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.The high chromium, molybdenum, and nitrogen contents of alloy Uranus B25 (also referred to as UR B25) and its pitting resistance equivalent number (PREN) of >=42 explain why the grade is very resistant to localized corrosion even in acidified oxidizing environments. The alloy has also been used for seawater applications.