Flux-Cored Arc Welding

Flux-core arc welding (FCAW) is a semi-automatic or automatic arc welding process with a very high production rate. The unique properties of FCAW give it a few advantages over other types of welding. It also contains its own shielding method and does not need an extra gas tank which results in increased mobility.

How Does FCAW Work?

Flux-cored arc welding uses a machine to continuously feed an electrode into the weld joint. It is very similar to MIG welding as both use the filler wire as an electrode for the arc. However, the filler wire in FCAW is hollowed out and filled with flux. Instead of using a shielding gas to protect the weld, the flux itself shields the weld pool and coats the entire weld. This coating also allows the weld to cool more slowly, which creates a more stable weld.

How Fast is Flux-Cored Arc Welding?

Flux-cored arc welding is the most productive of the manual welding processes. An FCAW welder can typically produce about 25 plus pounds of weld per hour. On top of that flux core welding can weld 1/2″ plates in a single pass with full penetration on both sides.

What Can FCAW Weld?

It is ideal for welding dense sections that are an inch or more thick. FCAW has been perfected on most carbon steels, cast iron, nickel-based alloys, and some stainless steels.

Where is FCAW Used?

Flux-core arc welding is primarily used in the shipbuilding industry, but it is also used for pipeline welding, general repairs, manufacturing, and underwater welding.

We’re FCAW Experts.

At Industrial Alloy Fabrication, FCAW is just one of the many welding skills and Section IX certifications that our skilled crew of workers holds. Contact us to find out how this welding process can be used during the fabrication of your next product.