Buderus Edelstahl

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Buderus Edelstahl GmbH

logo
legal form GmbH
founding 1920
Seat Wetzlar , Germany
management Martin Dietze, Gunther Prelog, Markus Krepschik
Number of employees 1,430 (2014/2015)
sales 413 million euros (2014/2015)
Branch Steel industry
Website www.buderus-steel.com

The Buderus Edelstahl GmbH , based in Wetzlar is a manufacturer of semi-finished products, hot-rolled, cold-rolled, forged steel bars (tool steel and structural steel), forgings and die forgings. It is part of the Austrian voestalpine group.

Geographical location

The company is located in Wetzlar-Niedergirmes , on the Lahn tributary of the Dill .

history

The joint venture Stahlwerke Buderus-Röchling Aktiengesellschaft was founded in 1920 . Four years later, the company was renamed Stahlwerk Röchling-Buderus. In 1939 the Röchling-Buderus steelworks owned the most modern steelworks in Europe and produced structural steel, high-performance and high-speed steels, ball bearings, carbide and stainless steel. From the mid-1960s onwards, Buderus concentrated on heating and air conditioning technology, building products and casting, as well as kitchen and laboratory equipment. In 1965 the Buderus'schen Eisenwerke acquired the share from Röchling-Buderus and then operated as Edelstahlwerke Buderus AG.

In 2003, crude steel production reached 414,700 tons, the highest level since the company was founded. In the same year Robert Bosch GmbH took over Buderus AG, consisting of Edelstahlwerke Buderus AG, Buderus Heiztechnik GmbH and Buderus Guss GmbH.

Following the takeover and integration of Buderus AG into Robert Bosch GmbH, Edelstahlwerke Buderus AG was taken over and restructured in 2005 by the Austrian steel group Böhler Uddeholm in Kapfenberg, Styria - part of the Linz-based voestalpine group. This was followed by the renaming to Buderus Edelstahl GmbH and the split-off of the drop forge (now Buderus Edelstahl Schmiedetechnik ) and the rolling mill (now Buderus Edelstahl Band ) into new companies.

ARRK Zerspanungstechnik in Bischoffen - Niederweidbach , which has meanwhile been acquired , was fully integrated into the company at the end of 2009, as was Buderus Edelstahl Band  GmbH in 2010 and Buderus Edelstahl Schmiedetechnik  GmbH in March 2013 , which now belong to Buderus Edelstahl GmbH again.

Production process

Complete production at Buderus Edelstahl takes place from a single source, from melting to the end product.

The steels are melted according to customer specifications in an electric arc furnace (EAF) from scrap and alloys at 1,600 to 1,700 degrees Celsius. The standard melt weight is 100 t. The main metallurgical treatment takes place in the ladle furnace and vacuum system  (LF). In the next production step, forging (designed for processing ingots up to 190 t), the forging blocks are heated in automatically controlled bogie hearth furnaces or a rotary hearth furnace and on program-controlled hydraulic open-die forging presses with 20 MN, 55 MN and 80 MN that are designed for high stroke rates Forged pressing force.

In the hot rolling mill , the billets are heated in three hearth carriage pusher furnaces. The blocks are then rolled into slabs on a 900 Duo reversing stand - the so-called automated block mill - which are then rolled into semi-finished products or hot strip on the semi-finished product stand or on the hot strip mill.

The hot strip can be further processed into cold strip in the cold rolling mill on a four-high and two-high rolling stand. Using the attached slitting line, hot and cold strip can also be cut into defined widths.

In the drop forge, heated billet semi-finished products are processed into forgings on hydraulic pre-upsetting presses, forging presses and trimming presses, which are primarily used by their customers in the commercial vehicle industry, but also in high-quality components for construction and agricultural machinery, the offshore sector, mining technology, and for valves and fittings find general mechanical engineering.

Web links

Coordinates: 50 ° 34 '12 "  N , 8 ° 29' 42.9"  E