In this present investigation, a comparative analysis is made to examine the microstructure and mechanical properties of Gas Tungsten Arc (GTA), Pulsed Current Gas Tungsten Arc (PCGTA) welded dissimilar ferritic stainless steel (AISI 430) and austenitic stainless steel (AISI 304) using E309L filler material. Tensile tests on the dissimilar weldments reveal that the fracture occurred at the parent side of AISI 430. Hardness measurements showed that PCGTA weldments show higher hardness values as compared to the GTA weldments. Cyclic hot corrosion studies were conducted on the various zones of the GTA and PCGTA weldments at 600 °C in the aggressive molten salt environment containing Na2SO4 -60% V2O5. The hot corrosion products were investigated using the combined techniques of SEM/EDAX analysis. © 2013 University of Manchester and the authors.