3£¬ Alumina£¨AL2O3£©:
Alumina£¨AL2O3£©enjoys advantages of chemical stability, high hardness and anti-abrasion. So far£¬ the mostly used Alumina£¨AL2O3£©on mechanical seals is Alumina 99%. However, the material is just suitable to errosion-reistant mechanical seals for its poor anti-impact and fragile charateristics
Alumina£¨AL2O3£©99%¡¯s Specification
Index |
Unit |
Value |
Density |
g/cm3 |
3£®9 |
Rockwell Hardness |
HRA |
87 |
Porosity |
% |
£¼ 0.4 |
Thermo-conductive Coefficient |
W/M.K |
16.7 |
Tensile Strength |
g/cm3 |
2800 |
|
