ASTM B888/B888M-19
(Specification)Standard Specification for Copper Alloy Strip for Use in Manufacture of Electrical Connectors or Spring Contacts
Standard Specification for Copper Alloy Strip for Use in Manufacture of Electrical Connectors or Spring Contacts
ABSTRACT
This specification establishes the requirements for copper alloy strips for use in the manufacture of electrical connectors or spring contacts produced from one of the following Copper Alloy UNS Nos.: C14530, C15100, C15500, C17000, C17200, C17410, C17450, C17460, C17500, C17510, C19010, C19025, C19210, C19400, C19500, C19700, C23000, C26000, C40810, C40850, C40860, C42200, C42500, C42520, C42600, C50580, C50780, C51000, C51080, C51100, C51180, C51980, C52100, C52180, C52480, C63800, C65400, C68800, C70250, C70260, C70265, C75200, and C76200. The material for manufacture shall be a cast bar, slab, cake, billet, or other form of such composition as to be suitable for processing by either hot- or cold-working to produce the products prescribed in this specification. Products shall be finished by hot working, cold working, annealing, or heat treatment as may be necessary to meet mechanical property requirements, which include tensile strength, yield strength, and elongation. Tempers shall be available in the annealed, rolled, or mill hardened conditions. Products shall also adhere to tolerances as to dimension such as thickness, width, length, straightness, and mass.
SCOPE
1.1 This specification establishes the requirements for copper alloy strip for use in the manufacture of electrical connectors or spring contacts produced from one of the following Copper Alloy UNS Nos.:2 C14530, C15100, C15500, C17000, C17200, C17410, C17450, C17460, C17500, C17510, C19002, C19010, C19015, C19025, C19210, C19400, C19500, C19700, C23000, C26000, C40810, C40850, C40860, C42200, C42500, C42520, C42600, C50580, C50780, C51000, C51080, C51100, C51180, C51980, C52100, C52180, C52480, C63800, C64725, C65400, C68800, C70250, C70260, C70265, C70310, C70350, C75200, and C76200.
1.2 The requirements for the other copper alloys such as copper-nickel-tin spinodal, UNS C72650, C72700, and C72900, shall be as prescribed in the current edition of Specification B740.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.4 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.
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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:B888/B888M −19
Standard Specification for
Copper Alloy Strip for Use in Manufacture of Electrical
1
Connectors or Spring Contacts
This standard is issued under the fixed designation B888/B888M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
3
2.1 ASTM Standards:
1.1 This specification establishes the requirements for cop-
per alloy strip for use in the manufacture of electrical connec- B193Test Method for Resistivity of Electrical Conductor
Materials
tors or spring contacts produced from one of the following
2
CopperAlloy UNS Nos.: C14530, C15100, C15500, C17000, B248Specification for General Requirements for Wrought
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
C17200, C17410, C17450, C17460, C17500, C17510,
C19002, C19010, C19015, C19025, C19210, C19400, Bar
B248MSpecificationforGeneralRequirementsforWrought
C19500, C19700, C23000, C26000, C40810, C40850,
C40860, C42200, C42500, C42520, C42600, C50580, Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
Bar (Metric)
C50780,C51000,C51080,C51100,C51180,C51980,C52100,
C52180, C52480, C63800, C64725, C65400, C68800, B601ClassificationforTemperDesignationsforCopperand
Copper Alloys—Wrought and Cast
C70250, C70260, C70265, C70310, C70350, C75200, and
C76200. B740Specification for Copper-Nickel-Tin Spinodal Alloy
Strip
1.2 The requirements for the other copper alloys such as
B820Test Method for BendTest for Determining the Form-
copper-nickel-tin spinodal, UNS C72650, C72700, and
ability of Copper and Copper Alloy Strip
C72900, shall be as prescribed in the current edition of
B846Terminology for Copper and Copper Alloys
Specification B740.
E8/E8MTest Methods for Tension Testing of Metallic Ma-
1.3 The values stated in either SI units or inch-pound units
terials
are to be regarded separately as standard. The values stated in
E54Test Methods for ChemicalAnalysis of Special Brasses
4
eachsystemarenotnecessarilyexactequivalents;therefore,to
and Bronzes (Withdrawn 2002)
ensure conformance with the standard, each system shall be
E62Test Methods for Chemical Analysis of Copper and
4
used independently of the other, and values from the two
CopperAlloys(PhotometricMethods)(Withdrawn2010)
systems shall not be combined.
