OK Autrod 309LSi is a solid stainless steel MIG welding wire with a low carbon and increased silicon content, designed for welding dissimilar steel joints and stainless steel grades of the 23% Cr / 13% Ni type. The increased silicon content improves welding properties, ensures excellent wetting and produces a smooth weld appearance. The wire is also suitable as a buffer layer when welding unalloyed or low-alloy steel prior to applying a stainless steel top coat.
OK Autrod 309LSi is used for welding stainless steel to unalloyed or low-alloy steel, for buffer layers prior to build-up welding, and for applications requiring a corrosion-resistant welded joint with good mechanical properties.