Re: [MW:14957] backing vs back weld

Dear Pravi nair.

Refer ASME SEC IX 2010 QW 310.2 & QW 310.3

I THINK YOU WILL GET CLEAR.

Naved David

On 7/24/12, Pravi Nair <praveen.nair.k@gmail.com> wrote:
> Dear expert's,
>
> anybody can give me a calrification regarding backing & back weld
>
> as per my knowledge ,welding with back strip,retainers or weld metal
> (double bevel groove) can considered as backing
>
> single bevel groove ,welding filled from groove side then gouged from
> inside root and finish with one single layer or more called back weld
>
> qustns
>
> 1) is anywhere in the code given any t limitation or how many layers can
> weld from inside root (single bevel groove) for back weld ? (more layers
> can consider as double bevel is it rit)
> 2) one wleder qualified in 16 mm plate single bevel groove with backing,
> can he weld a double bevel groove of 30mm plate or not ?
> 3) one welder qualified for 16 mm plate single bevel groove with
> backing,can he wled a single bevel groove of 8 mm plate with back weld ?
>
>
> thanks in adavnce
>
> praveen
>
> --
> To post to this group, send email to materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@googlegroups.com
> For more options, visit this group's bolg at
> http://materials-welding.blogspot.com/
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
>

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.