- Temperature Instruments[6]
- Water Meters[3]
- Cap Making Machinery Parts[5]
- Measuring & Analysing Instrument Stocks[1]
- Pressure Gauges[1]
- Multimeters[1]
- Pressure Transmitters[6]
- Other Measuring & Analysing Instruments[5]
- Instrument Parts & Accessories[5]
- Electrical Wires[1]
- Other Metals & Metal Products[1]
- Ceramics[6]
- Other Ceramic Fiber Products[3]
- Connectors[2]
- Flanges[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 Al2O3 Ceramic Tubes for Furnace and gas Boiler
Related Product Searches:High Temperature Al2O3 Ceramic Tubes for Furnace and gas Boiler,High Quality Al2O3 Ceramic Tubes,Al2O3 Ceramic Tubes
1. Product details
High Temperature Al2O3 Ceramic Tubes in Furnace and gas Boiler
Al2O3 Ceramic Tubes is made of alumina ceramic material and Fired through high temperature
Applications: Industrial Ceramic Tubes widely used in the high corrosive and high-temperature environment like thermal power.
1. Kiln furniture
2. Furnace work tubes
3. Vacuum furnace parts
4. Electrical insulators
5. Heating element supports
6. Temperature measurement
Main Features:
• Excellent thermal conductivity
• Excellent thermal shock resistance
• Low wetting by alumina
• Available in a wide variety of formulations
• Excellent high temperature and abrasion resistance
• Excellent oxidation resistence
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 |
