S618 - ER70S-6 Mild Steel TIG Rod 1/8" (3.2mm) - 10lb Tube

Premium ER70S-6 Mild Steel TIG Rods for Industrial Fabrication

The ER70S-6 Mild Steel TIG Welding Rod (3.2mm / 1/8") is a staple consumable for any professional fabrication shop or industrial maintenance department. Sourced to meet rigorous industry standards, this filler metal is designed for the Gas Tungsten Arc Welding (GTAW) process on carbon and mild steels. The "S6" classification indicates a higher content of silicon and manganese compared to standard S2 or S3 wires. This chemical composition acts as a powerful deoxidizer, allowing the welder to produce sound, porosity-free welds even when the base material has minor surface contaminants like rust, mill scale, or oil. This makes it an incredibly versatile choice for general repairs, structural steel fabrication, and pipe welding where perfect surface preparation isn't always feasible.

Packaged in a durable 10lb tube, these 36-inch cut lengths are copper-coated to ensure long shelf life and consistent electrical conductivity during the weld. The copper coating protects the steel from oxidation during storage, ensuring that every rod is fresh and ready to use when you pull it from the tube. At Josef Gas, we understand that consistency is key to productivity. That is why our ER70S-6 rods are selected for their uniform diameter and consistent chemistry, batch after batch. Whether you are welding pressure vessels, automotive components, or performing root passes on heavy-wall pipe, this rod delivers the reliability professional welders demand.

This 3.2mm (1/8") diameter is ideal for welding thicker sections of mild steel, typically ranging from 1/8" up to 1/2" thick or more with multi-pass techniques. It provides a higher deposition rate than smaller diameters, allowing for faster travel speeds and increased productivity on heavy fabrication jobs. The rod flows smoothly, creating a flat to slightly convex bead profile that ties in well at the toes, reducing the need for post-weld grinding. Trust Josef Gas for your filler metal needs; we provide the quality consumables that keep your production line moving.