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1、ThedevelopmentofASMESA－213T23highpressureboilertubeWangQijiang1ZouFengming2ZhangKe3（1.BaosteelTechnologyCent,R&Ddept.ofSteelPipeShanghai,201900）（2.BaosteelTube,Shanghai,201900）（3.ServiceCenterofPowerEquipmentTheMinistryofMachineryIndustry,Beijing,100823）Abs
2、tract:ThedevelopmentofASMESA－213T23inBaosteel,whichisusedforhighpressureboilertube,isdescribedinthepaper,coveringdetailsoftheelevatedtemperaturetensilestrength,creeprupturestrengthandanti-oxidationability,etc.Testsshowthesepropertiesarestableandsatisfiedwit
3、htherequirementsofASMESA-213standard.Therefore,thiskindoftubesissuitableforpowerstationboiler.KeyWords:T23highpressureboilertube;Property;Standard;Powerstationboiler1.IntroductionASMESA213T23(simplifiedasT23)steelisbasedonT22(2.25Cr-1Mo)steel,substitutingWf
4、orapartofMoandaddingmicro-alloyingelementssuchasV,Nb,B.Duetothesolidsolutionstrengtheningandtheprecipitationstrengthening,theallowablestressofT23steelistwicehigherthanASMESA213-T22steelinthecreepregionfrom550℃to625℃.ThecreeprupturestrengthofT23steelisapprox
5、imately1.4timeshigherthan12Cr1MoVsteelat580℃andapproachesthatof12Cr2MoWVTiB（R102）steeldevelopedbyourcountry.Besides,theimpacttoughnessofT23steelishigh,andtheweld-abilityisimprovedsogreatlythatitcanbeusedinas-weldedconditionwithoutpreheatingandpost-weldheatt
6、reatment.Insteadof10CrMo910,T22,12Cr1MoVand12Cr2MoWVTiB,itcanbeusedtomanufacturethesuperheaterandreheaterinpowergenerationboilerswithhighcapacity.Withthequickdevelopmentofpowergenerationboilersinourcountrytowardshighcapacityandhighparameter,moreandmoreT23st
7、eeltubeswillbeusedtomanufacturethesub-criticalorsuper-criticalboilerswithhighcapacityandhighparameterintheindustryofboiler.However,alltheT23steelhadtobeimportedsinceT23steelcouldnotbeproducedinChinabeforethisresearchwasdone.Therefore,theindustryofboilerisea
8、gertohopethatBaosteelcandevelopandproduceT23steelinplaceofimport.Inordertoimprovethemanufacturecapabilityofhigh-capacitysteampowerplantsandsatisfytherequirementtomanufacturesub-criticalorsuper-critical
