The new mills will produce welded structural tubes with yield strength up to 800 Mpa in a OD ranging from 19 to 193 mm (3/4 inch to 7 9/16 inch), and equivalent square and rectangular sections, with wall thicknesses up to 7.3 mm (0.287 inch) at speeds up to 140 m/min (460 fpm).
The new ERW mills will feature automatic coil loading, on-line metallization, eddy current testing, tube stenciling, quick-change mill system, bundle packaging lines and full automation system.
The mills will be installed in a new facility in the western part of Monterrey and will produce tubes to be commercialized in Mexico through the well-established commercial network of Achv Aceros.
The new mills will operate through a Danieli Automation L1 system.
The start-up of the two Electrical Resistance Welding mills is foreseen by end of 2025.