The present study centered on the effect of welding induced metallurgical changes on the mechanical properties and corrosion behavior of super duplex stainless steel (SDSS) weldments. The weld joints dealt with in the study has been fabricated through use of filler metal ER 2594 using gas tungsten arc welding process. Microstructural investigation in the weldment exhibited the evolution of austenite (gamma) phases in different morphologies such as grain boundary austenite, needle like elongated austenite (Widmanstätten structure) and intragranular austenite particles. Mechanical properties of the weldments were obtained and compared with the parent metal behavior by conducting Vicker's micro hardness assessment, Charpy impact toughness investigation, tensile and three-point bend experiment. Cyclic polarization curves revealed higher corrosion resistance for the weldment than the parent metal in NaCl corrosion medium. Nickel enriched filler ER 2594 led to the nucleation of additional gamma phases in the fusion zone which are electrochemically more resistant than the delta ferrite phases. Moreover, accelerated stress corrosion cracking (SCC) test proved the SCC resistance of both parent metal and weld regions by protecting the surface without nucleation of any kind of fissures or cracks. © 2018 IOP Publishing Ltd.