[MW:4496] RE: 4495] Welder Qualification as per ASME IX

You can weld only 25mm OD onwards. you need weld with same or lesser dia coupon to qualify.

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Larry
Sent: Tuesday, March 09, 2010 9:42 AM
To: materials-welding@googlegroups.com
Subject: [MW:4495] Welder Qualification as per ASME IX

Hi There,

 

Our welder is qualified to weld CUNI on a 6G position 40mm diameter (test coupon size on PQR) as per ASME IX qualification. My question is, is he also qualified to weld a CUNI 20mm diameter tube using the same WPS?

 

 

Cheers,

 

Larry Zarate