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1. Mullite fire brick for refractory.
2. professional manufacture.
3.10 years of exporting experiences.
4.ISO 9001 certified.
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Mullite refractory fire bricks are made from good quality and super pure raw materials, with strictly classified fillings according to their grades. These fillings can form a uniform pore structure after burnt during the process of manufacture. Each grade of products has unique design to meet different thermal, physical and chomical demands.
Features:
- Low thermal conductivity
- Low heat capacity
- Low content of impurities
- High hot compressive strength
- Accurate size
- The bricks can be processed into special shapes.
Application:
Lightweight millite bricks are widely used as industrial furnace hot face lining and back lining in metallurgy, petrochemical, building materials, ceramics, machinery and other industries. Such as: cracking furnace, conversion furnace, heating equipment, refining equipment, recycling equipment, stove, heating furnace, soaking furnace, heat treatment furnace, resistance furnace, tunnel kiln, roller kiln, shuttle kiln, bell kilns, glass kiln and so on.
General properties:
|
Item Indicator |
mullite bricks |
|
Al2O3 % |
≥86 |
|
Fe2O3 % |
≤11 |
|
SiO2 % |
≤0.3 |
|
Volume Density (g/cm3) |
≥2.90 |
|
Apparent porosity % |
≤19 |
|
Compressive strength (Mpa) |
≥80 |
|
Refractoriness under load °C (0.2 Mpa,0.6%) |
≥1700 |
|
Reheating linear change rate % (1600°C*2h) |
±0.2 (1600°C*12h) |
|
Highest service temperature |
1700 |
