View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.BETHLEHEM RQ-100A is a heat-treated alloy steel having 100000 psi yield strength through 11/4-in. thickness, in combination with good toughness, abrasion resistance and weldability. It is engineered specifically for structural applications such as earth moving equipment,buildings, bridges, and pressure vessels where high strength is required.