ZE XI MINERAL CO., LTD
Tabular Alumina
Tabular Alumina is a pure sintered α-alumina (corundum) material produced by rapid sintering at temperatures above 1800°C without the use of sintering aids. It consists of large, well-developed hexagonal tabular α-alumina crystals and offers outstanding thermal, mechanical and chemical stability.
Key Features
- Extremely high refractoriness
- Excellent mechanical strength and abrasion resistance
- Very high chemical purity
- Excellent dielectric properties
- Strong resistance to acid and alkali corrosion
Typical Applications
- Steel and foundry industries
- Cement and petrochemical industries
- Ceramics and waste incineration
- Electrical insulators and kiln furniture
- Catalyst support
- Ground tabular alumina for epoxy and resin systems
Chemical Composition (Typical, %)
| Component | All Sizes | -45 μm L1 | -45 μm STD | -20 μm |
|---|---|---|---|---|
| Al₂O₃ | 99.5 | 99.5 | 99.1 | 99.3 |
| Na₂O | ≤0.40 | ≤0.40 | ≤0.60 | ≤0.40 |
| SiO₂ | ≤0.09 | ≤0.09 | ≤0.12 | ≤0.15 |
| Fe (Magnetic) | ≤0.02 | ≤0.02 | ≤0.30 | ≤0.02 |
Physical Properties
| Item | Value |
|---|---|
| Bulk Specific Gravity | ≥3.50 g/cm³ |
| Apparent Porosity | ≤5% |
| Water Absorption | ≤1.50% |
Packaging
Tabular Alumina is supplied in 25 kg paper bags on 1.5 MT pallets. Other sizes and customized packaging are available upon request.