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.UNILOY 19-9DX is a chromium-nickel heat resistant super alloy, capable of withstanding high static and dynamic stresses through at least 1200 deg. F. It has very low strategic index.