Description of Andalusite Brick:
With low impurity content, strength at high temperature of andalusite brick decreases very little. It not only has the characteristics of resistance to rapid cold and heat, high mechanical strength, strong thermal shock resistance, strong slag resistance, high refractoriness under load, but also has extremely high chemical stability and strong resistance to chemical corrosion.
Technique Data of Andalusite Brick:
Item | Specification | ||||
RH155 | RH150 | RH145 | RH140 | RH135 | |
Al2O3 % | ≥69 | ≥65 | ≥61 | ≥57 | ≥53 |
Fe2O3 % | ≤1.0 | ≤1.0 | ≤1.2 | ≤1.2 | ≤1.5 |
TiO2 % | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.6 | ≤0.6 |
Apparent Porosity, % | ≤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 |
CCS, MPa | ≥55 | ≥55 | ≥50 | ≥50 | ≥40 |
0.2MPa RUL ℃ | ≥1700 | ≥1700 | ≥1650 | ≥1600 | ≥1520 |
PLC, % | 1500℃×2h ±0.2 | 1500℃×2h ±0.2 | 1500℃×2h ±0.2 | 1450℃×2h ±0.2 | 1450℃×2h ±0.2 |
Creep Rate, % 0.2MPa 0~50h | ≤0.8 1550℃ | ≤0.8 1500℃ | ≤0.8 1450℃ | ≤0.8 1400℃ | ≤0.8 1350℃ |
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