Potomac A is a medium carbon, alloy steel that can maintain strength at elevated temperatures up to 1000 F. It is recommended for hot die applications and for structure components where strength at elevated temperatures is important. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: TS-105. Producer or source: Allegheny Ludlum Corporation.