15NiCuMoNb5 pipe chemical composition and Mechanical property are shown as figure below:
|15NiCuMoNb5 chemical composition (％)|
|Material||Yield strength( Mpa)
at RT ———- 350℃
|Ultimate tensile strength
|Uniform elongation A₅(%)|
This grade is mainly used in high-pressure, medium-temperature feedwater lines (close to 400 °C).
WB36 exhibits excellent high-strength properties up to 450 °C. The reduced weight of the feedwater piping components compared with conventional carbon steel allows improved resistance to thermal fatigue and very good heat transfer.