Standard Specification for Steel Bars, Carbon and Alloy ...

1 Designation: A 29/A 29M 05 Standard Specification forSteel bars , Carbon and Alloy , Hot-Wrought, GeneralRequirements for1 This Standard is issued under the fixed designation A 29/A 29M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last superscript epsilon (e) indicates an editorial change since the last revision or Standard has been approved for use by agencies of the Department of Scope* This specification2covers a group of common require-ments which, unless otherwise specified in the purchase orderor in an individual specification, shall apply to Carbon and alloysteel bars under each of the following ASTM specifications (orunder any other ASTM specification which invokes thisspecification or portions thereof).

2 Title of SpecificationASTMD esignationAHot-Rolled Carbon Steel bars : Steel bars , Carbon , Quenched and TemperedA 321 Steel bars and Shapes, Carbon Rolled from T RailsA 499 Steel bars , Carbon , Merchant Quality, M-GradesA 575 Steel bars , Carbon , Hot-Wrought, Special QualityA 576 Steel bars , Carbon , Merchant Quality, MechanicalPropertiesA 663/A 663 MSteel bars , Carbon , Hot-Wrought, Special Quality, Me-chanical PropertiesA 675/A 675 MSteel bars for Springs, Carbon and AlloyA 689 Cold-Finished Carbon Steel bars : Steel bars , Carbon and Alloy , Cold-FinishedA 108 Cold-Drawn Stress-Relieved Carbon Steel bars Sub-ject to Mechanical Property RequirementsA 311/A 311 MHot-Rolled Alloy Steel bars : Steel bars , Alloy , Standard GradesA 322 Carbon and Alloy Steel bars Subject to End-QuenchHardenability RequirementsA 304 Steel bars , Alloy , Hot-Wrought or Cold-Finished,Quenched and TemperedA 434 Steel bars , Alloy , Hot-Wrought, for Elevated Tempera-ture or Pressure-Containing Parts, or BothA 739 Cold-Finished Alloy Steel bars .

3 Steel bars , Alloy , Hot-Rolled or Cold-Finished,Quenched and TemperedA 434 Steel bars , Carbon , Hot-Wrought or Cold-Finished,Special Quality, for Pressure Piping ComponentsA 696 AThese designations refer to the latest issue of the respective specifications,which appear either in theAnnual Book of ASTM standards , Vol , or asreprints obtainable from In case of any conflict in requirements, the requirementsof the purchase order, the individual material specification, andthis general specification shall prevail in the sequence The values stated in inch-pound units or SI units are tobe regarded as the Standard .

4 Within the text, the SI units areshown in brackets. The values stated in each system are notexact equivalents; therefore, each system must be used inde-pendently of the other. Combining values from the two systemsmay result in nonconformance with the For purposes of determining conformance to this speci-fication and the various material specifications referenced , dimensional values shall be rounded to the nearest unit inthe right-hand place of figures used in expressing the limitingvalues in accordance with the rounding method of Specification A 29 previously listed dimensional tolerancesfor cold-finished bars .

5 These are now found in SpecificationA Referenced standards :3A 108 Specification for Steel bars , Carbon and Alloy ,Cold-FinishedA 304 Specification for Carbon and Alloy Steel bars Sub-ject to End-Quench Hardenability RequirementsA 311/A 311 MSpecification for Cold-Drawn, Stress-Relieved Carbon Steel bars Subject to Mechanical Prop-erty RequirementsA 321 Specification for Steel bars , Carbon , Quenched andTemperedA 322 Specification for Steel bars , Alloy , Standard GradesA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 434 Specification for Steel bars , Alloy , Hot-Wrought orCold-Finished.

6 Quenched and TemperedA 499 Specification for Steel bars and Shapes, CarbonRolled from T RailsA 575 Specification for Steel bars , Carbon , Merchant Qual-ity, M-GradesA 576 Specification for Steel bars , Carbon , Hot-Wrought,Special Quality1 This specification is under the jurisdiction of ASTM Committee A01 on Steel ,Stainless Steel and Related Alloys and is the direct responsibility of on edition approved May 1, 2005. Published May 2005. Originallyapproved in 1957. Last previous edition approved in 2004 as A 29/A 29M ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-29/SA-29M in Section II of that referenced ASTM standards , visit the ASTM website, , orcontact ASTM Customer Service at For Annual Book of ASTMS tandards volume information, refer to the Standard s Document Summary page onthe ASTM *A Summary of Changes section appears at the end of this ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United by ASTM Int'l (all rights reserved).

7 Fri Oct 13 09:35:51 EDT 2006 Reproduction authorized per License Agreement with William Hughes (Cab Incorporated);A 663/A 663 MSpecification for Steel bars , Carbon , Mer-chant Quality, Mechanical PropertiesA 675/A 675 MSpecification for Steel bars , Carbon , Hot-Wrought, Special Quality, Mechanical PropertiesA 689 Specification for Carbon and Alloy Steel bars forSpringsA 696 Specification for Steel bars , Carbon , Hot-Wrought orCold-Finished, Special Quality for Pressure Piping Com-ponentsA 700 Practices for Packaging, Marking, and LoadingMethods for Steel Products for Domestic ShipmentA 739 Specification for Steel bars , Alloy , Hot-Wrought, forElevated Temperature or Pressure-Containing Parts.

8 OrBothA 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel ProductsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE112 Test Methods for Determining Average Grain standards :4 Fed. Std. No. 123 Marking for Shipment (Civil Agencies)Fed. Std. No. 183 Continuous Identification Marking of Ironand Steel Standard :4 MIL-STD-163 Steel Mill Products Preparation for Ship-ment and standards :AIAG B-1 Bar Code Symbology Standard for 3-of-9 BarCodes5 AIAG Primary Metals Tag Application Standard53. of Terms Specific to This Steel bars Steel bars produced by hotforming ingots, blooms, billets, or other semifinished forms toyield straight lengths (or coils, depending upon size, section,and mill equipment) in sections that are uniform throughouttheir length, and in the following sections and ,7 32to in.

9 [ to 250 mm], inclusive, ,7 32to in. [6 to 160 mm], inclusive, Squares,7 32to in. [6 to 200mm], inclusive, ,1 4to 8 in. inclusive, in width:13 64in. inminimum thickness up to 6 in. in width; and in. inminimum thickness for over 6 to 8 in. in width, inclusive [over5 mm in thickness up to 150 mm in width; and over 6 mm inthickness for over 150 mm through 200 mm in width].Maximum thickness for all widths is 4 in. [100 mm]. and Octagons,1 4to 41 16in. [6 to 103mm], inclusive, between parallel surfaces, Size Shapes Angles, channels, tees, zees,when their greatest cross-sectional dimension is under 3 in.

10 [75mm], Bar Sections Half-rounds, ovals, half-ovals, other special bar size Steel bars Steel bars produced bycold finishing previously hot-wrought bars by means of colddrawing, cold forming, turning, grinding, or polishing (singlyor in combination) to yield straight lengths or coils in sectionsthat are uniform throughout their length and in the followingsections and , 9 in. [230 mm] and under in diameter, , 6 in. [150 mm] and under between parallelsurfaces, , 4 in. [100 mm] and under betweenparallel surfaces, ,1 8in. [3 mm] and over in thickness and notover 12 in. [300 mm] in width, Bar Unless otherwise specified in the contract ororder, a lot shall consist of all bars submitted for inspection atthe same time of the same heat, condition, finish, size, or bars specified in the quenched and tempered condition,when heat treated in batch-type furnaces, a lot shall consist ofall bars from the same heat, of the same prior condition, thesame size, and subjected to the same heat treatment in onetempering charge.