Question: what is the difference between carbon steel and ductile iron?
Answer: Ductile iron has low weldability as compared to that of steel. One of the main differences between Ductile Iron Vs Steel is that ductile iron has a carbon content of 3.0%-3.9% and steel has a carbon content of 0.08%-0.60%. ... The steel pipe can in fact be around 35% thinner than the ductile iron pipe.