??????????????????????
?й???????淶??????????????????A??B??D??E?????????????й???????淶???????????????????????????????????
A32 D32 E32 F32 ??50mm ?????Ceq,%??????0.36
>50-100 ?????Ceq,%??????0.4
A36 D36 E36 F36 ??50mm ?????Ceq,%??????0.38
>50-100 ?????Ceq,%??????0.4
A40 D40 E40 F40??50mm ?????Ceq,%??????0.4
>50-100 ?????Ceq,%??
?????????? C eq??%??=C+Mn/6 +(Cr+Mo+V)/5 +(Ni+Cu)/15.....
???????????????????????
??????????????????????ú???????????????????????????б?????????+???????????????????????????????У???ú????????棬????????????????????????21~22?????????(600231,???)?????????????棬????????4???????????????????????????2017??????????????й?????????????????12??????????????2????
???????????????лл ?? ????? ????????????????????
?????????20?????????????????????÷???