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High temperature Molybdenum Disilicide electric heater MoSi2 furnace heating element
MoSi2 rod heating element is a kind of resistance heating element made from Molybdenum Disilicide. It can be exerted under the high temperature of the oxidated atmosphere. MoSi2 heating element rod has the unique function of high temperature anti-oxidation. Under the oxidated atmosphere, the maximum temperature of MoSi2 elements is 1800°C. It can be made into various types, including U-type, W-type, right-angle as well as circular type.
Physical property of Silicon Molybdenum Rod :
| 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% |
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℃ |
| Applications | Heat treatment Forging Sintering Glass melting Refining Radiant tubes | Laboratory furnaces Testing equipment High temperature sintering production furnaces |
Molybdenum silicon heating elements specification:
Diameter of hot zone | Diameter of cold zone | Length of hot zone | Length of cold zone | Terminal center distance |
3mm | 6mm | 80-300mm | 80-500mm | 25mm |
4mm | 9mm | 80-350mm | 80-500mm | 25mm |
6mm | 12mm | 80-800mm | 80-1000mm | 25-60mm |
7mm | 12mm | 80-800mm | 80-1000mm | 25-60mm |
9mm | 18mm | 100-1200mm | 100-2500mm | 40-80mm |
12mm | 24mm | 100-1500mm | 100-1500mm | 40-100mm |
How to order ?
