WPS with multiple PQR

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Ahmed Husain

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Jun 23, 2013, 12:00:08 PM6/23/13
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Dear All, 
 
Followings are brief details of five PQRs.
PQR No.                 Process                       Base metal                             B.M. Thick      B.M. RANGE              PWHT                         Impact
 
#1                     SMAW                        P1Gr3 to P1Gr3                      0.24 Thk         1.6 -12                        N/A
#2                    SMAW                        P1GR3-P1GR2                        0.24 Thk          1.6 -12                         N/A                              YES (-51 F)
#3                    SMAW                        P1Gr3 to P1Gr3                      1.5 THK           16 - 200                       1150/10 HRS              YES (-51 F)
#4                    SMAW                        P1GR3-P1GR2                        1.5 THK           16 - 200                       1150/08 HRS               ES (-60 F)
#5                    SMAW                        P1Gr3 to P1Gr3                      1.75 THK         16 - 200                       N/A                              YES (-51 F)
 
 
Based on above PQRs,
 
1.    Is it acceptable to prepare  a single  WPS with two welding condition ( with and without PWHT), with notes stating thickness limits for both conditions.
2.    If yes, what would be thickness range for welding with & without PWHT.
3.    With reference to ASME IX- QW-200.4 Combination of Welding Procedures,: If a company has two WPS, one in GTAW process and second in SMAW process, is it acceptable to apply individually both WPS on single joint? Or new WPS will be required combing both WPS?
 
 
 Your valuable feedback will be highly appreciated.
 
Regards,
A.Husain
 


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veera raghava kommisetti

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Jun 23, 2013, 2:02:22 PM6/23/13
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Q1 - No
Q2- N/a
Q3- You need write new WPS by combining existing WPS (No new PQR required)


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Samehamin

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Jun 24, 2013, 2:15:05 AM6/24/13
to material...@googlegroups.com, Ahmed Husain
dear ,

for third point it is ok to use two WPS in the same joint with maintain the thickness range but need to write a WPS with referance to the two PQR

Q1 & Q2 cant be as PWHT is essential  variable 

joseph mbé

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Jun 24, 2013, 4:06:32 AM6/24/13
to material...@googlegroups.com
see my answer here below in red
 
Joseph Faustin Mbe
QA/QC Engineer
TEL CMR (00237) 33129846
TEL CG (00242) 057388009
BP 1155 Pointe Noire
Yesterday is the pass, tomorrow is the future; and today? Today is the present, the gift: Enjoy it!
 


De : Ahmed Husain <ahm...@yahoo.com>
À : "material...@googlegroups.com" <material...@googlegroups.com>
Envoyé le : Dimanche 23 juin 2013 17h00
Objet : [MW:18005] WPS with multiple PQR

Dear All, 
 
Followings are brief details of five PQRs.
PQR No.                 Process                       Base metal                             B.M. Thick      B.M. RANGE              PWHT                         Impact
 
#1                     SMAW                        P1Gr3 to P1Gr3                      0.24 Thk         1.6 -12                        N/A
#2                    SMAW                        P1GR3-P1GR2                        0.24 Thk          1.6 -12                         N/A                              YES (-51 F)
#3                    SMAW                        P1Gr3 to P1Gr3                      1.5 THK           16 - 200                       1150/10 HRS              YES (-51 F)
#4                    SMAW                        P1GR3-P1GR2                        1.5 THK           16 - 200                       1150/08 HRS               ES (-60 F)
#5                    SMAW                        P1Gr3 to P1Gr3                      1.75 THK         16 - 200                       N/A                              YES (-51 F)
 
 
Based on above PQRs,
 
1.    Is it acceptable to prepare  a single  WPS with two welding condition ( with and without PWHT), with notes stating thickness limits for both conditions. (why not 2 different wps )
2.    If yes, what would be thickness range for welding with & without PWHT. (PWHT is an EV so, not possible for my knowledge)
3.    With reference to ASME IX- QW-200.4 Combination of Welding Procedures,: If a company has two WPS, one in GTAW process and second in SMAW process, is it acceptable to apply individually both WPS on single joint? Or new WPS will be required combing both WPS? (Are you talking about 02 PQR or 2 WPS? if 02 PQR, Yes it's possible to use the combination of 02 PQR qualified separately but, in the limite of tickness range for each process). 
 
 
 Your valuable feedback will be highly appreciated.
 
Regards,
A.Husain
 


The contents of this email, including all related responses, files and attachments transmitted with it (collectively referred to as “this Email”), are intended solely for the use of the individual/entity to whom/which they are addressed, and may contain confidential and/or legally privileged information. This Email may not be disclosed or forwarded to anyone else without authorization from the originator of this Email. If you have received this Email in error, please notify the sender immediately and delete all copies from your system. Please note that the views or opinions presented in this Email are those of the author and may not necessarily represent those of Saudi Aramco. The recipient should check this Email and any attachments for the presence of any viruses. Saudi Aramco accepts no liability for any damage caused by any virus/error transmitted by this Email.

Ahmed Husain

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Jun 25, 2013, 12:18:01 PM6/25/13
to material...@googlegroups.com
It means, It is not correct to prepare a WPS supported my multiple PQR, with two condition, i.e. with PWHT and without PWHT. Also, instead of using two WPS on one joint, a new WPS is required to be prepared combining both WPS.
 
Please correct me if I am wrong.
 
Regards,
A, Husain

 
----- Forwarded Message -----
From: joseph mbé <mbej...@yahoo.fr>
To: "material...@googlegroups.com" <material...@googlegroups.com>
Sent: Monday, June 24, 2013 11:06 AM
Subject: Re: [MW:18018] WPS with multiple PQR
see my answer here below in red
 
Joseph Faustin Mbe
QA/QC Engineer
TEL CMR (00237) 33129846
TEL CG (00242) 057388009
BP 1155 Pointe Noire
Yesterday is the pass, tomorrow is the future; and today? Today is the present, the gift: Enjoy it!
 

John Henning

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Jun 25, 2013, 4:40:21 PM6/25/13
to material...@googlegroups.com

It certainly is permissible to write a properly supported WPS with multiple conditions.  However, one starts to get into a booking keeping nightmare if one is not very, very careful.  You must provide clear instructions on the applicability so you don’t get into deep trouble due to misapplication.

 

John A. Henning

Welding & Materials


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