In order to prevent the cold cracking after welding of ASME SA213 T5 boiler pipe, heat treatment was carried out after welding, the residual stress was eliminat

In the past ten years, with the development of ultra-supercritical units with large capacity and high parameters, higher quality requirements have been put forw

An important feature of T91 boiler steel pipe is that it has strong ability to form martensite by air quenching and can be quenched into martensite by air cooli

Shorten pickling time as much as possible; Secondly, add corrosion inhibitor to reduce hydrogen production.Hydrogen embrittlement (or hydrogen damage) of P11 al