► Description:
Mullite brick IS characterized by good high temperature resistance and good thermal shock resistance, whick comes into being mullite through calcine with clay, high alumina materials and ceramics.
► The main applications are:
1,Sulfuric cracking furnace
2,Fibrous glass furnance.
► Specifications:
1,Low permanent linear change on reheating
2,Good Thermal Shock Stability
3,High dense structure
► Advantages:
1,High quality;
2,chemical corrosion- resistance
| Item | MU 60 | MU 65 | MU 70 | MU 75 | |
| Chemical composition | Al2O3 | ≥60 | ≥65 | ≥70 | ≥75 |
| SiO2 | ≤35 | ≤33 | ≤26 | ≤24 | |
| Fe2O3 | ≤1.0 | ≤1.0 | ≤0.6 | ≤0.4 | |
| Apparent Porosity％ | ≤17 | ≤17 | ≤17 | ≤18 | |
| Bulk Density g/cm3 | ≥2.55 | ≥2.55 | ≥2.55 | ≥2.55 | |
| Cold Crushing Strength Mpa | ≥60 | ≥60 | ≥80 | ≥80 | |
| 0.2Mpa Refractoriness Under Load T0.6 ℃ | ≥1580 | ≥1600 | ≥1600 | ≥1650 | |
| Permanent Linear Change On Reheating (%)1500℃X2h | 0～+0.4 | 0～+0.4 | 0～+0.4 | 0～+0.4 | |
| Thermal Shock Resistances 100℃ water cycles | ≥18 | ≥18 | ≥18 | ≥18 | |
| 20－1000℃ Thermal Expansich10-6/℃ | 0.6 | 0.6 | 0.6 | 0.55 | |
| Thermal Conductivity (W/MK) 1000℃ | 1.74 | 1.84 | 1.95 | 1.95 | |
