Magnesia–alumina spinel bonded castables engineered for steel ladles, cement kiln transition zones, and high-slag environments. High slag resistance, thermal stability, and long campaign life.
Request a QuoteInfinity’s spinel castables combine low-cement technology with magnesia–alumina spinel bonding. The dense microstructure limits slag penetration while maintaining mechanical strength across thermal cycles.
Use in steel ladles and EAF/BOF working linings, cement kiln transition zones and riser ducts, and selected non-ferrous furnaces.
Spinel bond and tuned MgO/Al₂O₃ balance resist corrosive melts.
Maintains integrity under frequent thermal cycling.
Grades optimized for steel, cement, and non-ferrous operations.
| Property | Typical Value |
|---|---|
| Al₂O₃ | 65–85% |
| MgO | 8–20% |
| Bulk Density | 2.7–3.0 g/cc |
| CCS @110 °C | ≥ 450 kg/cm² |
| Max Service Temperature | 1650–1800 °C |
| Packaging | 25 / 50 kg moisture-proof bags |
Values are indicative. Replace with certified lab values when available.
High Al₂O₃ spinel-bonded castable for steel ladle working and safety linings.
| Property | Typical |
|---|---|
| Al₂O₃ | 75–80% |
| MgO | 10–14% |
| Bulk Density | ≈ 2.85 g/cc |
| Hot MOR @1400 °C | ≥ 60 kg/cm² |
Application: steel ladles, tundish covers.
Balanced MgO for alkali vapor resistance in cement kiln transition zones.
| Property | Typical |
|---|---|
| Al₂O₃ | 70–75% |
| MgO | 14–18% |
| Permanent Linear Change | ±0.3% @ 1500 °C |
Application: kiln transition zones, riser ducts, cooler bull nose.
Maximum slag penetration resistance and elevated hot strength for harsh zones.
| Property | Typical |
|---|---|
| Al₂O₃ | 80–85% |
| Hot MOR @1500 °C | ≥ 80 kg/cm² |
| Thermal-Shock Index | Pass 10 cycles @ 950→20 °C |
Application: BOF/EAF working linings, high-slag contact areas.
Need help selecting the right spinel castable? We’ll size the grade to your process.
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