DN300 what's the price of the ductile iron pipe / the weight and the price of one meter?
Graphite is exist in spherical form, usually graphite size is 6-7, casting spheroidization grade control requirements for 1-3 quality (spheroidization rate greater than 80%), so the mechanical properties of the material itself has been improved, has the essence of iron, steel performance.
The annealed ductile iron pipe is composed of ferrite and pearlite. The mechanical properties of the ductile iron pipe are better.
Ductile iron pipe is a kind of cast iron. It is an alloy of iron, carbon and silicon.
