Steel sheet with coating that provides sacrificial cathodic protection including lanthanum

摘要

The invention relates to between 1% and 40% by weight of zinc, between 0.01% and 0.4% by weight of lanthanum and optionally up to 10% by weight of magnesium, optionally up to 15% by weight of silicon and It relates to a steel plate provided with a coating providing sacrificial cathodic protection, optionally consisting of a further cumulative component of up to 0.3% by weight and the balance consisting of aluminum and unavoidable impurities or residual elements. The invention also relates to a method for producing parts by hot upsetting or cold upsetting and parts obtainable by this method.