40Cr ???? 42CrMo ?? ??? ??????? ????? ????? ?????, ??????????? ??????? ????????? ????????????, ???????, ???? ??????, ?????????????????, ????? ??????????? ??? ?????????, ?????? ???????? ??????? ??????????? ??? ?????-???? ???????????? ??????????? ???? ??? ?? HRC58- HRC62 ??, ????? ???????, ??? ????? ?????????? ??? ???????? ????????.

??????????? ???? ???? ???? ???? ????? ???????? ????????? ?????? ??????? ?????? ?????? ??: ????????? ?????? ??????, ???????? ?????? ????? ??????, ????? ???? ?????? ???????? ??????, ???? ???????? ?????? ?????? ??????, ??????? ???? ?????? ?????? ??? ?????? ?????? ??????.

????-?????????? ????????? ??????????? ???? ?????????? ? ????????? ??? ?? ?? ?????? ??????? ?????? ?????? ???????????? ???????? ????, ???? ?????? ?????? ?????? ??? ????? ????????? ?????????? ????????? ???? ?????? ???? ??? ??? ??.