Nexans

© Denis Morel

Aluminum producer Trimet and Nexans have laid the groundwork for improving the eco-balance of power cables. In a joint breakthrough development project, the two companies have developed a material with recycled aluminum content for the production of aluminum rod used in electrical cables.

Trimet and Nexans have developed a new product able to meet the high technical requirements on the mechanical properties and conductivity of the alloy while reducing the product's carbon footprint. Until now, power cables have been manufactured exclusively on the basis of primary aluminum.

Melting and recycling of aluminum scrap requires only a fraction of the energy needed to produce primary aluminum. However, recycled aluminum contains impurities that adversely affect the material's specific properties. The collaborative project between Nexans and Trimet aimed to coordinate optimized raw material supply and innovative material development. For example, Nexans has refined the sorting of aluminum scrap at its production sites in Europe through RecyCâbles, a Nexans-Suez joint venture, while gearing its collection to recycling for electrical cables. Trimet has closed the material cycle with its recycling concept and used the scrap obtained to develop a high-quality alloy that meets the full range of quality requirements for mechanical and electrical performance.

Nexans plans to maximize the use of aluminum rod with recycled aluminum content in 2023. This enables the global company to meet its customers’ growing demand for products with a favorable eco-balance. For its part, Trimet is expanding its range of recycled products in the aluminum wire sector. In so doing, the materials specialist is building on its commitment to decarbonize production while making a further contribution to the energy transition.

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