?? H13 ??? ???? ??? ????? ????? 38CrMoAl ??? ??? ????????? ?????? ???, ??? ???? ?????? (HRC56-HRC59), ????? ??? ?????? ??? ??? ?????? ??? ???? ???????? ?????? ????? ?????? ??? ?????????????? ???? ?????? ??? ???? ?????? ????? ??? ?????????? ?????? ?????? ??? ?????????? ??????? ????? ??????, ?????? ?????? HRC 1.6 ???.