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.OSM Weldalloy Alloys are quenched and tempered structural steel plates that allow increased thickness to ASTM A656 or greater strength designs to the 100,000 psi minimum yield strength of ASTM A514.