... with the follow table Granularity rangeSiC ≥Free carbon ≤Fe2O3% ≤Black silicon carbideCrude lump98.50.30.80-10mm98.00.30.8150 ... 60, 70, 80 and 90 can be customized.Features: Black silicon carbide is a nonmetallic mineral product formed with quartz ... and aviation, steelmaking, etc.Black silicon carbide is classified into black silicon carbide sand and black silicon carbide powder.Applications: Silicon ...