Pipe crack after welding
Pipe crack after welding
(OP)
Good day everyone,
May I ask about our pipe that after welding it cracks.
-pipe is a106 GRB.
-Size 2inches schedule 20
-distance between two welds is 150 MM
-pre heating is 10 degree celcius
-no pwht
What could be the possible reason for this?
This is the first time i saw like this.
Our past experiences in middle east,
welding 2 inches even in closer distance apart
the pipe did not crack.
Please see the attached photo.
Thanks every one.
May I ask about our pipe that after welding it cracks.
-pipe is a106 GRB.
-Size 2inches schedule 20
-distance between two welds is 150 MM
-pre heating is 10 degree celcius
-no pwht
What could be the possible reason for this?
This is the first time i saw like this.
Our past experiences in middle east,
welding 2 inches even in closer distance apart
the pipe did not crack.
Please see the attached photo.
Thanks every one.





RE: Pipe crack after welding
A photograph you mentioned was not attached to your post so without any further information you can sort out each of the possibilities I mentioned.
RE: Pipe crack after welding
due to slow connection i was not able to attached the file.
the photo is now available, please re access my thread. thanks
RE: Pipe crack after welding
RE: Pipe crack after welding
the length between two joints is approx 15mm.
Thanks in advance
RE: Pipe crack after welding
RE: Pipe crack after welding
RE: Pipe crack after welding
RE: Pipe crack after welding
RE: Pipe crack after welding
It is a longitudinal crack.
and have a 10degree C preheat.
Is there any factory defect can be considered also in determining the cause of the crack?
RE: Pipe crack after welding
Lot of weld on that Olet for very thin pipe.
RE: Pipe crack after welding
RE: Pipe crack after welding
Recommend you scrap all pipe from the same lot.
"Everyone is entitled to their own opinions, but they are not entitled to their own facts."
RE: Pipe crack after welding
RE: Pipe crack after welding