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.Thermalloy 50 is an austenitic, heat and corrosion resisting alloy recommended for severe service as heat treating equipment for hardening, annealing and carburizing operations. It is resistant to oxidation and carburization at high temperatures, has comparatively good strength at heat treating temperatures and withstands thermal shock.