WC-222 Alloy is a tantalum-base alloy developed for applications involving exposure to loads at very high temperatures. It is available in most commercial forms. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength as well as creep. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ta-4. Producer or source: Wah Chang, a Teledyne Corporation.