- Connectors[2]
- Electrical Wires[1]
- Cap Making Machinery Parts[5]
- Multimeters[1]
- Water Meters[3]
- Instrument Parts & Accessories[5]
- Measuring & Analysing Instrument Stocks[1]
- Other Measuring & Analysing Instruments[5]
- Pressure Gauges[1]
- Pressure Transmitters[6]
- Temperature Instruments[6]
- Flanges[1]
- Other Ceramic Fiber Products[3]
- Ceramics[6]
- Other Metals & Metal Products[1]
- Contact Person : Ms. HU Emily
- Company Name : Chongqing Duchina Temperature Instrument Co., Ltd.
- Tel : 86-23-68215733
- Fax : 86-23-68219865
- Address : Chongqing,Beibei,290 Fengshixing Road
- Country/Region : China
- Zip : 400711
High Temperature Ceramic and Mullite Ceramic Insulators Tube
Related Product Searches:High Temperature Ceramic and Mullite Ceramic Insulators Tube,High Quality Mullite Ceramic Insulators Tube,Mullite Ceramic Insulators Tube duchina
1. Product details
Ceramic and Mullite Ceramic Insulators Tube/Alumina Tube
Standard Alumina Insulators & Mullite insulators Products available in:
1, 2, and 4 Hole Solid Alumina 99.8% ceramic and Mullite ceramic Insulators Tube.
Alumina 99.8%: 99.8% Dense Alumina (Al2O3)
Furnace tube
OD(mm) | 25~30 | 31~40 | 41~50 | 51~60 | 61~70 | 71~80 | 81~90 | 91~100 |
ID(mm) | 19~23 | 24~32 | 33~40 | 41~50 | 51~60 | 61~70 | 71~80 | 81~90 |
L(mm) | 200~1600 | |||||||
Main performance index
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 | 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 | 1800 | 1400 |
