ASTM B888-04

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Designation: B 888 – 04
Standard Specification for
Copper Alloy Strip for Use in Manufacture of Electrical
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Connectors or Spring Contacts
This standard is issued under the fixed designation B 888; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* B 194 Specification for Copper-Beryllium Alloy Plate,
Sheet, Strip, and Rolled Bar
1.1 This specification establishes the requirements for cop-
B 248 Specification for General Requirements for Wrought
per alloy strip for use in the manufacture of electrical connec-
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
tors or spring contacts produced from one of the following
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Bar
CopperAlloy UNS Nos. : C14530, C15100, C15500, C19010,
B 248M Specification for General Requirements for
C19025, C19210, C19400, C19500, C19700, C23000,
Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and
C26000, C40810, C40850, C40860, C42200, C42500,
Rolled Bar [Metric]
C42520,C42600,C50580,C50780,C51000,C51080,C51100,
B 534 SpecificationforCopper-Cobalt-BerylliumAlloyand
C51180,C51980,C52100,C52180,C52480,C63800,C65400,
Copper-Nickel-Beryllium Alloy Plate, Sheet, Strip, and
C68800, C70250, C70260, C70265, C75200, and C76200.
Rolled Bar
1.2 The requirements for the other copper alloys such as
B 601 Classification for Temper Designations for Copper
beryllium copper UNS C17000, C17200, C17400, C17410,
and Copper Alloys—Wrought and Cast
C17500, and C17510 shall be as prescribed in the current
B 740 Specification for Copper-Nickel-Tin Spinodal Alloy
edition of Specifications B 194, B 768, and B 534, and copper-
Strip
nickel-tin spinodal, UNS C72650, C72700, and C72900 shall
B 768 Specification for Copper-Cobalt-Beryllium Alloy
be as prescribed in the current edition of Specification B 740.
Strip and Sheet
1.3 The values stated in either inch-pound units or SI units
B 820 Test Method for BendTest for Formability of Copper
are to be regarded separately as standard. The values stated in
Alloy Spring Material
each system may not be exact equivalents; therefore, each
B 846 Terminology for Copper and Copper Alloys
system shall be used independently of the other. Combining
E 8 Test Methods for Tension Testing of Metallic Materials
values from the two systems may result in noncompliance with
E 8M Test Methods for Tension Testing of Metallic Mate-
this specification.
rials [Metric]
2. Referenced Documents
E 54 Test Methods for Chemical Analysis of Special
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3
Brasses and Bronzes
2.1 ASTM Standards:
E 62 Test Methods for Chemical Analysis of Copper and
B 193 Test Method for Resistivity of Electrical Conductor
Copper Alloys (Photometric Method)
Material
E 75 Test Methods for ChemicalAnalysis of Copper-Nickel
and Copper-Nickel-Zinc Alloys
E 478 Test Methods for Chemical Analysis of Copper
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This specification is under the jurisdiction of Committee B05 on Copper and
Alloys
Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,
E 527 Practice for Numbering Metals and Alloys (UNS)
Sheet, and Strip.
2.2 ISO Standards:
Current edition approved May 1, 2004. Published May 2004. Originally
approved in 1998. Last previous edition approved in 2003 as B 888 – 03. ISO 4744 Copper and Copper Alloys—Determination of
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The UNS system for copper and copper alloys (see Practice E 527) is a simple
Chromium Content - Flame Atomic Absorption Spectro-
expansion of the former standard designation system accomplished by the addition
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metric Method
of a prefix “c” and a suffix “00.” The suffix can be used to accommodate
composition variations of the base alloy.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Withdrawn.
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Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
*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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B888–04
ISO 7602 Copper and Copper Alloys—Determination of 6.2.2 Width and straightness tolerances, slit-metal toler-
5
Tellurium Content ances, square-sheared metal tolerances, sawed metal toler-
ances, straightened or edge-rolled metal tolerances (Section
3. Terminology 11),
6.2.3 Identification marking (Section 22),
3.1 Definitions—For definition of terms used in this speci-
6.2.4 Certification (Section 20),
fication, refer to Termin
...