Abstract

Laboratory research, pilot trials, and industrial implementation of T/P92, S30432 and S31042 boiler steel tubes/pipes used for 600°C steam parameter fossil fuel fired ultra super critical (USC) power plants in China in the past decade are summarized with the emphasis on the technical breakthrough of compositional optimization and the best fit heat treatment. The microstructural stability of the steel tubes/pipes during long-term service is discussed. The advancement of industrial production of T/P92, S30432 and S31042 steel tubes/pipes and their expected application in China is also introduced in the present chapter. The obtained results show that the steel producers and boiler manufacturers of China have been able to successfully produce T/P92, S30432 and S31042 boiler steel tubes/pipes used for 600°C steam parameter USC power plants, while the supplying capability will be gradually increased. The authors briefed the on-going national research projects in the field of advanced boiler steels in China and discussed the potential national research projects in the sector.

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