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.KHR35C Hi Si is similar to Kubota alloy KHR35C but with added silicon levels to improve carburization resistance. The typical application is ethylene furnace tubing.