<10kv
Ivory and White
95-99.7%
1500-1800c
1770< Refractoriness< 2000
Long Time Materials
Refractory Material
Rod
Alumina Cement
RY
Wooden Case
99% Alumina
China
8547100000
Product Description
High pure 99% Al203 Alumina Ceramic Tube Alumina Tube Aluminum Oxide Ceramic Thermocouple Pipe
High purity ceramic alumina tube parameters:
1.Material : High purity alumina oxide 95%-99%
2.Application:
4. Diameter from 1mm to 120mm,Length from 100mm to 2000mm,
multi bores tubes can be made.
5. Max working temperature 1800.
6. Out surface can be grinded drilling hole to make tight tolerance and right instillation.
7.Large quantity in stock makes fast delivery and competitive prices.
8.OEM and ODM are welcomed
Main performance index about alumina ceramic tube:
High purity ceramic alumina tube parameters:
1.Material : High purity alumina oxide 95%-99%
2.Application:
Mainly used in thermalcouple temperature, liquid steel continous temperature, various industrial furnace of alumina ceramic tube.
Especially widely used in petrochemical, spinning, electric, instrumentation, mechanical workout, military project etc industry of alumina ceramic tube.
3.Good smooth and high strength4. Diameter from 1mm to 120mm,Length from 100mm to 2000mm,
multi bores tubes can be made.
5. Max working temperature 1800.
6. Out surface can be grinded drilling hole to make tight tolerance and right instillation.
7.Large quantity in stock makes fast delivery and competitive prices.
8.OEM and ODM are welcomed
Main performance index about alumina ceramic tube:
| Project | Test the condition | Unit | 99 porcelain | 95 porcelain | Talc porcelain | |
| Backbone | 99%AL2O3 | 95%AL2O3 | MgO.SiO2 | |||
| Physical property | Density of volume | Normal atmospheric temperature | g/cm3 | 3.8 | 3.6 | 2.8 |
| Airtight | Normal atmospheric temperature | . | .Pass | Pass | - | |
| Absorbing water rate | Normal atmospheric temperature | % | 0 | 0 | 0 | |
| Temperature that frit | °C | 1800 | 1650 | 1350 | ||
| Mechanical performance | Rockwell hardness | Normal atmospheric temperature | HRA | 88 | 86 | 76 |
| Resist the intensity of turning back | Normal atmospheric temperature | Mpa | 350 | 320 | 150 | |
| Compression strength | Normal atmospheric temperature | Mpa | 1300 | 1200 | 900 | |
| Hot performance | Use temperature at most | °C | 1700 | 1600 | 1200 | |
| Heat resistant shaking | 20O°C-1100O°C | 10Num | Pass | Pass | Pass | |
| Hot coefficient of expansion | 20O°C-80O°C | ×10-6mm/°C | 6.5-8.5 | 6.5-8.0 | 5.0-6.2 | |
| Heat-conduction rate | 25°C | W/m.k | 29 | 25 | 2.9 | |
| 300°C | W/m.k | 18 | 13 | 2 | ||
| Dielectric constant | The medium lossing | 1MHz2O°C | ×10-4 | ≤2.5 | ≤4 | ≤8.0 |
| The angle tangent is worth | 1MHz8O°C | ×10-4 | ≤3.5 | ≤4.2 | - | |
| Dielectric strength | Normal atmospheric temperature | KV/mm | 15 | 16 | 20 | |
| Dielectric constant | 1MHz2O°C | 9-10.5 | 9-10 | ≤7.5 | ||
| Resistivity of volume | 2O°C | Ω.cm | >1012 | >1012 | >1013 | |
| 10O°C | Ω.cm | 1012-1013 | 1012-1013 | 1010-1011 | ||
| 30O°C | Ω.cm | >1012 | 3.1×109 | 5×108 | ||
