ASTM B740-09

    Standard Specification for Copper-Nickel-Tin Spinodal Alloy Strip


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    1. Scope

    1.1 This specification establishes requirements for copper-nickel-tin alloy strip in the following alloys:

    Copper Alloy UNS No.Nominal Composition Weight %
    CopperNickelTin
    C7270085 96
    C7290077158
    C7265087.5 7.55

    1.2 UnitsThe values stated in inch-pound units and the values stated in SI units in Table 5 are to be regarded as standard, except for grain size which is stated in metric units only. The values given in parentheses are mathematical conversions to SI units and are provided for information only and are not considered standard.

    1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification.

    1.3.1 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar

    B598 Practice for Determining Offset Yield Strength in Tension for Copper Alloys

    B601 Classification for Temper Designations for Copper and Copper Alloys--Wrought and Cast

    B820 Test Method for Bend Test for Determining the Formability of Copper and Copper Alloy Strip

    B846 Terminology for Copper and Copper Alloys

    E3 Guide for Preparation of Metallographic Specimens

    E8/E8M Test Methods for Tension Testing of Metallic Materials

    E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys

    E290 Test Methods for Bend Testing of Material for Ductility

    E478 Test Methods for Chemical Analysis of Copper Alloys


    ICS Code

    ICS Number Code 77.150.30 (Copper products)

    UNSPSC Code

    UNSPSC Code 30262400(Copper ingots strip billets and coil)


    Referencing This Standard
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    DOI: 10.1520/B0740-09

    Citation Format

    ASTM B740-09, Standard Specification for Copper-Nickel-Tin Spinodal Alloy Strip, ASTM International, West Conshohocken, PA, 2009, www.astm.org

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