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msurendra
Active Contributor

Join Date: Apr 2010
Posts: 10

WPS

08/19/2011 7:43 AM

I Have a WPS with base material P1 and Group G1.

Shall I have to go for another WPS according to ASME section 9,if base materials comes under P-1 but group G-1 and G-2?
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#1

Re: WPS

08/19/2011 7:55 AM

WPS - "water pumping station"?

Please perform an acronymectomy.

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Zerk
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Join Date: Aug 2011
Posts: 1
#2

Re: WPS

08/26/2011 1:33 PM

Per ASME IX, changing Group Numbers is non-essential, so it will require a change to the WPS but doesn't need to be requalified. If your PQR used Group 2 material and impact testing was performed, should should just need to change the WPS. If only Group 1 material was used and no impacts, you will need a new WPS and PQR.
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