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Alumina (Al2O3) Ceramic Ring
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Alumina (Al2O3) Ceramic Ring offers high hardness, mechanical strength, temperature stability, thermal conductivity, insulation, and corrosion resistance. It is an excellent material for various applications such as mechanical seals, electronics, instrumentation, etc. Heeger Materials provides top-quality Al2O3 Ceramic rings at competitive prices, offering specialized and customized services.
Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.
Data sheet
| Materials | Al2O3 |
| Purity | 95%, 99%, 99.7%, or customized |
| Size | Per request or drawing |
More info
Alumina (Al2O3) Ceramic Ring is made of aluminum oxide ceramic - a fine ceramic material that is widely used in various industries. Aluminum oxide ring has superb performance in electrical insulation, high chemical resistance, and low thermal expansion.
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Alumina (Al2O3) Ceramic Ring Specifications
Composition | UNIT | HM-Al95 | HM-Al99 | HM-Al997 |
AL2O3 Content | % | 95 | 99 | 99.7 |
Color |
| White | Ivory | Ivory |
Tensile Strength | Kpsi | 32 | 38 | 36 |
Flexural Strength | Kpsi | 52 | 55 | 54 |
Compressive Strength | Kpsi | 300 | 377 | 350 |
Density | g/cc | 3.70 | 3.90 | 3.92 |
Hardness | HV, GPa | 13.8 | 17.2 | 18 |
Thermal Conductivity | W/(m K) | 25 | 30 | 30 |
Coefficient of Thermal Expansion | In / In°C (x10-6) | 7.7 | 7.8 | 7.8 |
Working Temperature | °C | 1500 | 1650 | 1750 |
Dielectric Constant |
| 9.5 | 9.7 | 9.8 |
Volume Resistivity (25°C) | Ohm-cm | >1014 | >1014 | >1014 |
*Customized services can be available according to specific drawings.
Alumina (Al2O3) Ceramic Ring Advantages
- High-temperature resistance
- Good gear resistance
- Good corrosion resistance
- High hardness
- Low thermal expansion
- Low friction coefficient
Alumina (Al2O3) Ceramic Ring Applications
- Used as seal rings in packaging equipment and high-temperature environments.
- Used as insulators in electrical components, such as high voltage insulators, spark plugs, and electrical connectors.
- Used in heating elements and furnace components due to their excellent thermal conductivity and resistance to high temperatures.
- Used for making parts for CVD, ion implants, photolithography, and semiconductor parts.
- Used as a material for the chemical industry due to its high corrosion resistance.
Alumina (Al2O3) Ceramic Ring Packing
Alumina (Al2O3) Ceramic Rings are carefully packaged with adhesive-free surface protection tape and cardboard boxes to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
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