ASTM A1039/A1039M-09 - 1.5.2009
 
1. Scope

1.1 This specification covers commercial and structural steel sheet in coils and cut lengths produced by the twin-roll casting process.

1.2 The steel sheet is available in the designations listed in Section 4.

1.3 The material is available in the following sizes:

Thickness—0.027 in. [0.7 mm] to 0.078 in. [2.0 mm]

Width—up to 79 in. [2000 mm]

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.

Note 1—A description of the Twin-Roll Casting Process is included in Appendix X1.

 
2. Referenced Documents

A370-26

Standard Test Methods and Definitions for Mechanical Testing of Steel Products

A941-26a

Standard Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys (Includes all amendments and changes 4/15/2026).

A568/A568M-25a

Standard Specification for Steel, Sheet, Carbon, Structural, and High-Strength Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for (Includes all amendments and changes 12/5/2025).