Aluminum Oxide Ceramic
MGGS can supply Ceramic seal faces from the approved manufacturers, it has 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.
Typical Physical Property Sheet
|
Property |
Unit |
95% |
99% |
99.5% |
|
Content of Al2O3 |
% |
95 |
99 |
99.5 |
|
Density |
g/cm3 |
3.7 |
3.88 |
3.9 |
|
Hardness(Rockwell) |
HRA |
85 |
88 |
90 |
|
Porosity |
% |
<0.4 |
<0.2 |
<0.15 |
|
Fractural Strength |
Mpa |
250 |
310 |
350 |
|
Coefficient of Thermal Expansion |
10-6/K |
5.5 |
5.3 |
5.2 |
|
Thermal Conductivity |
W/M.K |
27.8 |
26.7 |
26 |
