????????ж?????CrNi2520?????????

???????????ж?????CrNi2520?????????

0Cr25Ni20

0Cr25Ni20?????

0Cr25Ni20???????????????????????????800?????????????????????????????????????????1200?檔????(Ni)????(Cr)??????????????????????????????????????????????????????????????ˉ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????и?????????????

0Cr25Ni20???????

0Cr25Ni20/ 06Cr25Ni20/s31008/310S/2520

0Cr25Ni20???????

?(C)??0.08,??(Mn)??2.0,??(Ni)19.0??22.0,??(Si)??1.5 ,??(Cr)24.0??26.0 ,??(S)??0.030, ??(P) 0.??0.045

0Cr25Ni20??б????

ASTM A240/ASME SA-240??ASTM A276??ASTM A182/ASME SA-182??ASTM A312/ASMES A312

0Cr25Ni20??е?????

??????????b??515Mpa??????????b??205Mpa????????????35%??????310??HB??

0Cr25Ni20????????У?

?????????????????????????????е??????????硢??????????????????

0Cr25Ni20??????

???????塢????????????????????????????????????????????????????????????????С????????????????????????????????

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

????0Cr25Ni20 ??????????????????л?????,??????豸?????????á?

???????л???????????????????????0Cr25Ni20 ??310S????????????????????????豸??????????????μ???顣

????25cr20Ni???????

25cr20Ni??025cr20Ni?????????????岻???????????????о???????????????????????????????????????????????????????????????????????2?????

??????

? C ????0.08

?? Si????1.00

?? Mn????2.00

?? S ????0.030

?? P ????0.035

?? Cr??24.00??26.00

?? Ni??19.00??22.00

???????

??????? ??b (MPa)????515

??????????? ??0.2 (MPa)????205

???? ??5 (%)????35

?????????? ?? (%)????50

????HBW??182;HRB??90;HV??200

???316LN???????0Cr25Ni20???????304??????????????

??????????????????? ??????????????qq664716271

?塢???????????0Cr25Ni20?????

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

????00Cr20Ni25Mo4Cu2????????????

00Cr20Ni25Mo4Cu2?????????岻???

????????(C)??0.02,??(Mn)??2.00,??(Ni)23.0??28.0,??(Si)??1.0??(P)??0.045,??(S)??0.035,??(Cr)19.0??23.0,?(Cu)1.0??2.0,??(Mo)4.0??5.0

?????????904L????8.24g/cm3?? ???1300-1390 ?棬???????

??????1100-1150???????1-2С??????????????

??е???????????????b??490Mpa??????????b??215Mpa????????????35%??????70-90??HRB??

??????????????????904L?????????????????????????????????????????????岻??????316L??317L???и????????????????????????????????????????1.5%?????????????????????????????????????????????????????????????????????????????????????????????????????????????丯?????????0-98%??????Χ????????У?904L???????????40????????0-85%????Χ?????????У??俹?????????????????????????????????????У???????????????к????????????и????????У?904L????????????????????????????????????У?904L??????????????????????????????????????У?904L????y???????????1-2%???????????Χ??904L???????????????治????904L????к??????????????????????????俹??????????????????904L????????????????????????????????????????????岻???????????60?????????????????????????ж???????????????е????????????????????????????????????????????????????904L????????????????????????????????????????У????к????????????????????

???????????????????904L????????ER385?????E385?????????????Ц?1.6??2.4??2.5??3.2??4.0,????????μ???G&G?????AVESTA???????TFA??????????????黶??????????

????????904L????????????????0.6mm-45mm, 904L????????????????Ц?12mm-??250mm, 904L???????????????????????????????????????????????????OUTOKUMPU???????????????顢????????????????????

????????У?????????豸????????豸?е???????????????????????豸?????????????????糧?????????????????ò?λ?У????????????塢?????????塢???????????????л????????е??????????????????????????????????????????豸???????????豸???????????????????????豸??????????????豸???????:?????????????????????????????????ι???豸?????????????????????904L??????????