Good toughness. Impact value and carbon steel in detail, gray iron material is more than 10 times.

Strong corrosion resistance. Spray corrosion test, ninety days of corrosion is only 1/40 of the steel, gray iron pipe is 1/10. Life is 2 times the gray iron pipe, 5 times the ordinary steel pipe.

Good plasticity. Elongation ≥ 7%, similar to high-carbon steel, and gray iron material elongation is zero.

high strength. Tensile strength ób ≥ 420MPa, yield strength ós ≥ 300MPa, and low carbon steel is the same, three times the gray iron material.

Due to the microstructure of nodular graphite, the ductile iron is superior to cast steel in reducing the vibration ability, so it is more beneficial to reduce the stress. One of the important reasons for choosing ductile iron is that ductile iron is less expensive than cast steel. The low cost of ductile iron makes this material more popular, with higher casting efficiency and less machining costs for ductile iron.

The strength of ductile iron and the strength of cast steel are comparable. Ductile iron has a higher yield strength, the yield strength of the lowest 40k, while the yield strength of cast steel is only 36k. In most municipal applications, such as: water, salt water, steam, etc., ductile iron corrosion resistance and oxidation resistance are more than cast steel.