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.D-H No. 242 is a nickel-chromium high temperature alloy recommended for furnace components, heating elements and conveyor belts. It is also known as Nichrome V Def. #242.