Item |
High corundum brick |
Wearable corundum brick |
Mullite corundum brick |
Wearable corundum brick |
Bulk density/cm3 |
3.0 |
2.9 |
2.9 |
2.7 |
Compression strength(under normal temperature) kg/cm2 |
≥400 |
≥600 |
≥250 |
≥200 |
Reheating linear shrinkage % |
1650Cx3 hours≤0.5 |
1650Cx3 hours≤0.5 |
1600Cx3 hours≤0.5 |
1500Cx3 hours≤0.5 |
Al2o3 content % |
≥ 95 |
≥ 93 |
≥ 85 |
≥ 93 |
Fe2o3 content % |
≤0.5 |
≤0.5 |
≤0.5 |
≤0.5 |
The max working temperature |
1750C(SK32) |
1750C(SK32) |
1750C(SK32) |
1600C(SK24) |
Bulk density/cm3: 2.9
Compression strength kg/cm2: >250
Reheating linear shrinkage %: 1650Cx3 hours≤0.5
Al2o3 content %:≥85
Fe2o3 content %:≤0.5