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 302B is an austenitic chromium nickel stainless steel which has a resistance to scaling at elevated temperatures superior to Type 302. It is used exclusively for parts which are exposed to high temperatures in service.