Refractory High Alumina Castable High Temperature Resistance 1600°C - 1750°C
High Alumina Castable Features Excellent High-temperature Resistance 1600°C-1750°C
High Alumina Castable is formulated with high-quality bauxite, mullite, andalusite or corundum as aggregates, combined with silica powder and α-alumina powder as micro powders.
Refractory cement is used as the binder, together with selected additives to enhance overall performance.
The formulation can be adjusted according to different application requirements. Compared with conventional dense castables, High Alumina Castable is suitable for operating under higher temperature conditions and offers significantly higher cold crushing strength.
Technical data
| Item | LDSHA75 | LDSHA80 | LDSHA85 | LDSHA95 |
|---|---|---|---|---|
| Service Temp ℃ | 1600 | 1650 | 1700 | 1750 |
| Bulk Density (g/cm3) (Dried at 110℃) | 2.5 | 2.6 | 2.7 | 3.0 |
| CCS 110℃ (Mpa) 1100℃ 1500 ℃ | 65 55 80 |
70 60 85 |
90 80 100 |
95 85 110 |
| MOR 110℃ (Mpa) 1100℃ 1500℃ | 10 9 11 |
11 9 12 |
12 10 13 |
13 12 15 |
| Max Grain Size (mm) | 6 | 6 | 6 | 6 |
| Chemical Analysis(%) Al2O3 Fe2O3 |
75 2.5 |
80 2.0 |
85 1.8 |
95 1.2 |
| Application Guidelines Mixer Placement Water/Mixer Temp℃ Mixing Time(Min):Dry/Wet |
P V/T 20±5 2/5 |
P V/T 20±5 2/5 |
P V/T 20±5 2/5 |
P V/T 20±5 2/5 |
| Water % (Typical) | 7-9 | 7-9 | 6-8 | 6-7 |
Features
- Excellent abrasion and erosion resistance
- Superior high-temperature performance
- High cold crushing strength and mechanical strength
- Good resistance to chemical and slag corrosion
- Long service life
Applications
- Waste incinerators
- Aluminum smelting furnaces
- Cement kilns and related equipment
- Steelmaking industry, including ladles, tundishes and induction furnaces
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