These situations are very common in fabrication. If there is an
interruption to welding then at least wrap in fiber wool and slow cool
the weld. Make sure you are adequately preheating and soaking before
continuing the weld next day. Alternatively you can do post heating
after interruption of weld and slow cool.
Please follow the same concept for any power failures.
Thanks
Srini
On Dec 10, 9:24 am, srinivas rao <ksrv...@gmail.com> wrote:
> Dear All,
>
> While welding of ASTM A335 Gr P11, what to do if welding was stopped after
> Root Pass ,Hot Pass and One Fill-Up done without completing the job? Can we
> do immediately Post Heating for the un-finished job and continue welding
> next day? or Should we cut and re-weld the joint?
>
> I have one more doubt... In the above situation what if welding and
> Pre-heating(coil heating) was stopped due to power failure for 2 to 3 hrs
> and the joint has to come to room temp. Should the joint be cut and
> re-welded?
>
> Regards,
>
> Vasu
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