is this longitudinal weld ?
This may be stress corrosion crack
* stresses from plate rolling and thermal weld stresses
* corrosion as it is appear in photo ( black spots ) and may be used tools containing halides ( marking colors ) .
* annealing after welding is very effective solution for reducing the tendency of stress cracking
* pickling did after welding ?
Best Regards ,
ENG. Ahmed Osman
On Tuesday, September 12, 2023 at 06:22:22 a.m. GMT+3, G Gughan <ggughan17@gmail.com> wrote:
Dear Experts,
Please find the attached picture for your deep & clear interpretation. After welding I have found a few transverse cracks along the weld. What could be the reason behind this? Kindly do technical advice or prevention for my understanding.
The material spec is SS201.
Is it a Material defect or a Crack formed due to welding?
Crack induced after a few days of welding not during welding & after immediate welding.
Kindly note that the pipe was formed/developed from the plate by the cold rolling.
Your advice & comments will be highly appreciated.
Thanks,
Kind Regards,
G.Gughan
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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