Rongsheng High Alumina Fire Bricks Manufacturer
High alumina bricks are made of high-quality bauxite clicker as starting material by shaping at high pressure and sintering at high temperature.
- International Code Name: SK35
- Chinese Code Name: LZ-48
- Refractoriness℃, min: 1750
- Apparent Porosity: ≤22 ％
- Bulk Density: 2.25-2.35 g/cm3
- Cold Crushing Strength: ≥39 Mpa
Advantages: 1. Corrosion-resistant; 2. Various shapes; 3. High quality;
Applications: High alumina bricks are mainly used in furnaces for glass, each position of linings of blast furnace.
The main applications are: 1, Hot-blast stove; 2, Blast furnace; 3, Glass furnace
Specifications: 1, High-temperature resistance; 2, Chemical erosion resistance; 3, thermal stability; 4, slag resistance
Technical Data & Physical and Chemical Index
| Item | Index | ||||
| International Code Name | SK35 | SK36 | SK37 | SK38 | SK40 |
| Chinese Code Name | LZ-48 | LZ-55 | LZ-65 | LZ-75 | LZ-80 |
| Al2O3 ,% | ≥48 | ≥55 | ≥65 | ≥75 | ≥80 |
| Fe2O3, % | ≤2 | ≤2 | ≤2 | ≤2 | ≤2 |
| Refractoriness℃, min | 1750 | 1770 | 1790 | 1790 | 1790 |
| Apparent Porosity％ | ≤22 | ≤22 | ≤23 | ≤23 | ≤21 |
| Bulk Density g/cm3 | 2.25-2.35 | 2.25-2.35 | 2.25-2.35 | 2.25-2.35 | 2.25-2.35 |
| Cold Crushing Strength Mpa | ≥39 | ≥44 | ≥49 | ≥54 | ≥65 |
| 0.2Mpa Refractoriness Under Load T0.2 ℃,min | ≥1420 | ≥1470 | ≥1500 | ≥1520 | ≥1530 |
| Permanent Linear Change On Reheating （%）1500℃X2h | +0.1~-0.4 x1450℃ | +0.1~-0.4 | +0.1~-0.4 | +0.1~-0.4 | +0.1~-0.4 |
