Thermal Elements
Molybdenum Disilicide MoSi2 Thermal Heating Elements for Electric Furnace
Item Number : KT-MH
Price varies based on specs and customizations
- Maximum Operating Temperature
- 1800°C (1900°C in specific oxidizing atmospheres)
- Oxidation Resistance
- Forms protective SiO2 layer at high temperatures
- Available Shapes
- Straight, U-shaped, W-shaped, L-shaped
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High-Performance Molybdenum Disilicide (MoSi2) Heating Elements
KINTEK, leveraging exceptional R&D and in-house manufacturing, provides advanced Molybdenum Disilicide (MoSi2) Heating Elements, integral to our high-temperature furnace solutions for diverse laboratories. These elements are engineered for superior performance, reliability, and longevity in the most demanding thermal environments, ensuring your experiments and processes achieve optimal results.
Product Showcase: MoSi2 Heating Elements
Our MoSi2 heating elements are available in various configurations to suit your specific furnace and application needs. See the quality and versatility firsthand:

Key Features & Benefits: Why Choose KINTEK MoSi2 Elements?
KINTEK's MoSi2 Heating Elements are renowned for their exceptional performance, offering significant advantages for your high-temperature applications:
- Extreme Temperature Capability: Operate efficiently at temperatures up to 1800°C (and even 1900°C in specific oxidizing atmospheres), ideal for processes requiring intense heat. The maximum operating temperature under an oxidation atmosphere is 1800 ℃.
- Superior Oxidation Resistance: When heated in an oxidizing atmosphere, a protective, dense silica (SiO2) glass film forms on the surface. This layer safeguards the inner MoSi2 material from further oxidation, ensuring unique high-temperature oxidation resistance and extended element life.
- Stable and Reliable Performance: The resistance of MoSi2 elements increases with temperature, stabilizing when the temperature is constant. This stable resistance allows for consistent heating and the ability to connect new and old elements in series without compromising performance.
- Long Service Life: With proper selection of surface load and operating conditions, our MoSi2 elements offer the longest inherent life among many electric heating elements, providing a cost-effective solution by minimizing replacements and maintenance.
- Resilience to Thermal Cycling: These elements can withstand rapid thermal cycling without significant degradation, crucial for processes involving frequent temperature changes.
- Ease of Replacement: Designed for convenience, MoSi2 elements can often be replaced even while the furnace is hot, minimizing operational downtime.
- Versatile Shapes & Customization: Available in standard straight, U-shaped, W-shaped, L-shaped configurations. Backed by KINTEK's strong deep customization capability, we can tailor elements to precisely meet your unique experimental requirements and furnace designs.
Wide Range of Applications
Molybdenum disilicide (MoSi2) heaters are vital in numerous high-temperature fields. Their robust performance makes them suitable for:
- High-Temperature Furnace Operations: Essential for furnaces used in producing ceramics, glass, and metals, reaching up to 1800°C.
- Laboratory Research: Widely employed in laboratory furnaces for materials testing, synthesis, and research at high temperatures.
- Industrial Processing: Integral to processes like sintering, annealing, and heat treatment of various materials.
- Advanced Materials Manufacturing: Used in the production of high-performance precision ceramics, high-grade artificial crystals, precision structural metal ceramics, glass fibers, optical fibers, and high-grade alloy steel.
- Semiconductor Manufacturing: Applied in fabrication processes where precise high-temperature control is critical.
They are widely used in metallurgy, steel making, refractories, crystal and electronic component manufacturing, and other fields demanding high-temperature precision.
Customized Solutions & Expert Support
At KINTEK, we understand that unique experimental requirements demand tailored solutions. Our product line, including Muffle, Tube, Rotary Furnaces, Vacuum & Atmosphere Furnaces, and CVD/PECVD/MPCVD Systems, is complemented by our strong deep customization capability. We can integrate these high-performance MoSi2 heating elements into your existing setup or as part of a new, custom-designed furnace solution.
Ready to enhance your high-temperature processes? Our experts are here to help you select or customize the ideal MoSi2 heating elements for your application. Contact us today via our Contact Form to discuss your specific needs and let KINTEK power your innovations.
Technical Specifications
Chemical Properties & Oxidation Resistance
As highlighted, Molybdenum Disilicide heating elements exhibit exceptional high-temperature oxidation resistance. The formation of a bright and dense silica (SiO2) glass film on the surface in oxidizing atmospheres protects the inner core, ensuring longevity and stable operation at high temperatures.
Physical Properties
| Physical Properties (g/cm³) | Bending Strength (MPa) | Hardness (GPa) | Compression Strength (MPa) | Water Absorption (%) | Heated Elongation (%) |
|---|---|---|---|---|---|
| 6.0±0.1 | 500 | 12 | >1500 | ≤0.2% | 4 |
Working Performance in Different Atmospheres (Max. Element Temperature °C)
| Atmosphere | T1700 Grade | T1800 Grade | T1850 Grade | T1900 Grade |
|---|---|---|---|---|
| Air | 1700 | 1800 | 1830 | 1850 |
| N2 Nitrogen | 1600 | 1700 | 1700 | 1700 |
| Ar, He (Argon, Helium) | 1600 | 1700 | 1700 | 1700 |
| Dry Hydrogen (dew point -80℃) | 1150 | 1150 | 1150 | 1150 |
| Wet Hydrogen (dew point -20℃) | 1450 | 1450 | 1450 | 1450 |
| Exogas (e.g., 10% CO2, 50% CO, 15%H2) | 1600 | 1700 | 1700 | 1700 |
| Exogas (e.g., 40% CO2, 20% CO) | 1400 | 1450 | 1450 | 1450 |
| Cracked and partially burnt ammonia | 1400 | 1450 | 1450 | 1450 |
Understanding MoSi2 Element Models & Dimensions
To specify the correct MoSi2 heating element, please refer to the following model marking convention:

- D1: Hot zone diameter
- D2: Cold zone diameter
- Le: Hot zone length
- Lu: Cold zone length
- A: Gap distance (shank spacing)
Standard model number format: D1/D2*Le*Lu*A
For example: If D1=6mm, D2=12mm, Le=200mm, Lu=300mm, A=30mm, the model is specified as: 6/12*200*300*30mm
Commonly available dimensions (custom sizes available upon request):
| D1 | D2 | Le Range | Lu Range | A (Typical) |
|---|---|---|---|---|
| 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 |
Installation Guidance
For optimal performance and longevity of your MoSi2 heating elements, proper installation is crucial. Please click here for precautions and best practices when installing MoSi2 heating elements.
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FAQ
What Are The Main Applications Of Heater Elements Like MoSi2 And SiC?
What Are The Advantages Of Using MoSi2 Heating Elements?
What Are The Benefits Of SiC Heating Elements?
Why Are Ceramic And Semiconductor Heating Elements Like MoSi2 And SiC Suitable For High-temperature Environments?
Can MoSi2 And SiC Heating Elements Be Customized?
Product Datasheet
Molybdenum Disilicide MoSi2 Thermal Heating Elements for Electric Furnace
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