Sidersa orders Danieli MIDA QLP-DUE long-product minimill for Argentina

Argentinian steelmaker Sidersa has placed an order with Danieli for a MIDA QLP-DUE green steel minimill, marking the first installation of this endless-production technology in Latin America. The new plant will be built in San Nicolás de los Arroyos, in Argentina’s Buenos Aires province.

The minimill is designed to produce around 360,000 tonnes per year of quality straight bars in bundles and wire rod, using locally sourced scrap. Output will primarily serve the domestic construction market, with additional volumes earmarked for export.

At the core of the project is Danieli’s MIDA QLP-DUE concept, which combines patented technologies such as Digimelter for endless scrap charging, Digirefiner ladle furnace technology, a single-strand Octocaster and an integrated rolling mill. Products will include wire rod and straight bars finished through a direct rolling and bundling station.

Endless scrap charging enables preheating, significantly reducing melting energy requirements while cutting carbon and NOx emissions. The elimination of billet reheating further improves the plant’s environmental footprint, supporting low-emission steel production.

The minimill will also feature Danieli’s Q-One power feeder, designed to optimize furnace performance, allow the direct use of renewable energy and minimize impact on the power grid. The Octocaster will supply endless 154-mm octagonal billets to a 20-stand bar mill and a wire rod line equipped with a fast-finishing block, maximizing productivity while lowering energy consumption.

Danieli will deliver the complete plant package, including fume extraction, water treatment systems, cranes and full automation. Start-up is scheduled for the first half of 2028.

Once completed, the Sidersa facility will be the first entirely new, full-scale steel minimill built in Argentina in more than five decades, strengthening the country’s long-product capacity with modern, low-emission technology.

Source and Photo: Danieli