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GB5310?????ˉ??|20G?????ˉ??|??ˉ???????

?????ˉ??????????ˉ?????ˉ????????????????????????????????????????????????????????????????????ˉ????????????????o????????????????????????????????????￡??????????????????????и???????????????????????????????????????????????ˉ???????????????????????ˉ????????????????????????????????????
???????????ˉ??GB3087-1999???????ˉ??GB5310-1999????????????????????ˉ???????????????????????ˉ?ù????????????????С?????????????????????????????Σ?????????????????????GB/T8162-1999???????????????е??????????
????????????????GB5310-95???????ˉ?????????????????22??530mm?????20??70mm????????(????)????10??108mm?????2.0??13.0mm?????
??????????????????????????????????????????????????????????????????????????????????????????D?????????????????????????BD????????????????????????BJ????????????????????????????????е????????????????????????н?????????????????н?????俹??????????????????????????????
????4.?????????
????(1)GB3087-82?????????ˉ?????????漲???????????鷽????GB222-84??GB223???????????????????????е??й?????
????(2)GB5310-95???????ˉ?????????漲???????????鷽????GB222-84??????????????????????????GB223???????????????????????е??й?????
????(3)?????ˉ???????????鰴????漲???й??????С?
????5.??ˉ???????
????(1)??????????????20G??20MnG??25MnG??
????(2)????????15MoG??20MoG??12CrMoG??15CrMoG??12Cr2MoG??12CrMoVG??12Cr3MoVSiTiB???
????(3)????????????1Cr18Ni9??1Cr18Ni11Nb??ˉ??????????????е?????????????????飬??????????????顣??????????????????
????????????????????????????????????????????
????6.???????????
????(1)GB3087-82?????????ˉ?????????漲?????????鰴GB/T228-87???????鰴GB/T241-90????????鰴GB/T246-97?????????鰴GB/T242-97?????????鰴GB244-97??
????(2)GB5310-95???????ˉ?????????漲?????????顢????????????????GB3087-82?漲???????????鰴GB229-94?????????鰴GB/T242-97???????????鰴YB/T5148-93???????????鰴GB13298-91?????????鰴GB224-87???????????鰴GB/T5777-96??
????(3)?????ˉ?????????????鼰???????漲???й??????С?

????????????????????????????|??????????? ?????ˉ?????????