ASTM A311/A311M-04

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Designation: A311/A311M – 04
Standard Specification for
Cold-Drawn, Stress-Relieved Carbon Steel Bars Subject to
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Mechanical Property Requirements
This standard is issued under the fixed designationA311/A311M; 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.
1. Scope* 3.2 Definitions of Terms Specific to This Standard:
3.2.1 heavy draft—Using higher than normal drafts (ap-
1.1 This specification covers two classes, nine grades, and
proximately 10 % through 35 % reduction), followed by stress
four conditions of stress-relieved cold-drawn carbon steel bars
relieving, produces higher tensile and yield strengths provided
producedtomechanicalpropertyrequirements.Oneclass,B,is
an appropriate composition is used; for example, medium
cold drawn with higher than normal (heavy) drafts to provide
carbon with normal or higher manganese content.
higher strength levels, and four grades provide improved
machinability.
4. Classification
1.2 Supplementary Requirements, S1 through S6, of an
4.1 The bars are furnished in the following classes and
optional nature are provided.
grades, and in the conditions shown in 6.4.
1.3 The values stated in inch-pound units or SI units are to
4.1.1 ClassA—Normal-draftcold-drawnandstress-relieved
be regarded as the standard. Within the text, the SI units are
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rounds, squares, hexagons, and flats in the following grades:
shown in brackets. The values stated in each system are not
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Grades UNS Designations
exact equivalents, therefore, each system must be used inde-
1018 G10180
pendentlyoftheother.Combiningvaluesfromthetwosystems
1035 G10350
may result in nonconformance with the specification. 1045 G10450
1050 G10500
1541 G15410
2. Referenced Documents
1117 G11170
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2.1 ASTM Standards: 1137 G11370
1141 G11410
A29/A29M Specification for Steel Bars, Carbon and Alloy,
1144 G11440
Hot-Wrought, General Requirements for
4.1.2 Class B—Heavy-draft cold-drawn and stress-relieved
A108 Specification for Steel Bar, Carbon and Alloy, Cold-
rounds and hexagons in the following grades:
Finished
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A370 Test Methods and Definitions for Mechanical Testing Grade UNS Designations
1045 G10450
of Steel Products
1050 G10500
E527 Practice for Numbering Metals and Alloys in the
1541 G15410
Unified Numbering System (UNS) 1141 G11410
1144 G11440
3. Terminology
5. Ordering Information
3.1 Definitions:
5.1 Orders for material under this specification should
3.1.1 stress relieving—heating to a suitable temperature,
include the following information as required to adequately
holding long enough to reduce residual stresses, and then
describe the desired material:
cooling slowly enough to minimize the development of new
5.1.1 Quantity (weight [mass] or number of pieces),
residual stresses.
5.1.2 Nameofmaterial(carbonsteelbars,colddrawn,stress
relieved),
5.1.3 Condition 8.3,
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
5.1.4 Cross-sectional shape,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
5.1.5 Size,
A01.15 on Bars.
5.1.6 Length,
Current edition approved March 1, 2004. Published April 2004. Originally
approved in 1947. Last previous edition approved in 2000 as A311/A311M–95
5.1.7 Class and grade,
(2000). DOI: 10.1520/A0311_A0311M-04.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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Standards volume information, refer to the standard’s Document Summary page on New designation established in accordance with Practice E527 and SAE
the ASTM website. J 1086.
*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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A311/A311M – 04
NOTE 2—When turned bars are specified, turning may be performed
5.1.8 Report of heat analysis, tensile properties Section 11,
prior to cold-drawing.
5.1.9 ASTM designation A311 or A311M,
5.1.10 Application,
7. Chemical Composition
5.1.11 Leaded steel, when required (see Table 1, footnote
A), 7.1 Composition—The cast or heat analysis shall conform
5.1.12 Supplementary requirements, if any, and to the chemical composition requirements specified in Table 1
5.1.13 Additional requirements, if any. for the grade ordered.
NOTE 1—Atypical ordering description is as follows: 10 000 lb carbon
8. Mechanical Properties
steel bars, cold drawn, stress relieved turned and polished, round 2.0 in.
(50.8 mm) Diameter, 10 to 12 ft (3048 to 3658 mm) long, Class B, Grade
8.
...