Corundum Castable
Application:
Corundum refractory castable is an unshaped refractory material formed by mixing corundum and super bauxite clinker as aggregate and powder, plus some pure calcium aluminate cement, as well as binders and additives.
Technical Data:
| Item | G – 17 | G – 18S | G – 18 | |
|---|---|---|---|---|
| Maximum service temperature, °C | 1650 | 1650 | 1700 | |
| Al₂O₃, % | ≥85 | ≥90 | ≥93 | |
| SiO₂, % | 8 | 4 | 2 | |
| B.D After Drying at 110°C, g/cm³ | 2.90 | 3.00 | 3.00 | |
| Cold Bending Strength, Mpa | 110°C, ×24h: | 9 | 12 | 14 |
| Cold Compressive Strength, Mpa | 110°C, ×24h: | 80 | 90 | 100 |
| Linear Change Rate After Burning PLC, % | 1100°C, ×3h: | ±0.3 | ±0.3 | ±0.2 |
| 1500°C, ×3h: | ±0.6 | ±0.6 | ±0.5 | |
| Construction Reference Water Consumption, % | 4.5 – 5.5 | 5 – 6 | 5.5 – 6.5 |
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