S422081-035 - Hobart 418 E7018-1 6.0mm Stick Electrode 50lb Can

Technical Overview of Hobart 418 E7018-1 Electrodes

The Hobart 418 is a premium quality, low hydrogen, iron powder electrode designed for Shielded Metal Arc Welding (SMAW) of carbon and low-alloy steels. Classified as AWS E7018-1, this electrode is engineered to provide excellent mechanical properties, particularly impact toughness at low temperatures, meeting Charpy V-Notch requirements down to -45°C (-50°F). The 6.0mm diameter configuration is specifically intended for high-deposition applications on heavy sections where fill rate and penetration are critical.

Formulated with a moisture-resistant coating, the Hobart 418 minimizes the risk of hydrogen-induced cracking, making it an ideal choice for welding restrained joints, pressure vessels, and critical structural components. The iron powder addition in the coating enhances deposition efficiency, allowing for faster travel speeds and increased productivity compared to non-iron powder equivalents. The electrode operates effectively on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC), providing versatility across different power sources.

Metallurgically, the weld deposit offers a minimum tensile strength of 70,000 psi and a minimum yield strength of 58,000 psi. The slag system is designed to be easily detachable, reducing post-weld cleanup time and the risk of slag inclusions in multi-pass welds. This product is supplied in a 50lb hermetically sealed can, ensuring the electrodes remain dry and ready for use in code-quality applications without immediate re-baking, provided the seal is intact.

Industrial Applications

This electrode is widely utilized in industries requiring robust structural integrity, including shipbuilding, bridge construction, heavy equipment manufacturing, and petrochemical infrastructure. Its ability to produce X-ray quality welds makes it a standard specification for critical fabrication tasks involving ASTM A36, A572, and similar structural steels.