AbstractIn this paper, the possibility of saturation of the surface of the powder of steel grades X6CrNiTi18-10 and 40NiCrMo4 with alloying elements using chemical-thermal treatment by the gas transport method was studied. Ammonium chloride and iodine were tested as a transport agent. The results of the transport of titanium, aluminum, manganese and chromium are shown. To compare the corrosion resistance of coatings according to GOST 9.308-85, specimens in the form of plates were studied.