E75Test Methods for Chemical Analysis of Copper-Nickel
4
and Copper-Nickel-Zinc Alloys (Withdrawn 2010)
1.4 This international standard was developed in accor-
E478Test Methods for ChemicalAnalysis of CopperAlloys
dance with internationally recognized principles on standard-
E527Practice for Numbering Metals and Alloys in the
ization established in the Decision on Principles for the
Unified Numbering System (UNS)
Development of International Standards, Guides and Recom-
5
mendations issued by the World Trade Organization Technical 2.2 ISO Standards:
Barriers to Trade (TBT) Committee. ISO 4744Copper and Copper Alloys—Determination of
Chromium Content—Flame Atomic Absorption Spectro-
metric Method
1
This specification is under the jurisdiction of Committee B05 on Copper and
Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,
3
Sheet, and Strip. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2019. Published October 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1998. Last previous edition approved in 2017 as B888/B888M–17. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/B0888_B0888M–19. the ASTM website.
2 4
The UNS system for copper and copper alloys (see Practice E527) is a simple The last approved version of this historical standard is referenced on
expansion of the former standard designation system accomplished by the addition www.astm.org.
5
of a prefix “c” and a suffix “00.” The suffix can be used to accommodate Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
composition variations of the base alloy. 4th Floor, New York, NY 10036, http://www.ansi.org.
*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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B888/B888M−19
ISO 7602Copper and Copper Alloys—Determination of 6.2.3 Identification marking (Section 22);
Tellurium Content
6.2.4 Certification (S
...
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: B888/B888M − 17 B888/B888M − 19
Standard Specification for
Copper Alloy Strip for Use in Manufacture of Electrical
1
Connectors or Spring Contacts
This standard is issued under the fixed designation B888/B888M; 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 copper alloy strip for use in the manufacture of electrical connectors or
2
spring contacts produced from one of the following Copper Alloy UNS Nos.Nos.: : C14530, C14530, C15100, C15500, C17000,
C17200, C17410, C17450, C17460, C17500, C17510, C19002, C19010, C19015, C19025, C19210, C19400, C19500, C19700,
C23000, C26000, C40810, C40850, C40860, C42200, C42500, C42520, C42600, C50580, C50780, C51000, C51080, C51100,
C51180, C51980, C52100, C52180, C52480, C63800, C64725, C65400, C68800, C70250, C70260, C70265, C70310, C70350,
C75200, and C76200.
1.2 The requirements for the other copper alloys such as copper-nickel-tin spinodal, UNS C72650, C72700, and C72900, shall
be as prescribed in the current edition of Specification B740.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system mayare not benecessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other. Combiningother, and values from the two systems may result in non-conformance with the
standard.shall not be combined.
1.4 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
3
2.1 ASTM Standards:
B193 Test Method for Resistivity of Electrical Conductor Materials
B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
B248M Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
(Metric)
B601 Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
B740 Specification for Copper-Nickel-Tin Spinodal Alloy Strip
B820 Test Method for Bend Test for Determining the Formability of Copper and Copper Alloy Strip
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
4
E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)
4
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
4
E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys (Withdrawn 2010)
E478 Test Methods for Chemical Analysis of Copper Alloys
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
1
This specification is under the jurisdiction of 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, 2017Oct. 1, 2019. Published April 2017October 2019. Originally approved in 1998. Last previous edition approved in 20132017 as
B888/B888M-13.–17. DOI: 10.1520/B0888_B0888M-17.10.1520/B0888_B0888M–19.
2
The UNS system for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation system accomplished by the addition of a
prefix “c” and a suffix “00.” The suffix can be used to accommodate composition variations of the base alloy.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
The last approved version of this historical standard is referenced on www.astm.org.
*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 ----------------------
B888/B888M − 19
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2.2 ISO Standards:
ISO 4744 Copper and Copper Alloys—Determination of Chromium
...
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