S655519-002 - Hobart FabCO 125K4 1/16" Flux Core Wire 60lb Coil

Heavy-Duty Welding Solution

Take on the toughest jobs with the Hobart FabCO 125K4, a 1/16-inch flux-cored wire built for high-strength applications. This wire is the go-to choice for welders working with quenched and tempered (Q&T) steels and high-strength low-alloy (HSLA) materials. Packaged in a substantial 60 lb coil, it is designed to keep you welding longer with fewer changeovers, maximizing arc-on time in busy fabrication shops. The FabCO 125K4 excels in delivering X-ray quality welds with the mechanical properties needed for critical structural work.

Superior Toughness and Control

When welding heavy machinery or structural components that face extreme stress, you need a consumable that won't fail. The FabCO 125K4 features a basic slag system that produces a deposit with exceptional ductility and low-temperature toughness. This means the weld can withstand significant impact and stress without cracking. The wire is also designated as H4, indicating very low diffusible hydrogen levels, which is the best defense against cold cracking in high-strength steels. It runs smoothly with 100% CO2 shielding gas, offering a stable arc and excellent bead contour.

Versatile Usage

This wire is versatile enough for both single and multi-pass welding, making it ideal for filling large joints in thick materials. It is widely used in the transportation industry, heavy equipment repair, and industrial machinery fabrication. If you are repairing castings or fabricating components that require an E120T5-K4C class wire, the FabCO 125K4 delivers the high deposition rates and reliable strength you need to get the job done right. Its robust formulation ensures that you can tackle demanding projects with confidence in the integrity of your welds.