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【Advantage】： High strength, wear resistance, penetration resistance, corrosion resistance, good mechanical properties and convenient construction
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High Alumina Castable is a kind of refractory castable which uses high alumina raw material as aggregates and the powder and then be added with binding agent. High aluminum refractory castable has high mechanical strength, good thermal shock resistance, good corrosion resistance. It's mainly used for furnace lining of boiler, blast furnace hot blast stove, heating furnace, ceramic kiln and various industrial furnaces.
Commonly used in CFB boiler furnace top, tail furnace wall and other parts.
| Items | High alumina high strength castable | |
| GQL-70 | GQL-80 | |
| Al2O3，% ≥ | 70 | 80 |
| Bulk Density，g/cm3 ≥ | 2.65 | 2.85 |
| Cold bending strength 1300℃×3h，MPa ≥ | 8 | 12 |
| Cold Crushing Strength 1300℃×3h，MPa ≥ | 70 | 90 |
| Thermal Shock Resistance(900℃water cooling/time) ≥ | 15 | 10 |
| Normal temperature wear，cm3 ≤ | 7 | 5 |
| PLC，% 1300℃×3h | ±0.3 | ±0.3 |
