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.NICKEL 201 is a low carbon version of Nickel 200 recommended for use in the electronic industries for service at temperatures between 600 F and 1200 F.