HAFNIUM is a commercially available refractory metal which has outstanding corrosion resistance, good mechanical properties, and is readily amenable to standard fabrication techniques. These characteristics, coupled with its high thermal-neutron cross section, high-temperature allotropic transformation, and excellent electrical properties, have made it of increasing interest to design engineers in a variety of fields. This datasheet provides information on composition, physical properties, microstructure, elasticity, and tensile properties. It also includes information on corrosion resistance as well as machining and joining. Filing Code: HF-1. Producer or source: Teledyne Wah Chang Albany.