Online shopMy Plansee
Online shopMy Plansee

Ribbons made of molybdenum, tantalum, and niobium

Our ribbons made of molybdenum, tantalum, and niobium are used wherever unique material properties are required, be it components in lamp manufacturing, furnace construction or numerous other industries.

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 ribbons 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 then rework and/or form our ribbons according to your specific requirements.

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

  • Consistent high quality

  • High production capacities and flexible manufacturing

  • Individual dimensions upon request

Download our product specifications:

Mo ribbon specification

High capacities with optimal quality

Ribbon semi-finished product

Thanks to our high production capacities, we can manufacture ribbons in large quantities without difficulty.

Our one hundred years of experience in powder metallurgy and our state-of-the-art systems enable us to guarantee you the best quality for every ribbon. Whether shiny or pickled, for punching or in deep-drawing quality: we can adapt our products to your specific application.

Our multi-roll stands enable us to manufacture ribbons with lengths up to almost 1 km and with a minimal thickness of 15 µm. This allows us to deliver ribbons in thicknesses of 15 µm to 0.76 mm and widths of 1 mm to 360 mm. The thinnest ribbons can thus be up to 1000 meters in length.

We can provide the following dimensions:

Material Thickness in mm
Mo 0.015 to 0.762
MLS 0.381 to 0.762
MY 0.015 to 0.200
MY-ESS 0.015 to 0.042

Upon request


Upon request

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 0.7% by weight, this stabilized molybdenum has a high creep resistance and high recrystallization temperature. It is supplied in a stress relieved version to make further processing easier.

With a yttrium oxide content of 0.47 % by weight and Cer oxide content of 0.08 % by weight, this particle-reinforced molybdenum adheres well to quartz glass and has good weldability.

Tantalum in melting quality with a high chemical resistance and good formability. Just like TaS, TaM is also particularly corrosion-resistant.

Niobium in melting quality with a high chemical resistance but significantly lower density than tantalum.

Details for these products:

Our technologies and processes for ribbon 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.
  • Equipment from our hot and cold rolling mills with modern thickness control systems.
  • Highly dynamic, hydraulic gap control for maintaining the strictest product tolerances.
  • Automatic handling in critical process steps for sheet and ribbon production ensures high surface qualities.
  • Optimized process chain throughout the entire production process from powder to completed semi-finished product enables excellent mechanical properties such as good re-usability.

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

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

    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 MLS ribbons, we also have sheets, rods, wires 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