Ductile iron, also called spheroidal graphite iron, is a kind of cast iron alloy. Its carbon structure is nodule graphite, which is different from grey cast iron that has flake form graphite. This special structure brings excellent ductility and good impact, heat, and wear resistance to ductile iron. In addition, it has steel-similar performance but it costs lower than steel. It is widely used in pipe and valve manufacturing because of these advantages.



Established in 1968, 317 Valve specializes in worldwide valve export as a leading valve supplier. Explore our ductile iron valves below and feel free to contact us for further information.