Mullite insulation brick holds special grade mullite (3Al2O3•2SiO2) as the major crystal phase. The content of alumina in mullite insulating brick is 42%-72%. The service temperature could be 1250℃-1600℃.
Characters of Kerui Mullite Insulation Brick
1.High porosity.
2.Low volume density.
3.Good insulation effect.
4.High mechanical intensity.
5.Low thermal conductivity.
申し込み of Kerui Mullite Insulation Brick
Mullite insulating brick is widely used in different types of high temperature furnaces or kilns. For example, it is widely used for hot-blast furnace, regenerative chamber of glass melting furnace, ceramic kiln, blind angle furnace lining of petroleum cracking system, shuttle kiln, roller kiln and petrochemical burning pits and so on.
Parameters of Kerui Mullite Insulation Brick
| Item | JM23 | JM26 | JM28 | JM30 |
| AL2O3(%) | 38-44 | 50-58 | 65-70 | 70-73 |
| Fe2O3(%) | 1 | 0.9 | 0.8 | 0.7 |
| Classification Temperature (℃) | 1350 | 1430 | 1540 | 1600 |
| Bulk Density (g/cm3) | 0.6-1 | 0.8-1 | 0.8-1 | 0.8-1 |
| Reheating Linear Change (%) CT-30 ℃*8h | 1250℃ -0.5 | 1400℃ -0.5 | 1500℃ -0.5 | 1550℃ -0.5 |
| Cold Crushing Strength (Mpa) | 3.0-4.5 | 3.0-4.5 | 3.0-4.5 | 3.0-4.5 |
| Modulus of Rupture (Mpa) | 1.5 | 1.7 | 1.8 | 2 |
| Thermal conductivity400℃(W/m.k) | 0.25 | 0.27 | 0.32 | 0.41 |
| Thermal Expansion1000℃(%) | 0.5 | 0.7 | 0.8 | 0.9 |
