METHOD OF PRODUCING A STEEL COMPONENT PROVIDED WITH A METALLIC COATING GIVING PROTECTION AGAINST CORROSION, AND A STEEL COMPONENT

摘要

The invention provides a method by which a component can be produced which is provided with a metallic coating which adheres well and which provides protection against corrosion. For this purpose, a flat steel product produced from a steel material containing 0.3 - 3 wt.-% manganese and having a yield point of 150 - 1100 MPa and a tensile strength of 300 - 1200 MPa is coated with an anti-corrosion coating which comprises a coating of ZnNi alloy which is electrolytically deposited on the flat steel product, which coating is composed in a single phase of .gamma.-ZnNi phase and which contains, as well as zinc and unavoidable impurities, 7 - 15 wt.-% nickel. A blank is then obtained from the flat steel product and is directly heated to at least 800°C and is then formed into the steel component, or is first formed into the steel component, which is then heated to at least 800°C. The steel component obtained in the respective cases is finally hardened by being cooled sufficiently fast from a sufficiently high temperature.