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alumina ceramic tube

Categories alumina ceramic
Place of Origin: CHINA
Brand Name: HIGHBORN
Model Number: HBM
Certification: RoHS
Price: USD0.2-10/PC
Packaging Details: wooden packing
Delivery Time: 25-30days
Payment Terms: EXW,FOB,CIF,CNF
MOQ: 100PCS
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alumina ceramic tube

1. High purity alumina
2. Low tolerance
3. 3.8g/m3 high density
4. 1800 high temp


Technical Data for Alumina Ceramic Tubes


Serial number

performance index

Measuring unit

High purity alumina

Alumina

High alumina

1

Al2O3

%

99.7

99.3

85

2

SiO2

%

less than0.1

3

Density

g/cm3

3.95

3.88

3.2

4

Water absorption

%

0

0.01

0.2

5

Cld compressive strength

MPa

450

350

200

6

20 °C leak rates

Torr/L.sec

less than10-11

less than10-11

less than10-11

7

Twisting in high temperature

mm

1700 °C

0.2 allowance

1600 °C

0.2 allowance

1400 °C

0.2 allowance

9

20—1000°C coefficient of thermal expansion

mm.10-6/degree Celsius.m

8.6

8.2

8.2

10

Thermal conductivity

W/m.k

25

25

25

11

Electric insulation strength

KV/mm

20

20

15

12

20 °C

direct current

insulating resistance

Ohm/cm

1014

1014

1014

13

High-temperature

insulation resistance

1000 °C

≥0.08

≥0.08

≥0.08

14

Thermal shock resistance

1300°C

≥0.02

≥0.02

≥0.02


1550°C 6 times not cracked

1550°C 6 times not cracked

1300°C 3 times not cracked

15

Maximum service temperature

degree Celsius

1900

1800

1400

Product Tags:

alumina ceramic

  

ceramic tube

  

ceramic pipe

  
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