ASTM A1011 - A 1011M - 23 高强度低合金和改型高强度低合金热轧结构碳钢板材和带材规范

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Designation: A1011/A1011M −23
Standard Speciﬁcation for
Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-
Strength Low-Alloy, High-Strength Low-Alloy with Improved
Formability, and Ultra-High Strength
1
This standard is issued under the ﬁxed designation A1011/A1011M; 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 U.S. Department of Defense.
1. Scope*
1.1 This speciﬁcation covers hot-rolled, carbon, structural,
high-strength low-alloy, high-strength low-alloy with im-
proved formability, and ultra-high strength steel sheet and strip,
in coils and cut lengths.
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 A635/A635M.
1.4 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.
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
2
A370 Test Methods and Deﬁnitions for Mechanical Testing
of Steel Products
A568/A568M Speciﬁcation for Steel, Sheet, Carbon,
Structural, and High-Strength, Low-Alloy, Hot-Rolled and
Cold-Rolled, General Requirements for
A635/A635M Speciﬁcation for Steel, Sheet and Strip,
Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon,
Structural, High-Strength Low-Alloy, and High-Strength
Low-Alloy with Improved Formability, General Require-
ments for
A749/A749M Speciﬁcation for Steel, Strip, Carbon and
High-Strength, Low-Alloy, Hot-Rolled, General Require-
ments for
A751 Test Methods and Practices for Chemical Analysis of
Steel Products
A941 Terminology Relating to Steel, Stainless Steel, Related
Alloys, and Ferroalloys
E18 Test Methods for Rockwell Hardness of Metallic Ma-
terials
3. Terminology
3.1 Deﬁnitions—For deﬁnitions of other terms used in this
speciﬁcation refer to Terminology A941.
3.2 Deﬁnitions of Terms Speciﬁc to This Standard:
3.2.1 aging, n—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.
3.2.1.1 Discussion—Aging also increases the tendency to-
ward stretcher strains and ﬂuting.
3.2.2 inclusion control, n—the process of reducing the
volume fraction of inclusions or modifying the shape of
inclusions to improve formability, weldability, and machinabil-
ity.
3.2.2.1 Discussion—Inclusions, especially those elongated
during the rolling process, create the conditions for initiating or
propagating cracks when the material is stretched or bent
during the manufacture of a part (or both). The adverse effects
of inclusions are minimized by reducing the content of
inclusions in the steel or by altering the shape of inclusions
through the use of additions during the steelmaking process
that change the elongated shape of the inclusions to less
harmful small, well dispersed globular inclusions (or both).
1
This speciﬁcation is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.19 on Steel Sheet and Strip.
Current edition approved May 1, 2023. Published June 2023. Originally
approved in 2000. Last previous edition approved in 2018 as A1011/A1011M – 18a.
DOI: 10.1520/A1011_A1011M-23.
2
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
Standards 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 States
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
1

