wolfram mod. bainitic P122 and T23

[davefitz]

Does anyone have experience in fabricating boiler components using the new alloys P122 and T23(over 12 mm thk)?

These are wolfram ( tunsten) modified bainitic alloys developed 6 yrs ago.

 

[GRoberts]

Haven't done any myself, but Metrode has some technical papers available.

 

[stanweld]

ASME Code treats P23 as a P-5A material with regard to preheat and PWHT requirements.