| Name | Furnace | |
| Chemical composition | Al2O3 | ≥99 |
| R2O | ≤0.2 | |
| Fe2O3 | ≤0.1 | |
| SiO2 | ≤0.2 | |
| Bulk Density（g/cm2） | ≥3.80 | |
| Porosity（%） | ＜1 | |
| Bending strength（Mpa） | ＞350 | |
| Compressive strength（Mpa） | ＞12000 | |
| Dielectric constant∑（1MHz） | 2 | |
| Highest temperature（℃） | 1800 | |
Lining for high temperature furnaces, chemical heating reactor shell, Thermocouple Protection Tube。
| Standard | Use | ||
| Dimensions(mm) | Good chemical stability, air tightness and high insulation for furnace linings and chemical heating reactor shell, and thermocouple protection tube | ||
| OD | Height | Wall thickness | |
| 25～180 | ～1200 | ＞2.5 | |
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