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.HASTELLOY Alloy G is a nickel-base alloy recommended for tough environmental applications. It resists hot sulphuric and phosphoric acid service, and is also resistant to stress-corrosion cracking. This alloy is covered by U.S. Pat. No. 2,777,766.