Can a welder’s certificate cover the welded parts?
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I have a question: if the thickness of a single welder’s certificate isn’t sufficient to cover the welded area, can two welders working together on the same weld cover it? Thank you. Currently, the thickness of the test pieces for each welder is 6 mm, with a maximum coverage range of 12 mm, and the thickness of the welded parts is 14 mm.
The specifications clearly specify that the scope applies to the thickness of the weld metal in the welded parts, rather than the thickness of the base material; by following this approach, there are no issues with the welder’s qualifications.
Using two welder’s certificates should be sufficient; the thickness of the test piece is 6 mm, and it is suitable for welds with a metal thickness of 12 mm.
No. The thickness range specified for a welder’s certificate applies to an individual welder; even if two welders work together on one weld, their respective thickness qualifications cannot be combined to cover a weld thickness that exceeds the limits allowed by that individual welder’s certificate. The thickness of the welded piece, 14 mm, exceeds the maximum thickness of 12 mm allowed per welder’s certificate; therefore, the welder needs to take another welding qualification test for that thickness. .