DUCTILE IRON PIPE DN450 K8/C/K9

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Product Description:

Specification:

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 (%)

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

12) 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

13) T type mechanical joint

14) Packing: in bulk or container

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Q:Ductile iron pipe joint leakage
The main reason for the leakage is that the installation is not in place, resulting in the loss of the apron. Sealed with cement or pipe head Hough section. Recommend the use of Hough section fast and convenient, and there is no menace from the rear.
Q:Method for cutting cast iron pipe
Generally cast iron pipe wall thickness, crisp texture, with traditional saw blade, saw blade cutting, very expensive cutting materials, and cutting accuracy is not high. Nowadays, the cutting tools and cutting machines on the market cut off these kinds of pipes, which are fast and cutting tools. Because the length of the pipe is not cut, the pipe can be continuously cut for a while after the equipment is loaded on the equipment. The worker can spare more time and can realize the operation of more than one machine, thus greatly improving the cutting efficiency. Rotary tool pipe cutting machine cutting cast iron pipe sawdust granular, easy chip removal, cutting section of vertical high, smooth surface without burr. The current equipment has been widely used in cast iron pipe cutting, especially iron pipe cutting, even cylinder car production.
Q:Does the cast iron pipe for spheroidal graphite need corrosion protection when laying underground?
Ductile cast iron pipe after annealing, the microstructure is ferrite and pearlite, good mechanical properties, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc..
Q:How does the white iron appear in the case of ductile iron?
If it is to solve the white cast, the casting can be annealed.To prevent a chill in the casting, it is important to know your entire casting process to find the cause and the solution.
Q:How to analyze and judge the quality of ductile iron pipe
On the quality of single pipe can analyze it from the surface is sand type and water cooled pipes, K8 pipe is different from Shanxi root nature is that the proportion of grade K9 cement and cast iron pipe and the K8 pipe are different, there is no national standard and non standard, no K8 tube, only is the production plant in order to obtain more profits, the dealer is not up to the national standard K9 grade pipe called K8 grade ductile pipe, K9 pipe cement weighs about 1/5 weight of the pipe, but is played in the role of anti-corrosion, the so-called K8 class water mud proportion some manufacturers terrifying 3/4 or 3/5, as the water supply pipe 3/5 or no personally think that two of the proportion of the tube is no problem
Q:Nodular cast iron, heat treatment process and so on
The chill is estimated to be too low in carbon equivalent, poorly bred or cooled too quickly!
Q:What is the content of silicon in silicon molybdenum ductile iron?
Silicon molybdenum material, similar to the United States IDM5381, 5402 and other brands, engaged in automotive components (such as turbocharger parts), and other heat resistant parts have been exposed to high temperature
Q:The plug connection DN800 ductile iron pipe has been installed. "Shall I think so?"
Ductile iron pipes are defined as pipes made by casting more than 18 of casting molten iron by adding a spheroidal agent and then centrifugally centrifugally cast by a centrifugal nodular cast iron machineDuctile iron pipe ([span]Ductile Cast Iron Pipes), referred to as ball pipe, ductile iron pipe and ductile iron pipe etc..
Q:How can the ductile iron pipe be welded?
Welding cast iron is mainly in three aspects: carbon control, stress elimination, structural adjustment. You can choose better welding materials, such as WE777 and other imported welding materials. Crack resistance is very good. In addition, the sewing process can be adopted in the structure to increase the stability of the welding effect. You can learn more about WE777 welding applications.
Q:What is the wall thickness of K10 grade dn=400 ductile iron pipe?
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. The annealed ductile iron pipe is composed of ferrite and pearlite. The mechanical properties of the ductile iron pipe are better.

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