The cyclic high temperature corrosion studies on bimetallic compound of Inconel 625 and stainless steel 316L were investigated in the present study. Investigations have been carried out by subjecting this bimetallic compound under air oxidation and K2SO4 + 60% NaCl aggressive environmental conditions at 650 °C. The corrosion kinetics has been established by thermo-gravimetric technique. In this work, Scanning Electron Microscopy/Energy-Dispersive X-ray Spectroscopy analysis (SEM/EDS) was used to characterise the hot corroded samples. The results showed that the corrosion resistance of bimetal interface was found to be less, in molten salt environment. In addition, the SEM/EDS results witnessed changes in reaction rate associated with formation of a laminated and inner-oxide layer which contains both fine and coarse grain spinel oxide.