Henan Hongtai Kiln Refractory Co.,Ltd. |
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Item | Corundum mullite | Mullite | Cordierite mullite |
MgO | - | 5 | 6.5-8 |
AL2O3% | ≥80 | 43-45 | 40-45 |
SiC% | - | - | - |
SiO2% | ≤18 | 46-48 | ≥46 |
Fe2O3% | ≤0.03 | ≤0.7 | ≤0.03 |
Bulk density g/cm3 | ≥2.7 | ≥2.0 | ≥2.2 |
Apparent porosity ,% ≤ | ≤22 | 21-23 | ≤20 |
Cold crushing strength,MPa ≥ | ≥80 | - | |
Thermal shock resistance(1100℃water cold) | ≥30 | ≥50 | ≥60 |