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.Timken 17-22-AV is a silicon-chromium-molybdenum-vanadium alloy steel having high resistance to thermal cracking and heat checking, even in a highly hardened condition, and also has good shock resistance at high hardeness levels.