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EPD: Recycled aluminium billets, Hydro Low Carbon Aluminium 2.0 (Hydro Aluminium UK Ltd)
Hydro Low Carbon Recycled Aluminium 2.0 is a forthcoming aluminium billet (not yet into the market) by Hydro Aluminium UK Ltd in Tibshelf. This aluminium billet is an intermediate product which feeds other processing steps for the production of other products, mainly profiles for the building sector. Aluminium scrap and primary ingots are melted, with the eventual addition of alloying elements, and billets produced through a casting process. The production process, represented in Figure 1, is the same of the Hydro Recycled Aluminium billet produced in Tibshelf (EPD n. EPD-IES-0005332:005 (S-P-05332)), occurring in the same furnace, and using the same raw materials in input, in different percentage. The process includes the remelting of aluminium scrap and primary ingots and the following casting process. During the process, impurities are removed, and alloys are added, if needed, to adjust the chemical composition and to reach the quality standard. Casted billets are bound together by means of plastic straps and wood bars and are stored to be sold externally or to be used internally as input in the extrusion process (profiles production). Hydro has planned the production of the Hydro Low Carbon Recycled Aluminium 2.0 billet with an aim to reach a carbon target (lower 2 kgCO2eq. per kg of billet). To this aim the amount of post-consumer scrap in input is increased up to 75% compared to the average billet produced in the site. There is no process (preconsumer) scrap used.