ASTM A749/A749M-08
(Specification)Standard Specification for Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-Rolled, General Requirements for
Standard Specification for Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-Rolled, General Requirements for
ABSTRACT
This specification covers the general requirements for hot-rolled steel strip in coils and cut lengths. It applies to carbon steel and high-strength, low-alloy steel furnished as hot-rolled. Hot-rolled material shall be furnished hot-rolled, not annealed, or pickled. The chemical composition shall be in accordance with the applicable product specification. Where the material is used for fabrication by welding, care must be exercised in the selection of chemical composition or mechanical properties to ensure compatibility with the welding process and its effect on altering the properties. A heat analysis shall be conducted to determine the percentage of elements specified or restricted by the applicable specification. The specimens shall be subjected to bend and tension tests.
SCOPE
1.1 This specification covers the general requirements for hot-rolled steel strip in coils and cut lengths. It applies to carbon steel and high-strength, low-alloy steel furnished as hot-rolled.
1.2 This specification is not applicable to hot-rolled heavy-thickness carbon sheet and strip coils (Specification A 635/A 635M), cold-rolled carbon steel strip (Specification A 109/A 109M), high-strength, low-alloy cold-rolled steel (Specifications A 606 and A 1008/A 1008M) or cold-rolled carbon spring steel (Specification A 682/A 682M).
1.3 In case of any conflict in requirements, the requirements of the individual material specification shall prevail over those of this general specification.
1.4 For the purposes of determining conformance with this and the appropriate product specification referenced under 2.1, 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.
1.5 Annex A1 lists permissible variations in dimensions and mass (Note 1) in SI [metric] units. The values listed are not exact conversions of the values listed in the inch-pound tables, but instead are rounded or rationalized values. Conformance to Annex A1 is mandatory when the “M” specification is used.
Note 1—The term “weight” is used when inch-pound units are the standard; however, under SI, the preferred term is “mass.”
1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.7 This specification and the applicable material specifications are expressed in both inch-pound units and SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.
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Designation:A749/A749M −08
StandardSpecification for
Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-
1
Rolled, General Requirements for
This standard is issued under the fixed designationA749/A749M; 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* 1.7 This specification and the applicable material specifica-
tions are expressed in both inch-pound units and SI units.
1.1 This specification covers the general requirements for
However, unless the order specifies the applicable “M” speci-
hot-rolled steel strip in coils and cut lengths. It applies to
fication designation (SI units), the material shall be furnished
carbon steel and high-strength, low-alloy steel furnished as
to inch-pound units.
hot-rolled.
1.2 This specification is not applicable to hot-rolled heavy- 2. Referenced Documents
thickness carbon sheet and strip coils (Specification A635/ 2
2.1 ASTM Standards:
A635M), cold-rolled carbon steel strip (Specification A109/
A109/A109M Specification for Steel, Strip, Carbon (0.25
A109M), high-strength, low-alloy cold-rolled steel
Maximum Percent), Cold-Rolled
(Specifications A606 and A1008/A1008M) or cold-rolled car-
A370 Test Methods and Definitions for Mechanical Testing
bon spring steel (Specification A682/A682M).
of Steel Products
1.3 In case of any conflict in requirements, the requirements
A606 Specification for Steel, Sheet and Strip, High-
of the individual material specification shall prevail over those
Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with
of this general specification.
Improved Atmospheric Corrosion Resistance
A635/A635M Specification for Steel, Sheet and Strip,
1.4 For the purposes of determining conformance with this
Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon,
and the appropriate product specification referenced under 2.1,
Structural, High-Strength Low-Alloy, and High-Strength
values shall be rounded to the nearest unit in the right hand
Low-Alloy with Improved Formability, General Require-
place of figures used in expressing the limiting values in
ments for
accordance with the rounding method of Practice E29.
A682/A682M Specification for Steel, Strip, High-Carbon,
1.5 AnnexA1 lists permissible variations in dimensions and
Cold-Rolled, General Requirements For (Withdrawn
mass (Note 1) in SI [metric] units. The values listed are not 3
2009)
exact conversions of the values listed in the inch-pound tables,
A700 Practices for Packaging, Marking, and Loading Meth-
but instead are rounded or rationalized values. Conformance to
ods for Steel Products for Shipment
Annex A1 is mandatory when the “M” specification is used.
A751 Test Methods, Practices, and Terminology for Chemi-
cal Analysis of Steel Products
NOTE 1—The term “weight” is used when inch-pound units are the
standard; however, under SI, the preferred term is “mass.”
