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Anonymous Poster #1

Welding Procedure Deviation from PQR

08/08/2013 1:23 AM

A PQR was welded using a 40mm plate by FCAW. The first half of the butt-weld was welded with a shielding gas mixture blend of 90% Argon and 10% CO2. The other half of the weld was welded with a shielding gas mixture blend of 75% Argon and 25% CO2. The WPS was produced but it was only reflecting the shielding gas mixture blend of 75% Argon and 25% CO2. Is the WPS acceptable in accordance with ASME Section IX QW-408?
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Whitephone
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Join Date: Jan 2010
Location: Mineral wells Tx
Posts: 630
Good Answers: 34
#1

Re: Welding Procedure Deviation from PQR

12/04/2013 5:29 PM

NO, never. For FCAW Gas Mixture is Essential Variable. Review ASME IX 2010 edition QW-255 and QW-408.2.

WP
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