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Product Description:


1) The standard of pipe: ISO2531:1998, K9

2) Effective length: 6m

3) Inner cement line: Portland cement line as per ISO4179

4) Zinc coating: at least 130g/m2 as per ISO8179

5) Bitumen painting: at least 70um as per ISO8179

6) With 100% quantity of NBR ring, or SBR ring, or EPDM ring as per ISO4633

7) DN80mm-800mm

8) High strength, lighter than grey iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life tome about 100 yeas

9) Produced by Hangzhou chunfeng machine

10) Checked by automatic inspection equipment

11) Composition:

Chemical composition

Chemical composition

Ductile Cast Iron Pipe (%)

Grey iron pipe (%)

Steel pipe (%)























12) Feature:

Mechanical properties

Ductile Cast Iron Pipe

Grey Iron Pipe

Steel Pipe

Tensile Strength(Mpa)




Yield Strength(Mpa)


No Confirmation

No Confirmation

Bending Strength(Mpa)




Elongation (%)




Brinell Hardness(HBS)



About 140

13) T type mechanical joint

14) Packing: in bulk or container

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Q:Luo what effect of ductile cast iron
It should be chromium, chromium is anti graphitization elements in ductile iron if the content for a long time, will hinder the graphitization of cast iron, the iron cementite microstructure (Fe3C) content increased, the chilling tendency of the cast iron increases, will make iron brittle, hard, affect the mechanical properties and processing properties of nodular cast iron.
Q:Can the sealing ring of ductile iron pipe be reused?
It is better not to have used things, easy aging, sealed, the best to use new
Q:How to correctly measure ductile iron pipe
The outer diameter of the ball tube is measured around the outer edge of the pipe. The caliper is used to measure the inside diameter of the pipe. The length of the pipe is measured by a ruler or tape measure,
Q:What are the lubricants for the installation of ductile iron pipes for tap water?
Lubricant used to reduce frictional resistance of friction pairs and to retard wear of lubricating medium.
Q:What is the K9 standard pressure for ductile iron pipes?
Ductile iron pipe is a kind of cast iron. It is an alloy of iron, carbon and silicon. Graphite is exist in spherical form, usually graphite size is 6-7, casting spheroidization grade control requirements for 1-3 quality (spheroidization rate greater than 80%), so the mechanical properties of the material itself has been improved, has the essence of iron, steel performance.
Q:How can stainless steel pipes and ductile iron pipes be joined?
The utility model can be connected with a wide range flange joint or a wide range flexible joint
Q:DN300 how long is it for water polo and iron pipes?
Cast iron pipe (Cast Iron Pipe) with the cast iron casting pipe cast iron pipe for water supply and drainage gas pipeline pipe fittings including cast iron casting with fatigue strength by continuous cast iron pipe from the cast iron pipe from the cast iron pipe sand metal two according to material with grey cast iron pipe, ductile iron pipe at the interface with flexible sealing interface LAN interface, self anchored interface, interface of the rigid flexible cast iron pipes rubber ring;
Q:Usage of ductile iron pipe expander
Usage of ductile iron pipe expander:1, the expansion device should check its type, specification and piping configuration before installation, must comply with the design requirements.2, the expansion of the inner sleeve should be noted that the direction of the inner sleeve is consistent with the direction of the medium flow. The hinge rotation plane of the hinge type telescopic device should be consistent with the displacement rotation plane.3, the need for "cold tight" expansion device, pre deformation of the auxiliary components should be installed in the pipeline before they can be removed.4, it is strictly prohibited to use telescopic deformation method to adjust the installation of the pipe, so as not to affect the normal function of the telescopic device, reduce the service life and increase the piping, equipment and supporting components of the load.5 、 during installation, welding slag is not allowed to splash to the surface of wave shell, and the wave shell is not allowed to suffer other mechanical damage.6, pipe installation is completed, should be removed as soon as the wave expansion device used for installation and transportation of yellow auxiliary positioning components and fasteners, and according to the design requirements will be transferred to the specified position limiting device, the pipe system has the ability to compensate fully in the environmental conditions.
Q:Method for joining cast iron pipes
The connection between the pipe and the pipe adopts the form of socket type or flange disk interface. According to the function, it can be divided into two kinds: flexible interface and rigid interface. The flexible interface is sealed with rubber ring, which allows a certain degree of corner and displacement, so it has good seismic resistance and tightness. It is easy and quick to install than rigid interface. It has little labor intensity according to the casting method.
Q:What do ductile iron pipes need to connect with three? Can I contact it directly?
Old craft1. dozen to lead lead; cut into strips, with a file play in the interface2. use expanded cement with asbestos3 use the asphalt

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