... , agate, electrical ceramic, quartz products, rock. Green silicon carbide also used as higher-grade refractory materials, electrical ... elements for electrical appliances. Chemical Index of Green Silicon Carbide for Concretion GrinderBrandGrit SizeChemical Composition(%)SIC(min) ... .70W7-W594.00.500.70Chemical Index of Green Silicon Carbide for Coating GrinderBrandGrit SizeChemical Composition(%)SIC(min ...