supplementary Requirements section of
E3 Guide for Preparation of Metallographic Specimens
this specification for additional requirements, if specified).
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
5. Materials and Manufacture
E112 Test Methods for Determining Average Grain Size
5.1 Materials:
E255 Practice for Sampling Copper and Copper Alloys for
5.1.1 The material of manufacture shall be annealed plate,
the Determination of Chemical Composition
sheet, strip, or disks of wrought Copper Alloy UNS No.
E478 Test Methods for ChemicalAnalysis of CopperAlloys
C26000 processed into the products prescribed herein.
5.2 Manufacture:
5.2.1 The product shall be manufactured by such blanking
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and cupping to meet the cup dimensions specified, and subse-
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
Sheet, and Strip.
quently annealed. The annealed cups shall be finish, plain
Current edition approved May 1, 2022. Published May 2022. Originally
pickled, and dried.
approved in 1940. Last previous edition approved in 2017 as B129-17. DOI:
10.1520/B0129-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Chemical Composition
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6.1 The material shall conform to the chemical composition
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. requirements in Table 1.
*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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B129−22
TABLE 1 Chemical Requirements
10. Workmanship, Finish, and Appearance
Copper Alloy UNS No. C26000
10.1 The cups shall be uniform in quality and shall be free
Element Composition, %
of oil, grease, oxidation, stains, scale, chips, acid, dirt or grit,
Copper 68.5–71.5
dented or bent edges, laminations, slivers, laps, cracks, deep
Lead, max 0.07
Iron, max 0.05
scratches, wrinkles,
...

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 − 17 B129 − 22
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.
1.2 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.
2. Referenced Documents
2
2.1 ASTM Standards:
B601 Classification for Temper Designations for Copper and Copper Alloys—Wrought 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:
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 April 1, 2017May 1, 2022. Published April 2017May 2022. Originally approved in 1940. Last previous edition approved in 20122017 as
B129-12.-17. DOI: 10.1520/B0129-17.10.1520/B0129-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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 − 22
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 Include the following specified choices when placing orders for product under this specification, as applicable:
4.1.1 ASTM designation and year of issue,
4.1.2 Type (Section 1),
4.1.3 Grain size Temper (Section 87),
4.1.4 Dimensions and tolerances (Section 9),
4.1.5 Drawing number to which order applies (Section 9).
4.2 The following options are available but may not be included unless specified at the time of placing of the order when required:
4.2.1 Grain size analysis of the base (Section 14),
4.2.2 Source inspection (Section 16),
4.2.3 Certification,
4.2.4 Mill Test Report, and
4.2.5 If product is purchased for agencies of the U.S. Government (see the Supplementary Requirements section of this
specification for additional requirements, if specified).
5. Materials and Manufacture
5.1 Materials:
5.1.1 The material of manufacture shall be annealed plate, sheet, strip, or disks of wrought Copper Alloy UNS No. C26000
processed to produce even-topped cups.into the products prescribed herein.
5.2 Manufacture:
5.2.1 The product shall be manufactured by such blanking and cupping to meet the cup dimensions specified, and subsequently
annealed. The annealed cups shall be finish, plain pickled, washed, and dried.
6. Chemical Composition
6.1 The material shall conform to the chemical composition requirements in Table 1.
6.2 These composition limits do not preclude the presence of other elements. By agreement between the manufacturer and
purchaser,
...