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.UNS S41003 is a newly designed, low-cost utilitarian martensitic stainless steel to be used for highway and other applications. It is used in the tempered condition at several strength levels.