Cobalt chromium tungsten (CoCrW) alloy target is silvery white colour, the shape of target material is mostly round, and the purity is 99.9%-99.95%. Early cobalt-chromium-tungsten alloys were produced by non-vacuum smelting and casting processes. Later developed alloys, such as Mar-M509 alloy, are produced by vacuum smelting and vacuum casting because they contain more active elements such as zirconium and boron. Generally, cobalt-chromium-tungsten alloy lacks coherent strengthening phase. Although the strength is low at medium temperature (only 50-75% of nickel-based alloy), it has higher strength, good thermal fatigue resistance and thermal corrosion resistance above 980℃. And abrasion resistance, and has better weldability. In the coating application, it is suitable for making guide vanes and nozzle guide vanes of aviation jet engines, industrial gas turbines, naval gas turbines, and diesel engine nozzle film coatings.