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E-Book – Ductile iron pipe systems Chapter 2: Ductile cast iron as a material 2/3 05.2014 In ductile cast iron or spheroidal graphite cast iron the graphite is Spheroidal graphite cast iron applications Creightons Corners Ductile Iron. Soucy Belgen offers a wide range of ductile cast iron (spheroidal graphite). The latter is produced by adding magnesium just prior to casting, which