High Alumina Insulation Brick
Application:
Used in insulation layer of industrial kilns like ceramic tunnel kilns, roller kilns, shuttle kilns, wall kilns, as well as other locations without strong erosion of high-temperature molten materials.
Technical Data:
| Item/Grade | Lg140 – 1.2 | Lg140 – 1.0 | Lg140 – 0.8L | |
|---|---|---|---|---|
| Al₂O₃, % | ≥ | 48 | ||
| Fe₂O₃, % | ≤ | 2.0 | ||
| Bulk Density, g/cm³ | ≤ | 1.2 | 1 | 0.8 |
| Cold Crushing Strength, MPa | ≥ | 4.5 | 3.5 | 2.5 |
| Permanent Linear Change, % (T(°C)×12h) Note: Temperature T/°C | —— | 1400 | —— | |
| Thermal Conductivity Coefficient, W/(m·K) Average Temperature (350±25°C) | ≤ | 0.55 | 0.50 | 0.35 |
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