Features of ceramic seal faces
1. Classification: Al2O3-95, Al2O3-99
2. Color: white, black, red, beige
3. Composition: Al2O3>90%,Al2O3>98%
4. Porosity: <0.5, <0.4
Pictures of ceramic seal faces
physical property of ceramic seal faces
| Classification | Al2O3-95 | Al2O3-99 |
| Composition | Al2O3≥ 90% | Al2O3≥ 98% |
| Colour | White Beige Red Black | White Beige Black |
| Density (g/cm3) | ≥ 3.6 | ≥ 3.8 |
| Porosity (%) | ≤ 0.5 | ≤ 0.4 |
| Rockwell Hardness (HRA) | ≥ 82 | ≥ 87 |
| Breaking Strength (KGF/CM2) | ≥ 2400 | ≥ 2600 |
| Stability of Thermal Vibration | ≥ 5 | ≥ 5 |
| Optical Flatness | ≤ 0.0009 | ≤ 0.0006 |
| Roughness | ≤ Ra0.4 | ≤ Ra0.2 |
| Light Band | ≤ 3 | ≤ 1 |
ceramic seal faces
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