Article | REF: M7600 V2

Steelworks: evolution of the production processes of liquid steel

Author: Guy DENIER

Publication date: March 10, 2011

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1. Origins of industrial steel production

  • By the middle of the 19th century, in 1851, the world's iron production was 60,000 t/year: this was indeed iron, obtained in a pasty state, as the high temperatures needed to melt steel were not yet known.

  • The second half of the 19th century was to prove decisive for the steel industry, with four major inventions spread over several decades of immense significance for the development of this industry and, by extension, the global economy (see Box 1).

    Box 1 – Four major inventions of the second half of the 19th century
    • 1856: Bessemer, in Great Britain, obtained liquid steel for the first time by blowing air through a cast-iron bath (figure

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