Corrosion affects our society on a daily basis, causing degradation and damage to household appliances, automobiles, airplanes, highway bridges, energy production and distribution systems and much more. Understanding of corrosion provide an early warning that damaging process conditions exist which may result in a corrosion-induced failure, diagnosing a particular corrosion problem, identifying its cause, evaluating the effectiveness of a corrosion control / prevention technique. This Book, therefore, provides studies on corrosion behaviour of electro-slag strip cladded weld overlays. It deals with the brief cladding processes that provide protection against corrosion in chemical & petrochemical industries by adopting different grades of stainless steel. Further it explain about the effect of welding speed & post weld heat treatment on corrosion behavior , micro-structural changes and mechanical properties of the weld overlays. This book will be helpful to the researchers & engineers working in corrosion and welding technological area.