This specification covers structural quality carbon steel plates in standard and non-standard grades furnished to chemical composition requirements. The materials shall conform to carbon, manganese, phosphorus, sulfur, silicon, and copper contents of its specified grade. Values are also given to specify the range, limit, and maximum chemical compositions of the carbon steel.

1.1 This specification covers structural quality carbon steel plates furnished to chemical composition requirements.

1.2 The plates are available in several standard steel grades and non-standard grades.

1.3 The plates are usually furnished in the as-rolled (hot-rolled) condition.

1.4 Supplementary requirements are provided for additional requirements that may be specified on the order.

1.5 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 A 6/A 6M for information on weldability.