Steel Mills

ArcelorMittal Dofasco to Produce AHSS for Automotive
Written by Sandy Williams
December 28, 2020
ArcelorMittal North America will invest $18.5 million (CAD $24 million) to add capability to ArcelorMittal Dofasco’s No. 5 Hot-Dipped Galvanizing Line. The investment will allow Dofasco to add Aluminum Silicon (Alusi®) to its patented Usibor® Press Hardenable Steel for use in automotive structural and safety components.
“The addition of Alusi® Coated Usibor® capacity at ArcelorMittal Dofasco, in addition to our existing line at AM/NS Calvert, provides our valued automotive customers with improved regional access to advanced high-strength steel that is key to meeting the demands of new vehicles for lightweight, yet stronger structural and safety components,” said Brad Davey, CEO, ArcelorMittal North America.
The first Alusi® Coated Usibor® product is expected to come off the line in the second half of 2022. Up to 160,000 tons of Alusi® coated steel will be produced on the No. 5 line.
The investment is part of a planned revamp of ArcelorMittal’s North American assets that includes a new EAF at AM/NS Calvert in Alabama and a new hot-strip mill in Mexico.
Since 2013, ArcelorMittal has invested more than $622 million at Dofasco including a new galvanizing line (No.6), a new utilities boiler and turbo generator capable of producing 20 megawatts of power on site, the modernization of the hot mill and the digitalization of the ladle metallurgy furnace facility.

Sandy Williams
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