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 TYPE 202 is an austenitic manganese type stainless steel having similar mechanical properties and corrosion resistance as AISI TYPE 302 stainless steel. It is a general purpose, non-hardenable corrosion resisting steel.