62181200 - Bonarc ER316LSi .045 Stainless MIG Wire 15kg Spool

Premium Bonarc ER316LSi Stainless Steel MIG Wire

The Bonarc ER316LSi is a high-quality stainless steel MIG welding wire designed for professionals who demand superior performance and corrosion resistance. This 15kg spool of 0.045-inch wire is formulated with a "High Silicon" (Si) content, which significantly improves the wetting behavior of the molten weld pool. This enhancement allows for a smoother transition of the weld metal, resulting in flatter bead profiles and excellent tie-in at the toes of the weld. It is particularly beneficial for fillet welds and applications where aesthetic finish is critical.

Constructed to meet the rigorous ER316LSi AWS classification, this wire retains all the corrosion-resistant properties of standard 316L grades. The "L" stands for Low Carbon, which is crucial for preventing carbide precipitation during the welding process, thereby maintaining the material's resistance to intergranular corrosion. Additionally, the inclusion of Molybdenum provides superior resistance to pitting and crevice corrosion, making this wire an excellent choice for harsh environments involving chlorides or other aggressive chemicals.

This product is precision layer wound on a standard 15kg spool, ensuring consistent feedability and reducing the risk of tangles or bird-nesting in your wire feeder. It is designed for use with Direct Current Electrode Positive (DCEP) polarity and performs best with Argon/CO2 or Argon/Oxygen shielding gas mixtures. Whether you are fabricating pressure vessels, food processing equipment, or marine components, the Bonarc ER316LSi delivers reliable, high-strength welds with minimal spatter.

Key Technical Benefits

• Enhanced Wetting: High silicon content ensures the weld puddle flows out smoothly, reducing post-weld grinding.


• Corrosion Resistance: Molybdenum and low carbon content protect against harsh chemical and marine environments.


• Versatile Application: Suitable for welding 316, 316L, and can be used for 304 grades where higher corrosion resistance is desired.