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Levelling corundum is high-tech products developed by combining applicable characteristics of fireproofing materials in accordance with solid fluid theory, advantages: good liquidity with proper setting time; saving labor and force, fast and convenient; high intensity, long service life; good heat preservation performance, high resistance to temperature, heat and shocking, good stability, high resistance to corrosion and washing. Applicable to wrapping wall of steel ladle, surrounding of brick cup, as well as complicated narrow part
Physical and Chemical Index：
|
Performance of Levelling Corundum |
|
Chemical composition(%) |
Al2O3 |
≥ 90 |
|
CaO |
≤0.5 |
|
Volume density(g/cm3) |
＞3.0 |
|
Rupture strength(Mpa) |
(110℃×24h) |
＞6 |
|
(1500℃×3h) |
＞12 |
|
Compression strength(Mpa) |
(110℃×24h) |
＞40 |
|
(1000℃×3h) |
＞55 |
|
(1500℃×3h) |
＞130 |
|
Linear rate of change (%) |
(1000℃×3h) |
0--0.1 |
|
(1500℃×3h) |
0--0.2 |
|
Fire resistance degree(℃)
|
＞1750 | |
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