ceramic tube technical indicators
naterial |
65 porcelain | 75 porcelain | 80 porcelain | 85 porcelain | 90 porcelain | 95 porcelain | 99 porcelain |
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 hardulus | 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,erosion, 100 grinding） % | ≤ 5 | ≤ 4.5 | ≤ 3.5 | ≤ 3 | ≤ 2.5 | ≤ 1 | ≤ 0.5 |
