E7018 Welding Electrodes for Strong, Reliable Welds E7018 welding electrodes are a trusted choice for structural welding, carbon steel fabrication, and heavy equipment repair. They are designed to produce strong, clean welds with good arc characteristics and low-hydrogen performance, making them well suited for demanding welding and repair applications. At Harrigan Mobile Welding, we choose the appropriate welding electrode and process based on the material, application, and