Application:
Andalusite bricks with excellent performance can fully meet the requirements for use in different parts of blast furnaces and hot blast stoves and in different working environments.
High Working Temperature
Good Thermal Shock Resistance
Good Thermal Stability
Good Erosion and Corrosion Resistance
Technical Data:
| Item | RH – 155 | RH – 150 | RH – 145 | RH – 140 | RH – 135 | RH – 130 |
|---|---|---|---|---|---|---|
| Al₂O₃, % | ≥69 | 65 | 61 | 57 | 53 | 49 |
| Fe₂O₃, % | ≤1 | 1 | 1.2 | 1.2 | 1.5 | 1.5 |
| TiO₂, % | ≤0.5 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 |
| Apparent Porosity, % | ≤20 | 20 | 20 | 20 | 20 | 20 |
| Bulk Density, g/cm³ | 2.55 – 2.70 | 2.50 – 2.65 | 2.45 – 2.60 | 2.40 – 2.55 | 2.35 – 2.50 | 2.30 – 2.45 |
| Cold Crushing Strength, MPa | 55 | 55 | 50 | 50 | 40 | 40 |
| 0.2MPa Refractoriness Under Load, °C | ≥1700 | 1700 | 1650 | 1600 | 1520 | 1450 |
| Permanent Line Change, % | —— | 1500°C×2h | —— | 1450°C×2h | —— | —— |