High-Purity Alumina (Al2O3) Tubes | Advanced Ceramic Materials

AC0915 Alumina Tube, Aluminum Oxide Tube, Al2O3

Catalog No. AC0915

Size Diameter 1~100 mm

Material Al2O3

Purity 99%, 99.8%

Density 3.8~3.9 g/cm3

Alumina Tube Description

Alumina Tube, made from high-purity aluminum oxide (Al2O3) ceramic, is widely used across various industries due to its excellent properties. Alumina tubes exhibit superb performance in electrical insulation, high chemical resistance, and low thermal expansion. These ceramic tubes are extensively utilized in industrial ovens, machines, and as protectors for high-temperature thermocouples. High-purity alumina materials are also ideal for components used in CVD, ion implants, photolithography, and semiconductor manufacturing.

Alumina Tube Specifications

Composition	AL97	AL98
AL2O3 Content	97%	99.80%
Color	White	Ivory
Tensile	30 Kpsi	32 Kpsi
Flexural	55 Kpsi	60 Kpsi
Compressive	300 Kpsi	330 Kpsi
Density	3.7 g/cc	3.92 g/cc
Hardness	13.8 HV, Gpa	18 HV, Gpa
Thermal Conductivity	25 W/(m K)	32 W/(m K)
C.O.T.E.	77 In / In°C (x10^7)	78 In / In°C (x10^7)
Working Temperature	1500 °C	1750 °C
Dielectric Constant	9.5	9.8
Volume Resistivity	>10^14 Ohm-cm	>10^15 Ohm-cm
Dielectric Strength	16 KV/mm	20 KV/mm

*This chart demonstrates the typical properties of common alumina materials used to produce our alumina parts. The properties of customized aluminum oxide parts may vary due to different processes. Advanced Ceramic Materials (ACM) can produce alumina ceramic tubes according to your specified instructions or strive to meet your requirements. Custom sizes are available.

Key Features and Benefits

High-Temperature Resistance: Can withstand temperatures up to 1750°C.
Chemical Resistance: Excellent resistance to acids, alkalis, and other corrosive substances.
Electrical Insulation: Outstanding electrical insulating properties.
Durability: High hardness and wear resistance.
Low Thermal Expansion: Minimizes the risk of thermal shock.

Applications

Alumina ceramic tubes are versatile and used in a wide range of applications:

Semiconductor Industry: Ideal for making parts for CVD, ion implants, photolithography, and semiconductor components.
Traditional Industries: Used in products such as injector tubes, gas nozzles, and insulators.
Industrial Furnaces: Suitable for high-temperature environments due to its ability to maintain hardness.
Thermocouple Protection: Acts as protectors for high-temperature thermocouples.
Chemical Industry: Utilized for its high corrosion resistance in various chemical processing equipment.

Packaging

Our alumina tubes are carefully handled to prevent damage during storage and transportation, ensuring they remain in their original high-quality condition.

Frequently Asked Questions (FAQs)

What is the maximum temperature these alumina tubes can withstand?
- Our alumina tubes can withstand temperatures up to 1750°C.
Do you offer custom sizes and shapes?
- Yes, we offer custom sizes and shapes to meet specific requirements. Please contact us for more details.
What is the purity level of the alumina used in these tubes?
- The alumina used in our tubes has a purity level of up to 99.8%.

Ordering Information

Order alumina tubes in the desired size and quantity. For bulk orders or custom requirements, please contact us for more details.