Re: [MW:7774] ASME BPV SEC IX Material Range issue

Dear Limesh,

 

My interpretation with QW-403.5 as Below.

 

1. Is there any problem for welding P1 Group No.1 to P1 Group No.1  &  P1 Group No.2 to P1 Group No.2 based on above PQR?

You Cannot write WPS for the above combinations with existing PQR.

.2.Can I write separate WPS (with impact test) based on above PQR for,

Material – P1 Group No. 1 to P1 Group No. 1

Material – P2 Group No. 2 to P2 Group No. 2

 

However, if you have the PQR Qualifications for the P1 Group No. 1 to P1 Group No. 1 & P1 Group No. 2 to P1 Group No. 2 combinations with same essential, non-essential variables,

 

Then you can write the WPS for  the P1G1 to P1 G2 , with qualifying P1G1 to P1G2  materials.

 

 

Thanks & Regards

 

K.Babu

Singapore

 

 

 

----- Original Message -----

From: limesh M

To: Materials & Welding

Sent: Sunday, October 24, 2010 10:42 PM

Subject: [MW:7767] ASME BPV SEC IX Material Range issue

Dear All,

 

I need your help in the following subject.

 

Design Code – ASME B31.3

Welding Code – ASME BPV SECTION IX

I have a PQR for the following material classification as per ASME BPV SEC IX

Material – P1 Group No. 1 to P1 Group No. 2

Weld Metal Impact Tested – Yes

 

My query is that,

1. Is there any problem for welding P1 Group No.1 to P1 Group No.1  &  P1 Group No.2 to P1 Group No.2 based on above PQR?

2.  Can I write separate WPS (with impact test) based on above PQR for,

Material – P1 Group No. 1 to P1 Group No. 1

Material – P2 Group No. 2 to P2 Group No. 2

 

My next query is that,

Is there any problem for showing all material range in a single WPS based on above PQR?

Ie, qualified range of materials- P1 Group No. 1 & P1 Group No. 2 in the same WPS.

 

 

Regards,

 

Limesh

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