161024R150 - ESAB OK Tigrod 308L 2.5mm Stainless TIG Filler Rod - 5kg

Precision TIG Welding: ESAB OK ER308L 2.5mm Rods

Elevate your TIG welding results with the ESAB OK Tigrod 308L, a high-quality bare corrosion-resisting chromium-nickel welding rod designed for the GTAW process. This 2.5mm filler metal is the industry standard for welding austenitic stainless steels such as 304, 304L, 321, and 347 (at moderate temperatures). Welders appreciate the ESAB OK series for its superior arc stability and clean puddle control, which are essential when executing high-visibility or X-ray quality welds. The rod produces a smooth, bright bead that blends seamlessly with the base material, ensuring both aesthetic appeal and mechanical strength.

Technically, the ER308L classification indicates a chemical composition that includes approximately 20% chromium and 10% nickel. This alloy balance provides excellent resistance to general corrosion and oxidation. The extra-low carbon content is the defining feature of this consumable, virtually eliminating the risk of sensitization in the heat-affected zone (HAZ). This makes it the preferred choice for applications where the weldment will not be annealed after welding. Additionally, the rod's chemistry is balanced to provide a small amount of ferrite in the austenitic matrix, which significantly reduces susceptibility to hot cracking—a common challenge when welding fully austenitic stainless steels.

The 2.5mm (approx. 3/32") diameter is a workhorse size in the TIG welding world. It is substantial enough to carry the amperage needed for root passes on pipe or fill passes on plate, yet manageable enough for out-of-position work. The rods are stamped for easy identification, ensuring you never mix up your filler metals in a busy shop environment. With ESAB's rigorous manufacturing quality control, you can expect consistent diameter tolerance and surface cleanliness, free from drawing lubricants or contaminants that could cause porosity.

Technical Advantages

• Superior Wetting: High silicon content aids in puddle fluidity and tie-in at the toes of the weld.
• Crack Resistance: Ferrite number control helps prevent hot cracking during solidification.
• Low Carbon: Max 0.03% C content protects against intergranular corrosion.
• Wide Operating Range: Performs exceptionally well with DCEN polarity and 100% Argon shielding gas.