OREANDA-NEWS. July 12, 2012. TISCO received the approval certificate for boiler and pressure vessel material issued by China Standardization Committee on Boilers and Pressure Vessels. It means TISCO produced 07Cr25Ni21NbN (TP310HCbN/S31042) and 10Cr18Ni9NbCu3BN (S30432) austenite heat resistant seamless stainless steel pipe has got an formal admission to Chinese market. It symbolized that China’s special stainless steel pipe for ultra-superciritical power station boiler stepped into a new stage for sinicization, reported the press-centre of TISCO.   
      
This certificate points out that the two steel grades of austenite heat resistance seamless stainless steel pipe produced by TISCO are complied with China’s boiler code and the related specification, are qualified to be used for overheater and reheater for ultra-supercritical power station and load cell for similar application. The expiry date of the certificate is the March of 2017.
     
It is known that the ultra-supercritical boiler stainless steel pipe is the key raw material for overheater and reheater for ultra-supercritical power generator boiler. This material is featured with complicated manufacturing process, difficult technologies of steel-making and pipe-making. For a long time, this material required by Chinese market were imported from overseas market.