[MW:13603] RE: 13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

Hi

A welder can basically qualified on a qualified WPS. In your case, the WPS is with backing but the welder is qualified without backing which is conflicting. Even though the  deletion of backing is not an essential variable for a WPS, either you have to rewrite the WPS with backing (if qualified for that) or have to qualify the welder on without backing WPS. In addition, the WPS number shall be reflected in the welder qualification certificate.

See the excerpt below from Sec IX which clearly states the performance qualification on qualified WPS

BR

M.Vijayan

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Aly
Sent: Tuesday, January 31, 2012 8:07 PM
To: materials-welding@googlegroups.com
Subject: [MW:13596] WPS with baking for welding single side welded Joint without backing with qualified Welder without backing

 

Dear experts,   Could you please clarify following;   If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.   Thanks in advance   Ali Mhaskar

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