Gongyi Fifth Refractories Head Factory
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Payment Terms: | T/T,L/C |
Place of Origin: | Henan, China (Mainland) |
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Chemical composition | RH-H |
Al2O3 | 98.5% |
SiO2 | 0.4% |
Na2O | 0.9% |
Fe2O3 | Tiny |
TiO2 | Tiny |
Physical properties | |
True density | 3.94g/cm3 |
Cold crushing strength | ≥250MPa |
Thermal expansion rate at 1000deg.C | 0.88% |
Thermal expansion rate at 1500deg.C | 1.32% |
Bulk density | ≥3.30g/cm3 |
≥3.60g/cm3 | |
Glass phase | 0-1 |
Alpha-corundum | 90-95% |
Beta-corundum | 5-10% |