The Hobart ER70S-2 is a premium quality carbon steel welding rod designed specifically for the Gas Tungsten Arc Welding (GTAW) process. This 3\/32-inch diameter filler metal is engineered with a triple-deoxidized chemistry containing Zirconium, Titanium, and Aluminum, in addition to the standard Silicon and Manganese found in other mild steel rods. This unique chemical composition makes the ER70S-2 exceptionally capable of producing defect-free, X-ray quality welds even when working with base metals that are not perfectly clean. It effectively combats porosity caused by rust, mill scale, and oil, making it a preferred choice for critical pipe welding and structural applications where weld integrity is paramount.<\/p>\n
Hobart’s manufacturing process ensures that each 36-inch rod is consistent in diameter and chemical composition, providing the welder with predictable performance and excellent bead aesthetics. The rod exhibits superb wetting action, allowing the puddle to flow smoothly and tie into the toes of the weld with ease. This fluidity helps reduce the risk of lack of fusion and ensures a flat, smooth weld profile that requires minimal post-weld grinding or cleanup. The 1 lb tube packaging is ideal for maintenance and repair operations, small fabrication shops, or hobbyists who require high-quality filler metal without the bulk of larger industrial cartons.<\/p>\n
Industrially, this rod is a staple in the petrochemical, power generation, and general fabrication sectors. It is particularly well-suited for root pass welding on carbon steel pipes, where its deoxidizing properties help maintain a sound deposit despite the potential presence of contaminants. Whether you are welding pressure vessels, automotive frames, or general structural steel, the Hobart ER70S-2 delivers the mechanical properties and reliability demanded by professional welding codes and standards.<\/p>\n