1. Resistant to corrosion, 2. good thermal resistance cycle, 3. high strength, high heat conductivity. Carborundum refractories ItemsSiO2 Integrate carborundumMullite integrate carborundumCorundum carborundumHigh-Al carborundumSillimanite carborundumSiC, %80~9060~8560~7035~5540~50AP, %17~2018~2118~2118~2018~21Refractoriness, °C>1790>1790>1790>1790>1790RUT, °C16001600160015501500CCS, ...