Executive Cobalt 1 is a cobalt based alloy designed for maximum abrasion, corrosion and heat resistance. Tungsten, coupled with chromium carbides allows Executive Cobalt 1 to resist galling and oxidation and to maintain an effective hardness at operating temperatures up to over 1,000°C (1832°F). This characteristic gives the alloy higher wear resistance accompanied by reductions in the impact and corrosion resistance. The higher hardness also means a greater tendency to check during cooling. The checking tendency may be minimized by closely monitoring preheating, interpass temp and post heating techniques. Executive Cobalt 1 deposits have a low coefficient of friction, and consequently develop a high polish in service.