Mullite Insulation Brick
Product Description And Parameters
Main Composition:Al2O3+SiO2
Application:Insulation layer for various kinds of industrial furnaces
Al2O3:37-77%
Raw Material:Mullite
Standard Size:230*114*65 mm
Mullite Insulation Brick Main Composition:Al2O3+SiO2 Application:Insulation layer for various kinds of industrial furnaces Al2O3:37-77% Color:White Standard Size:230*114*65 mm Raw Material:Mullite Classification temperature:1260-1730℃
Mullite thermal insulation brick is a high alumina refractory with mullite (3Al2O3•2SiO2) as the main crystalline phase. Generally, the alumina content is between 37% and 77%.
Features
1. High temperature resistance.
2. Light weight.
3. Low thermal conductivity.
4. Energy saving.
Application
Mullite insulation bricks can be directly used in the lining of high-temperature kilns. At present, they have been widely used in the lining of shuttle kilns, roller kilns, glass and petrochemical kilns.
|
Item |
JM23 |
JM26 |
JM28 |
JM30 |
JM32 | |
|
Al2O3(%) |
≧37 |
≧54 |
≧64 |
≧72 |
≧77 | |
|
Fe2O3(%) |
≦1.0 |
≦0.9 |
≦0.8 |
≦0.7 |
≦0.5 | |
|
Classification Temperature(℃) |
1260 |
1400 |
1510 |
1620 |
1730 | |
|
Bulk Density(g/cm³) |
0.55-1.0 |
0.8-1.0 |
0.85-1.0 |
≧1.0 |
≧1.25 | |
|
Cold Crushing Strength (Mpa) |
≧1.2 |
≧1.6 |
≧2.1 |
≧2.5 |
≧3.5 | |
| Modulus of Rapture (Mpa) | ≧0.9 | ≧1.4 | ≧1.6 | ≧2.1 | ≧2.1 | |
| Thermal Expansion 1000℃ (%) | 0.5 | 0.7 | 0.8 | 0.9 | 1.1 | |
| Reheating Linear Change (%) CT-30 ℃X 8H | 1230℃-0.5 | 1400℃-0.5 | 1510℃-0.5 | 1620℃-0.9 | 1730℃-0.9 | |
|
Thermal Conductivity （W/m.k） |
400℃ |
0.14 |
0.27 |
0.32 |
0.41 |
0.49 |
| 600℃ | 0.16 | 0.29 | 0.34 | 0.43 | 0.50 | |
| 800℃ | 0.18 | 0.31 | 0.36 | 0.44 | 0.51 | |
| 1000℃ | 0.20 | 0.33 | 0.38 | 0.45 | 0.53 | |
