Shop Weld Oversized
Shop Weld Oversized
(OP)
We have two situations on project where a 3/4" plate is welded to a tube section on its face. The welds are oversized (more than our calculations). For example, at 3/8" tube wall has a 3/8" weld on its face and a 5/16" tube wall also has 3/8" weld on its face. This is against the code I believe. The code dictates the maximum weld is t-1/16". Is this oversize weld ok?





RE: Shop Weld Oversized
RE: Shop Weld Oversized
RE: Shop Weld Oversized
Or since the "edge" is of the 3/4" material and face is of the tube wall, the edge of the 3/4" plate governs?
RE: Shop Weld Oversized
RE: Shop Weld Oversized
RE: Shop Weld Oversized
RE: Shop Weld Oversized
RE: Shop Weld Oversized
RE: Shop Weld Oversized
RE: Shop Weld Oversized
The fabricator (might not be the inspecting/checking the actual welding) says they used fillet welds. Is that even possible? Or did they do a flare bevel weld and then tacked on a fillet weld. I am guessing in that case the fillet weld does nothing and the effective maximum thickness in design would be 5/16R
RE: Shop Weld Oversized
Best regards - Al
RE: Shop Weld Oversized
Fillet weld with a minimum size of 3/16" [allowed 1/16" undersize for no more than 10% of the length]. That 3/16" callout really means "size not less than 3/16", extra acceptable until the weld burns off the edge of the plate". The 'No Burnoff of Edges' is where the (T minus 1/16") requirement came from. Welding is NOT machining. Weld sizes are basically all "Equal to or greater than", not precise sizes.
RE: Shop Weld Oversized
RE: Shop Weld Oversized
RE: Shop Weld Oversized
possibleHighly Probable that the flare will not completely fill the valley in that case."RE: Shop Weld Oversized