??????|??????|???????|27SiMn???????
???????
?????????????????б??GB/T17396-1998?????????????ú??????????????????????????????
?????????????????? 20??45??27SiMn???
?????????????20??45???????27SiMn??920??20?????????450??50???????????????????
?????????????????????????????????????????????????????????????????????????????????????????????辭????????????????????????????????????????????????????????????????????????????????????????????????е??????е????????.
??????????????????????????????????????????????????????????????????????
?????????????????
????
[(??-???)*???]*0.02466=kg/??(????????)
???????
????1??????????????????????й????????Ч?????????????????й?????????????????????????????????1??
????2?????????????????????仯???????????????????????????1?????
????3?????????????????????????????
????4?????????????й?????????????????????????????
????5???????????????????????????ú????????н??????????
???????????????????????
????1??????????????GB8163-2008
????2????ˉ????????GB3087-2008
????3????ˉ?????????GB5310-2008??ST45.8-?????
????4???????豸??????????GB6479-2000
????5?????????????????YB235-70
????6????????????????YB528-65
????7????????????????GB9948-88
????8?????????????????YB691-70
????9??????????????????GB3088-1999
????10??????????????GB5312-1999
????11???????????????????GB3639-1999
???????????16Mn??27SiMn??15CrMo??35CrMo??12CrMov??20G??40Cr,12Cr1MoV,15CrMo???????????????????????????????????????????????????????????????????
???????????????:[(??-???)*???]*0.02466=kg/??(????????)
?????????????????????????????????????????????????????????????????????????????????????????С???????????????????????????????????????????????????????????,??????????????20#??45#??16MN??Q345??A/B/C/D/E????27SIMN??15CrMO??12Cr1MOV??10CrMO910??304??304L??316??316L??321??P11??P22??P91??T91.??й???GB8162-99?????GB8163-99????????????ù?????????GB3087-99??GB5310-85????????ˉ?ù??GB5312-8???ù??...
???????????0510-88264321??88223334 ???棺0510-88223334 ?????18921237777
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