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High Alumina Insulation Brick
It is used for the construction of furnace lining and insulating layer. The surface contact temperature shouldn't be higher than 1350℃ when it is exposed to flame directly.
- Al2O3: ≥48%
- Bulk Density: 0.6-1.0g/cm3
- High porosity
- Low volume density
- High mechanical intensity
- Low thermal conductivity
Product Details
High alumina insulation brick is also known as light weight alumina insulating brick. It is a new type of light weight insulating material which contains approximately 48% alumina, mullite and glass phase or corundum.
Performance Characters:
1.High porosity.
2.Low volume density.
3.Good insulation effect.
4.High mechanical intensity.
5.Low thermal conductivity.
Application:
It is used for the construction of furnace lining and insulating layer, and the parts without erosion or scouring action of intense high temperature melting material. The surface contact temperature shouldn’t be higher than 1350℃ when it is exposed to flame directly.
| Item | LG-1.0 | LG-0.9 | LG-0.8 | LG-0.7 | LG-0.6 |
| Al2O3 | ≥48 | ≥48 | ≥48 | ≥48 | ≥48 |
| Fe2O3 | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 |
| Bulk Density (g/cm3) | ≤1 | ≤0.9 | ≤0.8 | ≤0.7 | ≤0.6 |
| Cold Crushing strength (Mpa) | ≥3.92 | ≥3.43 | ≥2.94 | ≥2.45 | ≥1.96 |
| Thermal Conductivity Coefficient (W/mk) | ≤0.45 | ≤0.45 | ≤0.35 | ≤0.35 | ≤0.3 |
| Permanent Linear Change Rate (max 2%) (℃) | 1400 | 1400 | 1400 | 1350 | 1350 |