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Specifications:
Alumina Ceramic Tube, Thermocouple Tube, Ceramic Insulator .
Out Dia.:3mm to 100mm, Length:10mm to 1300mm.
Material: 95% to 99.5% Alumina, Single or Multi-bore ceramic tube
Features:
High wear resistance, corrosion resistance, high intensity, high precision, good smoothness, polishing surface , good air-proof, etc.
Remarks:
Production is customizable, for more information, please do not hesitate to tell me.
Sizes, Tolerance, Surface Roughness, Concentricity, Perpendicularity and other specifications could be according with your requirements.
The alumina tubes are widely used in thermocouple protections and some are used in furnaces. We could produce both open for two ends, and one open, the other closed.
Property
Items | Unit | 95% Al2O3 | 99.5% Al2O3 |
Density | g/cm3 | 3.7 | 3.9 |
Flexural Strength | MPa | 313 | 340 |
Compressive Strength | MPa | 3400 | 3600 |
Modulus of Elasticity | GPa | 350 | 380 |
Impact Resistance | MPa·m1/2 | 4 | 5.1 |
Weibull Modulus | m | 10 | 10 |
Vickers Hardness | HV0.5 | 1800 | 1900 |
Thermal Conductivity | W/mk | 24 | 27 |
Highest Application Temperature | °C | 1600 | 1750 |
Volume Resistivity at 20°C | Ω.cm20 | >1014 | >1014 |
Dielertric strength | KV/mm | 20 | 25 |
Thermal expansion | X10-6/K | 5.0-8.3 | 5.4-8.3 |
Alumina Ceramic Tube
