Refractory Castable White Fused Corundum
- Description for White Fused Corundum:
White Fused Corundum is made from high quality alumina by being melted above 2000°C in the electric arc furnace. It is characterized by high purity, great self-sharpening, acid and alkali resistance, high temperature resistance and stable thermal performance. Its hardness is a little higher than brown fused alumina. It is with low toughness, great grinding ability, small heat and high efficiency. White Fused Corundum can be made into all kinds of abrasives, suitable for grinding high carbon steel, high speed steel, stainless steel and other fine-grained abrasives; it can be also used for precision casting and high-refractory materials.
- Available Size for Refractory White Fused Corundum:
Sand: 8-5mm, 5-3mm, 3-1mm, 0-1mm
Powder: 320mesh-0, 280mesh-0, 240mesh-0, 200mesh-0, 180mesh-0,150mesh-0,100mesh-0
The physical and chemical analysis for refractory White Fused Corundum:
| Physical properties | Chemical compositions | Content (%) | |
| Crystal body | Hexagonal | Al2O3 | ≥99.2 |
| Main crystal body | Al2O3 | ||
| Color | white | Na2O | ≤0.4 |
| True density | ≥3.9 g/cm3 | ||
| Bulk density | 1.75-1.95 g/cm3 | SiO2 | ≤0.1 |
| Mohs’ hardness | 9 | ||
| Linear expansion coefficient | 8.3×10-4 |
Fe2O3 |
≤0.1 |
| Loss on ignition | ≤0.06% | ||
- White Fused Corundum sand 0-1mm/1-3mm/3-5mm/5-8mm for refractory:
White Fused Corundum -325#:
White Fused Corundum melting:
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