ED035606 - Murex ER309LSi .035 Stainless MIG Wire 33lb Spool

Premium Murex ER309LSi Stainless Steel MIG Wire

The Murex ER309LSi .035" MIG Wire is a high-performance stainless steel welding consumable designed for professionals who demand precision and reliability. Packaged in a substantial 33lb spool, this wire is engineered to tackle one of the most common challenges in industrial fabrication: welding dissimilar metals. Whether you are joining stainless steel to mild steel or welding on low-alloy steels, the ER309LSi classification ensures a robust and corrosion-resistant bond.

What sets the Murex ER309LSi apart is its specific chemical composition. The "L" stands for Low Carbon, which is critical for preventing intergranular corrosion and carbide precipitation during the welding process. The "Si" indicates a higher silicon content than standard 309 grades. This elevated silicon level significantly improves the fluidity of the weld pool, allowing for exceptional wetting action at the toes of the weld. The result is a smoother, flatter bead with a professional appearance that requires less post-weld grinding and finishing.

This wire is an excellent choice for general fabrication, automotive exhaust repair, and maintenance applications where stainless steel components must be secured to carbon steel structures. The 33lb spool size is ideal for industrial wire feeders, ensuring long run times and reduced downtime for spool changes. Murex, a brand synonymous with quality under the Lincoln Electric umbrella, guarantees consistent wire diameter and feeding characteristics, minimizing burn-backs and bird-nesting issues.

Key Benefits:

• Superior Wetting: High silicon content ensures the weld metal washes in smoothly.
• Corrosion Resistance: Designed to maintain integrity even in challenging environments.
• Versatility: The go-to wire for joining 304 stainless to carbon steel.