Intergranular Corrosion: What It Is and How to Prevent It
Learn what intergranular corrosion is, why it occurs along metal grain boundaries, and how it can weaken stainless steel valves used in chemical, high-temperature, oil and gas, water treatment, and industrial process systems. This guide explains stainless steel sensitization, chromium carbide precipitation, weld heat-affected zones, low-carbon stainless steel, stabilized grades, nickel alloys, passivation, coating limitations, inspection methods, and material selection practices for reducing intergranular corrosion risk in industrial valves.