1. The wear resistance of low-hardenability steel 55PP is almost constant through the depth of the layer quenched to martensite. 2. The wear resistance of carburized steels 15Kh and 18KhGT decreases by a factor of 2–3 through the depth of the carburized and quenched-to-martensite layers. 3. The wear resistance of low-hardenability steel 55PP with a hardened layer">0.1 mm removed by grinding is higher than that of steel 15Kh, and with a layer">0.25 mm removed it is higher than that of steel 18KhGT. 4. In selecting materials for parts subject to wear in operation, it is necessary to take into account the allowance for machining after heat treatment and if it is ">0.2 mm it is expedient to use low-hardenability steel 55PP subjected to induction hardening.