| Item | Magnesia Mortar | ||||||
| QN-1 | QN-2 | QN-3 | QN-4 | QN-5 | QN-6 | ||
| MgO(%) ≥ | 82 | 85 | 60 | 25 | 50 | 75 | |
| Al2O3(%) ≥ | / | / | / | 35 | / | 6 | |
| Cr2O3(%) ≥ | / | / | / | / | 4 | / | |
| C(%) ≥ | / | / | 10 | 7 | / | / | |
| Bonding Time（min） | 2 | 2 | 2 | 2 | 2 | 2 | |
| Grain Size% | +0.5mm | 2 | 2 | 2 | 2 | 2 | 2 |
| -0.088mm | 65 | 65 | 65 | 65 | 65 | 65 | |
| Water Adding% | 28~33 | 28~33 | 28~33 | 28~33 | 28~33 | 28~33 | |
| Adhesive Strength (MPa) | 110℃×24h | 5~20 | 5~20 | 5~20 | 5~20 | 5~20 | 5~20 |
| 1400℃×3h | 25~40 | 25~40 | 25~40 | 25~40 | 25~40 | 25~40 | |
