Detailed Product Description
Ceramic seal faces have the property of the resistant-high-temperature,resistant-corrosion,resistant-wearing and good sealing and are widely used in spacecraft,machinery,metallurgy,printing and dyeing, foodstuff,pharmaceutical, auto industry and so on.
AI2O3 Ceramic physical property
|
Technical Parameter
|
Unit
|
95%
|
99%
|
99.5%
|
Content of Al2O3
|
%
|
95
|
99
|
99.5
|
Density
|
g/cm3
|
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
|
Coefficient of Heat Expansion
|
10-6/K
|
5.5
|
5.3
|
5.2
|
Thermal Conductivity
|
W/M.K
|
27.8
|
26.7
|
26
|
|