Hyundai S-309.16N description: S-309.16N is a lime-titania type electrode. As weld metal contains ferrite in austenitic structure, its crack resistibility is good. Furthermore, its heat and corrosion resistibility are also good because of much inclusion of alloying elements. Therefore, it is suitable for welding such dissimilar metal as carbon steel to stainless steel, as well as 22%Cr-12%Ni stainless steel.