???÷???????
???塢???????壨????????????????????????????????????? ??????????????????????????????涨??
???ò????????漸???
???????????
??????????????????PN??1.0MPa????????10?桫200????????????????
??ú?????????????????????????????HT200??HT250??HT300??HT350??
?????????????
????????????PN??2.5MPa????????30??300???????????????????????
???????????У?KTH300??06??KTH330??08??KTH350??10??
??????ī??????
??????PN??4.0MPa????????30??350????????????????????????????? ??????У?QT400??15??QT450??10??QT500??7??
??????????????????????β??????????????????顣??????飬 ????PN??2.5MPa????????????????????????
???????????ī??????
????????????PN??0.25MPa????????120???????????
?塢?????
????????????PN??32.0MPa????????30??425???????????????????? ?????????????????????????????WC1??WCB??ZG25???????20??25??30?????????16Mn??
????????
??????PN??2.5MPa??????????????????????????????????????40?? 250????????????????????ZGnSn10Zn2(?????????H62??Hpb59??1?????????QAZ19??2??QA19??4(?????)??
??????????
????????????PN??17.0MPA??????570????????????????????????? ZGCr5Mo,1Cr5M0. ZG20CrMoV, ZG15Gr1Mo1V, 12CrMoV , WC6, WC9???????????????????????????? ??淶??涨??
????????
????????????PN??6.4Mpa,?????196???????????????????????? ????????????????ZG1Cr18Ni9 ??0Cr18Ni9?? 1Cr18Ni9Ti ??ZG0Cr18Ni9
????????????
????????????PN??6.4Mpa ??????200???????????????????????? ZG0Cr18Ni9Ti ?? ZG0Cr18Ni10<??????>??ZG0Cr18Ni12Mo2Ti ??ZG1Cr18Ni12Mo2Ti<?????????>
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