Experimental Investigation of Corten A588 Filler Rod for Welding Weathering Steel

Abstract This analysis lays emphasis on finding a suitable substitute filler rod for welding weathering steel, such as to eliminate the risk of corrosion. The commonly used filler rod for welding weathering steel is ER70S-6 which is not immune to atmospheric corrosion under wetter conditions and in the presence of stagnant water. Under wetter conditions the ER70S-6 develops more rust by the formation of non-protective rust layers. For the improvement of mechanical, metallurgical and corrosion properties of the weld the parent metal is used as the filler material for welding the weathering steel. The filler wires are cut from the parent material as strips of wire sized 1.2mm. The welded joints are made between two weathering steel of dimensions 150 x150mm with a gap of 3mm between the plates. The Shielding gas used for GTAW welding of weathering steel is 100% Argon. The welds are then cut accordingly for tensile and impact testing using water jet cutting process. The test reviled the best suitable substitute filler rod for the commonly used ER70S-6.The findings are complied according to the mechanical properties found in the welds.