The Effect of PWHT on Intergranular Corrosion in 308 & 347 Stainless Steels

Byungchul Kim (Hyundai Heavy Industries) discusses how post-weld heat treatment (PWHT) affects intergranular corrosion in stainless steel weldments. This presentation focuses on 308 and 347 stainless steels, widely used throughout the petrochemical industry as filler metal for weld cladding in hydrotreatment and hydrodesulphurization reactors.