China Advanced Alumina Ceramic Tube Thermocouple Protection Tube C799 C795 C610 Insulator Tube, Find details about China Wear Resistant Alumina Ceramic Tube, Corundum Tube from Advanced Alumina Ceramic Tube Thermocouple Protection Tube C799 C795 C610 Insulator Tube
Material | Alumina Content | ||||
Characteristic | Unit | AL99.7 | AL99.5 | AL99 | AL95 |
Content | 99.7% | 99.5% | 99% | 95% | |
Color | Ivory white | Ivory white | Ivory white | Ivory white, | |
Density | g/cm | 3.94 | 3.9 | 3.8 | 3.75 |
Straightness | 2‰ | 2‰ | 2‰ | 2‰ | |
Hardness | Mohs hardness | 9 | 9 | 9 | 8.8 |
Water absorption | <=0.2 | <=0.2 | <=0.2 | <=0.2 | |
Flexural strength | (20ºC) Mpa | 375 | 370 | 340 | 304 |
Compressive strength | (20ºC) Mpa | 2300 | 2300 | 2210 | 1910 |
Thermal expansion coefficient | 10/ºC | 7.6 | 7.6 | 7.6 | 7.6 |
Dielectric strength | AC.kv/mn | 10 | 10 | 10 | 10 |
Dielectric loss | <0.0001 | <0.0001 | 0.0006 | 0.0004 | 0.001 |
Volume resistivity (20ºC) (300ºC) | Ω.cm3 | >1014 2*1012 | >1014 2*1012 | >1014 4*1011 | >1014 2*1011 |
Dielectric constant | 25ºC@1HM | 9.8 | 9.7 | 9.5 | 9.2 |
Thermal conductivity | W/m.k | 35 | 35 | 34 | 20 |
Long-term use temperature | ºC | 1700 | 1650 | 1600 | 1400 |
OD*ID (mm) | Model & length | OD*ID (mm) | Model & length | OD*ID (mm) | Model & length |
2*1 | Al2O3 99.5% <=1500 mm | 10*7 | Al2O3 95% / Al2O3 99%/ Al2O3 99.5% <=2500 mm | 19.05*14.3 | Al2O3 95% / Al2O3 99%/ Al2O3 99.5% <=2500 mm |
3*2 | 11.13*7.95 | 20*15 | |||
4*2.5 | 12*8 | 22.23*15.88 | |||
5*3 | 12.7*8.9 | 23.83*17.48 | |||
6.35*3.96 | Al2O3 95% / Al2O3 99%/ Al2O3 99.5% <=2500 mm | 14*10 | 25.4*19.05 | ||
7.95*4.78 | 15*10 | 26*20 | |||
8*5.5 | 15*11 | 28*22 | |||
9.53*6.35 | 16*12 | 30*23 | |||
10*6 | 17.48*12.7 |