S116344-035 - Hobart 718 E7018 1/8-Inch Stick Welding Electrodes (50lb Can)

Technical Overview of Hobart 718 E7018 Electrodes

The Hobart 718 is a premium quality, low hydrogen, iron powder type electrode designed for the Shielded Metal Arc Welding (SMAW) process. Classified as AWS E7018 H4R, this electrode is engineered to provide welds with excellent mechanical properties, specifically high tensile strength and superior impact resistance at low temperatures. The 1/8-inch (3.2mm) diameter is a versatile size, suitable for a wide range of material thicknesses in structural fabrication, pressure vessel construction, and heavy equipment repair. The electrode features a moisture-resistant coating that helps maintain low hydrogen levels in the weld deposit, minimizing the risk of hydrogen-induced cracking, which is critical for welding hardenable steels.

Operable on both AC and DCEP (Direct Current Electrode Positive), the Hobart 718 offers flexibility in power source selection. The iron powder addition to the coating improves the deposition rate compared to non-iron powder electrodes, enhancing travel speeds and overall productivity. The arc characteristics are smooth and stable, with medium penetration, making it controllable in all welding positions—flat, horizontal, vertical, and overhead. The slag system is designed for easy removal, often detaching in large pieces, which reduces post-weld cleaning time and the likelihood of slag inclusions in multi-pass welds.

This product is supplied in a 50-pound hermetically sealed can, which protects the electrodes from atmospheric moisture absorption during storage and transport. Proper storage and handling are essential for E7018 electrodes; once the can is opened, electrodes should be stored in a holding oven to maintain their low hydrogen status. The Hobart 718 is an ideal choice for applications requiring X-ray quality welds and adherence to strict welding codes such as AWS D1.1 Structural Welding Code - Steel.