ASTM A1008/A1008M-00

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 1008/A 1008M – 00
Standard Specification for
Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength
Low-Alloy and High-Strength Low-Alloy with Improved
Formability
This standard is issued under the fixed designation A 1008/A 1008M; 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 tion, refer to Terminology A 941.
3.1.2 stabilization—The addition of one or more nitride or
1.1 This specification covers cold rolled structural, high-
carbide forming elements, or both, such as titanium and
strength low-alloy, and high-strength low-alloy with improved
columbium, to control the level of the interstitial elements of
formability steel sheet, in coils and cut lengths.
carbon and nitrogen in the steel.
1.2 Cold rolled steel sheet is available in the designations as
3.1.2.1 Discussion—Stabilizing improves formability and
listed in 4.1.
increases resistance to aging.
1.3 This specification does not apply to steel strip as
3.1.3 vacuum degassing—a process of refining liquid steel
described in Specification A 109.
in which the liquid is exposed to a vacuum as part of a special
1.4 The values stated in either inch-pound units or SI units
technique for removing impurities or for decarburizing the
are to be regarded separately as standard. Within the text, the
steel.
SI units are shown in brackets. The values stated in each
3.2 Definitions of Terms Specific to This Standard:
system are not exact equivalents; therefore, each system must
3.2.1 aging—loss of ductility with an increase in hardness,
be used independently of the other.
yield strength, and tensile strength that occurs when steel,
2. Referenced Documents
which has been slightly cold worked (such as by temper
rolling) and is stored for some time.
2.1 ASTM Standards:
3.2.1.1 Discussion—Aging increases the tendency of a steel
A 109 Specification for Steel, Strip, Carbon, Cold Rolled
to exhibit stretcher strains and fluting.
A 366/A 366M Specification for Steel, Sheet, Carbon,
Cold-Rolled, Commercial Quality
4. Classification
A 370 Test Methods and Definitions for Mechanical Testing
2 4.1 Cold Rolled steel sheet is available in the following
of Steel Products
designations:
A 568/A 568M Specification for Steel, Sheet, Carbon, and
4.1.1 Commercial Steel (CS Types A, B, and C),
High-Strength, Low-Alloy, Hot Rolled and Cold Rolled,
4.1.2 Drawing Steel (DS Types A and B),
General Requirements for
A 620/A 620M Specification for Steel, Sheet, Carbon,
NOTE 1—CS Type B and DS Type B describe the most common
Drawing Quality, Special Killed, Cold-Rolled product previously included, respectively, in Specifications A 366/
A 366M and A 620/A 620M.
A 941 Terminology Relating to Steel, Stainless, Related
Alloys, and Ferroalloys
4.1.3 Deep Drawing Steel (DDS),
E 517 Test Method for Plastic Strain Ratio
4.1.4 Extra Deep Drawing Steel (EDDS),
E 646 Test Method for Tensile Strain-Hardening Expo-
4.1.5 Structural Steel (SS grades 25[170], 30[205], 33[230]
nents
Types 1 and 2, 40[275] Types 1 and 2, and 80[550]),
4.1.6 High-Strength Low-Alloy Steel (HSLAS, in classes 1
3. Terminology
and 2, in grades 45[310], 50[340]. 55[380], 60[410], 65[450],
3.1 Definitions:
and 70[480] in Classes 1 and 2), and
3.1.1 For definitions of other terms used in this specifica-
4.1.7 High-Strength Low-Alloy Steel with Improved Form-
ability (HSLAS-F grades 50[340], 60[410], 70[480], and
This specification is under the jurisdiction of ASTM Committee A01 on Steel, 80[550]).
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
4.1.7.1 HSLAS-F steel has improved formability when
A01.19 on Steel Sheet and Strip.
compared to HSLAS. The steel is fully deoxidized, made to
Current edition approved Aug. 10, 2000. Published October 2000.
fine grain practice and includes microalloying elements such as
Annual Book of ASTM Standards, Vol 01.03.
Discontinued; see 2000 Annual Book of ASTM Standards, Vol 01.03.
columbium, vanadium, zirconium, etc. The steel may be
Annual Book of ASTM Standards, Vol 01.01.
treated to achieve inclusion control.
