The ductile iron pipes market size was valued at $11.4 billion in 2021, and is estimated to reach $19.2 billion by 2031, growing at a CAGR of 5.3% from 2022 to 2031. Commonly observed diameter types of ductile iron pipes are DN up to 300, DN 300 to 700, DN 700 to 1000, DN 1000 …