ArcelorMittal S.A.
A COATED STEEL SUBSTRATE, A METHOD FOR THE MANUFACTURE OF A COATED STEEL SUBSTRATE, A METHOD FOR MANUFACTURE OF A STEEL PRODUCT AND A STEEL PRODUCT

Abstract:

A coated steel substrate coated with a first coating including above 40 wt. % of chromium and optionally one or several elements chosen from yttrium, silicon, calcium, titanium, zirconium, vanadium, niobium and nickel in an amount below 10 wt. % for each element, the balance being chromium and a second coating including from 2 to 30 wt. % of Aluminum, from 10 to 40 wt. % of chromium and optionally one or several elements chosen from yttrium, silicon, calcium, titanium, zirconium, vanadium, niobium and nickel in an amount below 10 wt. % for each element, the balance being iron, the steel substrate including Cr.ltoreq.2.0% by weight; a method for the manufacture of this coated steel substrate; a method for the manufacture of a coated hot steel product; a coated hot steel product and the use of a hot steel product.