1885
In Germany, the brothers Max and Reinhard Mannesmann, steel tool manufacturers, designed and patented a rolling mill to manufacture seamless steel piping in their name. This became known worldwide as a pilger mill. Within just a few years, as well as in Germany, the company founded by the Mannesmann brothers had factories not only in Great Britain, but also in France and in Italy.
27 June 1906
The Società Anonima Tubi Mannesmann was established in Milan
and two years later, during a period of heavy German investment
in Italy, in Dalmine, close to Bergamo, the construction
of a factory that would roll seamless pipes began.
1915
When Italy joined the war the Banca Commerciale Italiana took control of the German company's shares. The town of Dalmine grew around the factory, giving rise to one of the most significant examples of a relationship between a major industry and the local community, such that in 1920 the company changed its name to Stabilimenti di Dalmine.
1924
The company was listed on the stock exchange.
1937
The holdings passed to Finsider. Specialized in the manufacture of seamless pipes, Dalmine made a name for itself in the second half of the thirties as one of the leading companies in the iron and steel sector.
July 1944
The Dalmine factory was seriously damaged by bombing and a tragic price was paid; more than 270 people were killed and over 800 injured. Repair of the machinery destroyed and the resumption of production were the prime objectives during the postwar years. After adopting the new name of Dalmine
S.p.A., the company started to make a number of acquisitions.
1948
It incorporated the Massa Carrara factory (formerly Apuania), which manufactured
pipes for the oil industry.
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1954
The Torre Annunziata (Naples) plant commenced production of welded gas piping.
1956
Cylinder production began at Sabbio Bergamasco.
1957
Construction of the Costa Volpino factory to manufacture
cold-drawn tubes; at the end of the Sixties the company
took control of Piombino, which produces welded pipes using
the Fretz-Moon method. During this period Dalmine employed
more than 17,000 people.
1976
The electric continuous casting steel plant started production.
1978
The first pipe was rolled in the new retained mandrel rolling mill - at the time the most advanced system to manufacture seamless pipes in the world.
1990-1995
Further acquisitions : the factory at Arcore, producing tubes for the mechanical industry; the small factory at Carbonara Scrivia (Alessandria); Tubicar, for the manufacture of precision tubes; and the distribution companies TAD, Tubi di Qualità and Siderlandini.
1993
Production started in the Rotary Expander rolling mill (for large diameter pipes) and on the second continuous casting line.
27 February
1996
Dalmine joined the Techint Group.
2002
Together with the other production units of the Group, Siderca(Argentina), Tamsa (Mexico), Tavsa (Venezuela), NKKTubes (Japan) and AlgomaTubes (Canada), Dalmine is an integral part of Tenaris.
17 December
2002
Tenaris listed on Milan, Buenos Aires and Mexico City stock exchanges.
17 July 2003
Dalmine delisted its shares on Milano Stock exchange.
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