ASTM A764 - 07(2012)

    Standard Specification for Metallic Coated Carbon Steel Wire, Coated at Size and Drawn to Size for Mechanical Springs

    Active Standard ASTM A764 | Developed by Subcommittee: A05.12

    Book of Standards Volume: 01.06


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    Abstract

    This specification covers round, metallic coated, hard-drawn, carbon steel spring wire having properties and quality for the manufacture of mechanical springs and wire forms that are not subject to high stress or require high fatigue properties. The steel specimens shall be either ingot cast or strand cast and shall be cold drawn. Prior to cold drawing, the specimens shall be furnished into three types of metallic coating: aluminum coating, zinc coating and zinc-aluminum-mischmetal alloy coating categorized as Type A, Type B, and Type C, respectively. The steel shall undergo heat analysis and product analysis wherein the materials shall conform to the requirements of chemical compositions of carbon, manganese, phosphorus, sulfur, and silicon. Tension test, wrap test and metallic coatings test shall be performed wherein the specimens shall conform to the values of tensile strength, Mandrel diameters and minimum weight of aluminum, zinc or zinc-aluminum-mischmetal alloy per unit area of uncoated wire surface.

    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 two finishes of round, metallic coated, hard-drawn, carbon steel spring wire having properties and quality for the manufacture of mechanical springs and wire forms that are not subject to high stress or require high fatigue properties.

    1.2 The values stated in inch-pound units are to be regarded as the standard. The values stated in SI units are for information purposes only.


    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

    A90/A90M Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    A428/A428M Test Method for Weight [Mass] of Coating on Aluminum-Coated Iron or Steel Articles

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

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

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

    B6 Specification for Zinc

    B750 Specification for GALFAN (Zinc-5 % Aluminum-Mischmetal) Alloy in Ingot Form for Hot-Dip Coatings

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


    ICS Code

    ICS Number Code 77.140.25 (Spring steels)

    UNSPSC Code

    UNSPSC Code 31152206(Coated steel wire)


    DOI: 10.1520/A0764-07R12

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