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.EMPIRE CF-3M is a superior stainless steel casting alloy recommended for welded fabrications because of freedom from carbide precipitation. It is equivalent to A. C. I. CF-4M (American Casting Institute designation).