PWHT
PWHT
(OP)
Dear expert,
Please enlighten me the requirements of this
"Hot forming operations or bending above the final PWHT temperature are applied for the vessels or vessels parts during fabrication heat treatments of quenching and tempering, or normalizing and tempering heat treatments same as required for the original product shall be carried out and mechanical properties shall be confirmed."
Thanks in advance
Benjie.
Please enlighten me the requirements of this
"Hot forming operations or bending above the final PWHT temperature are applied for the vessels or vessels parts during fabrication heat treatments of quenching and tempering, or normalizing and tempering heat treatments same as required for the original product shall be carried out and mechanical properties shall be confirmed."
Thanks in advance
Benjie.





RE: PWHT
RE: PWHT
From where are you citing that quotation? For ASME Section VIII work, if you hot form UHT material above the tempering temperature, you must re-quench and temper the material. If you hot form UCS material above the lower transformation temperature, the material must be represented by mechanical testing reflecting heat treating the material at the hot forming temperature.
RE: PWHT