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The United Affiliation of Plumbers and Pipefitters (UA) identifies their customary pipe welding checks with the letters UA, a touch, after which a quantity. Like UA-1, UA-2, and so on.
There’s a checklist accessible that goes all the best way to UA-92. That doesn’t imply there are solely 92 checks ever given. There are lots of extra prospects however the Pipe fitters Union (UA) needed to go all the best way to # 92 to determine the most typical pipe checks. Nevertheless, this does function sort of an instance to what number of prospects exist for pipe welding certification checks.
With 4 totally different welding processes used for pipe welding (Fuel Metallic Arc / GMAW, Flux Core Arc / FCAW, Shielded Metallic Arc / SMAW, and Fuel Tungsten Arc / GTAW) and several other totally different metallic teams being welded (like carbon metal, stainless-steel, and even aluminum), its no surprise so many alternative pipe welding certification checks are required to certify welders for the scope of labor being finished on a job or job web site.
ASME Part IX is a generally referred to doc in pipe welding used to find out welder certification necessities in addition to qualification limitations.
A few of the frequent limitations are thickness, place, and diameter of pipe.
For instance a welder passing a tig welding certification check on 2 inch schedule 80 pipe in a 6G place is certified to weld 1 inch and higher diameter pipe, as much as 436″ thick and in all positions.
However a welder passing a check on 6″ schedule 40 in a 6G place is certified to weld in all positions however solely as much as.560″ thick and solely right down to 2.875″ pipe diameter.
In case you are studying this and are surprise what rectal database they pulled these numbers from, I’m with you on that. Its appears sort of foolish that upon getting.560″ of filler metallic deposited, that you’re not certified to place extra.
I’m simply saying.
