Flux-cored welding wire and metal-cored welding wire offer different benefits and are used in different applications. The main differences between the two that will determine whether you choose one over the other include their composition, the use of shielding gas, their deposition rate, weld quality, welding positions available, and welded material thickness.
Flux-cored welding wire's composition is fundamentally different from metal-cored wire. Flux-cored wire contains a flux compound that provides shielding and helps to remove impurities from the weld, while metal-cored welding wire contains a core of metal powder that provides weld metal deposit alloying and helps to improve the quality of the weld. Though neither has a solid core, they function uniquely from each other.
Another major difference between the two wire types is that flux-cored welding wire has a lower deposition rate when factoring in flux removal, than metal-cored wire, meaning that metal-cored welding wire will be more efficient to use while offering great control (application dependent). Flux-cored wire, however, remains more efficient than solid wire. Despite being less efficient than metal-cored wire overall, flux-cored wire offers superior penetration, though metal-cored wire often produces a smoother bead appearance.
One of the most important deciding factors, however, is welding position; flux-cored welding wire offers the benefit of versatility regarding welding position and can be used vertically and overhead. Metal-cored welding wire requires flat and horizontal positions. The thickness of the material being welded also plays a role, as flux-cored wire’s superior penetration means that it is far better suited to welding thicker materials.
Overall, flux-cored wire is best for varied welding jobs that require welding position versatility, especially in outdoor environments. Flux-cored wire’s versatility lends itself well to both semi-automatic and fully automated welding. Metal-cored wire boasts less slag and easier cleanup, making it more efficient with greater control, but it is fixed to flat or horizontal positions. This makes the wire popular for semi-automatic welding.
NS ARC Tru-Core® FC wire offers several benefits that set it apart from many other types of welding wire. These unique features and qualities make it a superior choice in certain applications. Some of the most prominent benefits include:
Overall, utilizing flux-cored welding wire like NS ARC Tru-Core® FC Welding Wire is an excellent way to achieve high-quality welds with increased versatility, efficiency, and performance.