Excellent toughness. Impact value is comparable to medium-carbon steel, and more than ten times that of gray iron material.

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

Good plasticity. 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 more conducive to stress reduction. One significant reason for choosing ductile iron is its lower cost compared to cast steel. The low cost of ductile iron makes it more popular, increases casting efficiency, and also reduces machining costs for ductile iron.

The strength of spheroidal cast iron is comparable to that of cast steel. Spheroidal cast iron boasts a higher yield strength, with a minimum of 40k, while the yield strength of cast steel is only 36k. In most municipal applications, such as water, saltwater, steam, etc., the corrosion and oxidation resistance of spheroidal cast iron exceeds that of cast steel.