E70S250 - Harris ER70S-2 Carbon Steel TIG Welding Rod - 3/32 in x 36 in - 10 lb Tube

Premium Metallurgy for Critical Carbon Steel Applications

The Harris ER70S-2 Carbon Steel TIG Welding Rod is a high-specification filler metal designed for the rigorous demands of industrial pipe and structural fabrication. Engineered as a triple-deoxidized alloy, this rod contains precise additions of Aluminum, Titanium, and Zirconium (in addition to Manganese and Silicon). This complex deoxidation system makes the ER70S-2 exceptionally capable of suppressing porosity and defects when welding over rimmed, capped, or semi-killed steels that may contain higher levels of oxygen or surface contaminants.

With a tensile strength of 78,000 psi and a yield strength of 60,000 psi, this consumable meets and exceeds AWS A5.18 standards. It is the preferred choice for critical applications requiring X-ray quality welds, particularly in root pass pipe welding where defect-free fusion is paramount. The rod exhibits excellent fluidity and wetting characteristics, allowing for smooth tie-ins and consistent bead profiles across all welding positions. Its chemical composition is strictly controlled to ensure mechanical properties that remain consistent from batch to batch, providing reliability for code-work and pressure vessel fabrication.

The 3/32-inch diameter offers versatility for a wide range of material thicknesses, from thin sheet metal to heavy-wall tubing. The cut lengths are 36 inches, standard for manual GTAW applications, and packaged in a durable 10 lb tube to protect against moisture and atmospheric contamination. By utilizing DCSP (Direct Current Straight Polarity), operators can achieve deep penetration and precise heat input control, maximizing the metallurgical benefits of the triple-deoxidized chemistry.