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pure corundum brick
Product Detailed
corundum brick has the charactistic as following:
1.Low impurities
2.strong thermal shock resistance
3.good creeping result
Item | ZR-65 | AZ-1 |
Refractoriess(SK) | >37 | >40 |
Porosity(%) | 19 | 18 |
Bulk density(g/cm3) | 3.5 | 3.15 |
CCS(kgf/cm2) | 800 | 1000 |
Refractoriness under load(°C) | >1600 | >1700 |
Linear change on reburning(%)1500°C 2hrs | +/-0.2 | +/-0.2 |
| ThThermal expansivity(%)1000°C | <0.3 | <0.3 |
Al2O3 | - | 98 |
Fe2O3 | - | 0.2 |
ZrO2 | 60 |
|
SiO2 | 36 | - |