Annual Book of ASTM Standards, Vol 03.01.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
A 1008/A 1008M
4.2 Cold rolled steel sheet is supplied for either exposed or 5.1.7 Coil size (must include inside diameter, outside diam-
unexposed applications. Within the latter category, cold rolled eter, and maximum weight),
sheet is specified either “temper rolled” or “annealed last”. For 5.1.8 Copper bearing steel (if required),
details on processing, attributes and limitations, and inspection 5.1.9 Quantity,
standards, refer to Specification A 568/A 568M. 5.1.10 Application (part identification and description),
5.1.11 Special requirements (if required), or supplementary
5. Ordering Information
requirement S1 for HSLAS, and
5.1.12 A report of heat analysis will be supplied, if re-
5.1 It is the purchaser’s responsibility to specify in the
quested, for CS, DS, DDS, and EDDS. For materials with
purchase order all ordering information necessary to describe
required mechanical properties, SS, HSLAS, and HSLAS-F, a
the required material. Examples of such information include,
report is required of heat analysis and mechanical properties as
but are not limited to, the following:
determined by the tension test.
5.1.1 ASTM specification number and year of issue,
5.1.2 Name of material and designation (cold rolled steel
NOTE 3—A typical ordering description is as follows: ASTM A 1008-
sheet) (include grade, type, and class, as appropriate, for CS,
XX, cold rolled steel sheet, CS Type A, exposed, matte finish, oiled, 0.035
DS, DDS, EDDS, SS, HSLAS, or HSLAS-F), (see 4.1),
by 30 in. by coil, ID 24 in., OD 48 in., max weight 15 000 lbs, thickness
tolerance Table 18 of Specification A 568/A 568M, 100 000 lb, for part
5.1.2.1 When a type is not specified for CS or DS, Type B
No. 4560, Door Panel.
will be furnished. (see 4.1),
or:
5.1.2.2 When a class is not specified for HSLAS, Class 1
ASTM A 1008M-XX, cold rolled steel sheet, SS grade 275, unexposed,
will be furnished. (see 4.1),
matte finish, oiled, 0.88 mm by 760 mm by 2440 mm, thickness tolerance
5.1.2.3 When a type is not specified for SS33[230] and
Table A1.15 of Specification A 568/A 568M, 10 000 kg, for shelf bracket.
SS40[275], Type 1 will be furnished (see 4.1),
6. General Requirements for Delivery
5.1.3 Classification (either exposed, unexposed, temper
rolled, or annealed last) (see 4.2),
6.1 Material furnished under this specification shall con-
5.1.4 Finish (see 9.1),
form to the applicable requirements of the current edition of
5.1.5 Oiled, or not oiled, as required, (see 9.2)
Specification A 568/A 568M unless otherwise provided herein.
5.1.6 Dimensions (thickness, thickness tolerance table (see
7. Chemical Composition
5.1.6.1), width, and whether cut lengths or coils),
5.1.6.1 As agreed upon between the purchaser and the
7.1 The heat analysis of the steel shall conform to the
producer, material ordered to this specification will be supplied chemical composition requirements of the appropriate desig-
to meet the applicable thickness tolerance table shown in
nation shown in Table 1 for CS, DS, DDS, and EDDS and in
Specification A 568/A 568M, Table 2 for SS, HSLAS, and HSLAS-F.
7.2 Each of the elements listed in Table 1 and Table 2 shall
NOTE 2—Not all producers are capable of meeting all the limitations of
be included in the report of the heat analysis. When the amount
the thickness tolerance tables in Specification A 568/A 568M. The pur-
of copper, nickel, chromium, or molybdenum is less than
chaser should contact the producer regarding possible limitations prior to
placing an order. 0.02 %, the analysis may be reported as < 0.02 %. When the
A
TABLE 1 Chemical Composition
For Cold Rolled Steel Sheet Designations CS, DS, DDS, and EDDS
Composition, % Heat Analysis
(Element Maximum Unless Otherwise Shown
B B B,C B
Designation C Mn P S Al Si Cu Ni Cr Mo VCb Ti N
D,E,F,G H I
CS Type A 0.10 0.60 0.030 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.008 .
D H I
CS Type B 0.02 to 0.60 0.030 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.008 .
0.15
D,E,F,G H I
CS Type C 0.08 0.60 0.10 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.008 .
E,J I
DS Type A 0.08 0.50 0.020 0.030 0.01 min . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.008 .
I
DS Type B 0.02 to 0.50 0.020 0.030 0.02 min . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.008 .
0.08
F,G I
DDS 0.06 0.50 0.020 0.025 0.01 min . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.008 .
K
EDDS 0.02 0.40 0.020 0.020 0.01 min . . . 0.10 0.10 0.15 0.03 0.008 0.10 0.15 . . .
A
Where an ellipsis (. . .) appears in the table, there is no requirement, but the analysis result shall be reported.
B
The sum of copper, nickel, chromium, and molybdenum shall not exceed 0.50 % on heat analysis. When one or more of these elements is specified by the purchaser,
the sum does not apply, in which case only the individual limits on the remaining elements shall apply.
C
Chromium is permitted, at the producer’s option, to 0.25 % maximum when the carbon content is less than or equal to 0.05 %. In such case the limit on the sum of
the four elements in Footnote B does not apply.
