EOS and Constellium expand their aluminum materials partnership
The agreement adds CP1 and aligns alloy development with industrial metal printing.

What happened
EOS and Constellium announced a partnership covering aluminum alloys for additive manufacturing. Constellium Aheadd CP1 joins the EOS portfolio, while Al5X1 receives shared Constellium branding.
The companies describe a longer-term framework for developing additional alloys and connecting them with validated process parameters. Target applications include heat exchangers, semiconductor equipment and lightweight components.
The July announcement scheduled CP1 availability through EOS for August. Manufacturer-reported processing and thermal benefits are application dependent; the partnership itself does not qualify every possible component.
Read the sources
Primary-source reporting; this is not a hands-on review. Sources checked Oct 25, 2026.