White Tabular Alumina 325mesh & 200mesh Castable Corundum - 99.4% Al2O3 Purity, 3.56g/cm³ Density for Refractory Applications
Tabular corundum, also known as sintered tabular alumina, is a high-purity form of alumina (Al₂O₃) processed to achieve unique flat, plate-like crystals through sintering above 1900°C.
- High purity: 99.4% Al₂O₃ content
- Excellent thermal stability
- High mechanical strength
- Low porosity: 3.5% max
- Superior dimensional stability
- High corrosion resistance
- Excellent thermal shock resistance
- Resistance to alkaline slag erosion
- Good resistance to molten steel erosion
| Parameter | Standard | Test Result |
|---|---|---|
| Apparent Gravity | 3.5g/cm³ min | 3.56g/cm³ |
| Apparent Porosity | 5.0% max | 3.5% |
| Water Absorption | 1.5% max | 1.1% |
| Component | Standard % | Test % |
|---|---|---|
| Al₂O₃ | 99.2 min | 99.4% |
| Na₂O | 0.40 max | 0.29% |
| Fe₂O₃ | 0.10 max | 0.02% |
| CaO | 0.10 max | 0.02% |
| SiO₂ | 0.15 max | 0.03% |
Section Sand: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 325#, 200#-0, 100#-0
Appearance: Blocks, Grits, Powder
Color: White
- Refractories: Furnace linings, kiln components, refractory bricks
- Foundry & Investment Casting: Ceramic shells for precision metal castings
- Ceramics Manufacturing: Advanced ceramic formulations
- Abrasives & Polishing: Grinding wheels, sandpaper, surface finishing
- Catalyst Supports: Chemical and petrochemical processes
- Insulation Materials: High-temperature furnace insulation
- Electronics & Semiconductor: Substrates, insulating tubes, heaters
- 25 kg/plastic bag
- 1000 kg/plastic bag
- Custom packaging available per customer requirements
Zhengzhou Xinli Wear-resistant Materials Co. Ltd. - Professional manufacturer since 1996 specializing in high-quality abrasives and wear-resistant materials including white fused alumina, corundum powders, and alumina compounds.
Minimum Order Quantity: 1000 kg
Delivery Time: 7-20 days depending on order volume
Payment Terms: T/T, Irrevocable L/C at sight
Delivery Method: Sea, Air, or Express shipping
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