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.HAYNES Alloy No. 273 is a nickel-base, hard-facing alloy developed to provide extra life for hot-working equipment such as hot-forging dies, hot-shear blades and hot-extrusion dies. It is deposited by using a composite electrode with nickel-base core and the balance of the alloying elements in the flux coating. Deposits retain their hardness up to 1200 F.