|Successor||Ugine & ALZ (U&A)|
|Products||Stainless steel plate and coil|
In 2001 the company was merged with French stainless steel producer Ugine and in 2006 became part of the ArcelorMittal group as part of the stainless steel division.
In 1970 Espérance-Longdoz (Société Métallurgique d'Espérance Longdoz) became part of Cockerill-Ougrée-Providence, and ALZ became a Cockerill subsidiary; Allegheny Ludlum disposed of its shares, and in 1971 Cockerill had a 90% stake of the shares. In 1979/80 the Cockerill group was restructure due to financial problems, and also disposed of its shares; German steel company Klöckner became a shareholder, in 1981 the other Flanders-based steelmaker Sidmar became a shareholder, by 1987 the majority shareholder. In 1988 the company became part of the Arbed group. In 2001 Arbed became part of Arcelor and ALZ merged with French stainless producer Ugine to become Ugine & ALZ (U&A).
Initially the company processed steel by cold rolling, annealing and other processes, using stainless steel imported from the USA. Later the plant expanded to include casting, and an electric foundry installed in 1970. Cast stainless blocks were produced at the factory and sent to the Espérance-Longdoz plant in Chertal, Liege for conversion to slab, they then returned to ALZ for rolling.
Continuous cast stainless steel production was introduced in the mid-1970s, eliminated the need to have slabbing done at Chertal. Widths of up to 2050mm could be continuous cast. In 1987 an electric foundry was installed with ultra-high power electric arc furnace, converter and vacuum oxygen decarburisation increasing capacity by more than double.
As of 2002 steel production was ~1million tonne pa producing stainless steel coil and plate mainly from scrap. The factory site of 78.5 ha (0.785 km2) is connected to the rail network, and is situated on the north bank to the Albert Canal from which it draws cooling water.
- Michel Capron (1987). Yves Mény, Vincent Wright (ed.). The Politics of steel: Western Europe and the steel industry in the crisis years (1974-1984). Walter de Gruyter. pp. 693–4.
- The Belgian economy in the twentieth century, p.171
- The Belgian economy in the twentieth century, p.135
- Jan Weetjens, "Thesis - Scrap sorting at ALZ" (PDF), doks.khk.be (in Dutch), Introduction pp.6-10
- "ARCELOR unites key players to form UGINE & ALZ" (PDF). Stainless Steel World: 18–21. March 2002.
- André Mommen (1994). The Belgian economy in the twentieth century. Routledge.
- M. Hiebler (1 May 2004). "First year of operations of the stainless steel plant at Ugine & ALZ". www.allbusiness.com.
- "Belgian Steel Federation - ALZ". www.steelbel.be. GSV (Groupement de la Sidérurgie - Staalindustrie Verbond). Archived from the original on 2011-08-23.
- "ArcelorMittal Stainless". www.arcelormittal.com. Archived from the original on 2009-03-13.
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