Application:
Clay bricks are divided by use and are mainly divided into clay refractory bricks for blast furnaces, clay refractory bricks for hot blast furnaces, and large clay refractory bricks for coke ovens and glass kilns.
High Working Temperature
Proper Thermal Stability
Proper Acid Resistance
Good Thermal Shock Resistance
Technical Data:
| Item | PN – 42 | PN – 40 | PN – 35 | PN – 30 | |
|---|---|---|---|---|---|
| Al₂O₃, % | ≥ | 42 | 40 | 35 | 30 |
| Fe₂O₃, % | ≥ | 2.0 | / | / | / |
| Apparent Porosity, % | ≤ | 20 | 24 | 26 | 23 |
| Cold Crushing Strength, MPa | ≥ | 45 | 35 | 30 | 30 |
| 0.2MPa Refractoriness Under Load, °C | ≥ | 1400 | 1350 | 1320 | 1300 |
| Permanent Linear Change, % | 1400°C*2h – 0.4~0.1 | 1350°C*2h – 0.4~0.1 | 1300°C*2h – 0.4~0.1 | 1300°C*2h – 0.4~0.1 |
