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 LittleInch on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

PWHT of Tube to Tubesheet welding

Status
Not open for further replies.

engineermat

Mechanical
Joined
Mar 17, 2008
Messages
47
Location
US
If the heat exchange tube side in sour water service (or caustic, amine service, is PWHT required for tube to tube sheet welds?

Thanks.
 
No, you cannot PWHT the tubesheet + tubes because there is risk of breaking the weld (by the way, breaking the strength of tube expansion also), due to differential expansion of the assembly in the furnace.
Cheers,
gr2vessels
 
I heard that the manufacturer perform PWHT for Cr-Mo tube to tube sheet welds. Is it true?
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top