BT Weld309LSi Stainless Steel MIG Wire is a premium low‑carbon, high silicon welding wire designed for reliable MIG welding of 23 % Cr‑12 % Ni stainless steels and dissimilar metal joints, delivering smooth feedability and robust weld bead quality across all positions.

Key Features:

• Classification AWS A5.9 ER309LSi
• Low carbon stainless steel filler reducing carbide precipitation and intergranular corrosion
• Increased silicon content improving weld pool fluidity and edge wetting
• Precision layer-wound wire for smooth feeding and reliable arc starting
• All-position MIG welding suitable for flat, horizontal, vertical and overhead passes
• Ideal for dissimilar metal welding, overlays and buffer layers between stainless and carbon steels