Flux-Cored Arc Welding (FCAW) is a semi-automatic or automatic arc welding process that uses a continuously fed, consumable tubular electrode containing flux. It requires a constant-voltage or less commonly, a constant-current welding power supply. An externally supplied shielding gas is sometimes used, but often the flux itself generates necessary protection from the atmosphere.

Advantages:

• Yields high-quality, consistent welds with fewer defects
• High deposition rate
• Can be used in all positions with the right filler metal
• Relatively easy to learn compared to other welding processes
• Allows for high welding productivity

Limitations:

• A high level of noxious fumes that must be ventilated
• Higher electrode wire cost compared to solid electrode wires
• More costly equipment than many other welding processes
• Less portable equipment than SMAW or GTAW
• The slag covering the weld must be removed

Electrodes:

MATERIAL	TYPICAL ELECTRODE
CS/MS	E71T-1C
SS	E308LT1-1
CS#SS	E309LT0-1
CS#C276 (HASTELLOY)	ERNiCrMo-4

Equipment Cost: Relatively Costly

Welding Speed: More than SMAW