ASTM A108-07
(Specification)Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished
Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished
ABSTRACT
This specification covers cold-finished carbon and alloy steel bars for heat treatment, machining into components, or for as-finished condition as shafting or in constructional applications. The steel materials shall be cold drawn, turned, ground, polished, hot wrought, cold rolled, and heat treated. The steel specimens shall undergo chemical analysis.
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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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:A108 −07
StandardSpecification for
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Steel Bar, Carbon and Alloy, Cold-Finished
This standard is issued under the fixed designation A108; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* A576 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
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Numbering Metals and Alloys (UNS)
treatment, 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
applications, or for other similar purposes (Note 1). Grades of
3. Terminology
steel are identified by grade numbers or by chemical compo-
3.1 Definitions:
sition.
3.1.1 product tolerance levels—cold-finished steel bar is
NOTE 1—Aguide for the selection of steel bars is contained in Practice
A400. producedwithuptofour(4)increasinglytighttolerancelevels,
for the individual product characteristics, dependent on the
1.2 Some end uses may require one or more of the available
method of manufacture necessary to meet purchaser-ordered
designations shown under Supplementary Requirements.
specification requirements. (Product Tolerance Level 1 is
Supplementary requirements shall apply only when specified
selected, unless otherwise specified by purchaser.)
individually by the 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
4.1 Orders for cold-finished steel bar to this specification
information only.
should include the following items to adequately describe the
material:
2. Referenced Documents
4.1.1 Name of material,
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2.1 ASTM Standards:
4.1.2 ASTM specification number and date of issue,
A29/A29M Specification for Steel Bars, Carbon and Alloy,
4.1.3 Chemical composition, grade designation or limits,
Hot-Wrought, General Requirements for
4.1.4 Silicon level, if required,
A304 Specification for Carbon andAlloy Steel Bars Subject
4.1.5 Additional machinability-enhancing elements (see
to End-Quench Hardenability Requirements
Footnote F to Table 1 of Specification A29/A29M),
A322 Specification for Steel Bars, Alloy, Standard Grades
4.1.6 Condition (Surface Roughness tolerances listed in
A370 Test Methods and Definitions for Mechanical Testing
Table A1.7),
of Steel Products
4.1.7 Tolerance Levels (Reference tolerances listed in Table
A400 Practice for Steel Bars, Selection Guide, Composition,
A1.1 through Table A1.9),
and Mechanical Properties
4.1.8 Shape (round, hexagon, square, flat, etc.), size, and
A510 Specification for General Requirements forWire Rods
length,
and Coarse Round Wire, Carbon Steel
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 ofASTM Committee A01 on Steel,
mentary requirements, if required, and
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
4.1.12 For coiled product, the coil weights, inside diameter,
A01.15 on Bars.
outside diameter, and coil height limitations, when required.
Current edition approved Sept. 1, 2007. Published September 2007. Originally
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approved in 1926. Last previous edition approved in 2003 as A108 – 03 . DOI:
10.1520/A0108-07.
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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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A108−07
NOTE 2—Atypical ordering description is as follows: Steel Bar;ASTM
A108, dated _____; SAE 1117; Coarse Grain; Cold Drawn; 1.500-in.
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A108−07
(38.10 mm) diameter round; 12 ft (3657.61 mm) long; Heat Analysis
7.1.1 The chemical analysis of the steel shall conform to
Required; Precision Machined Parts
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