Re: [MW:11928] Welding Process Restriction

no restriction, you can use as there is no diamter restriction for procedure qualification in ASME.

On Tue, Jul 26, 2011 at 6:13 AM, Candice Law <candice.law@penergy.com.my> wrote:

 

Expert,

I have a 2 WPS qualified range as below:

1)     WPS A – Qualified Thickness Range from 1.6mm – 11.08mm ; diameter range is all diameter. (Gtaw process)

2)     WPS B – Qualified Thickness Range from 4.8mm – 22.0mm ; diameter range is all diameter. (Gtaw + Smaw process)

Both are qualified under ASME IX and for material with P No.1

 

Now, I need to weld a A106 GrB pipe 4" Sch40, can I use WPS A? Full Gtaw for 4" pipe? Any restriction for welding process pertaining diameter as in ASME IX?

 

Please Advice.

 

Thanks

 

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