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.ALMAR 25 is a mar-aging alloy steel having an excellent combination of strength and toughness particularly in the presence of notches or cracks. It is recommended for applications such as fuel rocket cases and aircraft landing gears.