Henan Mart Industry Co., Ltd.

alumina tube

alumina tube
Product Detailed

high quality,best service and competitive price

We offers 95% - 99.7%  High Purity Alumina Tubes. They are produced by slip casting, available as Closed One End or Open Both Ends round single bore tubes. Available Tube Diameter From 2 mm to 150 mm, tube length from 25mm to 2500mm.

Our protection tubes offer extreme high temperature stability under reducing, insert and high vacuum condition up to 1700C (99.7%). They also provide extreme wear, abrasion and chemical corrosion resistance under high temperature.

Composition

 

Unit

 95

992

997

 AL2O3

%

95

99.2

99.7

 Density

g/cc

3.68

3.82

3.85

 Flexural

Mpa

304

340

370

 Linear Expansion Coefficient

(×10-6/)(25-800)

7.4

7.6

7.7

 Hardness

Mohs Scale

9

9

9

 Thermal Contduct

cal/cm 2

0.048

0.051

 0.054

 Max Working Temperture

°C

1480

1650

1700 

 Color

 --

 Red

 Ivory

 Ivory

 Volume Resistivity

 Ohm-cm (x10 12 )

 1.8

 3.2

 3.4

 Porosity

 --

 0

 0

 0

 Dielectric Constant

 --

 



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