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Americen loved high purity alumina ceramic tube used in furnace
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Product Details
| Place of Origin | Henan, China | Brand Name | Kejia | |
| Model Number | KJ American loved high purity alumina ceramic tube used in furnace | Type | Insulating Ceramics | |
| Material | Alumina |
Product Description
Specifications
Alumina Ceramic tube1.Material: 95 - 99.7% alumina ceramic
2.Usage application: used in various furnace
High Purity Alumina Ceramic Tube .
Features:
1.Extreme high temperature stability under reducing, inert and high vacuum condition under high temperature up to 1800C.
2.Extreme wear and abrasion resistance.
3.Chemical corrosion resistance under high temperature.
4.High dielectric properties.
5.Gas tight for many applications to provide protective atmospheres or high vacuum at high temperature to eliminate contamination or impurity.
We mainly produce alumina tubes, rods and various industrial ceramic parts, which are mainly used in thermalcouple temperature, liquid steel continous temperature, various industrial furnace(containing vacuum furnace, carburizing furnace, wire furnace, atmosphere furnace etc), especially widely used in petrochemical, spinning, electric, instrumentation, mechanical workout, military project etc industry.
Items | performance index | Measuring Unit | High purity Alumina | 99 Alumina | 85 Alumina |
1 | Al2O3 | % | 99.7 | 99.3 | 85 |
2 | SiO2 | % | less than0.1 | — | — |
3 | Density | g/cm3 | 3.95 | 3.88 | 3.2 |
4 | Wter absorption | % | 0 | 0.01 | 0.2 |
5 | Cld compressive strength | MPa | 450 | 350 | 200 |
6 | 20 degree Celsius leak rates | Torr/L.sec | less than10-11 | less than10-11 | less than10-11 |
7 | Twisting in high temperature | mm | 1700 degree Celsius 0.2 allowance | 1600 degree Celsius 0.2 allowance | 1400 degree Celsius 0.2 allowance |
8 | Bonding in high temperature |
| 1700 degree Celsius non-caked | 1600 degree Celsius non-caked | 1400 degree Celsius non-caked |
9 | 20—1000 degree Celsius 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 degree Celsius direct current insulating resistance | Ohm/cm | 1014 | 1014 | 1014 |
13 | High-temperature insulation resistance | 1000 degree Celsius MΩ | ≥0.08 | ≥0.08 | ≥0.08 |
1300 degree Celsius MΩ | ≥0.02 | ≥0.02 | ≥0.02 | ||
14 | Thermal shock resistance |
| 1550 degree Celsius 6 times not cracked | 1550 degree Celsius 6 times not cracked | 1300 degree Celsius 3 times not cracked |
15 | Maximum service temperature | degree Celsius | 1900 |
|
Contact Us
- Zhengzhou Kejia Furnace Co., Ltd.
- Contact nameLily Li Chat Now
- Phone86-371-67826992
- AddressBeigang Industrial Park, Zhengshang Road, Zhengzhou, Zhengzhou, Henan
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