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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.

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Data sheet

MaterialsAl2O3
Purity95%, 99%, 99.7%, or customized
SizePer request or drawing

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Alumina (Al2O3) Ceramic Ring consists of high-purity alumina (Al₂O₃), providing outstanding strength, hardness, and thermal stability. Recognized for their excellent electrical insulation, resistance to high temperatures, oxidation, and corrosion, alumina ceramics are extensively utilized in extreme conditions. These rings are perfect for uses that need durability and structural integrity, including mechanical seals, sensors, electronics, and instrumentation. Moreover, alumina ceramic rings are used in sectors such as communications, transportation, and engineering because of their robustness and high-performance qualities. Their capacity to endure harsh conditions renders them vital for crucial parts in challenging applications.
Alumina (Al2O3) Ceramic Ring

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.

Alumina (Al2O3) Ceramic Ring 

Where to Buy Alumina (Al2O3) Ceramic Ring in Bulk?

Heeger Materials Inc., a professional supplier, and manufacturer of high-quality Alumina Ceramics (Al2O3) products including Alumina (Al2O3) Ceramic Ring leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

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