High Alumina Castable
Application:
The appearance of high alumina refractory castables is powdery and sandy, which belongs to unshaped refractory materials. It is made of high-alumina raw materials as aggregate, powder, and binder to form a uniform mixture that can be easily molded and installed in various high-temperature applications.
Technical Data:
| Item | G – 15B | G – 15 | G – 16 | |
|---|---|---|---|---|
| Maximum service temperature, °C | 1400 | 1500 | 1600 | |
| Al₂O₃, % | ≥65 | ≥70 | ≥78 | |
| SiO₂, % | 25 | 25 | 15 | |
| B.D After Drying at 110°C, g/cm³ | 2.50 | 2.60 | 2.65 | |
| Cold Bending Strength, Mpa | 110°C, ×24h | 8; | 8 | 10 |
| 1100°C, ×3h: | 8 | 8 | 10 | |
| Cold Compressive Strength, Mpa | 110°C, ×24h | 70 | 80 | 100 |
| 110°C, ×24h | 70 | 80 | 100 | |
| Linear Change Rate After Burning PLC, % | 1100°C, ×3h: | ±0.3 | ±0.3 | ±0.3 |
| Construction Reference Water Consumption, % | 1100°C, ×3h: | 6 – 7 | 6 – 7 | 5.5 – 6.5 |
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