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Heating conductors

Heating conductors made of refractory metals

Electrical current flows through the heating conductor, where it generates heat. This resistance heating creates the high temperatures in the furnace. Our components made of molybdenum, tungsten, tantalum, niobium, and their alloys are made for this. We can provide heating conductors for all types of high-temperature furnaces according to your application.

By combining different constructions and materials for our heating elements, we are able to achieve low surface loading with an even temperature distribution. This ensures that the heating elements can reliably withstand high temperatures, even over long operating periods.

Your advantages at a glance:

  • High radiation output

  • High temperature
    resistance

  • Low heat capacity

  • Low thermal
    expansion

  • Low vapor pressure

  • Excellent
    corrosion resistance

Our heating conductors are available as:

  • Sheets
  • Rods
  • Twisted wire
  • Bundled wire
  • Wire mesh heaters
Bundled wire heating conductors

Bundled wire

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The ideal material for your heating conductor

Our materials belong to the refractory metals. Molybdenum and tungsten are primarily used in thermal processes under high temperatures. With their high melting point, they do not become soft, even at extremely high temperatures. Refractory metals have a low thermal coefficient of expansion and a higher thermal conductivity than steel.

Our materials are also suitable for use with protective gases such as argon, helium, nitrogen, and hydrogen.

Molybdenum-lanthanum (ML)

Using suitable alloys and optimized production processes, we can improve the properties of molybdenum. To achieve a particularly high level of ductility and creep resistance, we dope pure molybdenum with small quantities of La2O3. The stabilized microstructure and modified recrystallization behavior prevent the premature embrittlement and fracture of our furnace components.

Advantages of ML compared to pure molybdenum:

  • Higher recrystallization temperature
  • Elongated grain structure for higher ductility
  • Greater creep resistance

Find out more about the special properties of our materials here:

Our materials

Whether remotely or on-site – we are here for you

Regardless of whether you need an entire hot zone or a spare part for your existing furnace, naturally we would be happy to install our products for you on-site. Our experts can also handle the inspection, maintenance, and optimization of your existing furnaces.

Remote service

Should repairs become necessary, that is a task that we would be happy to take care of for you on-site. If desired, our experts can also provide a remote service to support your needs. This can often quickly answer questions and resolve problems, significantly reducing downtimes.

Further products for high-temperature processes

Whether for annealing furnaces and soldering processes, coating systems, 3D printing sintering equipment, MIM furnaces, sintering furnaces, HIP processes or single crystal growing – our products made of molybdenum, tungsten, tantalum, and niobium can withstand the highest temperatures:

Is your product not yet included? Get in touch and we'll be happy to develop a tailor-made solution for your specific application.