ASTM A679 / A679M - 17

    Standard Specification for Steel Wire, High Tensile Strength, Cold Drawn

    Active Standard ASTM A679 / A679M | Developed by Subcommittee: A01.03

    Book of Standards Volume: 01.03


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    Abstract

    This specification covers round, uncoated, high tensile strength, cold-drawn steel spring wires having properties and quality suitable for the manufacture of mechanical springs and wire forms subject to high static stresses or infrequent dynamic load, or both. The steel shall be made by any commercially accepted steel making process. The steel shall either be ingot cast or continuous strand cast. The finished wire shall be free from detrimental pipe and undue segregation. The wire shall be cold drawn to produce the desired tensile strength. The wire finish shall be suitable for forming or coiling. It is not intended that this material be furnished with a metallic coating. Heat and product analysis shall be conducted wherein the material shall conform to the required chemical composition values of carbon, manganese, phosphorus, sulfur, and silicon. The material shall undergo tensile and wrap tests. The steel shall have fine pearlite microstructure and the wire surface shall not exhibit imperfections.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers round, uncoated, high tensile strength, cold drawn steel spring wire, having properties and quality suitable for the manufacture of mechanical springs and wire forms subject to high static stresses or infrequent dynamic load, or both.

    1.2 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 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.

    1.3 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

    A510/A510M Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel, and Alloy Steel

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

    A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

    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

    Federal Standard

    Fed. Std. No. 123 Marking for Shipment (Civil Agencies)

    ANSI Standard

    B32.100


    ICS Code

    ICS Number Code 77.140.65 (Steel wire, wir ropes and link chains)

    UNSPSC Code

    UNSPSC Code 31161900(Springs)


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

    DOI: 10.1520/A0679_A0679M-17

    Citation Format

    ASTM A679 / A679M-17, Standard Specification for Steel Wire, High Tensile Strength, Cold Drawn, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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