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.Nicrofer 3228 NbCe is a heat-resistant alloy with additions of niobium, cerium, silicon, and aluminum to resist oxidation. The alloy is licensed by the German T¿V for pressure vessels and steam generators to 1000 C (1830 F).