What will be reference WPS no. in PQR( Preliminary WPS or New WPS)

[Mhaskar Aly]

Dear Friends

Kindly respond to my below query

 

To qualify a welding procedure we make Preliminary WPS (Suppose no. is ABC-PWPS-001, Rev-0) where we mentioning parameters ranges to be followed to qualify welding procedure (Weld metal thickness for each process, thickness of base metal, , Preheating temp, Inter pass temp, Position, backing etc),

 

As per procedure we qualify procedure (ABC-PQR-001) in PQR, whereas while final signing of WPS & PQR we make new WPS (ABC-WPS-001, Rev-0) with latest date (date same PQR date) where we show qualified ranges for above parameters…

 

My Question is;  in PQR, what will be reference WPS no. (Preliminary WPS or New WPS)

 

Kindly put some light on this, what is the practice being followed in industries.

 

Ali Mhaskar

UAE

 

[rudolf saldanha]

Hi, there is no hard and fast rule to mention either Preliminary WPS or the final WPS no. You can also ignore putting the pWPS or WPS no. when qualifying the PQR.

 

Normally I would give the same no for the WPS i.e. ABC-FCAW-001, but in the PQR, I would edit the WPS no, to read as pWPS No. ABC-FCAW-001. After the PQR is successful I would give the no. ABC-FCAW-001 Rev 0, Rev 1 ... so on and so forth. BUT that's what I follow and I don't insist you do that.

You are free to do what suits best for you.

 

 

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[shaikh ahmed]

Dear Aly,

 

PWPS -- It is trial for the record

WPS -- fINAL Procedure

PQR--you have to indicate , supporting WPS ( final WPS).

 

Regards,

Ahmed

--

[naina gani]

In PQR should be represent the PWPS only

 

 

Thanks & Best Regards

 

Meeran

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From: shaikh ahmed <ahmed...@gmail.com>
To: material...@googlegroups.com
Cc: raj_mu...@rediffmail.com
Sent: Thursday, July 11, 2013 9:37 AM
Subject: Re: [MW:18134] What will be reference WPS no. in PQR( Preliminary WPS or New WPS)

[Rudolf]

Hi when you say " you have to indicate" it means that it becomes mandatory. May I request if you can refer to code to show that wps no. Must be written in the pqr. 

Thanks 

Sent from my iPhone

[Bhagwat Ambule]

Dear Mr.Ali,

PQR to be make on the basis of Proposed WPS ( R0 and values are consider with specification or requirement )and whatever value or figures are putted in proposed WPS. If after testing if our proposed value not match with specification on that basis we can revise our R0 WPS as R1 and re-PQR till specification not achieved in that case reference is always previous PQR no.

Thanks and Regards,

Bhagwat Ambule.

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From: Mhaskar Aly <mhask...@gmail.com>
To: material...@googlegroups.com
Cc: raj_mu...@rediffmail.com
Sent: Thursday, 11 July 2013 9:47 AM
Subject: [MW:18127] What will be reference WPS no. in PQR( Preliminary WPS or New WPS)

[perumal govindan]

Dear Mr. Ali,

With reference to your email, the WPS Number (ABC-WPS-001, Rev-0) not a pWPS number should be mentioned on your PQR if you qualified as per ASME Section IX:2010. WPS Number is a final document number of your recently / previously qualified PQR.

In case if you qualify a PQR as per DNV-OS-C401, there is not required to mention the WPS Number in your PQR. For more info please refer your project / Client qualification standard for welding procedure qualification.

P Govindan

On Thu, Jul 11, 2013 at 9:47 AM, Mhaskar Aly <mhask...@gmail.com> wrote:

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[John Henning]

WPS reference is not a Code requirement (neither pre-WPS nor final WPS).  It is strictly optional, if you choose to do it.  If you so choose, it is your option to enter whatever you prefer or your quality system requires.

 

John A. Henning

Welding & Materials

 

From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Mhaskar Aly
Sent: Wednesday, July 10, 2013 11:17 PM
To: material...@googlegroups.com
Cc: raj_mu...@rediffmail.com
Subject: [MW:18127] What will be reference WPS no. in PQR( Preliminary WPS or New WPS)

 

Dear Friends

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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.
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[rudolf saldanha]

Hi, Ahmed,

The attached file will explain clearly.

Thanks 

Rudolf

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From: Rudolf <rudol...@yahoo.com>
To: "material...@googlegroups.com" <material...@googlegroups.com>
Sent: Thursday, 11 July 2013, 16:12
Subject: Re: [MW:18139] What will be reference WPS no. in PQR( Preliminary WPS or New WPS)

[Muhammad Naveed Sabir]

There are two answers against your Question:

Answer 1= you can write there “ WPS to be Qualified “

                                         OR

Answer 2:  you can write the Preliminary WPS (ABC-WPS-001, with Rev-0) later than when you qualify the PQR , prepared the WPS you can use the same number (ABC-WPS-001 With Rev.01)

For your Information we already done this practice at our project.

Regards,

Muhammad Naveed Sabir

Engineer QA/QC

Etimaad Qatar LLC.

00974-55799165

Naveed.s...@gmail.com

[Nazrulla Khan]

Sir,

In my opinion

The WPS might not be code requirement, but as we mention as "REFERENCE WPS" used in PQR, mentioning ABC-WPS-001, Rev-0 will give justice to the words.

Regards

Naz

[John Henning]

Firstly, a trial or pre-WPS is just that – it is a starting point for developing your actual PQR.  The trial WPS may be based on manufacturer recommendations, some information from other users, or past experience.  During the performance of PQR welding, it is often the case that  optimization will result in parameters that are not necessarily in agreement with the initial “guesses” made at welding parameters.  What, then, is the value of such a document?  Note that your PQR welding is not tied to this document or any other per Code.

 

Secondly, if the PQR is used to support more than one actual WPS are you going to report each use on the PQR? 

 

The fact is still this is a CHOICE by the originator of the PQR/WPS.  It is NOT a Code requirement, as many on this group seem to think.  There is no basis for demanding this from a fabricator or supplier.    

 

In my opinion this is simply a waste of time, results in excess paper retention, and serves no purpose.  No PQR I have developed over the past 30 years has incorporated this information. To boot, ASME Section IX agrees with this point view based on the interpretation attached by another respondent to this thread.

 

PS – the only “justice” your PQR needs is acceptable test results.  IF your test results (Code and any additional) are good, your PQR parameters have been justified.

 

John A. Henning

Welding & Materials

 

[Octane Mac]

Aly,

First of all preliminary welding procedure specification is not a code requirement.

If you make one then this is truly your own system. One can get a procedure qualified even without any documented pWPS.

Therefore, this indicates that providing the WPS number on PQR is optional.

Octane