Introduction to 030 Flux Core Welding Wire Flux Core Welding Wire Explanation Flux core welding wire is a type of welding wire that is used in flux-cored arc welding (FCAW). FCAW is a semi-automatic or automatic arc welding process that uses a continuously-fed consumable electrode containing a flux and a constant-voltage welding power supply. The … [Read more...] about Comprehensive Guide to 030 Flux Core Welding Wire: Features, Comparisons, and Applications