The green silicon carbide is made from petroleum coke and high-quality silica as the main raw materials, and salt is added as the additive. It is smelted in a resistance furnace at high temperature. The crystallized product has high purity and high hardness, and its hardness is between corundum and diamond, mechanical Strength Higher Than Corundum. Suitable for processing hard alloy, glass, ceramics, alloy steel and non-metallic materials, but also for List of semiconductor materials, far infrared source village and so on. It is suitable for grinding workpieces which are easily deformed by heat. It is similar to single crystal corundum grinding wheel, but its performance is different.