Fused Spinel (Alumina Magnesia Spinel)
Fused Spinel is a high-purity refractory raw material produced by fusing alumina and magnesia at ultra-high temperatures. It features a dense crystal structure, excellent thermal shock resistance, and outstanding corrosion resistance.
ZE XI MINERAL CO., LTD supplies various grades of fused spinel including AM-65, AM-70, AM-85 and AM-90, widely used in steel, cement, foundry and petrochemical industries.
Technical Specifications
Chemical Composition & Physical Properties
| Grade | AM-65 | AM-70 | AM-85 | AM-90 |
|---|---|---|---|---|
| Al₂O₃ (%) | 63–68 | 71–76 | 82–87 | 88–92 |
| MgO (%) | 30–35 | 22–27 | 12–17 | 8–12 |
| CaO (%) | ≤0.70 | ≤0.55 | ≤0.50 | ≤0.30 |
| SiO₂ (%) | ≤0.50 | ≤0.40 | ≤0.35 | ≤0.25 |
| Fe₂O₃ (%) | ≤0.40 | ≤0.35 | ≤0.25 | ≤0.20 |
| Bulk Density (g/cm³) | ≥3.30 | ≥3.20 | ≥3.20 | ≥3.30 |
Key Advantages
- High purity and uniform crystal structure
- High bulk density and mechanical strength
- Excellent resistance to corrosion and thermal shock
- Stable performance under high-temperature conditions
- Environmentally friendly alternative to chrome-containing materials
Packaging
Standard packaging: 25 kg woven plastic bags or
1000 kg jumbo bags.
Customized packaging is available upon customer request.