27SiMn?????@27SiMn???????27SiMn???????????????
27SiMn?????@27SiMn??????
27SIMn????????27????????????е???????????????0.24??0.32%???????????????????????? ???C????Si????Mn????P????S???У?????????????1.10??1.40%??
??????????????????????λ???????????????????г?--?й????????????????????????????????????????????????????????,?????????ˉ?????????????,ú;????????????????????????????????????????? ?????????????????????????????????????????8-1240??1-200mm????????????????????????????:?????????????????????????,???и????ˉ????????????????;????????????ˉ?????????ù?|?????????????ù????????????и???????????????????????????????????????????????п????????? ????????????????????ι?????????
??????????20#??35#??45#??16MN??Q345??A/B/C/D/E????27SIMN??15CrMO??15CrMoG??12Cr1MOV??12Cr1MoVG??20G??13CrMo44??A335P91??T91??P91??T22??P22??P5??Cr5Mo??1Cr2Mo??12Cr2Mo??35CrMo??42CrMo??40Cr??38CrMoAL??10CrMO910??304??304L??316??316L??321??310S??
27SiMn???????????????
27SIMn??????????????????????????????????????????е?????????????????????????????????????????????????????????н??????????????????????????????л??????????????????,?????????????????????????С????????и???????????????????????????35CrMo???????????????????????????????????????????????????????????????????????????У???????? 2000m????????????????????????????????????????????.
????27SIMn????????糧????ˉ??????????????????????,???????????????????????????
????27SiMn???????????
????27SIMn??? ??????? ??b (MPa)????985(100)????????27SiMn?????
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????27SIMn??? ??????? ??s (MPa)????835(85)
????27SIMn??? ???? ??5 (??)????12
????27SIMn??? ?????????? ?? (??)????45
????27SIMn??? ????? Akv (J)????63
????27SIMn??? ???????? ??kv (J/cm2)????78(8)
????27SIMn??? ??? ????229HB ??????磺???????????25mm
????27SIMn??? ?????????????????????????? 500?棻???????????е????????
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