ASTM A980-97

Standard Specification for Steel, Sheet, Carbon, Ultra High Strength Cold Rolled

SCOPE
1.1 This specification covers a cold rolled ultra high strength carbon steel sheet in coils or cut lengths. The product is available in four strength levels. the steel's strength is obtained by water quenching from an austenitic temperature resulting in a martensitic microstructure. This product is intended for miscellaneous applications where ultra high strength, weight saving, and good weldability are important.

General Information

• Status: Historical
• Publication Date: 09-Nov-1997
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.19 - Steel Sheet and Strip

Relations

• Replaced By: ASTM A980-97(2003) - Standard Specification for Steel, Sheet, Carbon, Ultra High Strength Cold Rolled
• Effective Date: 10-Apr-2003

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 980 – 97
Standard Specification for
Steel, Sheet, Carbon, Ultra High Strength Cold Rolled
This standard is issued under the fixed designation A 980; 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.
TABLE 1 Chemical Requirements
1. Scope
Composition - Weight % Heat Analysis
1.1 This specification covers a cold rolled ultra high
Element Grade
strength carbon steel sheet in coils or cut lengths. The product
130 160 190 220
is available in four strength levels. The steel’s strength is
obtained by water quenching from an austenitic temperature Carbon, max 0.10 0.15 0.23 0.28
Manganese, max 0.60 0.60 0.60 0.60
resulting in a martensitic microstructure. This product is
Phosphorus, max 0.030 0.030 0.030 0.030
intended for miscellaneous applications where ultra high
Sulfur, max 0.035 0.035 0.035 0.035
strength, weight saving, and good weldability are important.
Aluminum, min 0.01 0.01 0.01 0.01
2. Referenced Documents
2.1 ASTM Standards: 4.2 Annealing—The material shall be continuous annealed
A 568/A 568M Specification for Steel, Sheet, Carbon, and to austenitic temperatures and water quenched.
High-Strength Low-Alloy, Hot-Rolled and Cold Rolled,
2 5. General Requirements
General Requirements for
5.1 Materials furnished under this specification shall con-
3. Ordering Information
form to the applicable requirements of the current edition of
3.1 It is the purchaser’s responsibility to specify in the Specification A 568/A 568M unless otherwise provided herein.
purchase order all ordering information necessary to purchase
6. Chemical Composition
the needed material. Examples of such information include, but
6.1 The cast or heat analysis shall conform to the require-
are not limited to:
3.1.1 ASTM specification number and year of issue, ments prescribed in Table 1 and Table 2.
6.1.1 Each of the elements listed in Table 2 shall be included
3.1.2 Name of material (cold rolled ultra high strength steel
sheet), in the report of the cast or heat analysis. Where the amount of
copper nickel, chromium or molybdenum is less than 0.02 %,
3.1.3 Grade (see Table 1),
3.1.4 Specify oiled or not oiled as required, the analysis may be reported as < 0.02 %. When the amount of
vanadium or columbium is less than 0.008 %, the analysis may
3.1.5 Dimensions (thickness, width and whether cut lengths
or coils), be reported as < 0.008 %.
3.1.6 Coil size (must include inside diameter, outside diam-
7. Mechanical Properties
eter and maximum mass),
3.1.7 Quantity, 7.1 Tension Tests:
7.1.1 Requirements—Materials as represented by the test
3.1.8 Application (show part identification and description),
specimen shall conform to the tensile requirements specified in
3.1.9 Special Requirements (if required), and
Table 3.
3.1.10 Cast or heat analysis report (request if required).
7.1.2 Number of Tests—Two tests shall be made from each
4. Materials and Manufacture
heat or from each lot of 50 tons. When the amount of finished
material from a heat or lot is less than 50 tons, one test shall be
4.1 Melting Practice—This sheet shall be produced from
aluminum killed steel. made. When material rolled from one heat differs by 0.050 in.
or more in thickness, one tension test shall be made from the
thickest and thinnest material regardless of the weight repre-
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
sented.
Stainless Steel,
...