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Determination of the threshold stress intensity for stress corrosion cracking (KIscc) of narrow areas such as weld and heat affected zone ( HAZ) of a weldment is a non-trivial task,because of requirements of large specimens in testing by the traditional techniques and difficulty in restricting crack propagation to narrow regions in such specimens.This presentation will describe a successful application of circumferential notch tensile ( CNT) technique in determination of KIscc of narrow regions of weldment such as HAZ.Microstructure of HAZ of manual metal arc welded steel was simulated over a relatively small length of specimens and its KIscc in a hot caustic solution was successfully determined.Inter-granular stress corrosion cacking was confirmed with scanning electron microscope.