Barrio Ugarte s/n-Apdo 7
48970 Basauri

(+34) 94 487 15 00
(+34) 94 487 16 15


Sidenor is a Steel company, leader in the European steel industry for the production of special steel long products and one of the main producers of forged and cast pieces. 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.

Sidenor´s steel production capacity excedes one million tons annually, primarily destined to the automobile, machinery, capital equipment, naval and civil construction, defense, energy, mining and petrochemical industries. In all of these industries, Sidenor´s special steel is used to manufacture reliable products.

The company is at the frontline of the sector thanks to their intense reserach commitment. Having one of the largest R&D centers in the European steel sector, Sidenor´s technological developments offer optimization of products and processes.


Special steels: 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 for quench and temper, case hardening steels, spring steels, microalloyed steels, cold forming steels, nitriding steels, heat resistant steels, nitriding steels, heat resistant steels, steels for chains, bearing steels, tool steels and stainless steels.

  • Hot rolled bars from 20 mm to 230 mm
  • Hot forged bars from 220 mm to 1.500 mm
  • Turned bars from 10 mm to 212 mm
  • Cold drawn bars from 5 mm to 50 mm
  • Ground bars from 7 mm to 65 mm
  • Hot rolled billets from 60 mm to 230 mm
  • Flat bars: 6-60 mm x 50-130 mm
  • Wire rod from 5.5 mm to 37 mm
  • Drawn wire from 1.5 mm to 38 mm
  • Semis: Ingots up to 140 tonnes, continuous casting billets and blooms.

Forgings and Castings: Specific unit for forging and casting pieces with a worldwide activity scope, providing solutions to meet the needs of sectors such as shipbuilding (both mercantile and naval) electrical power generation, cement manufacturing plants, mineral preparation plants, steel and iron industries, heavy machinery components, etc.

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