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Fine tungsten wire

Molybdenum and tungsten wires

Our wires made of molybdenum and tungstens are required anywhere unique material properties are in demand whether in lamps, coating systems, satellites, or medical technology.

Learn more about the special properties of our materials made of refractory metals in our Materials section. There you will find information regarding the further processing of our semi-finished products: To our materials

We produce the highest quality wires made of refractory metals in our ultra-modern production facilities. Our equipment enables us to offer a wide range of products, giving you diverse possibilities. We can also manufacture large quantities without any problems.

You can order standard dimensions directly from stock: Plansee Online Shop

Your advantages at a glance:

  • High surface quality

  • Special doping depending on the application

  • Meets the strictest tolerances

  • Comprehensive final check for guaranteed quality

  • High production capacities and flexible manufacturing

  • Individual dimensions upon request

Download our product specifications:

Mo wire specification

Wire as fine as 10 µm

We don't just supply redraw wires made of molybdenum and tungsten, but also fine wires with a diameter as fine as 10 µm.

Our fine wires are used in applications such as medical technology.

Fine wire for medical technology

Fine tungsten wire is used as filaments in halogen lamps, fluorescent lamps, and incandescent lamps. Our wire used in halogen lamps in car headlights is highlighted by its freedom from fissures, very high surface quality, very strict diametrical tolerance, and stable mechanical properties.

To tungsten wire for filaments

Our fine tungsten wires are nearly invisible as they heat the windshields of modern automobiles. In this application, the low tolerance ranges required for electrical resistance and the high surface quality of our wires are particularly important.

To fine tungsten wire for window heating

High capacities with optimal quality

Wire semi-finished products

Plansee has been making W and Mo wires since 1921. Thanks to our capacities, we can manufacture wires in large quantities without difficulty. Our one hundred years of experience and our state-of-the-art systems enable us to guarantee you the best quality for every wire.

Whether graphitated, pickled, or electropolished, we can adapt our products precisely to your specific application.

We can provide the following dimensions:

Material Diameter in mm
Mo 0.015 - 3.17
ML 0.200 - 3.17
Mo-ILQ 0.015 - 3.17
W 0.025 - 1.50
WVM 0.050 - 1.50
WK65 0.010 - 1.50
WRe05, WRe26 0.400 - 1.50

We would be happy to produce tailor-made wires for you as well as help you find innovative solutions for your specific requirements.

We also have standard dimensions in various surfaces available from stock in our Plansee online shop.

The right material for your application

You can select from a number of materials to find just the right one for your requirements:

Molybdenum has versatile applications. It is creep-resistant, has a high rigidity, low thermal expansion, and a high thermal conductivity. It is also corrosion-resistant compared to many other metal and glass melts.

With a lanthanum oxide content of 0.3% by weight, this stabilized molybdenum has a high creep resistance and high recrystallization temperature.

Mo-ILQ is a microdoped molybdenum alloy with a lanthanum oxide content of only 0.03% by weight whose dopant content was specially adapted. Compared to ML, Mo-ILQ is more suitable for forming and therefore easier to process.

Tungsten has the highest melting point of all metals, is creep-resistant, has a good electrical conductivity, high rigidity, and low thermal expansion.

Potassium-doped tungsten with a stacked structure that ensures increased dimensional stability at high temperatures.

Because of the high potassium doping, WK65 provides excellent high-temperature characteristics as well as good creep resistance and dimensional stability.

WRe05, WRe26
We alloy our tungsten with rhenium to obtain greater ductility and a lower brittle-to-ductile transition temperature. In addition, tungsten-rhenium also has a higher recrystallization temperature and better creep resistance.

Our technologies and processes for wire manufacturing

  • The highest purity is ensured via automatic powder handling and process control that is continually being upgraded in the critical process steps powder production, pressing, and sintering.
  • Hot working optimized to wire manufacturing ensures consistent quality and efficient production.
  • Computer-controlled process management, eddy current testing in the production steps as well as a comprehensive final check guarantees that specified properties are maintained.
  • Optimized process chain throughout the entire production process from powder to completed semi-finished product enables excellent mechanical properties such as good re-usability.
  • Plansee India focuses on fine wire production to guarantee permanent further development of manufacturing as well as adaptation to rising requirements.
  • World's largest production capacity for making Mo and W wires.

Everything from a single source – from the powder to the finished wire

We do everything ourselves when it comes to the production of our wires. From raw material to the final product, including the development of new materials. This is how we guarantee the highest quality for our wires.

    Mixing alloys
    Heat treatment
    Mechanical processing
    Quality assurance
OxideMolymet (Chile) is the world's largest processor of molybdenum ore concentrates and our main supplier of molybdenum trioxide. The Plansee Group holds a 21.15% share in Molymet. Global Tungsten & Powders (USA) is a division of the Plansee Group and our main supplier of tungsten metal powder.

Short delivery times and clearly presented price scales – it's not just wires, we also have sheets, rods, ribbons as well as other products made out of molybdenum, tungsten, and tantalum available for you in configurable dimensions in our Plansee online shop .

Take a look at our products in the Plansee Online Shop