1.Content of Silicon carbide: Sic 65%, 68%, 70%, 72% 2.Size: 30mm ... x 60mm according to your requirement 3.low content of Sulfu Silicon ... iron output, plays roles on carbon raising, deoxidizing, silicon adding, elevation of temperature etc, and also may ... of molten steel, enhances the output.2, Because silicon carbide element oxidation may produces the reaction heat energy ...