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1:excellent wear resistant
2:low water absorption
3:high mechanical strength
4:short lead time
5:acid and alkali ceramic
6:high temperature resistant ceramic
7:corrosion resistance ceramic
8:oxidation resistance ceramic
| Material | 70 | 75 | 80 | 85 | 90 | 95 | 99 |
| Al2o3 | 65% | 75% | 80% | 85% | 90% | 93% | 99.3% |
| Fe2o3 | ≤ 4 | ≤ 2 | ≤ 1.5 | ≤ 1.0 | ≤ 0.5 | ≤ 0.5 | ≤ 0.3 |
| Desnsity：g / cm3 | 2.8 | 3.10 | 3.20 | 3.40 | 3.50 | 3.60 | 3.85 |
| Vickers Hardness | 7.5 | ≤ 7.8 | ≥ 8 | ≥ 8.6 | ≥ 8.8 | 9 | 9 |
| Water Absorption：% | ≤ 4 | ≤ 1 | ≤ 0.5 | ≤ 0.2 | ≤ 0.1 | ≤ 0.085 | ≤ 0.01 |
| Refractoriness：℃ | 1300 ℃ | 1400 ℃ | 1450 ℃ | 1580 ℃ | 1600 ℃ | 1650 ℃ | 1800℃ |
| Flexural Strength:Mpa | 80 | 100 | 150 | 180 | 200 | 240 | 280 |
| Wear Rate（ at room temperature, | ≤ 5 | ≤ 4.5 | ≤ 3.5 | ≤ 3 | ≤ 2.5 | ≤ 1 | ≤ 0.5
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alumina ceramic products
