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I don't normally research steel plants outside of North America, but the history of this plant is too significant to skip. It is not only the first plant to hot roll wide flange H-beams (Henry Grey patent) in 1901, it is still rolling them. A Grey beam mill is what
Bethlehem built in 1908, and it supplied the beams used to construct many of the skyscrapers in the USA.
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The Beauty of Steel project posted
Do you know where the world's largest hot rolled H beams are manufactured? In China? Russia maybe? The US? No! All wrong, in Luxembourgish site called ArcelorMittal Differdange. Established in 1900, still active today. Beams up to 60 m long and 25 tons each.. |
I read an article a few decades ago that the Bethlehem Grey mill was shutdown. The mill was manually controlled and, if I remember correctly, steam powered.
Viktor's photo and the following photo clearly shows that the Differdange plant was upgraded to electric motors. In fact, some of Victor's other photos show that the plant was upgraded to use an EAF and a continuous caster.
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Photo via stahlseite
Schwere Trägerstrasse, Grey beam rolling mill
"AM Differdange rolls he world’s largest beams up to 60 meters long and weighing more than 25 tons each." |
- 1 electric arc furnace
- 1 continuous caster steel shop with an annual production capacity: 1.35 million tonnes
- 1 rolling mill: the Grey Mill produces heavy beams - including Jumbo sections - and sheet piles (annual production capacity: 740 000 tonnes)
- More than 800 employees
- More than 100 years of history
- 115 ha
I wasn't going to include this page of the flipbook until I saw the beam in the upper-right corner. I can't imagine what the rolls look like to create that beam.
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