... carbon steel, high-speed steelCarbideBlack Silicon CarbideSiCSiC>95%2840-3320BlackCrisp, sharp, good thermal and electrical conductivityCast iron, brass, aluminum, non-metalGreen ... sheet wheel for grinding groove, cutting, etc.MetalMGood toughness, formability, strength, self-sharpening is poor.Use to manufactureall kinds ofdiamondabrasive tools. grinding wheels