62070309 - Bonarc ER308LSi .035 Stainless MIG Wire 300kg Drum

High-Volume Stainless Steel Welding Solution

The Bonarc ER308LSi MIG Welding Wire is a premium consumable designed for the rigorous demands of industrial fabrication. This specific variant features a 0.035-inch diameter and is supplied in a substantial 300kg drum, making it the ideal choice for automated welding cells, robotic arms, and high-volume manual welding stations where minimizing downtime for spool changes is critical to operational efficiency.

Formulated with a High Silicon (HiSi) content, this wire offers distinct metallurgical advantages over standard 308L wires. The increased silicon improves the fluidity of the molten weld pool, resulting in exceptional wetting action. This allows for smoother transitions at the weld toes and a flatter, more aesthetically pleasing bead profile. For industries where cosmetic appearance is as important as structural integrity—such as food processing equipment manufacturing or architectural stainless fabrication—the improved wash-in provided by the HiSi chemistry is invaluable.

Metallurgically, the "L" designation indicates a low carbon content (maximum 0.03%), which is essential for preventing carbide precipitation during the welding process. This resistance to sensitization ensures that the weldment retains its corrosion resistance, particularly against intergranular corrosion, which is a common failure mode in standard stainless steels exposed to harsh environments. This wire is specifically engineered for joining 18% Chromium - 8% Nickel austenitic stainless steels, including AISI grades 301, 302, 304, and 304L.

The 300kg drum packaging is designed to facilitate continuous feeding. When paired with appropriate conduit and payoff equipment, the wire feeds smoothly with consistent cast and helix properties, reducing the risk of burn-backs and contact tip wear. This reliability is paramount in automated settings where intervention must be minimized. Whether used with Argon/CO2 blends or other shielding gas mixes, Bonarc ER308LSi delivers consistent, high-quality results.