ASTM B888-98

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 888 – 98
Standard Specification for
Copper Alloy Strip for Use in the 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 601 Practice for Temper Designations for Copper and
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Copper Alloys—Wrought and Cast
1.1 This specification covers the requirements for copper
B 768 Specification for Copper-Cobalt-Beryllium Alloy
alloy strip for use in the manufacture of electrical connectors or
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Strip and Sheet
spring contacts produced from one of the following Copper
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B 820 Test Method for Bend Test for Formability of Copper
Alloy UNS Nos. : C14530, C15100, C15500, C19400,
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Alloy Spring Material
C19500, C19700, C23000, C26000, C42200, C42500,
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B 846 Terminology for Copper and Copper Alloys
C51000, C51100, C52100, C63800, C65400, C68800, C70250,
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E 8 Test Methods for Tension Testing of Metallic Materials
C70260, C75200, and C76200.
E 8M Test Methods for Tension Testing of Metallic Mate-
1.2 The requirements for the other copper alloys such as
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rials [Metric]
beryllium copper UNS C17000, C17200, C17400, C17410,
E 54 Test Methods for Chemical Analysis of Special
C17500, and C17510 shall be as prescribed in the current
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Brasses and Bronzes
edition of Standards B 194, B 768 and B 534.
E 62 Test Methods for Chemical Analysis of Copper and
1.3 The values stated in either inch-pound units or SI units
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Copper Alloys (Photometric Method)
are to be regarded separately as standard. The values stated in
E 75 Test Methods for Chemical Analysis of Copper-Nickel
each system may not be exact equivalents; therefore, each
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and Copper-Nickel-Zinc Alloys
system shall be used independently of the other. Combining
E 478 Test Methods for Chemical Analysis of Copper
values from the two systems may result in noncompliance with
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Alloys
this specification.
E 527 Test Practice for Numbering Metals and Alloys
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2. Referenced Documents (UNS)
2.2 ISO Standards:
2.1 ASTM Standards:
ISO 4744 Copper and Copper Alloys—Determination of
B 193 Test Method for Resistivity of Electrical Conductor
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Chromium Content - Flame Atomic Absorption Spectro-
Material
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metric Method
B 194 Specification for Copper-Beryllium Alloy Plate,
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ISO 7602 Copper and Copper Alloys—Determination of
Sheet, Strip, and Rolled Bar
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Tellurium Content
B 248 Specification for General Requirements for Wrought
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
3. Terminology
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Bar
3.1 Definitions—For definition of terms used in this speci-
B 248M Specification for General Requirements for
fication, refer to Terminology B 846.
Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and
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Rolled Bar [Metric]
4. General Requirements
B 534 Specification for Copper-Cobalt-Beryllium Alloy and
4.1 For product furnished under this specification in English
Copper-Nickel-Beryllium Alloy Plate, Sheet, Strip, and
4 units, the following sections of Specification B 248 must
Rolled Bar
constitute a part of this specification. For product furnished
under this specification in the SI units, the following sections
of Specification B 248M must constitute a part of this specifi-
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This standard is under the jurisdiction of Committee B-5 on Copper and is the
cation.
direct responsibility of Subcommittee B05.01 on Plate, Sheet, and Strip.
Current edition approved May 10, 1998. Published September 1998.
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The UNS system for copper and copper alloys (see Practice E 527) is a simple
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expansion of the former standard designation system accomplished by the addition Annual Book of ASTM Standards, Vol 03.01.
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of a prefix “c” and a suffix “00.” The suffix can be used to accommodate Annual Book of ASTM Standards, Vol 03.05.
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composition variations of the base alloy. Annual Book of ASTM Standards, Vol 01.01.
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Annual Book of ASTM Standards, Vol 02.03. Available from American National Standards Institute, 11 W. 42nd St., New
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Annual Book of ASTM Standards, Vol 02.01. York, NY 10036-8002.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
B888–98
4.1.1 Terminology, 6.2.1 Type of edge: slit, sheared, sawed, square corners,
4.1.2 Materials and Manufacture, rounded corners, rounded edges, or full-rounded edges (Sec-
4.1.3 Dimensions, Weights, and Permissible Variations, tion 11),
4.
...