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Montreuil Juigné, France - Aluminium Manufacturing Plant | Constellium

The Constellium aluminium manufacturing plant in Montreuil Juigné, has around 250 employees and has specialized for decades in hard alloy extrusions with a large wide of products and applications. This plant is a worldwide aluminium supplier extrusions.

This Constellium’s plant was founded in 1939. Today the plant is a leading aluminium extrusions primarily focused on hard alloy extrusions for aerospace applications. It also produces solutions for a large panel of applications and various market segments as defense industries; marine, commercial and leisure vehicles; and industries. For several years, the plant has developed innovative Airware® products.

The plant has and an integrated cast house, 5 extrusion presses, and a wire department.

Professional equality index between women and men for Constellium Montreuil Juigné: 91 (clic here to read professional equality index and details)

Montreuil Juigné, France - Aluminium Manufacturing Plant | Constellium
Type : Plant
Constellium Montreuil Juigné
6, rue Pierre et Marie Curie
49460 Montreuil-Juigné
Tel: +33 (0)2 41 37 44 00

30,000 m²
7.41 acres
  • AS 9100
  • BS OHSAS 18001
  • ISO 14001
  • ISO 9001
  • NADCAP for Aerospace

Billets, Bars, Profiles with a wide range of alloys

Manufacturing capabilities


The integrated casthouse possesses state-of-the-art equipment capable of satisfying all aerospace specifications with short lead times on more than 40 different alloys.

Our casthouse prepares the billets that feed the company’s spinning presses. It also produces billets and blocks for the forging industry.

Capacity = 10000t/year

Bars and Profiles

With 5 extrusion presses, the two extrusion shops deliver products with a wide range of sizes and geometries for key market applications: bars and profiles for aerospace, round and square bars for general engineering applications and forgers. Theses shops consist of hot extrusion presses, stretchers quenching furnaces, ultrasonic equipment, and ageing furnace.

Capacity = 5500t/year


The plant has been producing drawn and heat treated wires in aluminium alloys for manufacturing processes as cold forging, bending weaging, machining and various applications as screw bolts, seat belt balls, valve ….in Automotive, Aerospace, Sports and leisure, and Industry markets

Capacity = 2500 t/year

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