Fully austenitic welding rod for GTA (TIG) welding of heat resisting steels containing approximatelly 25% chromium and 20% nickel which are used in heat treatment and industrial furnaces and equipments, like cement and steel industries. Also suited for welding heat resisting and non-scaling ferritic chromium steels, provided that corrosion attack by reducing sulphur bearing combustion gases is not to be expected. Non-scaling up to 1200°C. Weld metal exhibits good toughness values down to -196°C.