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steel ladle used refractory corundum castble
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corundum high strength castable is high-quality wear-resistant high-temperature corundum-based materials, adding corundum powder and alumina powder and other trace elements, and with the right amount of dispersant, coagulant, Stainless steel fiber, according to the strict formula compound, with high temperature strength, wear resistance to erosion, high thermal conductivity, thermal shock, corrosion resistance, good sealing fast and so many early characteristics, is the most ideal circulating fluidized bed boiler Of the replacement products. And widely used in metallurgy, building materials, chemical and other fields.
|
Items |
Corundum |
High Alumina |
Spinel |
Mullite |
|
|
Al2O3( %) ≥ |
90 |
80 |
46 |
70 |
|
|
MgO(%) ≥ |
3.5 |
3.5 |
14.5 |
0.5 |
|
|
Linear Change Rate(%)≤ |
1500ºC×3h |
0.5 |
0.5 |
1.0 |
1.0 |
|
Bulk Density(g/cm3)≥ |
110ºC×24h |
3.0 |
2.7 |
2.6 |
2.7 |
|
Flexural Strength |
110ºC×24h |
6 |
5 |
4 |
4 |
|
1500ºC×3h |
5 |
5 |
7 |
10 |
|
|
Crush Colding Strength |
110ºC×24h |
30 |
30 |
20 |
40 |
|
1500ºC×3h |
40 |
35 |
30 |
50 |
|
