1. Scope
1.1 This specification covers carbon-manganese steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of buildings and for general structural purposes.
1.2 Material under this specification is available in two grades:
| Grade | Yield Strength,ksi [MPa] | Thickness |
| 50 [345] | 50 [345] | Plates to 1 in. [25 mm] thick to 12 in. [305 mm] wide |
| | Bars to 3 1/2 in. [90 mm] |
| | Shapes-Groups 1 & 2 |
| 55 [380] | 55 [380] | Plates to 1 in. [25 mm] thick to 12 in. [305 mm] wide |
| | Bars to 3 in. [75 mm] |
| | Shapes-Groups 1 & 2 |
1.3 When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.
1.4 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
Keywords
bars; bolted construction; carbon; frames; metal building systems; plates; riveted construction; shapes; steel; structural steel; trusses; welded construction; Carbon steel bars/shapes--specifications; Carbon steel plate--specifications; Framework; High-strength structural steel--specifications; Metal buildings; Open-hearth steel--specifications; Riveted construction--specifications; Steel bars and shapes--specifications; Structural steel (SS)--specifications; Bolted construction materials/applications--specifications; Carbon-manganese steel--specifications; Structural steel (SS) bars--specifications; Structural steel (SS) plate--specifications; Structural steel (SS) shapes--specifications; Trusses; Welded steel materials/applications--specifications;
ICS Code
ICS Number Code 77.140.10 (Heat-treatable steels)
DOI: 10.1520/A0529_A0529M-01
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Citing ASTM Standards
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