| Index | Chav tsev | Cov ntaub ntawv |
| Al2O3 | % | ≥65 |
| Fe2O 3 | % | ≤1.6 |
| Pore ntim | % | ≤ 24 |
| Compressive zog | kg / cm2 | ≥ 900 |
| Refractoriness | ℃ | ≥1800 |
| Qhov ntom ntom | kg/m3 | ≥1386 |
| Lub ntiajteb txawj nqus tshwj xeeb | kg/m3 | ≥2350 |
| Refractoriness ℃ nyob rau hauv load ntawm 2kg / cm2 | ℃ | ≥1500 |
| LOI | % | ≤0.1 |