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Děčín, Czech Republic - Aluminium Manufacturing Plant | Constellium

Founded in 1909, the Constellium aluminium manufacturing plant in Děčín, Czech Republic, has around 800 employees. A leading aluminium extrusions facility, the plant manufactures customized aluminium extrusions in hard and soft alloys primarily for automotive and industrial applications, and has significant recycling capabilities. The plant is the largest integrated hard alloy facility in Europe, and the fourth-largest supplier of tubes, bars and profiles from aluminium and its alloys. Located near the German border, it is ideally positioned to supply German and French OEMs and specialty dealers.

Děčín, Czech Republic - Aluminium Manufacturing Plant | Constellium
Type : Plant
Constellium Extrusions Děčín s.r.o.
Ústecká 751/37
Děčín 5-Rozbělesy
Czech Republic
Email: sales.decin@constellium.com
Website: http://hard-softalloys.constellium.com
Tel: +420 412 508 111

113,000 m²
27.91 acres
  • ISO IATF 16949
  • ISO 14001
  • ISO 50001
  • ISO 9001
  • OHSAS 18001

Bars, Tubes and profiles from aluminium and its alloys, 70 different hard and soft alloys covering 1xxx to 7xxx series, Drawned bars and tubes, CNC machined parts


Manufacturing capabilities

Casthouse unit

The cast-house operates 5 melting and casting lines with batch capacity 5 to 40 tons using both gas fired and also induction technology. Thanks to more than 70 alloys and modifications, a variety of heat treatments can be applied to achieve specific properties. Cast billets from major alloys are further treated in the billet finishing centers. Billet finishing is made by ultrasonic testing, cutting to lengths optimized for the extrusion process and followed by surface scalping. 

Extrusion units

The plant consists of 3 extrusion shops with a dedicated production portfolio and capabilities. In total, 12 extrusion lines are in operation. Extrusion fleet ranges 6 to 36 MN with both direct and indirect technology. Extruded bars and tubes can be further treated by cold drawing based on product dimension and surface requirements. Finally, products are heat treated to achieve the required properties.

Recycling unit

The casthouse has been extended by a dedicated re-melt furnace that enables the recycling not only of internal scrap but also the processing of customer scrap and even scrap with organics. State-of-the art technology is used to optimize the material recovery and minimize the environmental footprint.


Machining of extruded profiles for the automotive industry. Line of  cutting machines and automatic machining centers for turning, and milling, including a robotic workplace with 3D measuring system control.

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