Galvanic Corrosion in the Water/Wastewater Infrastructure: Coupling Stainless And Carbon Metals Leads To Accelerated Corrosion

Stainless steel is selected for use in the municipal waterworks industry because of its inherent corrosion resistance properties. Designers oftentimes overlook the associated problems with coupling stainless steel with carbon steel metals. When these materials are electrically connected and placed into aqueous environments (immersion service), accelerated corrosion of the anodic carbon steel metal is initiated.

This webinar will review galvanic (bi-metallic) corrosion theory and, in turn, provide examples where bare stainless steel and coated carbon steel metals were coupled in water and wastewater structures. Recommendations will then be laid out on how to minimize the effects of galvanic coupling stainless steel with carbon steel metals.