Re: [MW:10005] TECHNICAL CLARIFICATION 1- WPS AND PQR

Dear Mr.Moin..

 

1. Yes you have to mention each pass welding thickness when you are carrying out the welding of  particular joint  with two types of welding (like GTAW+SMAW, GMAW+SAW ,, etc) Each welding pass thickness qualified multiplied by two will give you the maximum thickness for which the particular welding process is allowed..

 

2. Not required

 

3. With single pass also you should monitor the interpass temperature..

 

br,

msms

 

On Wed, Feb 23, 2011 at 5:00 PM, Moin - QC <Syed.Moin@gerabgroup.com> wrote:

Dear friends,

I have few question related to WPS, I am trying to check whether it complies to XI though I am not  CSWIP certified or a welding engineer, appreciate if you could provide some information to me on the  following

1-      Is it mandatory to mention the qualified weld metal thickness on WPS, if yes  what should be qualified weld metal thickness for a test coupon 9 mm thick and welded by GMAW and SAW process , should it be 2t as per table QW 451.1?  How to find '' t'' before doping welding?

2-      Is it mandatory to mention the lot number of flux& wire on the WPS, if No could you please provide me reason?

3-      My understanding is if the welding is single pass than interpass temperature does not come into picture is it true?

Thanks & Regards
Syed Moin                               

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