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Product Description:


1) The standard of pipe: ISO2531:1998, EN545:2006K9 K8

2) Effective length: 6m/5.7m

3) Inner cement line: Portland cement lineas per ISO4179

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

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

6)With 102% quantity of NBR, SBR, or EPDM ring asper ISO4633

7) DN80-DN1200

8) Highstrength, lighter than grey iron, good corrosion resistance, no furring, smallflow resistance, easy fixing, long life tome about 100 yeas

9)Checked by automatic inspection equipment

10) Composition:

Chemical composition

Chemical composition

Ductile Cast Iron  Pipe (%)

Grey iron pipe (%)

Steel pipe (%)

























11) 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

12) T type mechanical joint

13) Packing: in bulk or container

PACKING: 1) Pipesare bundled together with the steel belt.

2) Wooden pieces are put between the pipes.

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Q:It's not easy to drill ductile iron with cobalt high speed steel bit. Please help to point it out
Choose carbide or whole carbide drill, about 90HRC in hardness. But it requires a high number of drills, around 3000.
Q:Is the fire hose capable of using rapid repair joints?
Clear。 Before installation, cleaning work should be carried out, the parts to be cleaned include: socket end, the mouth of the socket, the corner of the socket to the white line should be smooth, no sharp points, so as not to wear aprons when installation.
Q:What are the differences between ductile cast iron pipes and centrifugal ductile iron pipes?
Small, thin pipe fittings are usually rolled or continuously cast, and large, thick pipes are usually centrifugally cast. Compared to sand casting, the tissue is compact and homogeneous.
Q:Why does the construction wastewater system use ductile iron pipes instead of galvanized steel tubes?
The sewerage system uses ductile iron pipes. The premise should be pressure pipe drainage. It must be a special occasion, otherwise the cost will be high. In general, precast concrete pipes are recommended.
Q:Which is good for water polo cast iron pipe steel pipe?
In summary, if the demand is not high, the use of stable environment, pressure and vibration is not a place recommend the use of ductile iron pipe; if is an important facility for high requirements or site conditions, abnormal conditions, vibration and impact may be relatively large, with ordinary seamless steel tube.
Q:Classification of cast iron pipes
Drainage cast iron pipe:Pipes and fittings for plain cast iron bearing. Flexible anti-seismic interface cast iron pipe, this kind of cast iron pipe is sealed by rubber ring and bolt fastened. It has good flexibility and flexibility under water pressure. The utility model can adapt to larger axial displacement and lateral deflection, and is suitable for indoor drainage pipes of high-rise buildings, and is particularly suitable for earthquake zones. From the interface form, can be divided into: W flexible cast iron drain pipe, B flexible cast iron drain pipe, A flexible cast iron drain pipe.
Q:DN1800 can the length of ductile iron pipes be several meters? What is the total weight?
In quality, the spheroidization of cast iron pipes is controlled to be 1-3 (spheroidization rate 80%), so the mechanical properties of the cast iron pipes, ductile iron pipes and finished product libraries can be better improved, with the nature of iron and the properties of steel.
Q:How many meters does the cast iron water supply pipe dn150,1 tons?
When pouring added calcium alloy in the flow inlet for graft inoculation, every time after the pouring, need in the mold surface with compressed air spraying a thin layer of dry calcium silicate powder, a centrifuge is composed of upper and lower halves of the closed shell, the supporting cast roller is installed on the bottom of the shell, the mold in front of a ring gear mounted on the housing at the end of the DC motor through the transmission gear direct mold, shell mold through Hugh ends are equipped with sealing ring, the front end of the shell shell installed with half ring a turning cylinder pictophonetic mountain Rae centrifuge under the wheels, so as to make reciprocating motion on the inclined orbit
Q:How much is the manual installation fee of ductile iron pipes from 100 to 150 per metre?
According to the various connection modes after the installation of artificial fee at =8.7~9.0 yuan (about /M this is pure artificial installation fee, no other costs to calculate, if packet labor costs and construction should be appropriately increased when installed).
Q:What material is ductile cast iron 235A?
Pig iron is an alloy of iron and carbon carbon content more than 2%, pig iron carbon content is generally in 2.5%--4%, including C, SI, and Mn, S, P and other elements, is the use of iron ores in blast furnace products. According to the different forms of carbon in pig iron, and can be divided into pig iron, cast iron and steel ball ductile cast iron. Several precipitation of spherical graphite cast iron. The cutting action on the metal substrate than spheroidal graphite flake graphite cast iron, the strength of the matrix organization strength of 70 ~ 90%, the tensile strength is up to 120kgf/mm2, and has good toughness. Ductile iron chemical composition besides iron usually contains: the amount of carbon 3.3.8%, silicon 2.3.0%, manganese, phosphorus, sulfur and no more than 1.5% of the total amount of rare earth, magnesium spheroiditic agent.

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