For nearly 200 years, cast iron pipe has been a standard piping product for modern water and wastewater systems in North America. Iron pipe has been a customary piping material for these industries because of its strength, reliability, and durability. Gray and ductile cast iron pipe are ferrous structural conduits that can be susceptible to galvanic corrosion if subjected to aggressive environments. When the presence of corrosive conditions is confirmed, the iron pipe industry advocates appropriate corrosion protection.
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