K Type Ductile Iron Pipe DN800 socket spigot pipe

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
200 m.t
Supply Capability:
30000 m.t/month

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Product Description:

Specification:

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 (%)

C

3.5-4.0

3.2-3.8

0.1-0.2

Si

1.9-2.6

1.4-2.2

0.15-0.4

Mn

0.15-0.45

0.4-0.6

0.3-0.6

P

0.06

0.3

0.02-0.03

S

0.02

0.1

0.02-0.03

Mg

0.03-0.06

 

 

11) Feature:

Mechanical  properties

 

Ductile Cast Iron  Pipe

Grey Iron Pipe

Steel Pipe

Tensile  Strength(Mpa)

420

150-260

400

Yield Strength(Mpa)

300

No Confirmation

No Confirmation

Bending  Strength(Mpa)

590

200-360

400

Elongation (%)

10

Neglected

18

Brinell  Hardness(HBS)

≤230

230

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:How can the cast iron pipe be connected?
Drain pipe or water supply pipe?. The drainage tube as stated on the first floor, water supply pipe of T type and K type and S type, currently dominated by T, a lot of Xinxing Pipes as well, when connecting with T type rubber ring socket socket into the brand, after inserted with oil. The installation team is generally safe.
Q:What are the differences between cast iron pipes W and A?
W type socket cast iron drainage pipe made of stainless steel flexible clamp connection in the construction of the installation; A type cast iron drainage pipe with flexible flange and sealing ring connection in the construction of the installation; B type cast iron drainage pipe comprehensive advantages of W type and A type cast iron drainage pipe, straight pipe part adopts W type bearing mouth of pipe, pipe fittings with double flange structure;
Q:How can the ductile iron pipe elbow be fixed?
Ductile cast iron pipe in the groove pipe connection technology is also called the lathedog connection technology, has become the most liquid and gas pipeline connection technology, although this technology is later than foreign in domestic development time, but because of its advanced technology, domestic market quickly received. Since 1998, it has been developed and applied in just a few years. It has gradually replaced two traditional ways of pipe connection, such as flange and welding. Not only technically more mature, the market is generally recognized, but also by the national laws and regulations actively guide the policy. The application of grooved pipe connection technology makes the complex pipe connection procedure simple, fast and convenient. Took a big step forward in pipeline connection technology.
Q:QT400-10 nodular cast iron requires hardness of HRC47~51. Why can't quench hardness be reached?
Because of the high tempering stability of the nodular iron, the tempering temperature is 400-450 degrees, and the tempering time is 1 hours.
Q:Ductile iron pipe, socket connection, pipe length, you can cut open it?
The cutting length is 4 meters from the jack. Among them, DN300 below 100% can be cut, DN350 above shear ratio is 10%, cut the small head to do chamfering treatment.
Q:Is the ambient temperature at minus 20 degrees better with grey cast iron or ductile iron?
Ductile iron is good, its tensile properties are destined to withstand low temperatures, gray cast iron is a little bit worse.
Q:What is the manufacturing process of ductile iron pipes? Thank you
Made of nodular cast iron: a strict chemical composition, the content of silicon in molten iron requirements than the original carbon gray cast iron, nodular cast iron in reduced manganese, phosphorus, sulfur content of two liquid iron tapping temperature cast iron is higher than the ash, than the compensation sphere, conceived at the disposal of liquid iron temperature. Off line ball three disposal, that is to add a liquid iron ball agent four inoculation disposal of five nodular cast iron activity is poor, thus shorten the larger, higher demand for pouring temperature and pouring system larger size, more use of the riser cold iron by one condensation heat treatment criterion six iron is iron carbon alloy carbon content greater than 2%, the carbon content in ordinary industrial pig iron containing C, SI and 2.5%--4%, and Mn, S, P and other elements, is a product of iron ores in blast furnace. According to the difference in the shape of the carbon in the pig iron, it can be divided into several kinds, such as steelmaking pig iron, forging pig iron and nodular cast iron.
Q:How can the old water pipe ductile iron pipe be opened with three flanges?
There are finished products with flanges, but they are not easy to buy. They are basically useless. Now basically the adoption of the pipe, so it is recommended to use the tray flange, disk plug: one for the flange, one for the socket; socket: one for the mouth, one for the socket. According to the diameter of pipe fittings, there are usually equal diameter three pass, different diameter three pass and so on. According to the direction of branch pipe, there are three straight and oblique three. In accordance with the connection mode, there are three ordinary, threaded three pass, card sleeve three, and socket three. The connecting flange of the sleeve is connected with the connecting angle of the bearing mouth, and the telescopic device can also be used. 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, and it is easy and quick to install than rigid interface.
Q:A tube is used only in ductile iron pipes, isn't it?
Is that the nodular graphite cast iron pipe is called centrifugal ductile iron pipe, it has the properties of nature, iron and steel, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc.. Water supply pipe is the first choice, with high cost performance.
Q:Is the cast iron pipe buried in need of antiseptic treatment? What kind of anticorrosive materials are used?
It must be antiseptic. Usually hot asphalt brush painted two times, winding glass fiber cloth two road, cross construction.

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