What are Alumina Ceramic Tubes?
Aluminum oxide tubes are made from aluminum oxide (Al2O3) ceramic. Alumina is used as a fine ceramic material in many industries. Alumina tubes have excellent electrical insulation, high chemical resistance and low thermal expansion, these ceramic tubes are widely used in industrial ovens and machines. High purity alumina materials are ideally suited for the manufacture of alumina components for CVD, ion implantation, lithography and semiconductor manufacturing.
In traditional industries, alumina ceramic tubes are ideal for products such as jet tubes and insulators. Alumina tubes are also widely used as protectors for high temperature thermocouples.
Performance Parameters of Alumina Tubes
Item 97 alumina ceramic tube 98 alumina ceramic tube
Alumina content 97% 98
Color White Ivory
Tensile strength 30 Kpsi 32 Kpsi
Flexural strength 55 Kpsi 60 Kpsi
Compressive Strength 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)
Operating 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
Thermal shock resistance 200°C (in water) 200°C (in water)
The values in the table are typical parameters of the alumina tubes of Chiho-Hao Ceramics Company, which may vary from batch to batch!
Application of Alumina Ceramic Tube
Alumina ceramic tubes have a wide range of applications:
They are used to manufacture parts for CVD, ion implantation, lithography and semiconductor parts.
In traditional industries, alumina ceramics are ideal for products such as jet tubes, gas nozzles and insulators.
Used as a material in industrial furnaces for its ability to maintain hardness at high temperatures.
Used as protectors for high temperature thermocouples.
Used as a material in the chemical industry due to its high corrosion resistance.
The outstanding durability of alumina ceramic tubes in industrial applications where high temperature resistance is required makes it an ideal material for the heating industry. Heaters made from it are safer than electric heaters as they reach the preset temperature and maintain it. Its resistance to higher temperatures makes it an important part of temperature measuring devices and temperature control equipment.
Advantages of Aluminum Oxide Tubing
Aluminum oxide tubing is preferred over metals and polymers for extreme conditions. Its general properties and durability make it an important component of products that need to last but require low maintenance. This durable quality makes it the first choice for producing long-lasting products.
Other forms of pipe made from various polymers or metals may require frequent cleaning or replacement. Once aluminum oxide ceramic tubes are installed, they are guaranteed to last for years. The chemical resistance and non-conductivity of alumina tubes make them perfect protectors and insulators.