Inspection of Imported P92 Steel Tubes Applied in Ultra-supercritical Units

As a kind of heat-resistant steel applied in ultra-supercritical units (USC), P92 steel tubes are commonly used as main steam pipes of high temperature, high pressure and other components. Through analyzing the present development and research situation of P92 steel, the technical inspection standards for P92 steel tubes were introduced. The P92 steel and other materials were compared, so that the problems of P92 steel tubes during inspection were raised. Through the contrast analysis of similarities and differences of technical inspection standards of P92 steel tubes, the key points of inspection of imported P92 steel tubes were put forward.