163040R150 - ESAB OK Tigrod 316L Stainless Steel TIG Welding Rod - 4.0mm (5kg Tube)

High-Performance Stainless Steel TIG Filler Metal

The ESAB OK Tigrod 316L is a premium quality, bare, corrosion-resistant chromium-nickel-molybdenum welding rod designed for the Gas Tungsten Arc Welding (GTAW/TIG) of austenitic stainless alloys. Specifically formulated to meet the AWS ER316L classification, this 4.0mm diameter rod is engineered for joining stainless steels of the 18% Cr / 12% Ni / 2.5% Mo type. The inclusion of molybdenum in the alloy matrix provides enhanced resistance to pitting and crevice corrosion, particularly in halide-containing environments, making it a superior choice over standard 308L fillers for aggressive conditions.

One of the critical technical advantages of the OK Tigrod 316L is its extra-low carbon content. By maintaining carbon levels below 0.03%, the filler metal significantly mitigates the risk of carbide precipitation at the grain boundaries during the thermal cycle of welding. This characteristic is vital for preventing intergranular corrosion, ensuring the longevity and structural integrity of the weldment even without post-weld heat treatment. The rod exhibits excellent general corrosion resistance and is also suitable for welding stabilized stainless steels of similar composition, except when the full creep resistance of the base metal is required at elevated temperatures.

Operational characteristics of the ESAB OK Tigrod 316L are optimized for professional industrial use. The rod provides excellent wetting action, allowing for smooth puddle control and a clean, aesthetically pleasing bead profile. The 4.0mm diameter is particularly well-suited for filling wider gaps or welding thicker sections where higher deposition rates are necessary. It is widely utilized in the chemical, petrochemical, and food processing industries where material purity and corrosion resistance are paramount.

Technical Specifications:

• Classification: AWS A5.9 ER316L
• Alloy Type: Austenitic Cr-Ni-Mo (Low Carbon)
• Diameter: 4.0mm
• Shielding Gas: I1 (100% Argon)
• Ferrite Content: FN 3-10