High Alumina Lightweight Brick / High Alumina Lightweight Insulation Brick
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Refractory Brick
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Details Introduction
It is suitable for thermal insulation layers in pyrolysis furnaces, hot blast stoves, and various resistance furnaces. It is also widely used in the metallurgical industry for various heating furnaces and coking furnaces.
High-alumina lightweight bricks, also known as lightweight high-alumina bricks or high-alumina insulating refractory bricks, are primarily made from bauxite as the main raw material, combined with other binders, pressed into shape, and sintered at high temperatures.
The Al₂O₃ content of high-alumina lightweight bricks is greater than 48%, and their main function is to serve as thermal insulation in furnace linings.
High-alumina lightweight bricks are widely used insulating refractory bricks in the market. The characteristics of lightweight high-alumina bricks include high compressive strength, low thermal conductivity, and good thermal insulation performance.
High-alumina lightweight bricks are mainly used in the thermal insulation layer of furnace linings and in areas that do not experience strong high-temperature erosion from molten materials. If high-alumina lightweight bricks are used in areas that come into direct contact with flames, the direct contact temperature of the bricks should not exceed 1350°C.
The structure of high-alumina lightweight bricks is block-shaped insulating refractory material. High-alumina lightweight bricks have good thermal insulation effects and are suitable for thermal insulation layers in pyrolysis furnaces, hot blast stoves, and various resistance furnaces. They are also widely used in the metallurgical industry for various heating furnaces and coking furnaces.
| Project |
High-alumina lightweight bricks |
||
| Al₂O₃% |
≥48 |
≥48 |
≥48 |
| Fe2O3% |
≤2.0 |
≤2.0 |
≤2.0 |
| Bulk density g/cm3 |
1.0 |
0.8 |
0.6 |
| Compressive strength at room temperature / MPa |
≥3.5 |
≥2.5 |
≥1.6 |
| Thermal conductivity W.(m.k)% |
≤0.5 |
≤0.35 |
≤0.3 |
Key words:
High Alumina Lightweight Brick / High Alumina Lightweight Insulation Brick
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