RE: [MW:10749] QW -350 WPQ WELDING VARIABLES; P-Number Clarification,,,

The PQR has demonstrated that the base metals can be welded and appropriate properties can be met with a selected filler metal under specific conditions.

 

The welder performance test demonstrates that welder has the skill and ability to make a sound weld deposit with the process and required filler metal.  Therefore the choice of base metal is expanded, per QW-423, to broad types and is why P-Number is not an essential variable.  

 

John

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Zakaria ghrab
Sent: Tuesday, April 19, 2011 11:39 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:10748] QW -350 WPQ WELDING VARIABLES; P-Number Clarification,,,

 

Hi,

means if welder is qualified in one of P1 to P11, P34, P41toP49 (homogen P number material) he's qualified to weld  all homogen material Pnumber P1 to P11, P34, P41toP49. Just take care of others essential variables.

Regards

2011/4/19 Srinivas Engr <srinivas.gmsrini@gmail.com>

Dear All,

as per ASME sec 9,

For welder qualification,
as per QW -350, P-Numbers are essential variable.
so change in p number needs to requalified.
& G-Number is not an essential variable. its no issues with G-Number.

1) My question is the above said are right or not..?
If any correction. pl let me know...

Q2) & is the welder qualified to weld P1 to P11, P34, P41 to 49.?

clear me on above issues..

Thanks & Regards
Srinivas

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

--

زكرياء غراب
GHRAB Zakaria
مسؤول عن الجودة
QA/QC SENAD
مشروع المحطة الحرارية ـ الوحدة الرابعة
المحمدية ـ المغرب

 

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.