Paip besi mulur
-
Nodular cast iron steel pipes are essentially ductile iron pipes, which have the essence of iron and the properties of steel, hence their name. Graphite in ductile iron pipes exists in a spherical form, with a general size of 6-7 grades. Dari segi kualiti, tahap spheroidisasi paip besi tuang diperlukan untuk dikawal pada tahap 1-3, dengan kadar spheroidisasi ≥ 80%. Therefore, the mechanical properties of the material itself have been improved, possessing the essence of iron and the properties of steel. After annealing, the microstructure of ductile iron pipes is ferrite with a small amount of pearlite, which has good mechanical properties, hence it is also called cast iron steel pipes.
-
