X11CrMo9-1+NT seamless steel pipe/ tube Chemical Composition (%)

X11CrMo9-1+NT seamless steel pipe/ tube Heat Treatment
Normalizing and tempering: 890-950°C, air cooling; Tempering: 720-800°C, air cooling. It may be necessary in the case of wall thickness T above 25 mm or T/D > 0,15 to apply quenching and tempering in order to achieve the intended structure and material properties.