Re: [MW:31414] Welder qualified 2 7/8 OD, whether he can weld 2” NPS

Dear Murali,

2" NPS OD will be 60.3 mm only. So You need separate qualification
for 2"NPS connection as per ASME Sec IX.

On 9/9/20, 'james gerald' via Materials & Welding
<materials-welding@googlegroups.com> wrote:
> I suppose you use GTAW + SMAW process.
> For GTAW you need to perform welder qualification for 2inch NPS.
> Upon deposition of 2 passes the OD varies and convince your client by
> practically measuring the OD for SMAW process
>
> Thanks & Regards
>
> J.Gerald Jayakumar
>
>
>
>
>
> On Wednesday, 9 September, 2020, 10:57:04 am GMT+7, Murali Krishnan
> <muraligkrishnan@gmail.com> wrote:
>
> Greetings,
> I have a weldolet 2" NPS X OD 82 mm, I want to use the welder qualified for
> 2 7/8 (73 mm) & over.
> Query initiated by client that as per ASME SEC IX Table QW 452.3 foot note
> (b) states that 2 7/8 in. (72mm) O.D. is the equivalent of NPS 2 1/2 (DN
> 65). In this case the welder client says welder is not qualified for 2 inch
> NPS.
>
>
> since the welder qualification essential variable is OD inline with ASME SEC
> IX, kindly advice.
>
> If any reference kindly share the same.
> Thanks Murali
>
> --
>   Thanks and Best Regards, G.Murali krishnan
> Mob : +966-501487307
> Saudi Arabia
>
>
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--
With Regards,

Sandeep.P.Raghavan

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