Oerlikon Inertrod 308LSi description: INERTROD 308LSi is a W 19 9 LSi/ER 308LSi type solid TIG welding rod depositing a low C-19Cr 9 Ni weld metal. Suitable for use mainly with Ar shielding gas. INERTROD 308LSi is used for welding of 304 and 304L grade stainless steel. The weld metal has good corrosion resistance properties, including intergranular attack from a range of liquid media at service temperature <300C. It is used for a wide range of applications including pipework and plate fabrication, vessel production etc. Low carbon reduces the possibility to intergranular carbide precipitation, which increases the resistance to intergranular corrosion without the use of stabilizers. The increased silicon promotes weld pool fluidity and a smoother weld deposit appearance.