Aichi Steel Corporation

Aichi Steel Corporation is a prominent Japanese manufacturer of specialty steels, forged products, stainless steel, and electromagnetic components, serving as a key materials supplier within the Toyota Group. Established in 1940 from Toyota's steelmaking division, it specializes in high-value-added products that enable lighter, higher-performance automobiles through integrated steelmaking and forging processes. Its business segments include Steel for hot-rolled materials and steelmaking; Stainless Steel for shapes, titanium products, and structures used in fuel cell vehicles and hydrogen stations; Forging for critical automotive parts like crankshafts, e-axle units, connecting rods, and drive shafts; and Smart for electronic functional materials, magnets such as anisotropic Nd-Fe-B resin bonded MAGFINE, magneto-impedance sensors, and metallic fibers. As Japan's leading producer of stainless steel shapes with over 4,000 varieties, Aichi Steel supports the automotive industry—supplying 40% of Toyota Group's steel, springs, and forgings—while expanding into electronics, dentistry, and sensors. Headquartered in Tokai City, Aichi Prefecture, with global subsidiaries, it drives innovation in materials for sustainable mobility and diverse applications.