刚玉莫来石
Corundum-Mullite Brick
项目 Ltem | 烧结莫来石砖 | 刚玉莫来石砖 Corundum-Mullite Brick |
AL2O3% | ≥75 | ≥80 |
SiO2% | ≤18 | ≤18 |
Fe2O3% | ≤0.8 | ≤0.3 |
体积密度g/cm3 Bulk density | ≥2.7 | ≥2.8 |
显气孔率% Apparent porosity | ≤21 | ≤18 |
常温耐压强度MPa Cold crushing strength | ≥85 | ≥100 |
荷重软化开始温度℃(0.2MPa ,0.6%) Refractoriness under load | ≥1650 | ≥1700 |
主要用于钢铁、电子、石油化工、化肥、有色、耐火材料等行业窑炉的关键部位