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.AISI No. 616 is a hardenable martensitic type stainless steel recommended for high temperature applications up to 1200 F. It is used for steam turbine blades and buckets, valves, jet engine components, and high temperature bolting.