A1008/A1008M Specification for Steel, Sheet, Cold-Rolled,
Carbon, Structural, High-Strength Low-Alloy, High-
1.6 The values stated in either SI units or inch-pound units
Strength Low-Alloy with Improved Formability, Solution
are to be regarded separately as standard. The values stated in
Hardened, and Bake Hardenable
each system may not be exact equivalents; therefore, each
E11 Specification for Woven Wire Test Sieve Cloth and Test
system shall be used independently of the other. Combining
Sieves
values from the two systems may result in non-conformance
E29 Practice for Using Significant Digits in Test Data to
with the standard.
Determine Conformance with Specifications
1 2
This specification is under the jurisdiction of ASTM Committee A01 on Steel, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
A01.19 on Steel Sheet and Strip. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2008. Published October 2008. Originally the ASTM website.
3
approved in 1981. Last previous edition approved in 2002 as A749 – 97 (2002). The last approved version of this historical standard is referenced on
DOI: 10.1520/A0749_A0749M-08. www.astm.org.
*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
1
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A749/A749M−08
E290 Test Methods for Bend Testing of Material for Ductil-
W
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:A 749/A749M–97 (Reapproved 2002) Designation: A749/A749M – 08
Standard Specification for
Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-
1
Rolled, General Requirements for
This standard is issued under the fixed designationA749/A749M; 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*
1.1 This specification covers the general requirements for hot-rolled steel strip in coils and cut lengths. It applies to carbon steel
and high-strength, low-alloy steel furnished as hot-rolled.
1.2This specification is not applicable to hot-rolled heavy-thickness carbon sheet and strip coils (ASTM Specification A 635A
635/A635M/A 635M), cold-rolled carbon steel strip (ASTM Specification A 109 or A 109MA 109A 109M), high-strength,
low-alloy cold-rolled steel (ASTM Specifications A 606 and A 607A 606A 607) or cold-rolled carbon spring steel (ASTM
Specification A 682 or A 682MA 682A 682M
1.2 This specification is not applicable to hot-rolled heavy-thickness carbon sheet and strip coils (SpecificationA635/A635M),
cold-rolled carbon steel strip (Specification A109/A109M), high-strength, low-alloy cold-rolled steel (Specifications A606 and
A1008/A1008M) or cold-rolled carbon spring steel (Specification A682/A682M).
1.3 In case of any conflict in requirements, the requirements of the individual material specification shall prevail over those of
this general specification.
1.4 For the purposes of determining conformance with this and the appropriate product specification referenced under 2.1,
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 29E29.
1.5 AnnexA1 lists permissible variations in dimensions and mass (Note 1) in SI [metric] units. The values listed are not exact
conversions of the values listed in the inch-pound tables, but instead are rounded or rationalized values. Conformance to Annex
A1 is mandatory when the “M” specification is used.
NOTE 1—The term “weight” is used when inch-pound units are the standard; however, under SI, the preferred term is “mass.”
1.6 The values stated in either inch-poundSI units or SIinch-pound units are to be regarded separately as standard. Within the
text, the SI units are shown in brackets. The values stated in each system aremay not be exact equivalents; therefore, each system
mustshall be used independently of the other. Combining values from the two systems may result in non-conformance with the
specification. standard.
1.7 This specification and the applicable material specifications are expressed in both inch-pound units and SI units. However,
unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound
units.
2. Referenced Documents
2
2.1 ASTM Standards:
A109Specification for Steel, Strip, Carbon, Cold-Rolled
2
A109MSpecification for Steel, Strip, Carbon, Cold-Rolled (Metric) 109/A109M Specification for Steel, Strip, Carbon (0.25
Maximum Percent), Cold-Rolled
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A606 Specification for Steel, Sheet and Strip, High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with Improved
2
Atmospheric Corrosion Resistance
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel,Steel and Related Alloys,Alloys and is the direct responsibility of
Subcommittee A01.19 on Steel Sheet and Strip.
Current edition approved November 10, 2002. Published January 2003. Originally approved in 1981. Last previous edition approved in 1997 as A 749–97.
Current edition approved Oct. 1, 2008. Published October 2008. Originally approved in 1981. Last previous edition approved in 2002 as A749 – 97 (2002). DOI:
10.1520/A0749_A0749M-08.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 01.03.volume information, refer to the standard’s Document Summary page on the ASTM website.
*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 Stat
...
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