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