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Re: [MW:18428] Re: Welder qualification on small OD pipe

By Materials & Welding
Dear Expert,

As, Pipe OD is 10.3mm only...even after using four specimens, total weld length become 130mm only....it means radiography is not possible.
Can we go for bend test to qualify welders??? If yes how many bends to be taken..I believe its four....wt say???

RGDS

From: Harikrishnan N S <hari.qaqc@gmail.com>
To: materials-welding@googlegroups.com
Sent: Wednesday, 14 August 2013 10:05 AM
Subject: [MW:18424] Re: Welder qualification on small OD pipe

Rohit

As per Sec IX, the NDE requirement (for performance qualification) is a weld length of 150 mm or 4 test coupons at least. Ref. QW 302.2

Regards
Harikrishnan


On Tuesday, August 13, 2013 5:16:28 PM UTC+8, Rohit mn wrote:
Dear Experts,
 
Can we qualify welders on 10mm OD Pipe (1.73mm wt) by radiography....If Yes how many specimen to be radiograph...If No What are the other option as per ASME Sec. IX
Welding procees is GTAW.
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Rh
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