ASTM A794 - A 794M - 24 商品级冷轧碳素钢薄板(最高含碳量为0.16%-0.25%)

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Designation: A794/A794M 24
Standard Specification for
Commercial Steel (CS), Sheet, Carbon (0.16 % Maximum to
0.25 % Maximum), Cold-Rolled
1
This standard is issued under the fixed designation A794/A794M; 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 cold-rolled commercial steel
(CS) sheet in coils and cut lengths, in which the maximum of
the specified carbon range is over 0.15 % and not over 0.25 %,
and the maximum of the specified manganese range is not over
0.90 %. This material is ordered to chemical composition.
1.2 This specification is not applicable to the steels covered
in Specifications A109/A109M and A1008/A1008M.
1.3 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.
1.4 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
A109/A109M Specification for Steel, Strip, Carbon (0.25
Maximum Percent), Cold-Rolled
A568/A568M Specification for Steel, Sheet, Carbon,
Structural, and High-Strength, Low-Alloy, Hot-Rolled and
Cold-Rolled, General Requirements for
A749/A749M Specification for Steel, Strip, Carbon and
High-Strength, Low-Alloy, Hot-Rolled, General Require-
ments for
A1008/A1008M Specification for Steel, Sheet, Cold-Rolled,
Carbon, Structural, High-Strength Low-Alloy, High-
Strength Low-Alloy with Improved Formability, Required
Hardness, Solution Hardened, and Bake Hardenable
E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
2.2 Society of Automotive Engineers Standard:
3
J 1086 Numbering Metals and Alloys
3. Ordering Information
3.1 It is the purchaser’s responsibility to specify in the
purchase order all ordering information necessary to purchase
the needed material. Examples of such information, include but
are not limited to, the following:
3.1.1 ASTM specification number and year of issue,
3.1.2 Name of material (cold-rolled commercial steel (CS)
sheet),
3.1.3 Grade designation or chemical composition or both,
3.1.4 Copper-bearing steel (if required),
3.1.5 Finish; indicate unexposed with matte (dull) finish, or
exposed with either matte (dull), commercial bright or luster
finish, as required,
3.1.6 Specify oiled or not oiled, as required,
3.1.7 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 Specification A568/A568M. The pur-
chaser should contact the producer regarding possible limitations prior to
placing an order.
3.1.8 Coil size (must include inside diameter, outside
diameter, and maximum mass),
3.1.9 Quantity,
3.1.10 Application (show part identification and
description),
3.1.11 Cast or heat analysis report (request, if required), and
3.1.12 Special requirements (if any).
3.1.12.1 When the purchaser requires thickness tolerances
for
3
8
in. [10 mm] minimum edge distance (see Supplementary
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
A01.19 on Steel Sheet and Strip.
Current edition approved May 1, 2024. Published May 2024. Originally
approved in 1982. Last previous edition approved in 2018 as A794/A794M 18.
DOI: 10.1520/A0794_A0794M-24.
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.
3
Available from Society of Automotive Engineers (SAE), 400 Commonwealth
Dr., Warrendale, PA 15096-0001, http://www.sae.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
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
Requirement in Specification A568/A568M), this requirement
shall be specified in the purchase order or contract.
NOTE 2—A typical ordering description is as follows: ASTM A794-XX,
Cold-Rolled Commercial Steel (CS), Grade 1018, Exposed, Matte Finish,
Oiled, 0.030 in. by 36 in. by 96 in., 100 000 lb., for Part No. 5226 Steel
Shelving, or, ASTM A794M-XX, Cold-Rolled Commercial Steel (CS),
Grade 1018, Exposed, Matte Finish, Oiled 0.75 mm by 915 mm by
2438 mm, 45,000 kg, for Part N. 5226 Steel Shelving.
4. Manufacture
4.1 Condition—The material shall be furnished in the an-
nealed and temper-rolled condition but may be supplied full
hard if specified.
5. Chemical Composition
5.1 The cast or heat (formerly ladle) analysis of the steel
shall conform to the chemical requirements shown in Table 1,
or chemical compositions can be specified from carbon 0.16 %
maximum to 0.25 % maximum, inclusive, and manganese
0.90 % maximum, inclusive, which conforms to the standard
chemical ranges and limits tables in the Appendix of Specifi-
cation A568/A568M.
5.1.1 Unspecified elements may be present. Limits on ele-
ments shall be as stated in Table 2.
5.1.1.1 Each of the elements listed in Table 2 shall be
included in the report of the heat analysis. When the amount of
copper, nickel, chromium, or molybdenum is less than 0.02 %,
