ER309LSI is suitable for joining stainless steels of the 304 type and 347 types. The higher silicon content gives arc stability and exceptionally smooth bead appearance. ER309L-Si Welding Wire has similar usage as ER309L Wire, but the 0.65-1 per cent silicon content improves wash and wetting behaviour as well as bead appearance in the gas shielded welding processes. The low carbon reduces carbide precipitation of the SS ER309LSi Welding Wire while the increased silicon content provides better arc with smoother bead and improved washing or wetting behaviour of the weld metal as compared with ER 309L or ER 309 Wire.
SS ER309LHiSil Filler Wire is widely used for welding dissimilar materials such as mild steel to stainless steel, as well as for a barrier layer in stainless steel. SS ER309LSi Welding Wire has high silicon content for increased puddle fluidity and toe wetting and controlled amount of ferrite content for maximum corrosion resistance. ER309L Wire is used to weld heat-re