Our zirconia ceramic rings represent the pinnacle of sealing technology, combining exceptional wear resistance, chemical inertness, and thermal stability for the most challenging mechanical applications. Manufactured from high-purity yttria-stabilized ZrO₂, these precision ceramic components outperform traditional materials in extreme environments where metals and polymers fail.
Key Features & Benefits
✔ Superior Mechanical Strength - 3× tougher than alumina ceramics
✔ Exceptional Wear Resistance - Vickers hardness of 1200-1300 HV
✔ Corrosion Immunity - Resists acids, alkalis, and solvents
✔ High-Temperature Capable - Stable up to 800°C continuous operation
✔ Low Friction Coefficient (0.1-0.15) for smooth operation
Critical Industrial Applications
1. Pump & Valve Systems
High-pressure sealing rings for chemical pumps
Wear-resistant bushings in control valves
Corrosion-proof O-rings for offshore equipment
2. Semiconductor Manufacturing
Plasma-resistant rings for etching chambers
Ultra-clean components for wafer handling
Non-magnetic seals for ion implanters
3. Medical & Dental Equipment
Sterilizable O-rings for autoclaves
Biocompatible rings for implantable devices
Precision bearings for dental handpieces
4. Automotive & Aerospace
Fuel system seals resistant to biofuels
Turbocharger components
Spacecraft fluid handling systems
5. Food & Pharmaceutical
FDA-compliant sealing rings
CIP/SIP-resistant components
Non-contaminating wear parts
Properties | Units | Steatite Ceramic | Cordierite Ceramic | Mullite Ceramic | 95% Al2O3 | 99% Al2O3 | Zirconia Ceramic | Silicon Nitride |
Colour | White | Yellow | White | White | Ivory | White | Grey | |
Density | g/cm3 | 2.7 | 1.9 | 2.6 | 3.5 | 3.85 | 6 | 3.2 |
Flexural Strength | Mpa | 140 | 30 | 120 | 280 | 340 | 1150 | 600 |
Compressive Strength | MPa | 900 | 350 | 500 | 2100 | 2200 | 2500 | 2500 |
Max Use Temperature | °C | 1000 | 1200 | 1300 | 1400 | 1650 | 1500 | 1800 |
Thermal Condutivity | W(m.K) | 2~3 | 1.3~1.8 | 2~6 | 16~28 | 19~30 | 2.5 | 20 |
Thermal Expansion Cofficient | 10-6/°C | 7 ~ 9 | 1.5~3.5 | 5~6 | 6.5~7.5 | 6~8 | 8~10 | 3~4 |
ThermalShock Resistance | △TC | 100 | 300 | 150 | 140 | 150 | 250 | 600 |
Specific Heat | J/kg.K | 850 | 800 | 900 | 950 | 950 | 500 | 500 |
Dielectric Strength | KV/mm | 20 | — | 30 | 12 | 10 | 5 | 20 |
Dielectric Constant | Er | 6 | — | 8 | 9 | 9 | 12 | 6 |
Product Advantages
● Certificates: ISO & SGS
● OEM & ODM: OEM & ODM service is available
● Strict testing procedures :Meeting the requirements of the product design and process, providing reliable testing data.
● Short Delivery time:If less than 1000 pieces, it only takes around 5 days. We also stock some standard-sized products, if you need urgently, we can delivery very soon.
● Best ex-factory price
● Worldwide customers
● Customized according to needs
● Continuous research and development of new products
● Customer service:If you find some quality problem, please contact us, we’ll deal with it as soon as possible.
Our customers have a wide range of processing choices for transportation mode.
Yixing Shengda Refractory Ceramic Co., Ltd, established in 1995, Yixing, China with an area of 4,000 square meters and fixed assets of over 1 million US dollars, is a professional manufacturer of Steatite Ceramic Parts, Alumina Ceramic Parts, Cordierite Ceramic Parts, Ceramic Band Heater Insulators, Ceramic Terminal Block, Thermostat Ceramic Parts, Zirconia Ceramics Parts, Ceramic Heater Plugs, etc.
Shengda Ceramic equipped with CAD/CAXA/Solidworks software to provide professional OEM & ODM service.
Looking forward to co-operating with the customers from all over the world!
