Molybdenum disilicide(MoSi2) heating element:
Mosi heating element is a kind of resistance heating element basically made of pure molybdenum Disilicide. In oxidizing atmosphere, a layer of compact quartz protective film is formed on the surface of Mosi 2 element owing to the high temperature combustion, which prevents Mosi 2 from continuously oxidizing.
In oxidizing atmosphere, its Max temperature can reach 1800 c and its applicable temperature is 500-1700. It can be widely used in such applications as sintering and heat treatment of ceramics, magnet, glass, metallurgy, refractory etc. the commercial name of our Mosi 2 heating element is KERONE Mosi 2 Heating Element.
mosi2 heating element
1. According to temperature: 1700C and 1800C
2. According to Shape: U, W, I, U type L shape, W type L shape, Spiral types.
mosi2 heating element standard size
M1700 type (d/c): dia3/6, dia4/9, dia6/12, dia9/18, dia12/24
M1800 type (d/c): dia3/6, dia4/9, dia6/12, dia9/18, dia12/24
M1900 type (d/c): dia3/6, dia4/9, dia6/12, dia9/18, dia12/24
Physics characters of mosi2 heating element
| Bulk density |
Bending strength |
Hardness |
Apparent porosity |
Drawing water rate |
Thermal elongation |
| 5.6~5.8g/cm3 |
20MPa(20ºC) |
(hv)570kg/mm² |
0.5~2.0% |
0.5~2.0% |
4% |
Recommend surface load:
| Furnace Temp(°c) |
1400 |
1500 |
1600 |
1650 |
1700 |
| Surface load of hot zone(W/cm²) |
<18 |
<15 |
<12 |
<10 |
<8 |
The influence of operation temperature on the heater surface in a different atmosphere:
| Atmosphere |
1700 Type |
1800 Type |
| Air |
1700 |
1800 |
| N2 |
1600 |
1700 |
| He |
1600 |
1700 |
| -80°C Dry H2 |
1150 |
1150 |
| -20°C Wet H2 |
1450 |
1450 |
| 10%CO2, 50%CO, 15%H2 |
1600 |
1700 |
Installation of mosi2 heating element
1)Vertically hanging
Under normal temperature, MoSi2 element is very brittleness, while under high temperature, it is plasticity, so the better way to install U Shape element is to hang it vertically from the furnace top through the support clamping chuck. The aim of such way is to avoid putting the mechanical stress directly to the element heat-generating end; otherwise the element will easily be broken.
2) Support clamp
Support clamp are applied to 9/18 and 6/12 two kinds of elements respectively. The support clamp supports the whole weight of the element and the position of the element is also determined by it, therefore, it must be installed carefully to assure the element vertically hung. In order to prevent the element from being over heated locally, the taper part of the element lower end must put into the furnace chamber.
mosi2 heating element Application:
| Item |
name |
distinction criterion |
specification |
| Heating elements |
1700 type |
Element operating temperature 1700ºC is acceptable |
Le Φ
6-12W type/U type/L type/all kinds of heating element |
| 1800 type |
Element operating temperature 1800ºC is acceptable |
| 1800J type |
Element operating temperature≥1800ºC |
Le Φ
3-12W type |
| 1800T type |
Element operating temperature≤1800ºC |
Le Φ
3-12W type U type |
| Small furnace (power100KW) |
Large furnace(Power 100-500KW) |
| Furnace temperature |
Voltage |
furnace temperatureºC |
Voltage |
| 20-150 |
1/3 Operating voltage |
1/3 Operating voltage200-300 |
1/3 Operating voltage |
| 150-500 |
2/3 Operating voltage |
300-700 |
2/3 Operating voltage |
| 500-operating temperature |
The Whole-Operating Voltage |
700-Operating temperature |
The Whole-Operating Voltage |
Picture of mosi2 heating element
Order Guide
When you need it, please tell us the following data
such as dia 6/12x200x180x30mm ( D1/D2xLexLuxA )
D1: Diameter of Hot Zone(mm)
D2: Diameter of Cold Zone(mm)
Le: Length of Hot Zone(mm)
Lu: Length of Cold Zone(mm)
A: Shank Spacing(mm)
Package and shippment for MoSi2 heating element
Wooden box packed filled with foam inside to avoid damage
Audited Supplier 
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