the analysis may be reported as <0.02 %. When the amount of
vanadium or columbium (niobium) is less than 0.008 %, the
analysis may be reported as <0.008 %.
5.2 Where material is used for fabrication by welding, care
must be exercised in selection of the chemical composition to
assure compatibility with the welding process and its effects on
altering the properties of the steel.
6. Bending Properties
6.1 The minimum forming radius (radii) which steel cov-
ered by this specification can be expected to sustain is listed in
the appendix and is discussed in more detail in Specifications
A568/A568M and A749/A749M. When tighter bend radii are
required, or curved or offset bends are involved, or when
stretching or drawing are also a consideration, the producers
shall be consulted.
7. General Requirements for Delivery
7.1 Material furnished under this specification shall con-
form to the applicable requirements of the current edition of
Specification A568/A568M, unless otherwise provided herein.
8. Keywords
8.1 carbon steel sheet; carbon steel strip; cold rolled steel
sheet; cold rolled steel strip; steel sheet; steel strip
TABLE 1 Typical Grade Designations and Chemical
Compositions
A
Steel
Designation
No.
Carbon, % Mn, % P, Max, % S, Max, %
1015 0.13–0.18 0.30–0.60 0.030 0.035
1016 0.13–0.18 0.60–0.90 0.030 0.035
1017 0.15–0.20 0.30–0.60 0.030 0.035
1018 0.15–0.20 0.60–0.90 0.030 0.035
1020 0.18–0.23 0.30–0.60 0.030 0.035
1021 0.18–0.23 0.60–0.90 0.030 0.035
1023 0.20–0.25 0.30–0.60 0.030 0.035
A
Copper, when specified, shall have a minimum content of 0.20 % by cast or heat
analysis.
TABLE 2 Limits on Additional Elements (see 5.1.1)
Copper,max %
A
Nickel, max %
A
Chromium, max %
AB
Molybdenum, max %
AB
Vanadium, max %
Columbium (Niobium),
max %
C
Heat analysis
Product analysis
Heat analysis
Product analysis
Heat analysis
Product analysis
Heat analysis
Product analysis
Heat analysis
Product analysis
Heat analysis
Product analysis
0.20
0.23
0.20
0.23
0.15
0.19
0.06
0.07
0.008
0.018
0.008
0.018
A
The sum of copper, nickel, chromium, and molybdenum shall not exceed 0.50 %
on heat analysis. When one or more of these elements are specified, the sum does
not apply; in which case, only the individual limits on the remaining unspecified
elements will apply.
B
The sum of chromium and molybdenum shall not exceed 0.16 % on heat
analysis. When one or more of these elements are specified, the sum does not
apply; in which case, only the individual limits on the remaining unspecified
elements will apply.
C
Columbium and niobium are interchangeable names for the same element, and
both names are acceptable for use in A01 specifications.
A794/A794M − 24
2
APPENDIX
(Nonmandatory Information)
X1. BENDING PROPERTIES
SUMMARY OF CHANGES
Committee A01 has identified the location of selected changes to this standard since the last issue
(A794/A794M 18) that may impact the use of this standard. (Approved May 1, 2024.)
(1) Added alternate name of niobium to Table 2 and section
5.1.1.1.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned
in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk
of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and
if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards
and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the
responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should
make your views known to the ASTM Committee on Standards, at the address shown below.
This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,
United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above
address or at 610-832-9585 (phone), 610-832-9555 (fax), or service@astm.org (e-mail); or through the ASTM website
(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222
Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http://www.copyright.com/
TABLE X1.1 Suggested Minimum Inside Radii for Cold Bending
A
NOTE 1—(t) equals a radius equivalent to the steel thickness.
NOTE 2—The suggested radii should be used as minimums for 90°
bends in actual shop practice.
Maximum of Specified
Manganese Range, %
Minimum Inside Radius
for Cold Bending
To 0.60 incl.
Over 0.60 to 0.90 incl.
1
1
2
t
2t
A
Material that does not perform satisfactorily, when fabricated in accordance with
the above requirements, may be subject to rejection pending negotiation with the
steel supplier.
A794/A794M − 24
3
摘要:

ASTM A794/A794M-2024 Standard Specification for Commercial Steel (CS),Sheet, Carbon (0.16% Maximum to 0.25% Maximum),Cold-Rolled 商品级冷轧碳素钢薄板(最高含碳量为0.16%-0.25%)

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作者:Carl 分类:国外协会 价格:12星币 属性:3 页 大小:209.03KB 格式:PDF 时间:2024-09-02

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