Ductile iron pipes performance characteristics 1.
The chemical composition of ductile cast iron
pipe and pipe fittings main elements carbon, silicon, manganese, phosphorus, sulfur and magnesium.
The mechanics properties of the nodular cast iron pipe with high strength, high elongation, and hardness is low, convenient mechanical processing.
Corrosion resistance of the nodular cast iron pipe its corrosion resistance is superior to the steel tube, par with ordinary cast iron pipe has been widely recognized.
Ductile cast iron pipe with electric erosion resistance due to its material composition determines its resistance is bigger, so the corrosion is not easy to generate electricity.
Resistance for the steel (
The resistance of ductile iron are (
5, ductile iron pipes heat resistance for graphite in ductile iron be spherical, improve the density of the material, prevent oxidizing gas from external invasion, thus has heat resistance and growing resistance.
Ductile cast iron pipe with welding performance can be under the guidance of professionals, cast iron welding electrode.
Role is ductile iron pipe lining can improve the corrosion resistance of ductile iron pipes, 2 it is can protect the water quality, prevent secondary pollution.
Generally USES the outer surface of the ductile iron pipe anticorrosion coating spraying zinc coating asphalt paint or epoxy resin paint, for some of the low resistivity soil can have very good protection effect, coating of asphalt or resin paint, can rise to get Z ene of anti-corrosion effect.
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