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.Croloy 12 Al is a heat and corrosion resisting steel which is non-hardenable by heat treatment. It has good oxidation resistance up to 1250 F. The alloy has found considerable use in chemical installation and petroleum refineries because of its good oxidation and corrosion resistance and its good weldability.