Chemical combined high alumina brick's prominent feature is of high-temperature strength, low creep, wear resistant, thermal shock stability and so on. Chemical combined high alumina brick widely used for the electric furnace top, reverberatory furnace, ladle lining , cement kiln firing zone,and the transition zone.
Mark |
Chemical combined with high alumina bricks |
Chemical composition (%) |
Al2O3 |
≥75 |
Al2O3 |
|
CaO |
|
Refractoriness(℃) |
＞1770 |
Density(g·㎝-3) |
≥2.60 |
Apparent porosity (%) |
18~20 |
Compressive strength at normal temperature (MPa) |
≥60 |
Refractoriness under load T0.6（℃）﹚ |
≥1450 |
Thermal shock resistance（1100℃→water cold）[times] |
≥20 |
|