... carbide abrasive grain. Description:The high density black silicon carbide fused by heating high purity silicon ... 2500 0C. With high density, big crystal, and good purity, it is widely used in abrasive, refractory ... and ceramic industry.CF-16 is a black, friable, medium bulk density silicon carbide abrasive grain ... 360, 400, 500, 600, 800, 1000, 1200. Black Silicon Carbide used for Ceramic