Have the excellent performance of Good sealing, Excellent
Resistant-Corrosion, High-Temperature Resistance , High Mechanical
Strength, High hardness,Stable chemical property,Wear Resistant,
High Thermal Conductivity, Good Self-Lubrication,High purity alpha
alumina and low silica content, Small Tolerance Range , Long Time
Warranty, Stably and Professional Quality Control.
Surface Treatment: Polished, Alumina Purity: 95% to 99.5%, Color:
Sizes: Various sizes available
Packaging: Standard carton boxes and pallets .
(The Alumina Ceramic seal ring is sintered into the friction
material after high temperature.
Alumina can resist the general corrosion medium except hydrofluoric
acid and dense alkali. But fragility of Alumina is very high, so it
can be fractured with great changing temperature.
Have the property of good sealing, excellent resistant-corrosion,
resistant-high-temperature, high mechanical strength, wear
resistant, high thermal conductivity, good self-lubrication,used as
seal faces, bearings and tubes in spacecraft, machinery,
metallurgy, printing and dyeing, foodstuff, pharmaceutical, auto
industry and so on. When the sic faces are combined with graphite
faces the friction is the smallest and they can be made into
mechanical seals which are able to work in highest working
95%, 96%, 99%, 99.5%, 99.6% Alumina Ceramic Ring
Coefficient of thermal expansion
Insulation breakdown strength