Products Description
Mullite-Sillimanite bricks are made from good quality and superpure 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 chemical demands.
Products Specifications
Applications:
Mullite-Sillimanite bricks primarily used for the key parts of the furnace of glass furnace, alkali-free glass fiber furnace, blast furnace hot blast stove, refractory-material tunnel kiln, etc.
| Item | ZA-75 | ZA-70 | ZA-65 | ZA-60 |
| Al2O3 % ≥ | 75 | 70 | 65 | 60 |
| SiO2 % ≤ | 23 | 25 | 32 | 37 |
| Fe2O3 % ≤ | 0.4 | 0.4 | 0.5 | 1 |
| Bulk density g/cm3 ≥ | 2.7 | 2.6 | 2.5 | 2.3 |
| Apparent porosity % ≤ | 18 | 18 | 18 | 19 |
| Cold crushing strength MPa ≥ | 100 | 100 | 80 | 80 |
| Refractoriness under load °C (0.2MPa,0.6%)≥ | 1680 | 1680 | 1650 | 1600 |
