Re: [MW:17798] Polarity difference in WPS

Yes Polarity is an Essential variable according to AWS D1.1, Table 4.5  Point 13). You need to Qualify a new PQR if you change the polarity.

 

 

 

Thanks & Regards

J.Gerald Jayakumar
00968-99438165

From: Malusare Vijay <vijaymalusare07@gmail.com>
To: materials-welding@googlegroups.com
Sent: Saturday, May 25, 2013 3:15 PM
Subject: Re: [MW:17794] Polarity difference in WPS

Yes You Can Revised without re -qualification.

Regards,

Vijay Malusare

On Sat, May 25, 2013 at 4:31 PM, Lalu r p <lalucpt@gmail.com> wrote:

Dear Experts

In my company we have a wps qualified in last year with AWS D1.1 for structural steel welds.But now the client has raised a problem that in that wps the polarity of the electrodes which is used for the root run is wrong.The electrode used was E-7016-1 and as per standard the polarity should be +ve. But in place of that we used -ve polarity and the PQR is qualified with that.Since I am new to this company I have to solve the issue for submitting the final dossier.So my question is that whether  this WPS can be revised without re-qualification.

Thanks & Regards 

LALU R.P

QA/QC ENGINEER 

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