Ductile iron accessories

Features of ductile iron fittings: it has the nature of iron, the performance of steel, excellent performance stability, powerful extension and easy installation. It is mainly used for water supply and gas transmission in Municipal Industrial and mining enterprises.
The essence of nodular iron fittings is nodular iron castings. Because nodular iron castings have the nature of iron and the properties of steel, they are called so. Graphite in ductile iron castings exists in spherical shape, and the size of graphite is generally 6-7 grade. Quality requirements of cast iron pipe spheroidization grade control for 1-3, spheroidization rate ≥ 80%, so the mechanical properties of the material itself by the better actual effect, with the nature of iron, steel properties. After annealing, the metallographic structure of ductile iron casting is ferrite plus a small amount of pearlite, which has good mechanical properties, so it is also called cast iron pipe.
Ductile iron fittings is a kind of cast iron pipe. Quality requirements of cast iron pipe spheroidization grade control for 1-3 (spheroidization rate > 80%), so the mechanical properties of the material itself
It has the nature of iron and the properties of steel. The metallographic structure of the annealed ductile iron casting is ferrite with a small amount of pearlite. It has good mechanical properties, stable performance, excellent performance, strong extension, good sealing effect and easy installation. It is mainly used for water supply, gas and oil transportation in municipal and industrial enterprises.