Maximum thickness he can weld as per 452.1b
Pipe OD from 73dia to above 24inch he can weld with limitations as per 461.9
Pipe OD from 73dia to above 24inch he can weld with limitations as per 461.9
From: anamulqc@gmail.com
Sent: 19-01-2016 07:55
To: Materials & Welding
Subject: [MW:24126] Qualified thickness for welder
Dear Sir,
-- We conducted welder qualification at Karbala Oil Refinery Project as per ASME-IX 2013 Edition.
WPS details as follow
1. WPS qualified base metal- P1 to P1 Gruop all
2. WPS mentioned base metal thickness range- 5 to 26 mm
3. Process FCAW
WQT details
1. Joint design Single V butt joint with back weld(Root side back grind then weld)
2. Base metal SA283-C
3. Thickness 16.0 mm
4. Sequence of welding- Root pass>Hot Pass>Filling>Capping>Back grind & Back weld
5. Test position 2G & 3G
My client inspector say welder will qualified only for 2T & Pipe Diameter will qualify over 24" I want to clarify is he correct? For thickness qualified he mention about QW-404.30
However I will appreciate to you for clarify my problem.
Regards
Anamul
QA/QC Engineer
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