Samples of steel 45 were subjected to electrospark alloying (ESA) on an EFI-10M commercial plant at an electric discharge energy of 0.3-1.0 J. Friction and wear tests were conducted using an upgraded СМЦ-2 friction and wear machine at the Laboratory of Tribology of the Aleksandras Stulginskis University of Kaunas (Lithuania). The test samples were special segments of steel 45 coated with the above materials. The coated segment (with a flat working surface) was paired with a disc of steel 45 (HRC 40-43).  Coatings of chromium, molybdenum, BrOF6.5-0.15 bronze, and combined T15K6 + BrOF6.5-0.15 coatings were tested in 15W-40 engine oil. The counterbody with diameter d of 35 mm was rotated at a speed of 600 rpm. Two samples of each of the coatings were tested under each load. The emphasis was put on the sliding distance of 32000 m, rather than on the test time.  The wear of all the coatings (Figure a) and discs (Figure b) increases with increasing load was found. Tribological tests showed that the molybdenum coatings is the most wear-resistant and the coatings of BrOF6.5-0.15 grade bronze exhibits the lowest antiwear properties. Wear resistance of molybdenum coatings exceeds by more than two orders wear resistance of 45 steel.  In our opinion, this is because on the surface alloying with molybdenum the molybdenum nitride is formed, which has a high hardness. Under all loads, the highest wear was found for the discs contacting with combined T15K6 + BrOF6.5-0.15 coatings, although their initial microhardness (Hµ = 6242 MPa) was lower than that molybdenum coatings (Hµ = 13573 MPa). It is established that the coatings of bronze had the highest antifriction properties from all investigated coatings.