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    ASTM A3 - 01(2019)

    Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-Treated)

    Active Standard ASTM A3 | Developed by Subcommittee: A01.01

    Book of Standards Volume: 01.04

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    This specification covers steel joint bars of low-carbon, medium-carbon, and high-carbon grades (Grades 1, 2, and 3) for railway applications. Steel shall be made through basic-oxygen or electric-furnace processes and cast through continuous process or in ingots. An analysis of each heat or cast shall be made to determine the percentage compositions of carbon, manganese, phosphorus, and sulfur. Tension test shall also be made to conform to specified tensile strength and elongation values. Guidelines on the dimensions and physical variations of joint bars are given. Inspection, rejection, rehearing, certification, and product marking procedures are cited.

    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 steel joint bars for connecting steel rails in mine, industrial, and standard railroad track.

    1.2 Three grades of joint bars are defined for applications where non-heat treated bars are suitable:

    1.2.1 Grade 1, low-carbon, primarily for industrial and mine use.

    1.2.2 Grade 2, medium-carbon, primarily for industrial and mine use.

    1.2.3 Grade 3, high-carbon, for general use in standard railroad track. They may be used in the production of insulated track joints.

    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

    ICS Code

    ICS Number Code 77.140.70 (Steel profiles)

    UNSPSC Code

    UNSPSC Code 25121700(Railroad support equipment and systems)

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

    DOI: 10.1520/A0003-01R19

    Citation Format

    ASTM A3-01(2019), Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon (Non-Heat-Treated), ASTM International, West Conshohocken, PA, 2019, www.astm.org

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