| Index | Nkeji | Data |
| Al2O3 | % | ≥65 |
| Fe2O3 | % | ≤1.6 |
| Olu pore | % | ≤24 |
| Ike mkpakọ | n'arọ / cm2 | ≥ 900 |
| Refractoriness | ℃ | ≥1800 |
| Nnukwu njupụta | n'arọ/m3 | ≥1386 |
| Nnukwu ike ndọda | n'arọ/m3 | ≥2350 |
| Refractoriness ℃ n'okpuru ibu nke 2kg / cm2 | ℃ | ≥1500 |
| LOI | % | ≤0.1 |