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99% 2 pcs of Al2O3 Alumina Ceramic Tube ID:22mm; OD:30mm; Length:1000mm

$339.88

Condition: New other (see details): A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second or a new, unused item with defects. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab … Read moreabout the condition
Country/Region of Manufacture: China
Brand: chineseoem
MPN: Does Not Apply

Out of stock

SKU: 10044-1 Categories: , , , Tags: , , , , , , , , , ,

Description

 

This is a listing for custom made Al2O3 ceramic tube ID:22mm; OD:30mm; Length:1000mm,

alumina ceramic tube:

1.Great mechanical strength.

2.Good heat resistant.

3.Good quality and best price.

4.Long life time.

 

1. We produce 95-99.7% alumina crucibles, boats, insulating parts, rods, wear resistance parts, high temperature ceramic parts etc of alumina ceramic tube products.
2. Mainly used in thermalcouple temperature, liquid steel continous temperature, various industrial furnace of alumina ceramic tube.
3. Especially widely used in petrochemical, spinning, electric, instrumentation, mechanical workout, military project etc industry of alumina ceramic tube.

Main performance index about alumina ceramic tube:

Project

Test the condition

Unit

99 porcelain

95 porcelain

Talc porcelain

Backbone

99%AL2O3

95%AL2O3

MgO.SiO2

Physical property

Density of volume

Normal atmospheric temperature

g/cm3

3.8

3.6

2.8

Airtight

Normal atmospheric temperature

 .

.Pass

Pass

—

Absorbing water rate

Normal atmospheric temperature

%

0

0

0

Temperature that frit

°C

1800

1650

1350

Mechanical performance

Rockwell hardness

Normal atmospheric temperature

HRA

88

86

76

Resist the intensity of turning back

Normal atmospheric temperature

Mpa

350

320

150

Compression strength

Normal atmospheric temperature

Mpa

1300

1200

900

Hot performance

Use temperature at most

°C

1700

1600

1200

Heat resistant shaking

20O°C-1100O°C

10Num

Pass

Pass

Pass

Hot coefficient of expansion

20O°C-80O°C

×10-6mm/°C

6.5-8.5

6.5-8.0

5.0-6.2

Heat-conduction rate

25°C

W/m.k

29

25

2.9

300°C

W/m.k

18

13

2

Dielectric constant

The medium lossing

1MHz2O°C

×10-4

≤2.5

≤4

≤8.0

The angle tangent is worth

1MHz8O°C

×10-4

≤3.5

≤4.2

—

Dielectric strength

Normal atmospheric temperature

KV/mm

15

16

20

Dielectric constant

1MHz2O°C

9-10.5

9-10

≤7.5

Resistivity of volume

2O°C

Ω.cm

>1012

>1012

>1013

10O°C

Ω.cm

1012-1013

1012-1013

1010-1011

30O°C

Ω.cm

>1012

3.1×109

5×108

 

 


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