ArcelorMittal ZA255 Steel coated with galfan zinc-aluminum alloy

Applications: The ductility and strong anti-corrosion properties of galfan make it a coating highly suited for deep-drawn parts and parts requiring a high level of corrosion protection. In certain applications, a 10 micron galfan coating can replace a 20 micron galvanized coating, providing better weldability, drawability, and corrosion resistance. Galfan can thus reduce costs, symplifying secondary processes and eliminating the need for post-treatment.. It can be used to replace thick galvanized coating and post-galvanizing treatments. Parts:Electric motor housingsFilter, airbag cartridgesWindscreen wipers and mechanismDoor platesWindow drive railsOil sumpsElectronics boxesTechnical characteristics:Surface appearance: Galfan has a cellular surface which appears mottled. Unpainted galfan acquires a patina over time, its initial metallic appearance dulls to a matte gray.Hardness: The coating, composed of 95% zinc and 5% aluminum, has a eutectic structure lending it excellent ductility and the thin intermetallic layer at the steel/coating interface guarantees excellent coating adhesion. These two properties enable galfan to be used for making components that are particularly difficult to form. Surface finish: The three surface finishes defined in the EN 10327 standard are available to suit customer requirements.Information provided by ArcelorMittal