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 RQC-60 is a heat-treated carbon steel having up to 60,000 psi yield strength in combination with good notch toughness and excellent weldability. It is engineered specifically for pressure vessels, storage tanks, and structures where low-temperature service is required.