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.ZIRCADYNE 704 is a zirconium-tin-iron-chromium alloy. Zircadyne 704 can contain up to 4.5% hafnium which is naturally present in the zirconium ore. The hafnium is very similar to zirconium metallurgically and chemically and is not detrimental to the corrosion resistance of Zircadyne 704 in chemical applications. Zircadyne 704 exhibits a similar corrosion resistance to unalloyed zirconium (Zircadyne 702) in most applications. The tensile strength of Zircadyne 704 is greater than that of unalloyed zirconium. Zircadyne 704 is used for high-pressure, high-temperature water and steam environments such as those in the nuclear power industry.