| Kielezo | Kitengo | Data |
| Al2O3 | % | ≥65 |
| Fe2O3 | % | ≤1.6 |
| Kiasi cha pore | % | ≤24 |
| Nguvu ya kukandamiza | kilo/cm2 | ≥ 900 |
| Kinzani | ℃ | ≥1800 |
| Wingi msongamano | kg/m3 | ≥1386 |
| Mvuto maalum | kg/m3 | ≥2350 |
| Refractoriness ℃ chini ya mzigo wa 2kg/cm2 | ℃ | ≥1500 |
| LOI | % | ≤0.1 |