Kennametal Stellite Stellite® 21

Excellent high temperature strength, high toughness. Solution treat at 1191-1204°C, rapid air cool, age between 538-871°C to increase hardness and strength at the expense of impact and ductility.Applications: turbine blades and vanes, hot die applications, components in combustion or exhaust systems where high strength to 816°C and oxidation to 1093°C is required, used as medical and dental components as well as remelt stock.Corrosion:Excellent resistance to body fluids and has been used for medical implants, dental fixtures, and surgical equipment. Good resistance to cavitation corrosion.Machinability: best in solution treated condition. Carbide tipped tools and low speeds and feeds should be used to avoid work hardening. Lubrication is normally used.Wear: Excellent galling resistance when self-mated or mated with Stellite alloy-6. Resistance to cavitation erosion nearly as good as Stellite alloy 6 and as good or better at high loads. Lower carbon content makes it inferior to Stellite alloy 6 for low stress abrasion resistance.Data provided by the manufacturer, Deloro Stellite Inc.Product of former Deloro Stellite Inc. Simlar to Vitallium, ASTM F75, HS21