Ductile Iron Pipe: A Durable and Versatile Solution

Ductile iron pipe, also known as nodular cast iron pipe, is a modern pipeline material widely used in water supply, sewage systems, and industrial applications. Its unique microstructure, formed by adding magnesium or cerium to molten iron, creates spheroidal graphite nodules that enhance strength, toughness, and ductility compared to traditional cast iron.

With a typical tensile strength exceeding 60,000 psi and elongation rates of 10%-18%, ductile iron pipes exhibit excellent resistance to mechanical stress and thermal expansion. The internal cement mortar lining, combined with external zinc coating and bituminous layers, provides dual protection against corrosion, ensuring a service life of 75-100 years under normal conditions.

These pipes are available in diameters ranging from DN80 to DN2600, with flexible joint systems (e.g., push-on or mechanical joints) that adapt to soil movements and seismic activity. Their high load-bearing capacity makes them ideal for deep-buried installations, while the smooth inner surface reduces friction loss by 30% compared to unlined pipes.

Key applications include:Municipal water distribution- Wastewater and stormwater systemsHydropower tunnelsIndustrial slurry transportEco-friendly and 95% recyclable, ductile iron pipes combine longevity with sustainability, making them a preferred choice for modern infrastructure projects.