ASTM A749/A749M-97(2002)
(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 (ASTM Specification A 635/A 635M), cold-rolled carbon steel strip (ASTM Specification A 109 or A 109M), high-strength, low-alloy cold-rolled steel (ASTM Specifications A 606 and A 607) or cold-rolled carbon spring steel (ASTM Specification A 682 or 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 , 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 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-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
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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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: A 749/A749M – 97 (Reapproved 2002)
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 (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.
1. Scope However, unless the order specifies the applicable “M” speci-
fication designation (SI units), the material shall be furnished
1.1 This specification covers the general requirements for
to inch-pound units.
hot-rolled steel strip in coils and cut lengths. It applies to
carbon steel and high-strength, low-alloy steel furnished as
2. Referenced Documents
hot-rolled.
2.1 ASTM Standards:
1.2 This specification is not applicable to hot-rolled heavy-
2
A 109 Specification for Steel, Strip, Carbon, Cold-Rolled
thickness carbon sheet and strip coils (ASTM Specification
A 109M Specification for Steel, Strip, Carbon, Cold-Rolled
A 635/A 635M), cold-rolled carbon steel strip (ASTM Speci-
2
(Metric)
fication A 109 or A 109M), high-strength, low-alloy cold-
A 370 Test Methods and Definitions for MechanicalTesting
rolled steel (ASTM Specifications A 606 and A 607) or cold-
2
of Steel Products
rolled carbon spring steel (ASTM Specification A 682 or
A 606 Specification for Steel, Sheet and Strip, High-
A 682M).
Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with
1.3 In case of any conflict in requirements, the requirements
2
Improved Atmospheric Corrosion Resistance
of the individual material specification shall prevail over those
A 607 Specification for Steel, Sheet and Strip, High-
of this general specification.
Strength, Low-Alloy, Columbium or Vanadium, or Both,
1.4 For the purposes of determining conformance with this
2
Hot-Rolled and Cold-Rolled
and the appropriate product specification referenced under 2.1,
A 635/A635M Specification for Steel, Sheet and Strip,
values shall be rounded to the nearest unit in the right hand
2
Heavy-Thickness Coils, Carbon, Hot-Rolled
place of figures used in expressing the limiting values in
A 682 Specification for Steel, Strip, High-Carbon, Cold-
accordance with the rounding method of Practice E 29.
2
Rolled, Spring Quality, General Requirements For
1.5 AnnexA1 lists permissible variations in dimensions and
A 682M Specification for Steel, Strip, High-Carbon, Cold-
mass (Note 1) in SI [metric] units. The values listed are not
Rolled, Spring Quality, General Requirements For (Met-
exact conversions of the values listed in the inch-pound tables,
2
ric)
but instead are rounded or rationalized values. Conformance to
A 700 Practices for Packaging, Marking, and Loading
Annex A1 is mandatory when the “M” specification is used.
3
Methods for Steel Products for Domestic Shipment
NOTE 1—The term “weight” is used when inch-pound units are the
A 751 Test Methods, Practices, and Terminology for
standard; however, under SI, the preferred term is “mass.”
2
Chemical Analysis of Steel Products
1.6 The values stated in either inch-pound units or SI units
E 11 Specification for Wire-Cloth Sieves for Testing Pur-
4
are to be regarded as standard. Within the text, the SI units are
poses
shown in brackets. The values stated in each system are not
E 29 Practice for Using Significant Digits in Test Data to
4
exact equivalents; therefore, each system must be used inde-
Determine Conformance with Specifications
pendentlyoftheother.Combiningvaluesfromthetwosystems
E 290 TestMethodforSemi-GuidedBendTestforDuctility
5
may result in nonconformance with the specification.
of Metallic Materials
6
1.7 This specification and the applicable material specifica-
2.2 Military Standards:
tions are expressed in both inch-pound units and SI units.
2
Annual Book of ASTM Standards, Vol 01.03.
1 3
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Annual Book of ASTM Standards, Vol 01.05.
4
Stainless Steel, and RelatedAlloys, and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 14.02.
5
A01.19 on Steel Sheet and Strip. Annual Book of ASTM Standards, Vol 03.01.
6
Current edition approved November 10, 2002. Published January 2003. Origi- AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
nally approved in 1981. Last previous edition approved in 1997 as A 749 – 97. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A 749/A749M – 97 (2002)
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