3.2.3 stabilization, n—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.
3.2.3.1 Discussion—Stabilization improves formability and
increases resistance to aging.
3.2.4 vacuum degassing, n—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
steel.
3.2.5 Special Forming Steel (SFS), n—Steel ordered to 1010
chemistry or greater levels of carbon, manganese or both,
which exhibits enhanced formability or mechanical properties.
3.2.5.1 Discussion—Steel grades such as CS – 1010 or CS –
1020 for example, adheres to chemistry requirements only,
whereas SFS – 1010 or SFS – 1020, also provide enhanced
formability. Due to greater carbon content, SFS – 1020 is not
as formable as SFS – 1010.
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, as
speciﬁed in Table 1),
4.1.2 Commercial Steel (CS Types A and B combined with
chemistry grade in accordance with Speciﬁcation A568/
A568M Table X2.3),
4.1.3 Drawing Steel (DS Types A and B, as speciﬁed in
Table 1),
4.1.4 Drawing Steel (DS Types A and B combined with
chemistry grade in accordance with Speciﬁcation A568/
A568M Table X2.3,
4.1.5 Commercial Steel Chemistry grade in accordance with
Speciﬁcation A568/A568M Table X2.1, with no type speciﬁed
(CS – 1005, CS – 1008, CS – 1020, and so forth),
4.1.6 Special Forming Steel (SFS), chemistry as speciﬁed in
Table 1 with carbon & manganese limits in accordance with
Speciﬁcation A568/A568M Tables X2.1 or X2.2 (examples:
SFS – 1010, SFS – 1020, SFS – C 0.12–0.18 % & Mn
0.50–0.80 %).
4.1.7 Structural Steel (SS grades 30[205], 33[230], 36[250]
Types 1 and 2, 40[275], 45[310] Types 1 and 2, 50[340],
55[380], 60[410], and 70[480].
4.1.8 High-Strength Low-Alloy Steel (HSLAS, classes 1
and 2, in grades 45[310], 50[340], 55[380], 60[410], 65[450],
and 70[480].
4.1.9 High-Strength Low-Alloy Steel with Improved Form-
ability (HSLAS-F grades 50[340], 60[410], 70[480], and
80[550]).
4.1.9.1 HSLAS-F steel has improved formability when
compared to HSLAS. The steel is fully deoxidized, made to a
ﬁne grain practice, and includes microalloying elements such
as columbium, vanadium, and zirconium. The steel shall be
treated to achieve inclusion control.
4.1.10 Ultra-High Strength (UHSS Types 1 and 2, in Grades
90 [620] and 100 [690]).
4.1.10.1 UHSS steel has increased strength compared with
HSLAS-F. The steel is killed and made to a ﬁne ferritic grain
practice, and includes microalloying elements such as colum-
bium (niobium), titanium, vanadium, molybdenum, and so
forth. The steel shall be treated to achieve inclusion control.
The material is intended for miscellaneous applications where
higher strength, savings in weight, and weldability are impor-
tant. Atmospheric corrosion resistance of these steels is equiva-
lent to plain carbon steels. With copper speciﬁed, the atmo-
spheric corrosion resistance is somewhat enhanced.
4.1.11 When required for HSLAS, HSLAS-F, and UHSS
steels, limitations on the use of one or more of the microalloy
elements shall be speciﬁed on the order.
5. Ordering Information
5.1 It is the purchaser’s responsibility to specify in the
purchase order all ordering information necessary to describe
the required material. Examples of such information include,
but are not limited to, the following:
TABLE 1 Chemical Composition
For Hot Rolled Steel Sheet and Strip Designations CS, DS, and SFS
Composition, % Heat Analysis
Element maximum unless otherwise shown
C Mn P S Al Si Cu Ni Cr
B
Mo V Cb/Nb
C
Ti N B
CS Type A
D,E,F,G
0.10 0.60 0.030 0.035
A A
0.20
H
0.20 0.15 0.06 0.008 0.008 0.025
A A
CS Type B
F
0.02–0.15 0.60 0.030 0.035
A A
0.20
H
0.20 0.15 0.06 0.008 0.008 0.025
A A
CS Type C
D,E,F,G
0.08 0.60 0.10 0.035
A A
0.20
H
0.20 0.15 0.06 0.008 0.008 0.025
A A
CS Type D
F
0.10 0.70 0.030 0.035
A A
0.20
H
0.20 0.15 0.06 0.008 0.008 0.008
A A
DS Type A
D,E,G
0.08 0.50 0.020 0.030 0.01 min
A
0.20 0.20 0.15 0.06 0.008 0.008 0.025
A A
DS Type B 0.02–0.08 0.50 0.020 0.030 0.01 min
A
0.20 0.20 0.15 0.06 0.008 0.008 0.025
A A
SFS
I I
0.020 0.030 0.01 min
A
0.20 0.20 0.15 0.06 0.008 0.008 0.025
A A
A
There is no speciﬁed limit, but the analysis shall be reported.
B
Chromium is permitted, at the producer’s option, to 0.25 % maximum when the carbon content is less than or equal to 0.05 %.
C
Columbium (Cb) and niobium (Nb) are considered interchangeable names for element 41 in the periodic table and both names are acceptable for use.
D
Specify Type B to avoid carbon levels below 0.02 %.
E
For carbon levels less than or equal to 0.02 %, it is permissible to use vanadium, columbium, or titanium, or combinations thereof, as stabilizing elements at the producer’s
option. In such case, the limits for these elements are 0.10 % for vanadium or columbium and 0.15 % for titanium.
F
When an aluminum deoxidized steel is required, it is permissible to order a minimum of 0.01 % total aluminum.
G
It is permissible to furnish as a vacuum degassed or chemically stabilized steel, or both, at producer’s option.
H
When copper steel is speciﬁed, the copper limit is a minimum requirement. When copper steel is not speciﬁed, the copper limit is a maximum requirement.
I
Carbon & manganese chemistry limits shall be speciﬁed in accordance with Speciﬁcation A568/A568M, Tables X2.1 or X2.2.
A1011/A1011M − 23
2

