Excellent mechanical properties

Spheroidizing treatment provides ductile iron with the excellent mechanical properties and also inherits the long- term service life of traditional gray cast iron.The perfect combination of elasticity and rigidity of ductile iron makes it unique in the field of water supply and drainage, and has been widely recognized for its excellent performance.

Perfect corrosion resistance

The main chemical components of ductile iron pipe are carbon, silicon, manganese, phosphorus, sulfur and magnesium, which are determined by their own material composition, and their resistance is large, so it is not easy to produce electric corrosion; After graphite becomes spherical, the compactness of the material is improved,and effectively prevents the invasion of external oxidizing gas, and further improves the corrosion resistance of ductile iron pipes，and the external corrosion protection of nodular cast iron pipe adopts zinc coating and bituminous coating,thus it can effectively prevent the electrochemical corrosion.In contact with soil, the metal zinc will gradually transform into a compact, cohesive and continuous zinc salt layer.

The contact pressure of sealing

Apron increases with the increase of internal water pressure, which makes the sealing effect better and less prone to water leakage. And has a certain range of angular deflection, which can well adapt to the settlement of the foundation and resist a certain earthquake environment.95% of the pipe material of water pipeline in developed European and American countries is made of ductile iron pipes

Convenient construction

Push in junction basically has little influence on rain and snow weather and the installation personnel can carry out the installation work with simple training,and it is easy to complete soil backfilling and compaction,which is suitable for long pipelines.

Long service life

Under appropriate conditions,the service life of ductile iron pipes can reach more than 100 years.