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.ENDURO HC is a high chromium heat and corrosion resisting steel of the AISI Type 446 grade. It is magnetic and cannot be hardened materially by heat treatment.