5.1.1 ASTM speciﬁcation number and year of issue,
5.1.2 Name of material and designation (hot-rolled steel
sheet) (include grade, type and class, as appropriate, for CS,
DS, SFS, SS, HSLAS, HSLAS-F, and UHSS) (see 4.1),
5.1.2.1 When a chemistry grade is speciﬁed in accordance
with Speciﬁcation A568/A568M Table X2.3, the grade shall be
furnished as; CS Type B – 1008, DS Type A – 1005, and so
forth,
5.1.2.2 When a chemistry grade is speciﬁed in accordance
with Speciﬁcation A568/A568M Table X2.1, with no reference
to CS Type A, CS Type B, DS Type A, DS Type B, or SFS, the
grade shall be furnished as CS – 1005, CS – 1008, CS – 1020
and so forth, and meet chemistry speciﬁed in accordance with
Speciﬁcation A568/A568M Table X2.1,
5.1.2.3 When a type is not speciﬁed for CS or DS and there
is no reference to a chemistry grade such as 1005, 1006, and so
forth, Type B will be furnished (see 4.1),
5.1.2.4 When SFS is speciﬁed, a chemistry grade designa-
tion shall also be speciﬁed in accordance with Speciﬁcation
A568/A568M Table X2.1 (that is, 1010, 1020, and so forth), or
carbon & manganese in accordance with Table X2.2 (that is, C
0.12–0.18 %, Mn 0.50–0.80 %, and so forth). The characteris-
tics identifying the enhanced formability or mechanical prop-
erties shall be speciﬁed by the user or purchaser, on the
purchase order. If requested, the producer or seller shall
provide veriﬁcation of special practices or mechanical proper-
ties supporting enhanced formability.
5.1.2.5 When a class is not speciﬁed for HSLAS, Class 1
will be furnished (see 4.1),
5.1.2.6 When a type is not speciﬁed for SS Grades, Type 1
will be furnished (see 4.1),
5.1.2.7 When a type is not speciﬁed for UHSS, Type 1 shall
be furnished (see 4.1).
5.1.3 Finish (see 9.1)
5.1.4 Type of edge (see 9.3),
5.1.5 Oiled or not oiled, as required (see 9.2),
5.1.6 Dimensions (thickness, width, and whether cut lengths
or coils),
NOTE 1—Not all producers are capable of meeting all the limitations of
the thickness tolerance tables in Speciﬁcations A568/A568M and A749/
A749M. The purchaser should contact the producer prior to placing an
order.
5.1.7 Coil size (inside diameter, outside diameter, and maxi-
mum weight),
5.1.8 Copper bearing steel (if required),
5.1.9 Quantity,
5.1.10 Application (part identiﬁcation and description),
5.1.11 A report of heat analysis will be supplied, if
requested, for CS, DS and SFS. For materials with required
mechanical properties, SS, HSLAS, HSLAS-F, and UHSS, a
report is required of heat analysis and mechanical properties as
determined by the tension test, and
5.1.12 Special requirements (if any).
5.1.12.1 When the purchaser requires thickness tolerances
for
3
⁄
8
in. [10 mm] minimum edge distance (see Supplementary
Requirement in Speciﬁcation A568/A568M), this requirement
shall be speciﬁed in the purchase order or contract.
5.1.12.2 Tighter requirements can be speciﬁed based on
agreement between seller and purchaser.
NOTE 2—A typical ordering description is as follows: ASTM A1011-
XX, hot rolled steel sheet, CS Type A, pickled and oiled, cut edge, 0.075
