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.CRUCIBLE 446 is a non-hardenable (ferritic) chromium stainless steel. It has the highest corrosion and heat-resisting properties of the straight chromium steels. It is magnetic at all times. Typical applications for CRUCIBLE 446 comprise heat-treating equipment, combustion chambers, oil-burner components, stack dampers and thermocouple protection tubes.