High Alumina Bricks
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- 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 Mpa: ≥39
Features
Description:
High alumina bricks is made of high-quality bauxite clicker as starting material by sgaping at high pressure and sintering at high temperature.
Applications:
High alumina bricks are mainly used in furnace 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 temperture resistant;
2. Chemical erosion resistant;
3. thermal stability;
4. slag resistance.
Advantages:
1. Corrosion-resistant;
2. Various shapes;
3. High quality.
Parameter
| 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 |
