Sandvik 19.12.3.L for joining stainless Cr-Ni-Mo and Cr-Ni steels, stabilised or non-stabilised, e.g. 316, 316L and 316Ti as well as 304, 304L, 321 and 347, for service temperatures up to 400 oC, stainless Cr-steels with max 19 % Cr. It is used for MIG/MAG-, TIG-, plasma-arc and submerged-arc welding. Sandvik 19.12.3L has good resistance to general corrosion and due to its low carbon content, good resistance to intercrystalline corrosion. It also has good resistance to pitting corrosion due to the balanced molybdenum content. Example: Pitting corrosion test. Three days in 1% FeCl3 at 20 deg C, no corrosion observed. The parameters for TIG welding depend largely upon the base metal thickness and the welding application. Electrode negative and an inert gas of argon or helium should be used to prevent oxidation of the weld metal.