1.silicon carbide SIC 90% min, Fe2O3: 2.0% max, F.C. :2.5% ... .0% max. Size : 1-10mm, 90% min Green Silicon Carbide, Silicon Carbide/powderIntroductionSilicon carbide / Sic micron whisker (Sic-w) has the good chemistry stability, low heated expansion ... hard and the level over 9.5 of Moss's. Sic (silicon carbide) resists heat, grinding & crushing, especially in resisting hot shock wave ...