Hüttenwerke Krupp Mannesmann

Hüttenwerke Krupp Mannesmann GmbH
legal form	GmbH
founding	1990
Seat	Duisburg , Germany
management	Managing directors: Herbert Eichelkraut (technology); Gerhard Erdmann (Controlling); Carsten Laakmann (Labor Director);
Number of employees	about 3000
Branch	Steel industry
Website	http://www.hkm.de/
	As of September 20, 2017

Racking at the blast furnace

On the converters

Slab production

The hut Krupp Mannesmann are in Duisburg - Hüttenheim -based steel industry companies, in addition to a steel plant , a coke plant , two blast furnaces , a power plant and a sinter plant maintains.

Predecessor company

In the south of Duisburg was the Essen company Schulz-Knaudt in 1909 an open-hearth steel plant with three furnaces of 40 tons tap weight built. The annual production at that time was around 110,000 tons of crude steel. In 1914, Mannesmann took over this plant in what was then the municipality of Duisburg-Huckingen (now the Duisburg- Hüttenheim district ) as the Schulz-Knaudt department. The plant was renamed Heinrich-Bierwes-Hütte in 1932.

The company Krupp and Mannesmann decided end of 1987, the merger of their two Duisburg steel plants in Hüttenheim and Rheinhausen on the premises of the steelworks in Duisburg-Hüttenheim. The other location, the Rheinhausen ironworks , was closed in 1993.

Shareholder

It was founded in 1990 by the partners Mannesmannröhren-Werke AG and Krupp Stahl AG, each with 50% shares.

The shareholder structure has been as follows since 2005: Thyssen Krupp Steel AG 50%, Salzgitter Mannesmann GmbH 30% and Vallourec Germany 20%.

production

In 2007, Hüttenwerke Krupp Mannesmann GmbH in Duisburg-Huckingen, with an average of 3,116 employees (total workforce), produced 5.53 million tons of crude steel from iron ore and coal . That is around 12% of the crude steel produced in Germany.

At HKM, the steel is made into slabs with widths of up to approx.2.1 meters (e.g. for the production of large pipes and exterior body parts) or round steel with diameters of 180 to 406 millimeters and a maximum length of 14 meters (e.g. for Manufacture of seamless tubes for various requirements and for forging purposes).

On April 20, 2006, the supervisory board provided the management with an investment of 40 million so that coal can be injected in place of heavy oil injection in the blast furnace . HKM calculated with the difference between coal and (heavy) oil prices at that time with a cost advantage of approx. 50 million euros annually, so that the conversion would pay for itself within approx. 10 months.

In September 2010 the investment of 400 million euros for the expansion of the coking plant, which had been planned for some time, was announced. With the construction of a second battery, the annual production is to be increased from 1.1 million t to 2.3 million t of coke and to supply the shareholders with 500,000 t of coke per year in addition to their own requirements. It is the largest single investment in the company's history to date. The general contractor was the plant manufacturer ThyssenKrupp Uhde GmbH . The new system was successfully put into operation on March 29, 2014.

At the end of 2016, blast furnace B was reloaded for 120 million euros.

Others

The Krupp Mannesmann ironworks supplies the Duisburg-Huckingen power plant with coking and furnace gas . The large chimney of the Hüttenwerk Krupp Mannesmann is - together with the Stadtwerketurm - the third tallest structure in Duisburg (after the two chimneys of the sintering plant of the ThyssenKrupp steelworks Duisburg-Schwelgern and the chimney of the Duisburg-Walsum power plant ).

The listed Angerort house and two angle towers are located on the site of the ironworks .

On October 17, 2013, the works councils of Hüttenwerke Krupp Mannesmann GmbH met with the German works council for their commitment to promoting equality in the company, in connection with the establishment of a committee for migration, integration and equality that they had initiated as part of the German Works Council Conference -Prize 2013 in bronze.

literature

Horst A. Wessel : The development of the Huckinger iron and steel works , in: Bürgererverein Duisburg-Huckingen e. V. (Ed.): Huckinger Heimatbuch, Geschichte und Geschichte , Volume I, 2nd, extended edition, Duisburg 2009, pp. 119–184.
Zeitzeugenbörse Duisburg eV: Duisburger Hüttenwerke , Erfurt 2014, ISBN 978-3-9540036-4-8