ASTM B131-07
(Specification)Standard Specification for Copper Alloy Bullet Jacket Cups
Standard Specification for Copper Alloy Bullet Jacket Cups
ABSTRACT
This specification covers bullet jacket preform cups made from UNS C22000 wrought copper alloy used for processing Types I-IV and Classes I-II bullet jackets. This standard contains information on chemical composition, grain size and testing requirements for the preform cups.
SCOPE
1.1 This specification establishes the requirements for bullet jacket preform cups produced of Copper Alloy UNS No. C22000 for processing into bullet jackets of the following types and classes:
1.1.1 Type I—Caliber 0.30.
1.1.2 Type II—Caliber 0.45.
1.1.3 Type III—Caliber 0.50.
1.1.4 Type IV—As specified in the contract or order.
1.1.5 Class I—Not annealed.
1.1.6 Class II—Annealed.
1.2 The 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.
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Designation: B131 – 07
Standard Specification for
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Copper Alloy Bullet Jacket Cups
This standard is issued under the fixed designation B131; 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 bullet 4.1 Orders for product under this specification should in-
jacket preform cups produced of Copper Alloy UNS No. clude the following information:
C22000 for processing into bullet jackets of the following 4.1.1 ASTM designation and year of issue.
types and classes: 4.1.2 Type and class (Section 1),
1.1.1 Type I—Caliber 0.30. 4.1.3 Grain size (Section 7),
1.1.2 Type II—Caliber 0.45. 4.1.4 Dimensions and tolerances (see 8.1),
1.1.3 Type III—Caliber 0.50. 4.1.5 Drawing number to which order applies (see 8.1), and
1.1.4 Type IV—As specified in the contract or order. 4.1.6 Work test requirements if required (Section 11).
1.1.5 Class I—Not annealed. 4.1.7 Inaddition,whenmaterialispurchasedforagenciesof
1.1.6 Class II—Annealed. the U.S. Government (see Supplementary Requirements sec-
1.2 The values stated in inch-pound units are the standard, tion).
except for grain size, which is given in SI units. Values in
5. Material and Manufacture
parentheses are for information only.
5.1 Material:
2. Referenced Documents
5.1.1 The material of manufacture shall be annealed plate,
2
2.1 ASTM Standards: sheet, strip, or disks of wrought Alloy UNS No. C22000
B601 Classification for Temper Designations for Copper processed to produce even-topped cups.
and Copper Alloys—Wrought and Cast 5.2 Manufacture:
B846 Terminology for Copper and Copper Alloys 5.2.1 The material shall be blanked and cupped to meet the
E3 Guide for Preparation of Metallographic Specimens cup dimensions specified, and subsequently annealed, if re-
E29 Practice for Using Significant Digits in Test Data to quired.The annealed cups shall be cleaned to provide a surface
Determine Conformance with Specifications suitable for subsequent redrawing into bullet jackets.
E112 Test Methods for Determining Average Grain Size
6. Chemical Composition
E255 Practice for Sampling Copper and Copper Alloys for
the Determination of Chemical Composition 6.1 The product shall conform to the chemical requirements
prescribed in Table 1.
E478 TestMethodsforChemicalAnalysisofCopperAlloys
6.2 Composition limits may be established and analysis
3. Terminology
required for unnamed elements by agreement between manu-
3.1 For definitions of terms related to copper and copper facturer and purchaser.
alloys, see Terminology B846. 6.3 Either copper or zinc may be taken as the difference
3.2 Definitions of Terms Specific to This Standard: between the sum of all elements analyzed and 100 %. Copper,
3.2.1 cup (cupping), n—a shallow cylindrical shell closed at when determined by difference, must conform to the require-
one end, normally intended for further fabrication, formed ments of Table 1. When all elements in Table 1 are analyzed,
from a blank. the sum shall be 99.8 % min.
7. Grain Size of Annealed Tempers
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ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate, 7.1 Unless there is a prior agreement between the purchaser
Sheet, and Strip.
and supplier the grain size of class II cups shall be produced to
Current edition approved Oct. 1, 2007. Published October 2007. Originally
have average grain size corresponding to the limits of the
approved in 1940. Last previous edition approved in 2002 as B131 – 02. DOI:
OS025 or OS040 tempers as specified in Table 2.
10.1520/B0131-07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.1.1 Grain size ranges other than those specified in Table 2
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
are to be established by agreement between manufacturer and
Standards volume information, refer to the standard’s Document Summary page on
purchaser.
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.
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B131 – 07
TABLE 1 Chemical Requirements
11.2 Work Test—If required by the purchase order or con-
Element Composition, % tract, one of the following work tests may be performed by the
purchaser before approval of a lot for shipment:
Copper 89.0–91.0
Lead, max 0.05
11.2.1 Five hundred cups or more shall be subjected to a
Iron, max 0.05
working test by proces
...
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