S119844-035 - Hobart 18AC E7018 1/8" Stick Electrode 50lb Can

Hobart 18AC Stick Electrode: Optimized for AC Power Sources

The Hobart 18AC is a premium quality carbon steel electrode specifically engineered to overcome the common challenges associated with welding E7018 on alternating current (AC) power sources. While standard low-hydrogen electrodes often suffer from arc instability and frequent outages when used with AC machines—particularly those with low open-circuit voltage (OCV)—the 18AC formulation ensures a smooth, consistent arc. This makes it the preferred choice for fabricators and maintenance professionals who rely on utility-grade AC welders but demand the mechanical properties and code-quality assurance of an E7018 electrode.

Classified as AWS E7018 H8, this electrode features an iron powder coating that facilitates higher deposition rates while maintaining a controlled, fluid puddle. The specialized coating chemistry significantly improves arc initiation and re-striking, addressing one of the primary frustrations in stick welding: the "sticking" rod. This characteristic makes the Hobart 18AC exceptionally well-suited for applications requiring frequent starts and stops, such as skip welding, tack welding, and short-run fabrication tasks. The electrode operates effectively in all positions, including flat, horizontal, vertical, and overhead, providing versatility across complex structural assemblies.

Beyond its arc performance, the Hobart 18AC delivers a weld deposit with excellent mechanical integrity. It is designed for joining low, medium, and high-carbon steels, offering robust tensile strength and ductility. The slag system is formulated for easy removal, often peeling away with minimal effort, which reduces post-weld cleaning time and improves overall productivity. Whether used in a heavy industrial shop or for on-site maintenance where power supply options are limited, the Hobart 18AC provides a reliable, high-quality solution for structural welding.