1. Product description
Molybdenum heating elements can reach a maximum temperature of 1800 ℃ in an oxidizing atmosphere, with a usage temperature of 500-1700 ℃. They can be used as heating elements for high-temperature industrial furnaces such as ceramics, magnetic materials, glass, metallurgy, and refractory materials.
2. Product parameters
2.1 Dimension marks for U-shaped silicon molybdenum rod:

|
Material Grade |
Diameter |
Hot zone length |
Cold end length |
Center distance |
|
1700, 1800 |
D1/D2, mm/mm |
Le, mm |
Lu, mm |
A, mm |
For example:
U-shaped shape, material grade 1800
D1=3mm, D2=6mm, Le=140mm, Lu=125mm, A=25mm
Represented as Specify as:
Hongyuan Super MS18, U-shaped, 3/6 × 140 × 125 × 25
2.2 Physical property:
|
Volume density |
Bend strength |
Vickers hardness |
Porosity rate |
Water absorption rate |
Hot extensibility |
|
5.5~5.6kg/cm³ |
15~25kg/cm³ |
(HV)570kg/mm³ |
7.4% |
1.2% |
4% |
2.3 The Max temperature of elements in different atmospheres:
|
Atmosphere |
Max element temperature |
|
|
Hongyuan Super Ms17 |
Hongyuan Super Ms18 |
|
|
Air |
1700℃ |
1800℃ |
|
Nitrogen |
1600℃ |
1700℃ |
|
Argon, Helium |
1600℃ |
1700℃ |
|
Hydrogen |
1100℃~1450℃ |
1100℃~1450℃ |
|
N2/H2 95/5% |
1250℃~1600℃ |
1250℃~1600℃ |
|
General applications |
Most types of industrail furnace for heat treatment, forgoing, sintering, glass melting and refining and for use in radiant tubes. |
Laboratory furnaces, testing equipment and high temperature sintering production furnace. |
3. Product detail drawings

4. Features & Advantages
✔ Superior Oxidation Resistance – Forms a protective SiO₂ layer at high temperatures, preventing further oxidation.
✔ High-Temperature Stability – Maintains consistent performance even at extreme heat.
✔ Fast Heating & Cooling – Rapid thermal response with minimal thermal expansion issues.
✔ Long Lifespan – Durable in oxidizing atmospheres, reducing replacement frequency.
✔ Energy Efficient – Low power consumption compared to traditional heating elements.
5. Applications
MoSi₂ heating elements are ideal for:
- Industrial Furnaces (sintering, annealing, ceramic firing)
- Laboratory & Research Equipment (high-temperature testing, material synthesis)
- Semiconductor Manufacturing (diffusion, CVD processes)
- Glass & Ceramic Production (melting, shaping)
6. Packaging & Shipping
- Standard Packaging: Each element is individually wrapped in anti-static foam and packed in sturdy carton boxes.
- Bulk Orders: Wooden crates for safe international shipping.
- Lead Time: Typically 7-15 days after order confirmation (custom sizes may require longer).

7. Why Choose Us?
1) 20 Years of Expertise – With two decades of manufacturing experience, we ensure superior quality, precise engineering, and reliable performance in every MoSi₂ rod we produce.
2) Exceptional Durability – Our rods feature high-purity materials and advanced sintering technology, delivering outstanding oxidation resistance and a long service life even at extreme temperatures (up to 1800°C).
3) Custom Solutions – We offer tailored designs, including varied diameters, shapes, and electrical specifications, to perfectly match your furnace or industrial heating requirements.
4) Strict Quality Control – Each rod undergoes rigorous testing for density, resistivity, and thermal stability, guaranteeing consistent performance and safety in demanding environments.
8. FAQ
Q: What is the lifespan of MoSi₂ heating elements?
A: Under proper conditions (controlled atmosphere, no overloading), they can last 6 months to 2 years, depending on usage frequency and temperature.
Q: Can MoSi₂ elements be used in reducing or vacuum atmospheres?
A: No, they perform best in oxidizing environments (air). Reducing or vacuum conditions may degrade the protective SiO₂ layer.
Q: Do you provide custom shapes and sizes?
A: Yes, we offer customized designs (U-shape, W-shape, straight rods) based on furnace requirements.
Q: What is the shipping cost and delivery time?
A: Shipping depends on order volume and destination (express air or sea freight available). Delivery usually takes 1-4 weeks globally.
Q: How should MoSi₂ elements be stored before use?
A: Keep in a dry, dust-free environment to avoid moisture absorption, which may affect initial performance.
Hot Tags: molybdenum heating element, China molybdenum heating element manufacturers, factory, supplied silicon molybdenum rod, enhanced silicon molybdenum rod, delivered silicon molybdenum rod, strong silicon molybdenum rod, developer silicon molybdenum rod, silicon molybdenum rod

