| Index for 99% corundum ceramic tube: | |
| Twisting strength | 3160 kg/cm2 |
| Tensile strength | 23300 kg/ cm2 |
| Bending stength | 2520 kg/ cm2 |
| Hardness | 9 |
| Vol.density | >3.8 g/ cm3 |
| Coefficient of linear expansion | (room temperature-800°C) 7.75*10-6 /°C |
| Thermal stability | 1300°C-room temperature no rupture for three times(above 50) |
| 1000°C-room temperature no rupture for three times(abov 50) | |
| Puncture voltage | (room temperature)>10KV/mm |
| Vol.resistance | (room temperature)>>1014 Ω. Cm |
| Longtime applying temperature | 1600°C |
| Short time applying temperature | 1800°C |
| AL2O3 | ≥99% |
| Refractoriness | 2030°C |
| Dimension | Outer dia. mm | Inner dia.mm | Length mm | Remark | |
| Item | |||||
| Thermocouple protection tube | 7-120 | 1-110 | 10-2000 |
If you need others,we
can customize for you.
|
|
| Insulated tube | Single hole | 2-120 | 1-110 | 10-2000 | |
| (inner core) | Double holes | 1-10 | 0.4-2 | 10-2000 | |
| Four holes | 2-10 | 0.5-2 | 10-2000 | ||
| Feature | Application | Main usage |
| 1.Great mechanical strength |
Electric appliance industry
Automotive industry
|
1.Heat treatment furnace
and toughened furnace
|
| 2.High softening temperature | ||
| 3.Good resistance to thermal impact | ||
| 4.Small thermal expansion coefficient |
Mechanical industry
Engineer industry
|
2.Inner liner tube and heating
tube in electric furnace
|
| 5.Good chill and abrupt heat properties | ||
| 6. Resistance to acid and alkali corrosion |