99%Al2O3 Ceramic Round Single Bore Alumina protection Tubes

99%Al2O3 Ceramic Round Single Bore Alumina protection Tubes
Model:DZFG
Brand:Duchin
Origin:Made In China
Category:Electronics & Electricity / Electronic Instrument / Meter & Instrument Parts
Label:99%Al2O3 tube , thermocouple pipe , Ceramic tube
Price: US $8.14 / pc
Min. Order:1 pc

Product Description

Specification

Maximum temperature range 3200F

Fair shock resistance, preheating recommended

Resists chemicals, will not contaminate platinum

Impervious to gasses at high temperature

Design

 

Unglazed. Admissible tolerance of the wall thickness is in compliance with DIN 40680 Part 1

degree of accuracy: Fine, with the following specifications: A straight rod, diameter 0.8 

x (d1-2s), must be able to be inserted to the bottom of the sheath tube. The rounded bottom of the 

sheath tube uniformly becomes the cylindrical section of the sheath tube.

 

Selection table

Performance index 

AL2O3 Purity %   

60

75

80

85

92

95

99

99.7

Volume density
(g/cm3) 

3.0

3.1

3.3

3.4

3.6

3.7

3.81

3.85

Flexural strength
(MPa)

205

280

215.7

230

312

304

340

370

Expansion coefficient
(×10-6/°C)
(25-800°C) 

7.1

7.6

7.6

7.6

7.5

7.3

7.6

7.6

Thermal conductivity
[w/(m.R)]

16

17

17

17

18

20

34

35

Insulation intensity
(KV/mm)

10

10

10

10

10

10

10

10

Volume resistivity
(Ω.cm)
20°C 

≥1014

≥1014

≥1014

≥1014

≥1014

≥1014

≥1014

≥1014

300°C 

≥1013

≥1013

≥1013

≥1013

≥1013

≥1012

≥1010

≥1010

Long-use temperature (°C)

1350

1000

1250

1290

1390

1480

1600

1700

Moh’s hardness

7.5

7.5

7.5

7.5

8.5

8.8

9

9

Refractoriness

1800

1700

1800

1850

1920

2000

2030

2040

 

 

Dimensional stability

 

The sheath tube is horizontally clamped into the tube furnace used for thermal shock resistance testing 

and is then heated to themaximum permissible continuous temperature. This procedure lasts for 30 

minutes.

More Images

99%Al2O3 Ceramic Round Single Bore Alumina protection Tubes 199%Al2O3 Ceramic Round Single Bore Alumina protection Tubes 2

Member Information

Chongqing Duchin Temperature Instrument Co.,LTD.
Country/Region:Chong Qin - China
Business Nature:Manufacturer
Phone:23392712
Contact:Judy (saleswoman)
Last Online:25 May, 2015