PWHT of blind flanges

14 views
Skip to first unread message

Muhammed Ibrahim PK

unread,
Sep 4, 2025, 9:06:54 AM (3 days ago) Sep 4
to material...@googlegroups.com
Dear All,

Is it required to place permanent blind flanges in the furnace when the vessel requires PWHT ?. 

If there is handle welded on blind flange, PWHT required ?


Thanks & Regards
Muhammed Ibrahim PK

sridhar cn

unread,
Sep 4, 2025, 11:43:09 AM (3 days ago) Sep 4
to material...@googlegroups.com
Permanent blind flanges may not require PWHT, any welds associated with them typically do, if they affect 
the structural integrity. But if the handle is a temporary weldment, and removed later or if the fillet is small,
then PWHT is not needed. 
C Sridhar.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/materials-welding/CALOPgmMeBUXfY3uqO9JdxG3cSLXtEVvrnekekCZFs%2BBV%2BDOAmw%40mail.gmail.com.
Reply all
Reply to author
Forward
0 new messages