ASTM B888-08

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. : 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.
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 B 740.
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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

General Information

• Status: Historical
• Publication Date: 31-Mar-2008
• ICS: 29.050 - Superconductivity and conducting materials
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.01 - Plate, Sheet, and Strip

Relations

• Replaces: ASTM B888-06 - Standard Specification for Copper Alloy Strip for Use in Manufacture of Electrical Connectors or Spring Contacts
• Effective Date: 01-Apr-2008
• Replaced By: ASTM B888-09 - Standard Specification for Copper Alloy Strip for Use in Manufacture of Electrical Connectors or Spring Contacts
• Effective Date: 01-Oct-2009

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B888 – 08
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; 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* B248 Specification for General Requirements for Wrought
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
1.1 This specification establishes the requirements for cop-
Bar
per alloy strip for use in the manufacture of electrical connec-
B248M Specification for General Requirements for
tors or spring contacts produced from one of the following
2
Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and
CopperAlloy UNS Nos. : C14530, C15100, C15500, C17000,
Rolled Bar (Metric)
C17200, C17410, C17450, C17460, C17500, C17510,
B601 Classification for Temper Designations for Copper
C19010, C19025, C19210, C19400, C19500, C19700,
and Copper Alloys—Wrought and Cast
C23000, C26000, C40810, C40850, C40860, C42200,
B740 Specification for Copper-Nickel-Tin Spinodal Alloy
C42500, C42520, C42600, C50580, C50780, C51000,
Strip
C51080,C51100,C51180,C51980,C52100,C52180,C52480,
B820 Test Method for Bend Test for Determining the
C63800, C65400, C68800, C70250, C70260, C70265,
Formability of Copper and Copper Alloy Strip
C75200, and C76200.
B846 Terminology for Copper and Copper Alloys
1.2 The requirements for the other copper alloys such as
E8 Test Methods for Tension Testing of Metallic Materials
copper-nickel-tin spinodal, UNS C72650, C72700, and
E8M Test Methods for Tension Testing of Metallic Materi-
C72900, shall be as prescribed in the current edition of
4
als [Metric]
Specification B740.
E54 TestMethodsforChemicalAnalysisofSpecialBrasses
1.3 The values stated in either SI units or inch-pound units
4
and Bronzes
are to be regarded separately as standard. The values stated in
E62 Test Methods for Chemical Analysis of Copper and
each system may not be exact equivalents; therefore, each
Copper Alloys (Photometric Methods)
system shall be used independently of the other. Combining
E75 Test Methods for ChemicalAnalysis of Copper-Nickel
values from the two systems may result in non-conformance
and Copper-Nickel-Zinc Alloys
with the standard.
E478 TestMethodsforChemicalAnalysisofCopperAlloys
2. Referenced Documents
E527 Practice for Numbering Metals and Alloys in the
3
Unified Numbering System (UNS)
2.1 ASTM Standards:
2.2 ISO Standards:
B193 Test Method for Resistivity of Electrical Conductor
ISO 4744 Copper and Copper Alloys—Determination of
Materials
Chromium Content—Flame Atomic Absorption Spectro-
5
metric Method
1
This specification is under the jurisdiction of Committee B05 on Copper and
ISO 7602 Copper and Copper Alloys—Determination of
Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,
5
Tellurium Content
Sheet, and Strip.
Current edition approved April 1, 2008. Published May 2008. Originally
3. Terminology
approved in 1998. Last previous edition approved in 2006 as B888 – 06. DOI:
10.1520/B0888-08.
3.1 Definitions—For definition of terms used in this speci-
2
The UNS system for copper and copper alloys (see Practice E527) is a simple
fication, refer to Terminology B846.
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 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Withdrawn. The last approved version of this historical standard is referenced
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM on www.astm.org.
5
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, 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 – 08
4. General Requirements 6.2.4 Certification (Section 20),
6.2.5 Mill test report (Section 21), and
4.1 ForproductfurnishedunderthisspecificationinEnglish
6.2.6 How packaged: coil wound in traverse or pancake
units, the following sections of Specification B248 must
style (Section 22).
constitute a part of this specification. For product furnished
6.2.6.1 Number of strip lengths per coil,
under this specification in the SI units, the following sections
6.2.6.2 Size and weig
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:B888–06 Designation: B 888 – 08
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 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*
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. : 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.
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 B 740.
1.3 The values stated in either inch-poundSI units or SIinch-pound units are to be regarded separately as standard. The values
stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining
values from the two systems may result in noncompliancenon-conformance with this specification. the standard.
2. Referenced Documents
3
2.1 ASTM Standards:
B 193 Test Method for Resistivity of Electrical Conductor Materials
B 248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
B 248M Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
(Metric)
B 601 Classification for Temper Designations for Copper and Copper AlloysWrought and Cast
B 740 Specification for Copper-Nickel-Tin Spinodal Alloy Strip
B 820 Test Method for Bend Test for Determining the Formability of Copper and Copper Alloy Strip
B 846 Terminology for Copper and Copper Alloys
E 8 Test Methods for Tension Testing of Metallic Materials
E 8M Test Methods for Tension Testing of Metallic Materials [Metric]
E 54 Test Methods for Chemical Analysis of Special Brasses and Bronzes
E 62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E 75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys
E 478 Test Methods for Chemical Analysis of Copper Alloys
E 527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
2.2 ISO Standards:
ISO 4744 Copper and Copper Alloys—Determination of Chromium Content—Flame Atomic Absorption Spectrometric
4
Method
4
ISO 7602 Copper and Copper Alloys—Determination of Tellurium Content
3. Terminology
3.1 Definitions— For definition of terms used in this specification, refer to Terminology B 846.
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 March 15, 2006. Published March 2006. Originally approved in 1998. Last previous edition approved in 2004 as B888–04.
Current edition approved April 1, 2008. Published May 2008. Originally approved in 1998. Last previous edition approved in 2006 as B 888 – 06.
2
The UNS system for copper and copper alloys (see Practice E 527) 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 referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 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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B888–08
4. General Requirements
4.1 For product furnished under this specification in English
...