Welder Qualification D1.1 1

alpha175b · Sep 6, 2004

Reference table 4.8 AWS D1.1 2000

For the fillet weld qualification test (plate), the table indicates that this also qualifies for production pipe fillet welds.

So if a welder qualified on the fillet weld plate test, would he be qualified to weld flanges onto the ends of 4" pipe?

Thanks

Ron · Sep 13, 2004

No. The fillet weld qualification on plate only qualifies one to weld a straight line(parallel to its axis), not circumferential fillets on pipe, unless the pipe is 24 inches in diameter or greater. (See Note 1 of Table 4.1, AWS D1.1). A small diameter pipe does not have a straight line axis for a circumferential weld.

Not very many applications where you'll have a longitudinal fillet weld for pipe!

Why not use the pipe fillet qualification? That will suffice for plate, pipe, and box tubes.

alpha175b · Sep 30, 2004

Thanks Ron, that cleared up my confusion, thanks for the reply - that answered my question exactly.

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Welder Qualification D1.1 1

alpha175b

Civil/Environmental

Ron

Structural

alpha175b

Civil/Environmental

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