up to 900mm thick and 80 tons heavy is still produced at the old Marrel Frères site in Chateauneuf, France.

The steel mill  was founded in 1867 by the Marrel brothers.
Main product were flat irons and armoured plates.
In 1932 a unique combined heavy plate rolling and forging mill was installed that is still in use today.
In 1974 Marrel Frères became part of the Creusot Loire group and eight years later the production of long rolled products was transfered to St. Etienne and after the bancruptcy of Creusot Loire the mill became part of USINOR.
In the following years the company changed it’s name frequently (Creusot Loire Industrie, CLI Fafer, Usinor Industeel). Today the site is part of Industeel producing the largest heavy plate in Europe.