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Product description of lightweight insulating castable
Lightweight thermal insulation castable is made from high-quality, high-strength material aggregate, ultra-fine powder and compound additives, with high fire resistance, high strength and low thermal conductivity.
Applications of lightweight insulating castable
Lightweight mullite castables are suitable for use as linings in various industrial kilns and other high temperature and energy saving parts. Commonly used in CFB boiler top, tail furnace wall and other parts.
Parameters of lightweight insulating castable
| Index | QJ-0.5 | QJ-0.8 | QJ-1.0 | QJ-1.1 | QJ-1.3 | QJ-1.5 | QJ-1.8 | |
| Bulk Density, g/cm3≥ | 0.5 | 0.8 | 1 | 1.1 | 1.3 | 1.5 | 1.8 | |
| Rervice Temperature, ℃ | 1150 | 1200 | 1250 | 1250 | 1300 | 1300 | 1350 | |
| Thermal Conductivity, W/m·k≤ | 350℃ | 0.15 | 0.25 | 0.3 | 0.4 | 0.45 | 0.6 | 0.65 |
| 700℃ | 0.2 | 0.3 | 0.4 | 0.45 | 0.5 | 0.7 | 0.75 | |
| Cold Crushing Strength, MPa≥ | 110℃×24h | 1.5 | 2 | 4 | 5.5 | 10 | 15 | 20 |
| 1000℃×3h | 1.5 | 2 | 5.5 | 6.5 | 15 | 20 | 30 | |
| Permanent linear change 1000℃×3h,% | -1.5 | -1 | -1 | -0.5 | -0.5 | -0.5 | -0.5 |