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.ASTM A572 covers low-alloy, high-strength steels of four different yield strength levels, 42, 50, 60 and 65 ksi. Strengthening is provided by small additions of columbium, vanadium, columbium+vanadium or vanadium+nitrogen. Maximum carbon is at 0.21 to 0.26%, depending on thickness, as shown in the tabulation under composition.