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Join Date: Feb 2009
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Change in the WPS from the Butt weld to Fillet weld

06/04/2010 12:39 AM

I have WPS for butt welding, I would like to use it for fillet weld every thing is same, Material, electrodes & same PQR, can I use it ?, the only change on the joint desing, Iam not sure the joint design essential or non-essential.

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Commentator

Join Date: Dec 2007
Location: Pekin, IL USA
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#1

Re: Change in the WPS from the Butt weld to Fillet weld

06/04/2010 11:26 PM

No. The PQR would be different. Check the tables of prequalified weld joints for the proper parameters. Its possible that they are the same but then you will have the proper prequalified weld procedure.

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#2

Re: Change in the WPS from the Butt weld to Fillet weld

06/05/2010 4:16 AM

Mrs Abusaleem, please review in ASME IX the following items: QW 202.2, QW 451, QW 451.4 and QW 452.6 I hope that you are going to have the response there. AT

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#3

Re: Change in the WPS from the Butt weld to Fillet weld

06/05/2010 1:33 PM

The joint design is a non essential variable. Hence you can go ahead with the fillets using your but weld WPS.

Further in Procedure Qualification as per QW 451.4 fillet welds are qualified when a groove weld (butt joint) is qualified in accordance with QW 451.1

In performance Qualification also,as per QW 452.6, fillets welds are qualified when welder/welding operator qualifies on a groove weld test.

Trust it is clear to you.

Sridhar.

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#5
In reply to #3

Re: Change in the WPS from the Butt weld to Fillet weld

06/06/2010 2:31 PM

your answer is very good

the joint is non-essential variable, so changes may be made in the WPS in the joint without requalification according to ASME sec IX.

you do not need a new PQR, But you should to refer to the changes (fillet weld) in the WPS amendment (QW-200.1 (C).

Talaat Haggag

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#6
In reply to #5

Re: Change in the WPS from the Butt weld to Fillet weld

06/07/2010 12:22 AM

Thanks a lot.

Yes, the party has to make a separate WPS documentation to cover his fillet joint and attach his pre-qualified PQR of the butt joint to support it.

Sridhar.

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#4

Re: Change in the WPS from the Butt weld to Fillet weld

06/06/2010 1:09 PM

the joint is non-essential variable, so changes may be made in the WPS in the joint without requalification according to ASME sec IX.

you do not need a new PQR, But you should to refer to the changes (fillet weld) in the WPS amendment (QW-200.1 (C).

Talaat Haggag

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Participant

Join Date: Oct 2020
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#10
In reply to #4

Re: Change in the WPS from the Butt weld to Fillet weld

10/22/2020 3:34 AM

Mr. Talaat,

In such case, please through some light on the parameters that will be used for fillet weld.

Because my client says about the parameters that I will use, will be different.

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Member

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Posts: 9
#7

Re: Change in the WPS from the Butt weld to Fillet weld

06/08/2010 2:17 PM

A new WPQ shall be required to be run for a fillet weld inorder to satisy the technique.

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#8
In reply to #7

Re: Change in the WPS from the Butt weld to Fillet weld

06/08/2010 11:25 PM

New WPQ is not an essential requirement. Further fillet welds require less skill and ability on the part the welder compared to butt joint welding.

In performance Qualification, fillets welds are qualified when welder/welding operator qualifies on a groove weld test as per QW 452.6.

Sridhar.

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Commentator

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#9
In reply to #8

Re: Change in the WPS from the Butt weld to Fillet weld

06/09/2010 11:39 AM

The question is; what code are you required to fulfill? Review it for your answer.

In the United States the fillet weld qualifies an operator to weld a groove weld. A vertical up weld qualifies the fillet and groove as far as performance testing goes. For a wpq, position is an essential variable according to AWS.

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Anonymous Poster (1); RajamUmesh (1); Randouli (2); soulman300 (1); SRIDHAR (3); Talaat Haggag (2)

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