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zircon corundum brick
Product Detailed
zircon corundum brick has :
1. Low impurities,
2. strong thermal shock resistance
3. good creeping resulte
Item | ZR-65 | AZ-1 |
Refractoriess(SK) | >37 | >38 |
Porosity(%) | 19 | 18 |
Bulk density(g/cm3) | 3.5 | 3.2 |
CCS(kgf/cm2) | 800 | 900 |
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 | - | 92 |
Fe2O3 | - | - |
ZrO2 | 60 | 5 |
SiO2 | 36 | - |
