alumina ceramic tube
Ceramic tubes are used when conditions exclude the use of metal, either for chemical reasons or because of excessive temperatures.Their main applications are between 1000 and 1800°C. They may be in directly contact with the medium or may be used as a gas-tight inner sheath to separate the thermocouple from the actual metal protection tube.
Ceramic tubes should be mounted in a hanging position above 1200°C to prevent distortion or fracture due to bending stresses. Evenhair-line cracks can lead to contamination of the thermocouple resulting in drift or failure.
Advanced ceramic tube provide a broad range of engineering properties: High Temperature-Superior Strength-Corrosion
Resistance-Thermal & Electrical Insulation along with other specialized characteristics.
Custom Ceramic Rod & Ceramic Tube Manufacturer
• Tolerances held to ± .0001
• Diameter .007 to 3.00”
• Thickness .010 up to your requirement
-Precision Close, Tight Tolerances,
-Ceramic Rods & Ceramic Tube machined to customer specifications-Prototype to Production-Intricate ceramic machining-Alumina is widely used in automotive,petro-chemical, fluid control material transfer,industry, electrical and electronic,
semiconductor.
Ceramic tubes should be mounted in a hanging position above 1200°C to prevent distortion or fracture due to bending stresses. Evenhair-line cracks can lead to contamination of the thermocouple resulting in drift or failure.
Advanced ceramic tube provide a broad range of engineering properties: High Temperature-Superior Strength-Corrosion
Resistance-Thermal & Electrical Insulation along with other specialized characteristics.
Custom Ceramic Rod & Ceramic Tube Manufacturer
• Tolerances held to ± .0001
• Diameter .007 to 3.00”
• Thickness .010 up to your requirement
-Precision Close, Tight Tolerances,
-Ceramic Rods & Ceramic Tube machined to customer specifications-Prototype to Production-Intricate ceramic machining-Alumina is widely used in automotive,petro-chemical, fluid control material transfer,industry, electrical and electronic,
semiconductor.
|
Alumina Ceramic Property
|
|||||
|
Property
|
Unit
|
92% Alumina Ceramic
|
95% Alumina Ceramic
|
99% Alumina Ceramic
|
|
|
Density
|
g/cm3
|
≥3.63
|
≥3.68
|
≥3.83
|
|
|
Water absorption
|
%
|
O
|
O
|
O
|
|
|
Sintering temperature
|
°C
|
1500-1700
|
1600-1800
|
1700-1800
|
|
|
Hardness
|
HV
|
≥1400
|
≥1500
|
≥1650
|
|
|
Flexural strength
|
Kgf/cm2
|
3000
|
3000
|
3000
|
|
|
Compressive strength
|
Kgf/cm2
|
24000
|
25000
|
26000
|
|
|
Fracture toughness
|
Map.m3/2
|
3~4
|
3~4
|
4~5
|
|
|
Maximum temperature
|
°C
|
1600
|
1700
|
1800
|
|
|
Coefficient of thermal expansion
|
/°C
|
8*10-6
|
8*10-6
|
8*10-6
|
|
|
Heat shock
|
T(°C)
|
220
|
220
|
220
|
|
|
Thermal conductivity
|
W/m.k(25-300°C)
|
25 14
|
25 14
|
25 14
|
|
|
20°C
|
|
>1012
|
>1012
|
>1012
|
|
