What is the nominal corrosion potential of aluminum?

The nominal corrosion potential of aluminum is typically around -1.05 volts, which aligns with the characteristics of aluminum as a metal. This value reflects the standard electrode potential measured in a specific environment, which is crucial for comparing the corrosive behavior of metals in cathodic protection systems.

Aluminum often forms a protective oxide layer that can influence its overall corrosion resistance, thus understanding its nominal corrosion potential is essential for designing effective cathodic protection systems. Knowing this value helps professionals establish proper protection measures and predict aluminum's behavior when exposed to various environments.

In the context of cathodic protection, selecting materials and understanding their properties, including corrosion potential, is critical for ensuring the longevity and integrity of structures like pipelines and storage tanks. This potential can vary slightly based on factors like alloy composition and environmental conditions, but the nominal value of -1.05 volts generally serves as a reliable standard in the field.