disclosed is a protective layer having the composition 1 . 5 % to 2 . 5 % rhenium , 11 % to 13 % cobalt , 20 % to 22 % chrome , 10 . 5 % to 11 . 5 % aluminum , 0 . 3 % to 0 . 5 % yttrium and or at least one equivalent metal selected from the group comprising scandium and the rare earths and the remainder consists of nickel . existing protective layers which have a high al and / or cr content and which are additionally reinforced by re - forming brittle phases that , during use , additionally embrittle under the influence of carbon . the present invention hardly exhibits a brittleness by cr / re depositions .