FLAT STEEL PRODUCT WITH AN AL-COATING, METHOD FOR PRODUCING THE SAME, STEEL COMPONENT AND METHOD FOR PRODUCING THE SAME

摘要

The present invention relates to a flat steel product for hot forming, which is produced from a steel substrate, which consists of a steel comprising 0.1-3% by weight Mn and up to 0.01% by weight B, and an Al-based protective coating, which is applied to the steel substrate and optionally contains in total up to 20% by weight of other alloying elements, and also to a method for producing the same, to a steel component and to a method for producing the same. The flat steel product according to the invention makes it possible to minimize the water absorption during the heating required for hot forming. This is achieved according to the invention by the protective coating containing as an additional alloying constituent in total 0.1-0.5% by weight of at least one alkaline earth metal or transmission metal, wherein an oxide of the alkaline earth metal or transition metal is formed on the outer surface of the protective coating during the hot forming of the flat steel product.