Re: [MW:27332] P-22 plate welding ...6-MM plate

Dear Pradip,

This is due to chance of sudden cooling.

Please cover with rock wool insulation allow slow cooling,

Regards,

PETER SOLOMAN

On Sun, Feb 11, 2018 at 2:38 PM, pradip kumar Sil <pradipsil@gmail.com> wrote:

Dear Everybody,

We are doing  P-22 plate welding, thickness is 6 mm with E-9018B3 ( Dia 2.5 mm) electrode. Preheat is 150 to 200 degree centigrade with little beveling. Site is near the sea area.

We found lot of delayed crack  generally after 12 hours. Crack is coming middle of the weldment.

Can anybody inform me cause & corrective action for the same. 

Pic attached for your ready reference.

Thanks in advance.

Regards,

--
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-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

--
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-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.