A 20μm thick coating of La 0 . 8 Ca 0 . 2 CrO 3 perovskite on Fe-25Cr steel substrates was obtained by the screen-printing method. The interaction of the (La, Ca)CrO 3 coating with the steel substrate occurring during oxidation in air at 1073K for 200h was investigated. The microstructure, phase and chemical analyses of the coating after oxidation were examined. It has been revealed that the metal substrate-coating interfacial zone has a two-layer structure built of mainly FeCr 2 O 4 and LaCrO 3 , which provide the electric contacts between the interconnector material and the film, thus creating conditions for prolonged exploitation of solid oxide fuel cells.