ASTM D2969-02

    Standard Test Methods for Steel Tire Cords


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    1. Scope

    1.1 These test methods cover the testing of cords made from steel that are specifically designed for use in the reinforcement of pneumatic tires. By agreement, these test methods may be used to test similar cords or filaments used for reinforcing other rubber products. The steel cords may be wound on spools or beams. The steel cords may also be woven into fabric, in which case they must be removed from the fabric prior to testing.

    Note 1—For other methods of testing tire cords and tire cord fabrics, refer to Methods D885, Test Methods D1871, Specifications D122, and Test Methods D2692 and D2970. For tolerances on tire cords and tire cord fabrics, refer to Specifications D122 and Methods D885.

    1.2 These test methods include test procedures only; they do not establish specifications or tolerances.

    1.3 This test method includes the following sections:

    SubjectSection
    Adhesion of Steel Cords and Filaments to Elastomers16
    Brass Coating Composition and Mass14, 15
    Breaking Force (Strength)10
    Construction12
    Data Form for Reporting Test ResultsAppendix X1
    Elongation at Break10
    Elongation Between Defined Forces (EDF)11
    Flare8
    Lay12
    Linear Density9
    Visual Appearance8
    Nomenclature SystemAnnex A1
    Residual Torsions8
    Straightness8
    Thickness and Out-of-Roundness13

    1.4 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. See 14.3 and Note 11.

    1.4 This standard is written in SI units. No other units of measurement are included in this standard.


    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

    D76 Specification for Tensile Testing Machines for Textiles

    D122 Tolerances for Tire Fabrics Other Than Tire Cord Fabrics

    D123 Terminology Relating to Textiles

    D885 Test Methods for Tire Cords, Tire Cord Fabrics, and Industrial Filament Yarns Made from Manufactured Organic-Base Fibers

    D1871 Test Method for Adhesion Between Tire Bead Wire and Rubber

    D2229 Test Method for Adhesion Between Steel Tire Cords and Rubber

    D2692 Test Method for Air Wicking of Tire Fabrics, Tire Cord Fabrics, Tire Cord, and Yarns

    D2904 Practice for Interlaboratory Testing of a Textile Test Method that Produces Normally Distributed Data

    D2970/D2970M Test Methods for Testing Tire Cords, Tire Cord Fabrics, and Industrial Yarns Made From Glass Filaments

    D4393 Test Method for Strap Peel Adhesion of Reinforcing Cords or Fabrics to Rubber Compounds

    D6477 Terminology Relating to Tire Cord, Bead Wire, Hose Reinforcing Wire, and Fabrics

    E663 Practice for Flame Atomic Absorption Analysis


    ICS Code

    ICS Number Code 77.140.65 (Steel wire, wir ropes and link chains); 83.160.01 (Tyres in general)

    UNSPSC Code

    UNSPSC Code 25172507(Tire cord)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D2969-02

    Citation Format

    ASTM D2969-02, Standard Test Methods for Steel Tire Cords, ASTM International, West Conshohocken, PA, 2002, www.astm.org

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