|
Physical Properties |
Refractoriness (°C) | 1750 | ≥ 1790 | >1850 | |
| Softening Temp Under Load 2kg/cm2 (°C) | 1450 | ≥ 1500 - 1510 | 1600 | ||
| Porosity (%) | 22 | ≥ 23 | 20 | ||
| Compression Strength at Room Temperature (kg / cm2) | 30 | ≤ 500 | 700 | ||
| Shrinkage after Re-heating | 1400°C (2 hrs) | ≤ -0.5 - 0.2 | |||
| 1500°C (2hrs) | Nil | ||||
| Chemical Analysis | AL2O3 (%) | 55 (Min) | 58 | ||
| Fe2O3 (%) | 2 (Max) | ≥ 65 - 75 | 1.5 | ||