| Item | α-β Alumina Brick |
β Alumina Brick |
α Alumina Brick |
|
| Chemical Composition(%) | Al₂ O₃ | 94.0 | 92.0 | 98.0 |
| Na₂ O | 4.0 | 6.5 | 1.0 | |
| Sio₂+CaO+Fe₂O₃ +TiO₂ | ≤2.0 | ≤1.5 | ≤1.0 | |
| Bulk Density(dense part)(g/cm3) | 3.3 | 3.1 | 3.3 | |
| Cold Crushing Strength(Mpa) | 200 | 50 | 200 | |
| Static Resistance to GlassErosion (1350℃*48h,common sodium calcium glass) |
0.2 | -- | -- | |
| Refractoriness Under Load(0.2Mpa) | -- | 1700 | 1700 | |
| Bulk Density | PT | 3.0 | 2.8 | 3.0 |
| WS | 3.2 | 3.0 | 3.2 | |
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