Coating of machine parts and mechanisms operating in a corrosive environment is an important task of modern engineering. The surfacing of working surfaces by chromium steels has wide possibilities for the formation of corrosion-resistant coatings. The basis of most of these steels is the system Fe-Cr. For surfacing of corrosion-resistant coatings it is efficient to use economically alloyed flux-cored wire of the system Fe-15Cr. At the same time, the corrosion resistance of the deposited metal of such a system has not been studied. In connection with the above, the purpose of the work was to study the corrosion properties of the metal deposited by chromium flux-cored wire of the Fe-15Cr system. Tests for general corrosion were carried out in a salt fog chamber (SFC) at a temperature of 50±1 °C while spraying copper-acetic acid salt solution (neutral brine with the addition of dihydrated copper chloride (CuCl2 + 2H2O) and crystalline acetic acid) for 3 hours every 1 hour. The evaluation of the corrosion behavior in a salt fog chamber of the metal deposited by flux-cored wire PP-Kh15 was carried out in comparison with the metal deposited by standard wire Sv-20Kh13. It is established that the properties of the metal deposited by wire PP-Kh15 at the initial stage of corrosion behavior, estimated at the time until the first signs of corrosion appear, exceed the properties of the metal deposited by standard wire Sv-20Kh13 in 4.8 times, and for long-term corrosion resistance in 1.49 times. The lowalloyed flux-cored wire PP-Kh15 can be recommended for surfacing coatings on parts of equipment used in production, transportation and storage of oil operating in slightly aggressive environments under conditions of slight abrasive wear.