Low cement castable is a kind of refractory castable with low cement content. The amount of calcium aluminate cement added is more than half of that of ordinary refractory castable. It uses part of alumina ultrafine powder to replace part of calcium aluminate cement. It has good fluidity, high density and high strength. It is widely used in furnace linings in steel, glass, ceramics, cement and other industries. · Excellent flowability and high packing density, minimizing porosity. · Enhanced mechanical strength to withstand heavy loads. · Improved refractory performance due to lower cement content.
Used for linings in blast furnaces and hot blast stoves.
Used for linings in glass melting furnaces.
Used for linings in ceramic kilns.
Used for linings in cement rotary kilns.
Low-Cement Castable | ||||
Item | High Alumina | Mullite | Corundum | |
Chemical Composition/% | Al2O3 | 60 | 70 | 86 |
CaO | 1.8 | 1.7 | 1.8 | |
Bulk Density/g/cm³ | 2.45 | 2.65 | 3.00 | |
Cold Crushing Strength，MPa | 110℃*24h | 45 | 50 | 55 |
1100℃*3h | 60 | 65 | 65 | |
Cold Bending Strength，MPa | 110℃*24h | 5.0 | 6 | 8 |
1100℃*3h | 8.0 | 8.5 | 9 | |
Linear Change Rate After Burning PLC，% | 0-+0.8% | 0-+1.0% | ±0.4% | |
Note: Can be customized according to customer requirements, with technical parameters adjustable. | ||||
Used for linings in blast furnaces and hot blast stoves.
Used for linings in glass melting furnaces.
Used for linings in ceramic kilns.
Used for linings in cement rotary kilns.
Low-Cement Castable | ||||
Item | High Alumina | Mullite | Corundum | |
Chemical Composition/% | Al2O3 | 60 | 70 | 86 |
CaO | 1.8 | 1.7 | 1.8 | |
Bulk Density/g/cm³ | 2.45 | 2.65 | 3.00 | |
Cold Crushing Strength，MPa | 110℃*24h | 45 | 50 | 55 |
1100℃*3h | 60 | 65 | 65 | |
Cold Bending Strength，MPa | 110℃*24h | 5.0 | 6 | 8 |
1100℃*3h | 8.0 | 8.5 | 9 | |
Linear Change Rate After Burning PLC，% | 0-+0.8% | 0-+1.0% | ±0.4% | |
Note: Can be customized according to customer requirements, with technical parameters adjustable. | ||||
