ASTM A108-03e1
(Specification)Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished
Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished
SCOPE
1.1 This specification covers cold-finished carbon and alloy steel bars produced in straight length and coil to chemical compositions. Cold-finished bars are suitable for heat treatment, for machining into components, or for use in the as-finished condition as shafting, or in constructional applications, or for other similar purposes (Note 1). Grades of steel are identified by grade numbers or by chemical composition.
Note 1—A guide for the selection of steel bars is contained in Practice A 400.
1.2 Some end uses may require one or more of the available designations shown under Supplementary Requirements. Supplementary requirements shall apply only when specified individually by the purchaser.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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Designation: A 108 – 03
Standard Specification for
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Steel Bar, Carbon and Alloy, Cold-Finished
This standard is issued under the fixed designation A 108; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
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e NOTE—Editorial changes were made throughout in June 2005.
1. Scope A 576 Specification for Steel Bars, Carbon, Hot-Wrought,
Special Quality
1.1 This specification covers cold-finished carbon and alloy
2.2 Other Documents:
steel bars produced in straight length and coil to chemical
SAE Handbook and SAE J1086 Recommended Practice for
compositions. Cold-finished bars are suitable for heat treat-
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Numbering Metals and Alloys (UNS)
ment, for machining into components, or for use in the
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ISS Steel Bar Product Guidelines
as-finished condition as shafting, or in constructional applica-
tions,orforothersimilarpurposes(Note1).Gradesofsteelare
3. Terminology
identified by grade numbers or by chemical composition.
3.1 Definition:
NOTE 1—Aguide for the selection of steel bars is contained in Practice
3.1.1 product tolerance levels—cold-finished steel bar is
A 400.
producedwithuptofour(4)increasinglytighttolerancelevels,
1.2 Some end uses may require one or more of the available
for the individual product characteristics, dependent on the
designations shown under Supplementary Requirements.
method of manufacture necessary to meet purchaser-ordered
Supplementary requirements shall apply only when specified
specification requirements. (Product Tolerance Level 1 is
individually by the purchaser.
selected, unless otherwise specified by purchaser.)
1.3 The values stated in inch-pound units are to be regarded
4. Ordering Information
as the standard. The values given in parentheses are for
information only. 4.1 Orders for cold-finished steel bar to this specification
should include the following items to adequately describe the
2. Referenced Documents
material:
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2.1 ASTM Standards:
4.1.1 Name of material,
A 29/A 29M SpecificationforSteelBars,CarbonandAlloy,
4.1.2 ASTM specification number and date of issue,
Hot-Wrought. General Requirements for
4.1.3 Chemical composition, grade designation or limits,
A 304 Specification for Carbon and Alloy Steel Bars Sub-
4.1.4 Silicon level, if required,
ject to End-Quench Hardenability Requirements
4.1.5 Additional machinability-enhancing elements (see
A 322 Specification for Steel Bars, Alloy, Standard Grades
Footnote F to Table 1 of Specification A 29/A 29M),
A 370 Test Methods and Definitions for MechanicalTesting
4.1.6 Condition (Surface Roughness tolerances listed in
of Steel Products
Table A1.7),
A 400 Practice for Steel Bars, Selection Guide, Composi-
4.1.7 Tolerance Levels (Reference tolerances listed in Table
tion, and Mechanical Properties
A1.1 through Table A1.9),
A 510 Specification for General Requirements for Wire
4.1.8 Shape (round, hexagon, square, flat, etc.), size, and
Rods and Coarse Round Wire, Carbon Steel
length,
4.1.9 Report of heat analysis, if required,
4.1.10 End use,
4.1.11 Additions to the specification and special or supple-
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
mentary requirements, if required, and
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
A01.15 on Bars.
Current edition approved Nov. 1, 2003. Published December 2003. Originally
approved in 1926. Last previous edition approved in 1999 as A 108 – 99.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Society of Automotive Engineers (SAE), 400 Commonwealth
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Dr., Warrendale, PA 15096-0001.
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Standards volume information, refer to the standard’s Document Summary page on Available from ISS Customer Service, 410 Commonwealth Drive, Warrendale,
the ASTM website. PA, 15086.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A108–03
4.1.12 For coiled product, the coil weights, inside diameter, 7. Chemical Composition
outside diameter, and coil height limitations, when required.
7.1 Chemical Composition:
7.1.1 The chemical analysis of the steel shall conform to
NOTE 2—Atypical ordering description is as follows: Steel Bar;ASTM
A 108, dated _____; SAE 1117; Coarse Grain; Cold Drawn; 1.500-in. that specified in Specification A 29/A 29M for the steel grade
(38.10 mm) diameter round; 12 ft (3657.61 mm) long; Heat Analysis
ordered, o
...
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