What is the performance of ductile iron pipes?

by:XEX     2020-11-30
Ductile iron pipe is a kind of cast iron, is an alloy of iron, carbon and silicon. Graphite of nodular cast iron exists in the form of a sphere. Graphite particle size is 6 - commonly 1 - level 7, cast pipe's quality requirements Level 3 ( Spheroidization rate & ge; 80%) 。 So, as the nature of the nature of the iron and steel, the mechanical properties of the material itself is also improved. Annealing microstructure of nodular cast iron pipe for ferrite and a small amount of pearlite. Ductile iron pipes mainly referred to as the centrifugal ductile iron pipe. It is the nature of the iron and steel performance, excellent corrosion resistance, good ductility, good sealing effect, simple installation, it is mainly used for municipal, industrial and mining enterprises, water supply, gas, oil, etc. , is the first selection of cost-effective water supply pipeline. Compared with the PE pipe, ductile iron pipe installation time than PE pipe is simple, fast, after installation fluctuation pressure on the better; From the point of impermeability and corrosion resistance, ductile iron pipe after installation of sealing is good, and through a variety of anti-corrosion methods to improve its corrosion resistance; From the point of view of hydraulic performance, because of the specifications of the ductile iron pipes generally refers to the inner diameter, the specifications of the polyethylene pipe generally refers to the outer diameter, because under the condition of the same specification and same, ductile pipe can achieve greater runoff; From the point of comprehensive installation and maintenance cost, ductile pipe has more superior performance. Wall, cement mortar anti-corrosion materials
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