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Wholesale high wear resistance 95% al2o3 alumina vacuum ceramic sleeve tube corrugated pipe


Alumina ceramic sleeve tube is a high-performance ceramic product made from high-purity alumina powder through advanced manufacturing processes. It has excellent properties such as high hardness, wear resistance, chemical resistance, and thermal stability. The alumina ceramic sleeve tube is often used in industrial applications that require high levels of precision and durability. It can be used as a protective sleeve for delicate components in machinery or as a lining for equipment that comes into contact with corrosive materials. The smooth surface of the alumina ceramic sleeve tube allows for minimal friction and wear, making it ideal for applications where consistent performance is vital. Its length can vary depending on the specific requirements of the application, with standard sizes typically being around 100mm to 300mm long.

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Wholesale high wear resistance 95% al2o3 alumina vacuum ceramic sleeve tube corrugated pipe

We can do OEM and OBM according to your drawing and requires​:​​​​​​

Product description:

Ordinary alumina ceramics are classified into 99 porcelain, 95 porcelain, 90 porcelain, 85 porcelain, etc. according to the content of Al2O3. Sometimes the content of Al2O3 is 80% or 75%, which is also classified into ordinary alumina ceramic series. Among them, 99 alumina ceramic materials are used to make high temperature crucibles, refractory furnace tubes and special wear-resistant materials, such as ceramic bearings, ceramic seals and water valve sheets; 95 alumina ceramics are mainly used as corrosion-resistant and wear-resistant parts; In addition, due to the incorporation of part of talc, the electrical properties and mechanical strength are improved, and it can be sealed with metals such as molybdenum, niobium and tantalum, and some are used as electric vacuum devices.

Specification :

ceramic alumina tube , alumina content 95% - 99.7%,White or Ivory ,Wear-resisting and acidproof alkali corrosion , High temperature (1600-1700 degree centigrade). Good chemical stability,high insulation, strong adsorption capacity, is a nice electrical insulation and wear-resisting material.

Composition AL95 AL99
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

Properties of alumina ceramics tube:
1, high hardness
The Rockwell hardness of alumina ceramics is HRA80-90, which is second only to diamond and far exceeds the wear resistance of wear-resistant steel and stainless steel.
2, good wear resistance
The wear resistance of alumina ceramics is 266 times that of manganese steel and 171.5 times that of high chromium cast iron. Under the same working conditions, it can extend the service life of the equipment by at least ten times.
3. Light weight
The density of alumina ceramics is 3.7~3.95g/cm°, which is only half of steel, and can also greatly reduce the load of equipment.

Advantages of alumina ceramic tube:
1, alumina ceramic tube has excellent insulation. The high-frequency loss is relatively small, and the high-frequency insulation is good.
2, alumina ceramic tube has the characteristics of heat resistance, small thermal expansion coefficient, high mechanical strength and good thermal conductivity.
3, alumina ceramics tube have chemical corrosion resistance and molten gold properties.
4, alumina ceramics tube are non-flammable, not easy to rust and strong and not easy to damage, with other organic materials and metal materials incomparable good quality.
5, the wear resistance of alumina ceramics is superior, the hardness is the same as corundum, can reach the Mohs hardness of 9, its wear resistance can be matched with superhard alloy.

Application of alumina ceramic tube:
1.Alumina ceramics are widely used in machinery, optical fiber, cutting tools, medical, food, chemical, aerospace and other fields.

Company Information:

In Stock Thermal Analysis High Purity Alumina Ceramic Crucible

In Stock Thermal Analysis High Purity Alumina Ceramic Crucible

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