1800 Degree MoSi2 Heating Element Molybdenum Disilicide With High Oxygen Resistance
1800 Degree MoSi2 Heating Element With High Oxygen Resistance
When you inquiry, Please inform us
1. Outer diameter (OD)
2. Length of Hot zone (HZ)
3. Cold end length(CZ)
4. Length of Overall (OL)
Examples:
U-Shape, Material Grade 1800, D1=3mm, D2=6mm, Le=140mm, Lu=125mm, A=25mm
Specify as: MS18U, 3/6 x 140 x 125 x 25
MoSi2 Heating Element Parameters:
- Physical Properties of MoSi2 Heating Element
| Physical properties | ||||
| Volume Density | Bend Strength | Porosity Rate | Water Absorption | Hot Extensiblity |
| 5.5-5.6g/cm³ | 15-25kg/ cm2 | 7.4% | 1.2% | 4% |
- Chemical Properties of Physical Properties of MoSi2 Heating Element
Oxygen-resistance under high temperature: in oxidizing atmosphere, a layer of compact quartz protective film is formed on the surface of element owing to the high temperature combustion, which prevent Mosi2 from oxidizing more. When the element temperature is higher than 1700 °C, the film becomes melting. It’s not suitable for long time use in the temperature range of 400-700°C, otherwise, the element will be powdering for the strong oxidation under low temperature.
- Max temperatures of MoSi2 Heating Element in Different Atmospheres
| Atmosphere | Max. element temperature | |
| MS1700 | MS1800 | |
| Air | 1700℃ | 1800℃ |
| Nitrogen | 1600℃ | 1700℃ |
| Argon, Helium | 1600℃ | 1700℃ |
| Hydrogen | 1100-1450℃ | 1100-1450℃ |
| N2/H2 95/5% | 1250-1600℃ | 1250-1600℃ |
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