16Mnq??????????????????
????
?????????????MPa 345-305 ????????????bMPa 510-490???????5%??21??
Q345QC???????????Q345QC??????
??????
??????????????????????????????????????е?????????????
????16Mnq?????????????????????????????????????????г??????????????????????????????;????????????????
?г????????????????г??????????????????????????????????????????????????????
????????????????????????????????????????????????????????????????????????????
??????????????????????
?????????????????
5??1800??8000+ 32??
5??1800??8000+ 32??
8??1800??8000+ 90??
8??2000??8000+ 70??
10??1800??8000+ 70??
10??2000??8000+ 90??
???????? ???????лл ?? ????? ?????16Mnq???????????
????????28mm???16Mnq???????????????