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.DuraFoil is a heat-resistant ferritic stainless steel, belonging to the FeCrAl alloy or FeCr alloy family. It has excellent oxidation resistance for high temperature applications.