Peculiarity of Ductile Iron Pipes

Ductile iron pipe is a kind of cast iron pipe. Quality requirements of cast iron pipe ball level control for the 1-3 level (nodularity rate "80%), and thus the mechanical properties of the material itself can get a better improvement, with the nature of iron, steel performance. Annealed ductile iron pipe, the microstructure of ferrite plus a small amount of pearlite, good mechanical properties, excellent corrosion resistance, good ductility, good sealing effect, easy installation, mainly for municipal, industrial and mining enterprises to the water, gas , Oil and so on.

In the ferrite and pearlite matrix distribution of a certain number of spherical graphite, according to the nominal diameter and elongation requirements, the matrix organization of ferrite and pearlite ratio is different, the proportion of small-caliber pearlite Generally not more than 20%, the general control of large diameter of about 25%.

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