The corrosion rate is a measure of how quickly a material, typically a metal, deteriorates due to chemical reactions with its environment. It is usually expressed in units such as millimeters per year (mm/year) or mils per year (mpy). Factors influencing the corrosion rate include temperature, humidity, and the presence of corrosive agents like salt or acids. Understanding the corrosion rate is crucial for industries that rely on metals, such as construction and manufacturing. By monitoring this rate, engineers can predict the lifespan of materials and implement protective measures, such as coatings or corrosion inhibitors, to extend their durability and safety.