TISCOGroup-TISCOSteelPipe-SteelResearchInstitutehassuccessfullylocalizedtheadvancedultra-supercriticalpowerplantboilerkeycomponentmaterials.
BasedonFe-22Cr-25NiaddingW,Co,Cu,Nb,Mo,Notherelements,TISCOGroup,TISCOSteelTubeCompanyIronSteelResearchInstitutecooperatedtodevelopahighCrNiausteniticheat-resistantsteel-C-HRA-5(07cr22ni25W3Cu3co2monbn,S31089,C5fsht).TheresearchdevelopmentofC5indicatesthatChinahasbrokenthefeignmonopolysuccessfullylocalizedthekeycomponentsofadvancedultra-supercriticalpowerplantboilers.InMay,2024,theproductpassedtheThreeNewmaterialtechnicalreviewganizedbytheStateAdministrationofMarketSupervision,willbeappliedtothe630℃nationalpowerdemonstrationprojectofDatangGroupinYuncheng,ShongProvince,whichisthefirstapplicationofstainlesssteelheat-resistanttubesfultra-supercriticalpowerplantboilerswithindependentintellectualpropertyrightsinChina.ThetensilestrengthofC-HRA-5sampletubeat700℃f100,000hoursis114.4MPa,whichisbetterthanthatofSuper304HR3Cathightemperature.