| 项目 | 90% | 92% | 95% | 97% | 99瓷 |
| Al2O3,% | ≥90 | ≥92 | ≥95 | ≥95 | ≥99 |
| Fe2O3,% | ≤0.28 | ≤0.25 | ≤0.15 | ≤0.12 | ≤0.10 |
| SiO2,% | ≤6 | ≤4 | ≤2 | ≤1.5 | ≤0.2 |
| 耐火度, ℃ | ≥1750 | ≥1780 | ≥1800 | ≥1820 | ≥1850 |
| 荷重软化温度(0.2MPa),℃ | ≥1480 | ≥1550 | ≥1600 | ≥1650 | ≥1680 |
| 抗压强度,MPa | ≥90 | ≥120 | ≥150 | ≥160 | ≥180 |
| 吸水率,% | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 |
| 耐酸度,% | ≥98.5 | ≥98.5 | ≥98.6 | ≥98.7 | ≥98.8 |
| 耐碱度,% | ≥90 | ≥92 | ≥93 | ≥95.5 | |
| 耐急冷急热性,℃ | 800热交换空冷五次不裂 | 820热交换空冷五次不裂 | 850热交换空冷五次不裂 | 900热交换空冷五次不裂 | 1000热交换空冷五次不裂 |
| 体积密度,g/cm3 | ≥3.0 | ≥3.2 | ≥3.3 | ≥3.4 | ≥3.5 |
| 堆积密度,g/cm3 | ≥1.7 | ≥1.8 | ≥1.9 | ≥1.92 | ≥1.95 |











| 耐火温度: | 1580℃~1770℃ |
| 材质: | 高纯氧化铝 |
| 导热系数(常温): | 0.03 |
| 等级: | 优级品 |
| 抗弯强度: | 100 |
| 抗压强度: | 120 |
| 使用温度: | 1100以上 |
| 品牌: | 精填牌 |