A coated stainless-steel substrate including a coating including nanographites and a binder being sodium silicate, wherein the stainless-steel substrate has the following composition in weight percent: C1.2%, Cr11.0%, Ni8.0% and on a purely optional basis, one or more elements such as Nb6.0%, B1.0%, Ti3.0%, Cu5.0%, Co3.0%, N1.0%, V3.0%, Si4.0%, Mn5.0%, P0.5%, S0.5%, Mo6.0%, Ce1.0%, the remainder of the composition being made of iron and inevitable impurities resulting from the elaboration. A method for the manufacture of this coated stainless-steel substrate is also provided.