D
When an aluminum deoxidized steel is required for the application, Commercial Steel (CS) may be ordered to a minimum of 0.01 % total aluminum.
E
Specify Type B to avoid carbon levels below 0.02 %.
F
May be furnished as a vacuum degassed or chemically stabilized steel, or both, at the producer’s option.
G
For carbon levels less than or equal to 0.02 %, columbium or titanium, or both, may be used as stabilizing elements at the producer’s option. In such cases, the
applicable limit for columbium shall be 0.10 % max. and the limit on titanium shall be 0.15 % max.
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
Except for EDDS, titanium is permitted, at producer’s option, to 0.025 % provided the ratio of % titanium to % nitrogen does not exceed 3.4.
J
DS Type A may be furnished as a vacuum degassed steel, at the producers option.
K
Shall be furnished as a vacuum degassed and stabilized steel.
A 1008/A 1008M
A
TABLE 2 Chemical Composition
For Cold Rolled Steel Sheet Designations SS, HSLAS, and HSLAS-F
% Heat Analysis, Element Maximum unless otherwise shown
B,C B B B
Designation C Mn P S Al Si Cu Ni Cr Mo VCb N
SS:
Grade 25 [170] 0.20 0.60 0.035 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 . . .
Grade 30 [205] 0.20 0.60 0.035 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 . . .
Grade 33 [230] Type 1 0.20 0.60 0.035 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 . . .
Grade 33 [230] Type 2 0.15 0.60 0.20 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 . . .
Grade 40 [275] Type 1 0.20 0.90 0.035 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 . . .
Grade 40 [275] Type 2 0.15 0.60 0.20 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 . . .
Grade 80 [550] 0.20 0.60 0.035 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 . . .
D
HSLAS:
Grade 45 [310] Class 1 0.22 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min . . .
Grade 45 [310] Class 2 0.15 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min . . .
Grade 50 [340] Class 1 0.23 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min . . .
Grade 50 [340] Class 2 0.15 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min . . .
Grade 55 [380] Class 1 0.25 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min . . .
Grade 55 [380] Class 2 0.15 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min . . .
Grade 60 [410] Class 1 0.26 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min . . .
Grade 60 [410] Class 2 0.15 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min 0.020
Grade 65 [450] Class 1 0.26 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min 0.012
Grade 65 [450] Class 2 0.15 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min 0.020
Grade 70 [780] Class 1 0.26 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min 0.012
Grade 70 [780] Class 2 0.15 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.01 min 0.005 min 0.020
E
HSLAS-F:
Grade 50[340], 60[410],
70[480], and 80[550] 0.15 1.65 0.020 0.025 . . . . . . 0.20 0.20 0.15 0.06 . . . . . . . . .
A
Where an ellipsis (. . .) appears in the table, there is no requirement but, the analysis shall be reported.
B
The sum of copper, nickel, chromium, and molybdenum shall not exceed 0.50 %. When one or more of these elements are specified by the purchaser, the sum does
not apply, in which case, only the individual limits on the remaining unspecified elements will apply.
C
When copper is specified, the copper limit is a minimum requirement. When copper steel is not specified, the copper limit is a maximum requirement.
D
For HSLAS steels, columbium and vanadium may be added singly or in combination.
E
These steels shall also contain one or more of the following elements: Vanadium, Titanium, and Columbium. Other alloying elements may be present, but are not
required.
amount of vanadium, columbium, or titanium is less than cracking on the outside of the bent portion (see Section 14 of
0.008 %, the analysis may be reported as < 0.008 %. Test Methods and Definitions A 370).
7.3 When the steel is used in welded applications, the 8.1.3 Sheet of these designations except for EDDS may be
welding procedure shall be suitable for the steel chemistry and subject to aging dependent upon processing factors such as the
the intended service. method of annealing (continuous annealing or box annealing),
and chemical composition. For additional information on
8. Mechanical Properties
aging, see Appendix X1 of Specification A 568/A 568M.
8.1 CS, DS, DDS, and EDDS: 8.1.4 EDDS steel is stabilized to be non aging and so is not
8.1.1 Typical nonmandatory mechanical properties for CS, subject to stretcher strains and fluting. Other steels may be
DS, DDS and EDDS are shown in Table 3. processed to be non aging; please consult your supplier.
8.1.2 The material shall be capable of being bent, at room 8.2 SS, HSLAS and HSLAS-F:
temperature, in any direction through 180° flat on itself without 8.2.1 The available strength grades for SS, HSLAS and
A
TABLE 3 Typical Ranges of Mechanical Properties
B
(Nonmandatory)
For Cold Rolled Steel She
...