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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.
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/A434M 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 Guide 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
ICS Number Code 77.140.60 (Steel bars and rods)
UNSPSC Code 30263600(Carbon steel bars); 30263700(Steel alloy bars)
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ASTM A29 / A29M-04e1, Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for, ASTM International, West Conshohocken, PA, 2004, www.astm.orgBack to Top