| NX-82 | NX-22 | NX-21 | NX-21 |
| 365×365×2030 | 365×365×2030 | 365×365×2030 | Φ425×2030 |
| 425×425×2030 | 425×425×2030 | 425×425×2030 | Φ525×2030 |
| 700×350×2400 | 525×525×2030 | 525×525×2030 | Φ625×2030 |
| 525×625×1950 | 525×625×1950 | Φ800×1100 | |
| Φ380×2030 | Φ900×1100 |
| Grade / Item | NX-21 | NX-22 | NX-82 |
| Grain Size(μm) | 2.0 | 2.0 | 0.8 |
| Bulk Density(≥g/cm3) | 1.6 | 1.7 | 1.72 |
| Compressive Strength(≥MPa) | 19 | 30 | 35 |
| Flexural Strength（≥MPa） | 7.8 | 13 | 13.5 |
| Specific Resistance（≤μΩm） | 9 | 8.5 | 8.5 |
| Ash Content (≤%） | 0.3 | 0.3 | 0.3 |
| Thermal expansion coefficient（×10-6℃） | 2.0 | 2.2 | 2.2 |
