This book looks at the applications of coating in piping, valves and actuators in the offshore oil and gas industry. Providing a key guide for professionals and students alike, it highlights specific coating standards within the industry, including ISO, NORSOK, SSPC and NACE. In the corrosive environment of a seawater setting, coatings to protect pipes, valves and actuators are essential. This book provides both the theory behind these coatings and practical applications, including case studies from multinational companies. It covers different offshore zones and their corrosivity level alongside the different types of external corrosion, such as stress cracking and hydrogen-induced stress cracking. The key coatings discussed are zinc-rich coatings, thermal spray zinc or aluminum, phenolic epoxy and passive fire protection, with a review of their defects and potential failures. The book also details the role of coating inspectors and explains how to diagnose faults. Case studies from companies such as Aker Solutions, Baker Hughes, Equinor and British Petroleum illustrate the wide range of industrial applications of coating technologies. This book is of interest to engineers and students in materials, coating, mechanical, piping or petroleum engineering.