Dear experts, A vessel is subjected to PWHT due to wet sour service. Is it mandatory that PQR needs to be qualified with PWHT cycle complying with NACE MR 0175 or compliance with UCS-56 would be sufficient? All material conform to the requirements of NACE MR 0175 / ISO 15156. Thanks for your kind input.
Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
PWHT due to wet sour service
- Thread starter ALA445
- Start date
PWHT is not mandatory based on ISO-15156 although it is one of the best ways to comply with the hardness requirement.
But in case PWHT is possibly applied due to any reasons(ex., fails to comply with hardness), PQR shall cover the property on the expected number of cycles by PWHT.
Sihyoung Lee,
But in case PWHT is possibly applied due to any reasons(ex., fails to comply with hardness), PQR shall cover the property on the expected number of cycles by PWHT.
Sihyoung Lee,
- Status
Similar threads
- Locked
- Question