Description
Item | Low cement castable | Ultra-low cement castable | Cement free castable | |||||||
---|---|---|---|---|---|---|---|---|---|---|
SPC-45 | SPC-70 | SPC-85 | SPUC-45 | SPUC-70 | SPUC-85 | SPW-45 | SPW-45 | SPW-45 | ||
Chemical composition, % | Al2O3 | ≥45 | ≥70 | ≥85 | ≥45 | ≥70 | ≥85 | ≥45 | ≥70 | ≥85 |
CaO | ≤2.5 | ≤2.5 | ≤2.5 | ≤1.5 | ≤1.2 | ≤1.0 | ||||
Modulus of rupture, MPa | 100℃ drying | ≥6 | ≥10 | ≥12 | ≥5 | ≥6 | ≥10 | ≥2 | ≥3 | ≥4 |
℃×3h calcination | 1300℃ ≥8 | 1500℃ ≥12 | 1500℃ ≥12 | 1300℃ ≥10 | 1500℃ ≥12 | 1500℃ ≥15 | 1300℃ ≥9 | 1500℃ ≥10 | 1500℃ ≥12 |
|
Permanent linear change, % | ℃×3h | 1350℃ ±0.5 | 1500℃ ±0.5 | 1500℃ ±0.5 | 1350℃ ±0.5 | 1500℃ ±0.5 | 1500℃ ±0.5 | 1350℃ ±0.5 | 1500℃ ±0.5 | 1500℃ ±0.5 |
Bulk density | g/cm3 | ≥2.3 | ≥2.7 | ≥3.0 | ≥2.3 | ≥2.7 | ≥3.0 | ≥2.3 | ≥2.7 | ≥3.0 |
Working temperature | ℃ | 1400 | 1500 | 1600 | 1400 | 1500 | 1600 | 1400 | 1500 | 1600 |
Application | Lining of various furnace & kiln |