The projects of Arcelor innovation R&D aim at developments having a time to market from a few months, for the most advanced, up to the end of the decade, for the most futuristic. They are carried out in partnership with the automotive industry. Ultra-high strength steels are a recent major innovation. They offer an effective answer to the request for improved safety and reduced energy consumption and contribute to sustainable development. The author introduces three major innovative developments: new technologies for high strength steels implementation, new openings for an improved cost/weight saving balance, new surface properties, based on nanotechnology. It is the ambitious claim of Arcelor, now and for the future, to afford steel solutions for all purposes, in particular for the automotive industry. The Arcelor-Nippon Steel collaboration makes it possible to bring an even better answer to the request of customers for further developments.