| 材质 | 刚玉质 | 莫来石质 | 高铝质 | |||
| 型号 | KH-GY | KH-ML1 | KH-ML2 | KH-ML3 | HK-GL | |
| 化学成分% | Al2O3≥ | 80 | 55 | 60 | 65 | 65 |
| CaO≤ | 1.5 | 2.5 | 2.5 | 2.0 | 2.4 | |
| 体积密度g/cm3，≥ | 110℃×24h | 2.7 | 2.3 | 2.4 | 2.4 | 2.4 |
| 抗折强度Mpa，≥ | 110℃×24h | 6 | 6 | 6 | 6 | 6 |
| 1145℃×3h | 12 | 9 | 10 | 11 | 10 | |
| 耐压强度Mpa，≥ | 110℃×24h | 50 | 30 | 30 | 35 | 35 |
| 1145℃×3h | 70 | 50 | 55 | 60 | 60 | |
| 线变化率% | 110℃×24h | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 |
| 1145℃×3h | ±0.5 | ±0.5 | ±0.5 | ±0.5 | ±0.5 | |
