Ceramic seal faces the property of the resistant-high-temperature,resistant-corrsion,resistant-wearing and good sealling and are widely used in spacecraft,machinery, metallurgy, printing and dyeing, foodstuff, pharmaceutical, auto industry and so on.
A1203 Ceramic Physical Property | ||||
Technical Parameter | Unit | 95% | 99% | 99.50% |
Content of A1203 | % | 95 | 99 | 99.5 |
Density | g/cm² | 3.7 | 3.88 | 3.9 |
Hardness | HRA | 85 | 88 | 90 |
Porosity Rate | % | <0.4 | <0.2 | <0.15 |
Fractural Strength | Mpa | 250 | 310 | 350 |
Coeffcient of Heat Expansion | 10-6/k | 5.5 | 5.3 | 5.2 |
Thermal Conducitivity | W/M.K | 27.8 | 26.7 | 26 |
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