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    ASTM A407 - 18

    Standard Specification for Steel Wire, Cold-Drawn, for Coiled-Type Springs

    Active Standard ASTM A407 | Developed by Subcommittee: A01.03

    Book of Standards Volume: 01.03

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    1. Scope

    1.1 This specification covers round, cold-drawn, steel spring wire having properties and quality intended for the manufacture of the following types of upholstery springs:

    1.1.1 Type A—Coiled (Marshall pack),

    1.1.2 Type B—Coiled and knotted,

    1.1.3 Type C—Coiled and knotted (offset style),

    1.1.4 Type D—Coiled and hooked (single and cross helicals),

    1.1.5 Type E—Coiled and hooked (short tension—regular tensile strength),

    1.1.6 Type F—Coiled and hooked (short tension—high tensile strength),

    1.1.7 Type G—Regular lacing,

    1.1.8 Type H—Automatic lacing,

    1.1.9 Type I—Zig-zag (U-formed),

    1.1.10 Type J—Square-formed, and

    1.1.11 Type K—Sinuous for furniture spring units.

    1.2 These types of upholstery springs are used in the manufacture of automotive seat springs, furniture springs, bed spring units, mattresses, furniture cushions, and automobile seats. This wire is not intended for the manufacture of mechanical springs.

    1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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

    ASTM Standards

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    A700 Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment

    A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    AIAG Standard

    AIAG B-10 Trading Partner Labels Implementation Guidelines Available from Automotive Industry Action Group (AIAG), 26200 Lahser Rd., Suite 200, Southfield, MI 48033-7100, www.aiag.org.

    ICS Code

    ICS Number Code 77.140.25 (Spring steels)

    UNSPSC Code

    UNSPSC Code 31152200(Non electric iron and steel wire)

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

    DOI: 10.1520/A0407-18

    Citation Format

    ASTM A407-18, Standard Specification for Steel Wire, Cold-Drawn, for Coiled-Type Springs, ASTM International, West Conshohocken, PA, 2018, www.astm.org

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