by 36 by 96 in., 100 000 lb, for part no. 6310, for shelf bracket.
Or, ASTM A1011M-XX, hot rolled steel sheet, CS Type B, pickled and
oiled, cut edge, 3.7 by 117 mm by coil, ID 600 mm, OD 1500 mm, max
weight 10 000 kg, 50 000 kg, for upper control arm.
6. General Requirements for Delivery
6.1 Material furnished under this speciﬁcation shall con-
form to the applicable requirements of the current edition of
Speciﬁcation A568/A568M for sheets and Speciﬁcation A749/
A749M for strip, unless otherwise provided for herein.
7. Chemical Composition
7.1 The heat analysis of the steel shall conform to the
chemical composition requirements of the appropriate desig-
nation shown in Table 1 for CS, DS and SFS, and Table 2 for
SS, HSLAS, HSLAS-F, and UHSS.
7.1.1 A report of heat analysis will be supplied, if requested,
for CS and DS. For materials with required mechanical
properties, SS, HSLAS, HSLAS-F, and UHSS, a report of heat
analysis is required.
7.2 Each of the elements listed in Table 1,Table 2, and
Speciﬁcation A568/A568M Table X2.3 shall be included in the
report of the heat analysis. When the amount of copper, nickel,
chromium, or molybdenum is less than 0.02 %, report the
analysis as <0.02 % or the actual determined value. When the
amount of vanadium, columbium, or titanium is less than
0.008 %, report the analysis as <0.008 % or the actual deter-
mined value. When the amount of boron is less than 0.0005 %,
report the analysis as <0.0005 % or the actual determined
value.
7.3 Sheet steel grades deﬁned by this speciﬁcation are
suitable for welding if appropriate welding conditions are
selected. For certain welding processes, if more restrictive
composition limits are desirable, they shall be speciﬁed at the
time of inquiry and conﬁrmed at the time of ordering.
8. Mechanical Properties
8.1 CS and DS:
8.1.1 Typical, nonmandatory mechanical properties for CS
and DS for all grades speciﬁed in Table 1 and Speciﬁcation
A568/A568M Table X2.3 are found in Table 3.
8.1.2 The material represented by all grades speciﬁed in
Table 1 and Speciﬁcation A568/A568M Table X2.3 shall be
capable of being bent at room temperature in any direction
through 180° ﬂat on itself without cracking on the outside of
the bent portion (see the section on bend test in Test Methods
and Deﬁnitions A370). The bend test is not a requirement of
delivery. However, if testing is performed by the purchaser,
material not conforming to the requirement shall be subject to
rejection.
8.2 SS, HSLAS, HSLAS-F, and UHSS:
8.2.1 The available grades and corresponding mechanical
properties for SS, HSLAS, HSLAS-F, and UHSS are shown in
Table 4.
A1011/A1011M − 23
3

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标签： # 高强度 #低合金 #改型高强度

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ASTM A1011/A1011M-2023 高强度低Standard Specification for Steel, Sheet and Strip,Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability 合金和改型高强度低合金热轧结构碳钢板材和带材规范

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ASTM A1011 - A 1011M - 23 高强度低合金和改型高强度低合金热轧结构碳钢板材和带材规范

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