ASTM A684/A684M-10a

    Standard Specification for Steel, Strip, High-Carbon, Cold-Rolled


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    1. Scope

    1.1 This specification covers cold-rolled, high-carbon strip in coils or cut lengths. Strip is classified as product that is 0.3000 in. [7.6 mm] or less in thickness and over ½ to 2315/16 in. [12.5 to 600 mm] in width, inclusive. Strip tolerance products may be available in widths wider than 2315/16 in. (600 mm) by agreement between purchaser and supplier; however, such products are technically classified as cold-rolled sheet. The maximum of the specified carbon range is over 0.25 to 1.35 %, inclusive. It is furnished in the following types as specified:

    1.1.1 Soft spheroidized annealed high-carbon steel is intended for applications requiring maximum cold forming. It is normally produced to give the lowest maximum Rockwell hardness for each grade.

    1.1.2 Soft annealed high-carbon steel is intended for applications requiring moderate cold forming. It is produced to a maximum Rockwell hardness.

    1.1.3 Intermediate hardness high-carbon steel is intended for applications where cold forming is slight or a stiff, springy product is needed, or both. It is produced to specified Rockwell hardness ranges, the maximum being higher than obtained for the annealed type.

    1.1.4 Full hard high-carbon steel is intended for flat applications. It is produced to minimum Rockwell hardness requirements, which vary with grade, microstructure and gauge. Full hard can be produced with either a pearlitic or spheroidized microstructure or a mixture of both. The minimum hardness should be established between the consumer and the producer.

    1.2 This specification is applicable for orders in either inch-pound units or SI units.

    1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be 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.


    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

    A109/A109M Specification for Steel, Strip, Carbon (0.25 Maximum Percent), Cold-Rolled

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    A568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for

    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

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

    E3 Guide for Preparation of Metallographic Specimens

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

    E112 Test Methods for Determining Average Grain Size

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    Federal Standards

    Fed.Std.No.183 Continuous Identification Marking of Iron and Steel Products

    Military Standard

    MIL-STD-129 Marking for Shipping and Storage

    SAE Standard

    J1086 Recommended Practice for Numbering Metals and Alloys (UNS) Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.


    ICS Code

    ICS Number Code 77.140.50 (Flat steel products and semi-products)

    UNSPSC Code

    UNSPSC Code 30264400(Carbon steel ingots strips billets and coil); 30264100(Steel alloy sheets)


    Referencing This Standard

    DOI: 10.1520/A0684_A0684M-10A

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A684 / A684M-10a, Standard Specification for Steel, Strip, High-Carbon, Cold-Rolled, ASTM International, West Conshohocken, PA, 2010, www.astm.org

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