
| Class performance | Index value | Typical value | |
|---|---|---|---|
| Chemical composition(%) | Al2O3(%) | ≥43 | 44.3 |
| SiC+C | ≥16 | 16.2 | |
| Bulk density(g/cm³) | 110℃x24h | ||
| 1450℃x3h | ≥1.9 | ≥2.04 | |
| Compressive strength(Mpa) | 110℃x24h | ||
| 1450℃x3h | ≥5 | 15.5 | |
| Flexural strength(Mpa) | 110℃x24h | ||
| 1450℃x3h | |||
| Linear change rate(%)1500℃x3h | |||