S116351-035 - Hobart 718 E7018 Stick Electrode 5/32" 50lb Can

Technical Overview: Hobart 718 E7018 Electrode

The Hobart 718 is a premium quality, low hydrogen, iron powder type electrode designed for the Shielded Metal Arc Welding (SMAW) process. Conforming to AWS A5.1 specifications with the classification E7018 H4R, this electrode is engineered to produce X-ray quality welds with excellent mechanical properties. The 5/32-inch (4.0 mm) diameter is optimized for medium-to-heavy plate fabrication, offering a current range of approximately 130 to 210 Amps.

The coating formulation includes a significant percentage of iron powder, which enhances the deposition efficiency and stabilizes the arc. This results in a smooth metal transfer and reduced spatter levels compared to standard E7018 electrodes. The "H4R" designation indicates that the electrode is moisture-resistant, maintaining low diffusible hydrogen levels (less than 4ml/100g) even after exposure to humid environments for limited periods, reducing the susceptibility to hydrogen-induced cracking (cold cracking) in the heat-affected zone.

Packaged in a 50 lb hermetically sealed can, the electrodes are protected from atmospheric moisture during storage and transport. This packaging ensures that the product arrives in optimal condition for immediate use in critical applications such as pressure vessels, structural steel erection, and heavy equipment repair. The Hobart 718 operates effectively on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC), providing versatility across different power sources.