63063200 - Bonarc ER308L Stainless TIG Filler Rod 3.2mm - 5kg Tube

Premium Bonarc ER308L Stainless Steel TIG Rods (3.2mm)

The Bonarc ER308L TIG Rod is a high-performance austenitic stainless steel filler metal designed for critical welding applications requiring superior corrosion resistance and mechanical integrity. This 3.2mm (1/8") diameter rod is specifically engineered for joining 18% Chromium - 8% Nickel base metals, including AISI 301, 302, 304, 305, and 308. The "L" designation indicates an extra-low carbon content (maximum 0.03%), which is crucial for preventing carbide precipitation during the welding process. This feature significantly reduces the risk of intergranular corrosion, making this rod an excellent choice for structures and components that will not undergo post-weld heat treatment.

Manufactured to meet stringent AWS A5.9 specifications, Bonarc ER308L ensures consistent chemistry and physical properties across every batch. The 3.2mm diameter provides the necessary deposition rate for welding thicker sections of stainless steel plate, structural supports, and heavy-wall piping. It is widely utilized in industries such as chemical processing, food and beverage manufacturing, and pharmaceutical equipment fabrication where sanitary and corrosion-resistant welds are mandatory. The rod exhibits excellent toughness at cryogenic temperatures, further expanding its application range to include low-temperature service environments.

Welders using the Bonarc ER308L will appreciate the controlled silicon content, which enhances the fluidity of the weld pool (wetting action) and promotes a flat, smooth bead profile with minimal need for post-weld grinding. The rod is designed for use with 100% Argon shielding gas on DCEN (Direct Current Electrode Negative) polarity, providing a stable arc and deep penetration. Packaged in a durable 5kg tube, these 1000mm cut lengths are protected from moisture and contamination, ensuring they arrive ready for high-quality fabrication tasks. Whether for maintenance repair operations (MRO) or new construction, Bonarc ER308L delivers the reliability professional fabricators demand.