Havar® is a heat treatable cobalt based alloy that provides very high strength at high temperatures. Havar® has excellent corrosion resistance and is non-magnetic. Forming cold rolled Havar® requires a large radius equal to 8 times the material thickness prior to age hardening. Havar® can be joined using both welding and soldering techniques. Ultimate endurance life is achieved by heat treating the alloy at 540C after 80% cold work. The alloy will retain 75% of room temperature strength up to 500C. Applications include pressure diaphragms, power springs, gap spacers in magnetic heads, target foils in nuclear physics and the production of radioisotopes for the detection and treatment of cancer.