??????????????????

?硡????0635??2189598

???????13396220692??17862525099??17862512888??18963580692

?????2418524989@qq.com

??????????????????

??????????????и??????????????66??

??????λ??? ?? ? >> ??????

????????5mm??Q345qE??????? ???

?????????2018/12/24

???????????????????????

?????2933

????????5mm??Q345qE??????? ???

Q345qE??????????? ??????? 10??2000??8000+ 32?? 12??2000??8000+ 56?? 12??2000??8000+ 70?? 14??2000??8000+ 35?? 14??2000??8000+ 70?? Q345qE??????????? ??????? ???????????????????????????????壬????????????????????????????????????β????q???????? ????????????????????í??????????A3q?????????????????1??

Q345qE??????????? ???????
10??2000??8000+ 32??
12??2000??8000+ 56??
12??2000??8000+ 70??
14??2000??8000+ 35??
14??2000??8000+ 70??

Q345qE??????????? ???????
???????????????????????????????壬????????????????????????????????????β????q????????
????????????????????í??????????A3q?????????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq??????????????4.5~50?????

????????к??????????

?????????????????????????????С????С???????????????3?·???????????????226.61????
?????????;???????????????????????θ??????и?Э???????????4?????????????????????
????4.69%?????й????????????и???????????????