Solutions by


Our best in class products for wind energy are:

Foundations & flanges:

  • Profiles in special bar quality steels for foundations and flanges (profiles up to 250kg/m)


  • Heavy plates in S235, S275, S355, and S420-S460 - including J, J2, JR, M, ML, and NL specifications with thicknesses up to 80mm, widths up to 3.8mm and lengths up to 20mm
  • Amstrong® hot rolled coils from S460 to S500MC and thicknesses up to 25mm


  • Specific beams
  • Heavy plates


  • Wide range of electrical steels, non-grain oriented (ONG) including M400-50A
  • Electrical steels with high permeability (M400XP50A & M470P65A)
  • Electrical steels with low losses (M250-50A in thicknesses from 0.35 to 1mm)

Gearbox yaw & pitch:

  • Seamless rolled ring steels for ring gears (34CrNiMo6, 18CrNiMo7-6, 14CrMoV6-9, 31CrMoV9), orientation systems, and coupling systems (42CrMo4)

Wind towers

The use of fossil fuels and the conventional methods of producing electricity are going to diminish drastically over the next 50 years. Contributing to the development of renewable energy is as much a strategic choice as an industrial responsibility to our planet.

Most countries are doing their part by investing in renewable energy with a strategic focus on the following energy resources:

  • wind
  • solar
  • and to some extent 'blue economy' (ocean economy)

ArcelorMittal is committed to offering steel products and steel solutions to support wind tower manufacturers. Thanks to our worldwide industrial footprint coupled with customised services, we are able to provide the largest range of steel solutions for each part of the wind tower.

Every day, the onshore and offshore windmill sector brings new technical challenges to the wind tower market. Our R&D centres contribute to many projects identifying the future vision for the wind energy sector and wind turbine technology with new, lighter materials meant to limit welding seams involved in turbine construction.

Our heavy plates range is used to manufacture both the tower and, in offshore installations, the jackets that keep the turbine stable on the sea floor. We also supply non-oriented, fully processed electrical steels for the medium and high-power generators sitting at the top of the wind tower. These steels possess all of the required magnetic properties to maximise the amount of energy each turbine can produce.

Our steels for offshore structures offer improved workability and weldability and can be supplied thermomechanically rolled or normalised. They can be utilised in applications such as platforms and equipment for new fixed wind towers.

ArcelorMittal can conduct the following tests if required:

  • ultrasonic testing
  • reduced carbon equivalent (CEV) or parameter crack measurement (PCM) values
  • transversal impact tests
  • resistance to lamellar tearing, perpendicular to the surface of the product as per EN 10164 (Z test)
  • post-weld heat treatment test (PWHT)