RE: [MW:11948] QW 200.4(b)

Hi,

I hope that Combine WPS may not be prepared with the individual - different process - PQR’s (Say GTAM+SMAW+SAW)

This is my view and experience.

If anyone is having the code provision against the above statement, request you please provide the clause no and code reference.

Thanks and Regards................?

Lakshman Kumar.B|Manager- QA/QC |Lanco Infratech Limited

Plot No 1255 | Sanjeevani chowk | Mahanadi vihar | Cuttack 753004

Phone : + 91 671 2445033 | Mobile : +91 9937286851 |www.lancogroup.com

Go Green|The future will thank you

Please note that my "Lanco group" mail is not working properly at some times, request you keep a copy to personal mail ID lakshmankumar4@gmail.com

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Karthik
Sent: Wednesday, July 27, 2011 2:07 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:11947] QW 200.4(b)

Hi,

You are right.While combine 2 or more wps's,the root pqr specimen shall be minimum of 13mm thickness.

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

Getabec Energy Co.,Ltd.

379,Moo6,Soi8,Nikhomphatana,

Rayong-21180,

Thailand.

Phone: 0066 38 897035-8 (Off)

Fax: 0066 38 897034

Hand Phone: 0066 892512282

--- On Tue, 7/26/11, yash yagnik <yash2223@gmail.com> wrote:

From: yash yagnik <yash2223@gmail.com>
Subject: [MW:11943] QW 200.4(b)
To: materials-welding@googlegroups.com
Date: Tuesday, July 26, 2011, 11:23 PM

Dear All,

Can anybody give detail interpretation of this clause??

For example I am describing below mentioned problem.

I want to weld 100mm thick plate for use of Heat Exchanger with Impact requirement and with the help of multiple processes - Root GTAW followed by SMAW and SAW.

I already have three PQR of individual process with GTAW - Thck 10mm , SMAW - 25mm thk and SAW - 50mm thk. All are satisfying imapct requirement.

NOW Can I use prepare a WPS with supporting of this three PQR?

My Interpretation of this clause is as under:

I can prepare this WPS with the help of this three PQR but my WPS will be qualified for thickness of 10mm to 20mm hence I cannot use this WPS for intended job.

If I can have PQR of GTAW with plate thickness of 13mm I can use this PQR and range will be 13mm to 100mm as root run GTAW PQR with thickness of 13mm or more will qualify for any greater thickness base material root run welding.

If my interpretation is wrong or any new ideas/views or Observations are there from you people i would like to understand it.

Thanks

Yash Yagnik

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