Finland
Outokumpu's largest production facilities are the integrated steel mills of the Tornio Works, in the small Finnish town Tornio on the coast of Gulf of Bothnia. Tornio Works produces hot rolled and cold rolled coils and sheets cut from coil, with an annual output of one million tonnes. The site consists of ferrochrome smelting, two steel-melting shops, a hot rolling mill and two cold rolling mills. The steel works were built in 1975–1976. The first stainless cast was made in May 1976, week 19, thus it has got the heat number 61901.The main marketing area is the EU. Up to 85% of the products are exported all around the world.
Kemi mine in Keminmaa near Tornio provides chromite, the raw material for chrome, needed to make stainless steel. In 2012, the quantity of chromite was estimated to a depth of one kilometer, totalling some 105 million tonnes.
Sweden
Avesta Sheffield was acquired 2001 and consists of a stainless steel mill with melting shop, hot rolling for heavy plates, hot rolling for 2000 mm width coils by Steckel mill and cold rolling mills. Avesta developed special stainless steel grades, high-alloy austenitic and duplex grades, optimized for good formability, weldability and high corrosion resistance.[21] Avesta has a long history in steelmaking, as does Sheffield in the UK where stainless steel was invented.
Thin Strip Nyby (see also Nyby bruk) produces cold rolled stainless steel, concentrating on special grades, part of the Special Coil business line.[21] Nyby Ironworks in Torshälla was founded in 1829 by Adolf Zethelius, but ironworking on the site is first documented in the 15th century when the Bishop of nearby Strängnäs founded hammer forges by the waterfall near Nyby.
The Degerfors Long Products steelworks was owned in 2021 by the Outokumpu conglomerate.[22]
United Kingdom
After the Avesta Sheffield acquisition, Outokumpu owned the Sheffield facility in the UK includes a melt shop, continuous casting, a bar finishing facility and rod mill which are part of Outokumpu's Long Products business, also a stocking, processing and distribution center. Production includes stainless steel in coil, plate, sheet, coiled rod, bar and rebar forms; semi-finished products including slab, bloom, billet and ingot are also manufactured.[23]
Outokumpu's UK acquisitions derived from the works created in 1950 as a joint venture between Firth Vickers (see Firth and Vickers) and Samuel Fox and Company for cold rolling stainless steel, established at Shepcote Lane, Sheffield, originally manufactured under the Staybrite brand. In 1967 the industry was nationalized into the British Steel Corporation. Outokumpu's original three sites in the UK were in Sheffield, Stocksbridge, and Blackburn.
In 2005 the cold rolling and finishing units, Coil Products Sheffield on Shepcote Lane were closed, with the loss of over 600 jobs. Production ceased in the first half of 2006. The company continued the melting shop, special strip cold rolling and finishing, bar rolling, and UK distribution. At the end of March 2008 the Stocksbridge site production ceased after 80 years, with work transferring to its Meadowhall site.
Germany
As of 2018 there are production sites in Krefeld, Dillenburg and Dahlerbrück.
The Krefeld mill with 100 years of experience in stainless steel production, closed its melt shop in December 2012 and re-focused on cold rolling and R&D. The nearby Benrath cold rolling mill in Düsseldorf was relocated and joined with Krefeld operations, to make a range of grades, dimensions and surface finishes. The Dahlerbrück cold rolling mill is located in Sauerland producing precision strip and looks back on a 300-year tradition of iron and steelmaking. The cold rolling mill in Dillenburg specializes on surface finishes for example in architecture, building and construction. The Bochum melt shop was closed in 2014.[25]
U.S. and Mexico
Outokumpu has a melt shop and cold-rolling mill in Calvert, Alabama (purchased from ThyssenKrupp) and a cold rolling mill in San Luis Potosí (Mexico) which manufactures coil, strip, sheet, circles and plate.[26]
