To assure the highest quality, Constellium sources raw materials from reliable international suppliers. Our soft alloys are based on the 6xxx alloy family. With our eye on the future, we also continuously research new ways to recycle aluminium more easily and efficiently.

Accuracy and consistency


We are known for our broad range of soft aluminium alloys that enable high-formability extrusions with great mechanical performance. Sourced from renowned international suppliers, each alloy is manufactured to precise internal specifications.

These enable perfect reproduction of quality and properties in large series.

Solutions and support for soft alloys

At Constellium’s Soft Alloys plants in Europe, we process soft alloys based on the 6xxx alloy family.

These alloys are developed according to the standards required by different markets and applications. These standards include:

  • mechanical properties,

  • fatigue behavior,

  • formability,

  • surface appearance,

  • thermal and electrical conductivity.

Our technical teams are on hand at each of our 5 sites to help customers select the solution best adapted to their application and needs.