S119832-035 - Hobart 18AC E7018 Welding Rods 3/32 Inch 50lb Can

Hobart 18AC E7018 Welding Rods: The Solution for AC Power Sources

Welders often face a dilemma when using standard low-hydrogen electrodes on AC power sources: arc instability, sticking, and difficult starts. The Hobart 18AC 3/32" Welding Rod is engineered specifically to solve these problems, providing a smooth, stable, and forgiving arc on Alternating Current. This E7018 electrode features a specially formulated iron powder coating that assists in ionization, ensuring that the arc remains established even as the current alternates polarity. This makes it the ideal choice for users of 225-amp AC stick welders found in many home garages, farm shops, and light industrial facilities.

This 50lb can provides a substantial supply of consumables for larger projects or busy repair shops. The 3/32-inch diameter is perfect for a wide range of material thicknesses, offering a manageable deposition rate that helps prevent burn-through on lighter sections while still providing adequate fill for V-groove joints. The rod produces a flat to slightly convex bead with distinct ripple patterns and excellent tie-in at the toes of the weld. Spatter levels are kept low, which is a significant advantage when welding in position or on parts that require painting or finishing immediately after welding.

One of the standout features of the Hobart 18AC is its suitability for skip and tack welds. In fabrication, tacking is a critical step, and a rod that sticks or fails to ignite instantly can lead to frustration and poor fit-up. The 18AC strikes easily and restrikes without the need for excessive peening of the tip, making it highly efficient for assembly work. Furthermore, because it is a low-hydrogen electrode, it deposits weld metal with superior ductility and impact toughness, making it suitable for dynamically loaded structures and cold-weather applications where standard rutile rods (like 6013) might fail.

Applications for the Hobart 18AC are extensive. It is widely used in the construction of trailer frames, machine bases, storage tanks, and heavy equipment repairs. It works effectively on low-carbon, medium-carbon, and high-carbon steels, as well as low-alloy structural steels. While it excels on AC, it retains full compatibility with DCEN and DCEP, allowing professional welders to use it across different machines in their fleet. For best results, store the open can in a rod oven to maintain its low-hydrogen status, or use a portable rod guard for daily use in the field.