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.AVESTA 25-22-2LN is a stronger, more corrosion resistant austenitic stainless than AVESTA 17-15-2.5L (see Alloy Digest SS 501). It is designed for use in equipment subject to the most corrosive conditions encountered in the production of urea. At 570 F (300 C) it has about a 35% higher yield strength than 17-15-2.5L.