Good toughness. Impact value is comparable to medium carbon steel, more than 10 times that of gray iron material.

High corrosion resistance. In the water spray corrosion test, the corrosion amount after 90 days is only 1/40 of the steel pipe and 1/10 of the gray cast iron pipe. The service life is twice that of the gray cast iron pipe and five times that of the ordinary steel pipe.

Good ductility. Elongation ≥7%, comparable to high carbon steel, while gray iron material has zero elongation.

High strength. Tensile strength ób ≥ 420MPa, yield strength ós ≥ 300MPa, comparable to low-carbon steel, and three times that of gray iron material.

Due to the spheroidal graphite microstructure of ductile iron, it is superior to cast steel in reducing vibration capabilities, thus making it more conducive to stress reduction. One of the key reasons for choosing ductile iron is its lower cost compared to cast steel. The low cost of ductile iron makes it more popular, improves casting efficiency, and also reduces machining costs for ductile iron.

Graphite cast iron has comparable strength to cast steel, but it boasts a higher yield strength, with a minimum of 40k, whereas cast steel's yield strength is only 36k. In most municipal applications, such as water, saltwater, steam, etc., the corrosion and oxidation resistance of graphite cast iron exceeds that of cast steel.