Excellent resilience. Impact value is comparable to medium carbon steel, more than ten times that of gray iron material.
High corrosion resistance. The corrosion amount after 90 days of water spray test 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.
Excellent plasticity. Elongation ≥7%, comparable to high-carbon steel, whereas gray iron material has zero elongation.
High strength. Tensile strength ób ≥ 420MPa, yield strength ós ≥ 300MPa, equivalent 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.
Graphite iron has comparable strength to cast steel. 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 iron exceeds that of cast steel.
































