ev3v4hnThe United Association of Plumbers and Pipefitters (UA) identifies their conventional pipe welding assessments with the letters UA, a sprint, and then a selection. Like UA-1, UA-2, and many others.
There is a listing available that goes all the way to UA-92. That does not necessarily mean there are only 92 assessments at any time given. There are a lot of far more opportunities but the Pipe fitters Union (UA) had to go all the way to # 92 to establish the most prevalent pipe tests. However, this does serve as sort of an case in point to how quite a few options exist for pipe welding certification checks.
With 4 unique welding processes used for pipe welding (Gas Metallic Arc / GMAW, Flux Core Arc / FCAW, Shielded Metal Arc / SMAW, and Fuel Tungsten Arc / GTAW) and quite a few distinctive metal groups getting welded (like carbon metal, stainless metal, and even aluminum), its no surprise so several distinctive pipe welding certification exams are expected to certify welders for the scope of work getting completed on a task or position site.
ASME Part IX is a generally referred to document in pipe welding employed to determine welder certification specifications as perfectly as qualification limitations.
Some of the frequent restrictions are thickness, situation, and diameter of pipe.
For instance a welder passing a tig welding certification test on 2 inch routine 80 pipe in a 6G placement is qualified to weld 1 inch and bigger diameter pipe, up to 436″ thick and in all positions.
But a welder passing a take a look at on 6″ routine 40 in a 6G position is competent to weld in all positions but only up to.560″ thick and only down to 2.875″ pipe diameter.
If you are reading through this and are speculate what rectal databases they pulled these quantities from, I am with you on that. Its appears to be sort of silly that at the time you have.560″ of filler metal deposited, that you are not qualified to put extra.
I am just declaring.
