ASTM A1011 A1011M-04

ASTM A1011 A1011M-04 specifies requirements for for general applications.

Standard Specification for
Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-
Strength Low-Alloy and High-Strength Low-Alloy with
Improved Formability 1
This standard is issued under the fixed designation A 1011/A 1011M; 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.
1. Scope*
1.1 This specification covers hot-rolled, carbon, structural,
high-strength low-alloy, and high-strength low-alloy with im-
proved formability steel sheet and strip, in coils and cut
1.2 Hot rolled steel sheet and strip is available in the
designations as listed in 4.1.
1.3 This specification is not applicable to the steel covered
by Specification A 635/A 635M.
1.4 The values stated in either inch-pound units or SI units
are to be regarded separately 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.
2. Referenced Documents
2.1 ASTM Standards:
A 370 Test Methods and Definitions for Mechanical Testing
of Steel Products
A 568/A 568M Specification for Steel, Sheet, Carbon, and
High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,
General Requirements for
A 569/A 569M Specification for Steel, Carbon (0.15 Maxi-
mum, Percent), Hot-Rolled Sheet and Strip Commercial 3
A 622/A 622M Specification for Drawing Steel (DS), Sheet
and Strip, Carbon, Hot-Rolled 3
A 635/A 635M Specification for Steel, Sheet and Strip,
Heavy-Thickness Coils, Carbon, Commercial Steel, Draw-
ing Steel, Structural, High-Strength Low-Alloy and High-
Strength Low-Alloy with Improved Formability, Hot-
Rolled, General Requirements for
A 749/A 749M Specification for Steel, Strip, Carbon and
High-Strength, Low-Alloy, Hot-Rolled, General Require-
ments for
A 941 Terminology Relating to Steel, Stainless Steel, Re-
lated Alloys, and Ferroalloys
E 18 Standard Test Methods for Rockwell Hardness and
Rockwell Superficial Hardness of Metallic Materials
3. Terminology
3.1 Definitions—For definitions of other terms used in this
specification refer to Terminology A 941.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 aging—loss of ductility with an increase in hardness,
yield strength, and tensile strength that occurs when steel,
which has been slightly cold worked (such as by temper
rolling) is stored for some time. Discussion—Aging also increases the tendency to-
ward stretcher strains and fluting.
3.2.2 stabilization—the addition of one or more nitride or
carbide forming elements, or both, such as titanium and
columbium, to control the level of the interstitial elements
carbon and nitrogen in the steel. Discussion—Stabilization improves formability and
increases resistance to aging.
3.2.3 vacuum degassing—a process of refining liquid steel
in which the liquid is exposed to a vacuum as part of a special
technique for removing impurities or for decarburizing the
4. Classification
4.1 Hot-rolled steel sheet and steel strip is available in the
following designations:
4.1.1 Commercial Steel (CS Types A, B, C, and D),
4.1.2 Drawing Steel (DS Types A and B),
N OTE 1—CS Type B and DS Type B describe the most common
product previously included, respectively, in Specifications A 569/
A 569M and A 622/A 622M.