[MW:2168] Re: GTAW for pipe below 2"

Thank you for your valuable response

On Mon, May 11, 2009 at 8:23 PM, Sukamal Naskar <sukamalbecmet@gmail.com> wrote:

Code doesn't guide for the selection of welding process with respect to pipe / tube diameter. It's a common practice, it the dia is <= 2" , we prefer full GTAW.  But for non standard pipes , if the thickness is more, we can go for GTAW & SMAW. I have an experience of such kind of nozzle, 2" dia & thickness 17mm, we used GTAW & SMAW.

The advantage is better control in smaller diameter & less heat input in GTAW process.

 

Regards

Sukamal

On Mon, May 11, 2009 at 7:12 PM, tong tong <tong2je@gmail.com> wrote:

Dear all members,

I need your opinion and advise..it is mandatory to weld piping 2" and below with full GTAW..if yes which spec. or code we refer..Could anyone explain to me the advantage of full GTAW on welding of piping 2" and below..Thank in advance for your cooperation

Regards

Suhairi

--
Sukamal Naskar
Malaysia

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