RE: [MW:6486] Re: Welder qualified

Dear All,

 

As P-Number is an essentially variable, when the welder qualified with the P-1 WPS,PQR cannot be used for the P-4 material, hence requalification if required. It is for your kind attention QW 433 describes about F-No. only not about the P number.

 

Regards,

Prasanna.R.U.

Bureau Veritas,Chennai

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Muhammed Ibrahim PK
Sent: 13 August 2010 17:26
To: materials-welding@googlegroups.com
Subject: Re: [MW:6482] Re: Welder qualified

 

Hi,

 

Yes, he can weld with backing. Refer QW 433 table.

Thanks & Regards
Muhammed Ibrahim PK

On 13 August 2010 14:46, Balaji <balaji.weldingeng@gmail.com> wrote:

Dear Venkat
                 Nope. He can't weld P-4 material using
E8028 electrodes, since F numbers are different. As per Sex IX, for
welder qualification, F numbers are essential variables.


Regards

Balaji
On Aug 12, 2:53 pm, venkat ramana <venkatgps.ram...@gmail.com> wrote:
> Dear All,
>
> Please let me know, my query is A welder was qualified with a P-1 test
> coupon using SMAW E7018 electrodes. May the welder weld P-4 material using
> E8028 electrodes with backing in production? (Assume the P-4 procedure using
> E8028 electrodes has been qualified)
>
> Thanks & Regards
> Venkat

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