What is P91 steel pipe

P91 steel pipe is a kind of high pressure and high temperature resistant steel material. It is in accordance with the American Standard ASME SA335 / SA335M, so it is generally referred to as SA355 P91. P91 steel pipe is widely used in power plant construction.

The features and advantages of P91 steel pipe: the wall thickness of P91 steel pipe is reduced by more than 40% compared with other steel materials, so as to save more than 30% of material cost and installation cost. Due to the weight reduction of pipeline, the load of support and hanger is also reduced correspondingly. It is convenient to support and install, which not only saves the cost of supports and hangers, but also saves civil engineering costs, and has considerable economic benefits.