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A: I would like to answer your question as a general discussion of flux-cored welding. The American Welding Society (AWS) classifies all tubular electrodes having a flux on the inside as flux-cored wires, and calls it the Flux Cored Arc Welding (FCAW) process. All flux-cored wires have some similar characteristics. These include forming a protective slag over the weld, use a drag angle technique, have the ability to weld out-of-position or flat and horizontal only at higher deposition rates (depending on type of wire), ability to handle contaminants on the plate, etc.
Flux-Cored Welding. 1  Works as well as Stick on dirty or rusty material. 2  Out-of-position welding. 3  Deep penetration for welding thick sections. 4  Increased metal deposition rate. 5  More forgiving when welding on dirty or rusty metal.