Corrosion resistance, sometimes referred to as "rust resistance," indicates a metal's ability to withstand corrosive action and the variance in its corrosion rate. In practice, "high corrosion resistance" is synonymous with a metal's resistance to rusting.

From a scientific standpoint, a material is considered "corrosion-resistant" when its average erosion rate in a standard operating environment is 0.1 mm/year or less.

While most metals undergo corrosion—commonly known as rusting—when exposed to moisture and oxygen, plating effectively improves the corrosion resistance of metals such as steel.

However, if the plating process is not executed under optimal conditions, defects such as pinholes or peeling can occur, compromising the material's integrity; therefore, rigorous attention must be paid to the quality and performance of the final product.