ASTM A29/A29M-05

    Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for


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    1. Scope

    1.1 This specification covers a group of common requirements which, unless otherwise specified in the purchase order or in an individual specification, shall apply to carbon and alloy steel bars under each of the following ASTM specifications (or under any other ASTM specification which invokes this specification or portions thereof):

    1.2 In case of any conflict in requirements, the requirements of the purchase order, the individual material specification, and this general specification shall prevail in the sequence named.

    1.3 The values stated in inch-pound units or SI units are to be regarded as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

    1.4 For purposes of determining conformance to this specification and the various material specifications referenced in , dimensional values shall be rounded to the nearest unit in the right-hand place of figures used in expressing the limiting values in accordance with the rounding method of Practice E 29.

    Note 1

    Specification A 29 previously listed dimensional tolerances for cold-finished bars; these are now found in Specification A 108.


    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

    A108 Specification for Steel Bar, Carbon and Alloy, Cold-Finished

    A304 Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements

    A311/A311M Specification for Cold-Drawn, Stress-Relieved Carbon Steel Bars Subject to Mechanical Property Requirements

    A321 Specification for Steel Bars, Carbon, Quenched and Tempered

    A322 Specification for Steel Bars, Alloy, Standard Grades

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    A434 Specification for Steel Bars, Alloy, Hot-Wrought or Cold-Finished, Quenched and Tempered

    A499 Specification for Steel Bars and Shapes, Carbon Rolled from T Rails

    A575 Specification for Steel Bars, Carbon, Merchant Quality, M-Grades

    A576 Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality

    A663/A663M Specification for Steel Bars, Carbon, Merchant Quality, Mechanical Properties

    A675/A675M Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical Properties

    A689 Specification for Carbon and Alloy Steel Bars for Springs

    A696 Specification for Steel Bars, Carbon, Hot-Wrought or Cold-Finished, Special Quality, for Pressure Piping Components

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

    A739 Specification for Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both

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

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

    E112 Test Methods for Determining Average Grain Size

    Other Standards

    AIAGB-1 Bar Code Symbology Standard for 3-of-9 Bar Codes Available from Automotive Industry Action Group, North Park Plaza, Ste. 830, 17117 W. Nine Mile Rd., Southfield, MI 48075.

    AIAGB-5 02.00 Primary Metals Tag Application Standard

    Federal Standards

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

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

    Military Standard

    MIL-STD-163 Steel Mill Products--Preparation for Shipment and Storage


    ICS Code

    ICS Number Code 77.140.60 (Steel bars and rods)

    UNSPSC Code

    UNSPSC Code 30263600(Carbon steel bars); 30263700(Steel alloy bars)


    Referencing This Standard

    DOI: 10.1520/A0029_A0029M-05

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A29 / A29M-05, Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for, ASTM International, West Conshohocken, PA, 2005, www.astm.org

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