WELDER QUALIFICATION

[fernin]

Hi all,

I have a question for the ASME expertis,

It's clear for welding procedure qualification, as stated QW-211, plate qualifies pipe and vice versa, but in case of welder qualification, Does plate qualify pipe and vice versa??

Regards.

 

[david339933]

See Table QW-461.9

 

[weldinginspections.net]

Yes fernin,
Welder qualified on plate also qualify for pipe, range of qualification shall determine in the following tables:
- Table QW-452.1 (b) - thickness of weld metal qualified.
- Table QW-461.9 - position and diameter limitations.

Thanks and glad to help you.

sincerely yours,
The WeldingInspections.Net

https://weldinginspections.net/t/7

 

[Ishack]

For flat position yes...
for other position, still yes with limitations like 24" and above

 

[gtaw]

If you want a simple general answer; plate qualifies for structural shapes, not including tubulars, whereas qualifying on pipe qualifies the welder for both pipe and structural shapes. Remember what the abbreviation ASME stands for: Always, Sometimes, Maybe, and Except. You need to read ASME Section IX closely to see how your specific case is handled.

Best regards - Al