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When you are TIG welding mild steel and need a bead that wets out perfectly while fighting off pinholes, Hobart's ER70S-2 is the rod to reach for. Known in the field simply as "70S-2," this 1/8" filler rod is a workhorse for pipe welders and fabricators dealing with real-world steel conditions. Unlike standard S-6 wire, the S-2 formula is packed with extra deoxidizers that act like cleaning agents in your puddle, floating out impurities before they can trap gas and ruin your weld.
Why Choose Hobart ER70S-2?
If you are welding root passes on pipe or fabricating structural frames where x-ray quality is mandatory, this rod delivers. The 1/8" diameter allows for higher amperage welding and faster deposition rates on thicker materials (typically 1/8" to 1/4" base metal and up). You will notice a fluid puddle that is easy to manipulate, allowing for that stack-of-dimes appearance that professional TIG welders strive for.
These 36-inch cut lengths are straight and stiff, feeding smoothly through your gloved hand without the flimsiness of thinner wires. Whether you are in the shop or out on a rig, keeping a tube of Hobart 70S-2 handy ensures you are ready for high-strength carbon steel repairs.
| Additional Information |
|---|
| Brand:Hobart |
| Diameter:3.2mm (1/8") |
| AWS Spec:ER70S-2 |
| Weld Process:TIG (GTAW) |
| Polarity:DCEN |
| Packaging Description:1lb tube |
| Length:36 in |
| Material:Carbon Steel |
| Alloy Type:Triple Deoxidized Steel |
| Tensile Strength:70,000 PSI (min) |
