Alumina ceramic tube/pipe/rod/roller
Main production of fire assay crucible,Graphite crucible,Silicon carbide crucible.Also accept OEM and ODM.
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Main production of fire assay crucible,Graphite crucible,Silicon carbide crucible.Also accept OEM and ODM.
The Alumina Ceramic Thermocouple Protection Tubes are made of high purity alumina oxide with one end closed. They are mainly used to divide the thermometric element from outside and protect the element from corrosion, oxidation, and damage by air, hydrogen, steam, inert gas, carbon monoxide, vacuum environment. The max applicable temperature is 1800℃, while the max continuous operation temperature is 1700℃.
Alumina Thermocouple protection tubes are available as a closed end tube with a reusable stainless steel coupling device. This device has 2 ways to use: the thermocouple protection tube can be hung by the flange or attached via the threaded end of the coupling device.
Features:
1. Materials: 95% alumina oxide, 99.5% alumina oxide
2. Color: white, pink, light yellow
3. Shape: one end closed
4. Application: Used for all kinds of electric heating equipment and electric equipment, and textile machinery
5. Temperature Max. 1400C°
Advantage:
1. Good smooth and high strength
2. A variety of specifications available
3. OEM, ODM and OBM are welcomed
Performance For Industrial Ceramic
| Item | Unit | Steatite Ceramic | 95Al2O3 | 99Al2O3 | 99.7Al2O3 | |
Physical Characteristics | Bulk density | g/cm3 | 2.7 | 3.6 | 3.8 | 3.9 |
| Water absorption | % | 0 | 0 | 0 | 0 | |
Mechanical Characteristics | Flexural strength | Mpa | 145 | 320 | 340 | 350 |
| Hardness Vickers | Gpa | 5.7 | 12.2 | 13.5 | 14 | |
| Elastic modulus | Gpa | 120 | 280 | 320 | 320 | |
| Poisson’s ratio | - | 0.21 | 0.22 | 0.23 | 0.23 | |
Thermal Characteristics | Linear expansion coefficient | (20-500 C) 10-6/ C | 7.9 | 7.1 | 7.2 | 7.2 |
| Thermal conductivity | w/(m.k) | 2.5 | 16 | 24 | 28 | |
| Specific Heat | *10-3J/(kg*K) | 0.75 | 0.78 | 0.78 | ||
Electrical Characteristics | Dielectric constant(1MHZ) | - | 6.2 | 9 | 9.4 | 9.7 |
| Dielectric loss angle | *10-4 | 18 | 15 | 5 | 0.0001 | |
| Dielectric strength | *106V/m | 18 | 12 | 15 | 8.7 | |
Application :
Widely used in lamps and lanterns, electronic appliances, blast nozzle, auto parts, wear-resistant parts of insulating material, etc
We can do OEM and OBM according to your drawing and requires
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