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We make Steel

Sidenor is a steel company, leader in the European steel industry for the production of special steel long products. It is also an important supplier of cold finished products in the European market. The company has production centers in Basque Country, Cantabria and Catalonia as well as business delegations in Germany, France, Italy and the U.K.
The company has highly specialized facilities offering solutions for all industrial sectors requiring high quality steel services.
European leader
in Special Steel
Long Products

Full range of rolled products (wire rods, bars, flats, billets), cold finished (cold-drawn, peeling/turning and straightening) and forged products (bars and flats) in carbon steels, free cutting steels, alloyed steels, spring steels, microalloyed steels, cold forming steels…

Internal service providers
Scrap/alloy surcharges

We are Innovation

Our vision is to be the metallurgical reference of both Sidenor and its customers. The activity of Sidenor R&D focuses on increasing competitiveness through improvements and innovations in Quality, Costs, Productivity and Product Development with our customers.


Products and Developments

Sidenor Units in Europe

Sidenor Latest News

  • Today, the Fourth Vice-President of the Government and Ministry for Ecological Transition and Demographic Challenge, Teresa Ribera, has visited Sidenor’s factory at Basauri, where she was welcomed by José Antonio Jainaga, Chairman of the company. There, she was able to see at first hand the......

  • For the fourth year in a row, Sidenor publishes its annual Corporate Report. The 2020 report reflects the company’s commitment in the face of three important sustainable development challenges: economic, social and environmental sustainability. We thus reaffirm our commitment to transparency, valu...

  • Our environment is continuously changing, and the future success of each company will depend on its adaptive capacity. Currently, one of the main transformation drivers is the increasing environmental awareness, which translates into increasingly demanding policies, new consumption models and, final...