... bulk density silicon carbide abrasive grain. Description:The high density black silicon carbide fused by heating high purity silicon sand and ... , it is widely used in abrasive, refractory and ceramic industry.CF-16 is a black, friable, medium bulk density silicon carbide abrasive ... ):240, 280, 320, 360, 400, 500, 600, 800, 1000, 1200. Black Silicon Carbide used for Ceramic