62071600 - Bonarc ER308LSi 1/16" (1.6mm) Stainless MIG Wire - 12kg Spool

Technical Overview of Bonarc ER308LSi

The Bonarc ER308LSi is a premium quality solid stainless steel MIG welding wire designed for joining austenitic stainless steels of the 18% Chromium - 8% Nickel type. This specific alloy is formulated with a higher silicon content (indicated by the 'Si' in the classification), which significantly enhances the wetting characteristics of the molten weld pool. The improved fluidity ensures a smoother transition at the weld toes and a flatter bead profile, making it an excellent choice for applications where aesthetic finish and minimal post-weld cleanup are critical.

This wire meets AWS A5.9 specifications for ER308LSi and is suitable for welding AISI grades 301, 302, 304, and 304L. The 'L' designation indicates a low carbon content (maximum 0.03%), which is essential for preventing carbide precipitation and minimizing the risk of intergranular corrosion in the heat-affected zone. The 1.6mm (1/16") diameter is ideal for heavier fabrication tasks requiring higher deposition rates. Packaged in a 12 kg spool, it is designed for industrial use in automated or manual MIG systems.

Typical Chemical Composition:

• Chromium (Cr): ~19.5-22.0%


• Nickel (Ni): ~9.0-11.0%


• Silicon (Si): ~0.65-1.00%


• Carbon (C): <0.03%


• Manganese (Mn): ~1.0-2.5%