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Alumina Tube

Catalog No.CO0101
SizeDiameter 1~100 mm
MaterialAl2O3
Purity99%, 99.8%
Density3.8~3.9 g/cm3

Stanford Advanced Materials provides technical ceramic tubes such as alumina tubes with high purity, tight dimensional tolerance and competitive price. Our alumina tube products with diameter from 1mm to 100mm and purity up to 99.8% will fulfil most of the requirements. Custom manufacturing for special shapes are always available.

More details

Alumina as a fine ceramic material is widely used in a lot of industries. Alumina tubes has superb performances in electrical insulation, high chemical resistance and low thermal expansion and these ceramic tubes are widely used in industrial ovens and machines. High purity alumina materials are excellent for making alumina components for CVD, ion implants, photolithography, and semiconductor manufacturing. In traditional industries, alumina tubes are ideal for products such as injector tubes and insulators. Alumina tubes are also widely used as protector for high temperature thermal couples.


Typical materials of alumina ceramic tubes.

Composition

UNIT

AL60

AL95

AL98

AL2O3  content

%

96

99.5

99.8

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

C.O.T.E.

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

>10^14

>10^14

>10^14

 




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