• K Type Ductile Iron Pipe DN300 Socket spigot pipe System 1
  • K Type Ductile Iron Pipe DN300 Socket spigot pipe System 2
K Type Ductile Iron Pipe DN300 Socket spigot pipe

K Type Ductile Iron Pipe DN300 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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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.


Q:Does the cast iron have size 250? What's the performance?
Ductile iron does not have size 250. Ductile iron is the beginning of QT, QT400-15, QT450-10, QT500-7 is the general use of nodular cast iron brand. Nodular cast iron welding can be determined, this should be in some high strength cast iron equipment used more, the tensile strength of normally ductile cast iron welding in welding is higher, is worse than the grey cast iron, it is actually very difficult to distinguish with the naked eye is ductile iron or cast iron the iron in the repair equipment, we usually use WE777 special cast iron electrode universal wide welding, but it is only for maintenance use, the effect is really good, reducing the risk of cracking and high strength welding rod matching to ensure the strength of welding seam.
Q:Ductile iron pipe in the direction of it?
The utility model is mainly used for conveying water, and is an ideal choice for tap water pipes.
Q:Are ductile iron pipes resistant to biological growth?
Indeed, ductile iron pipes exhibit a general resistance to biological growth. Ductile iron, a robust and enduring substance, finds widespread application in water and sewage systems. Its sleek exterior hampers the proliferation of bacteria, fungi, and other microorganisms that foster biological growth. Moreover, ductile iron pipes frequently receive protective linings or coatings, for instance, cement mortar or epoxy, which heighten their resistance to biological growth. Nevertheless, it is crucial to acknowledge that no material remains entirely impervious to biological growth, necessitating regular maintenance and cleansing of the pipes to ensure sustained resilience in the long run.
Q:What are the different types of thrust restraints for ductile iron pipe?
There are several types of thrust restraints used for ductile iron pipe, including thrust blocks, tie rods, and anchor blocks. Thust blocks are concrete structures placed on either side of a bend or fitting to counteract the forces created by water pressure. Tie rods are steel rods that are anchored to the pipe and secured to an external structure, providing additional support against thrust. Anchor blocks are also made of concrete and are installed at regular intervals along the pipeline to prevent movement and absorb thrust forces.
Q:Can ductile iron pipes be used for oil and gas pipelines?
Yes, ductile iron pipes can be used for oil and gas pipelines. Ductile iron is known for its durability, strength, and corrosion resistance, making it suitable for transporting oil and gas. Its high tensile strength and ability to withstand pressure and extreme temperatures make it a reliable choice for these applications.
Q:How do ductile iron pipes handle thermal expansion and contraction?
Ductile iron pipes are specifically designed to handle thermal expansion and contraction effectively. Due to their unique composition and structure, which includes graphite nodules in the iron matrix, these pipes have the ability to accommodate temperature variations without significant damage or distortion. The graphite nodules act as flexible joints, allowing the pipe to expand and contract without cracking or breaking. This characteristic makes ductile iron pipes highly resistant to the stresses caused by thermal fluctuations, ensuring their long-term durability in various temperature environments.
Q:How does ductile iron pipe perform in seismic conditions?
Ductile iron pipe has excellent performance in seismic conditions due to its inherent flexibility and strength. It can withstand ground movements and vibrations caused by earthquakes without fracturing or breaking. Its ability to absorb and dissipate energy helps prevent catastrophic failures and ensures the integrity of the pipeline system. Additionally, ductile iron pipe's corrosion resistance and durability make it a reliable choice for long-term performance in seismic-prone areas.
Q:How does ductile iron pipe perform in areas with high soil acidity?
Due to its innate corrosion resistance, ductile iron pipe is highly effective in areas with high soil acidity. It is specifically engineered to endure harsh environments and incorporates a safeguarding lining that shields against damage caused by acidic soil. This lining functions as a barrier, safeguarding the pipe from corrosion induced by the acid in the soil. Moreover, ductile iron pipe exhibits exceptional resistance to external loads, making it well-suited for regions with unstable soil conditions. In conclusion, ductile iron pipe is a dependable option for areas with high soil acidity, as it can withstand corrosive effects and offer enduring performance.
Q:What is the expected joint performance of ductile iron pipes?
The expected joint performance of ductile iron pipes is generally considered to be excellent. Ductile iron pipes are known for their high durability and strength, making them suitable for various applications such as water distribution, sewer systems, and industrial pipelines. One of the key aspects of joint performance in ductile iron pipes is their ability to withstand external loads and pressure. The joints in ductile iron pipes are typically designed to provide a tight and secure connection, ensuring minimal leakage and long-term structural integrity. This is achieved through various joint types, including push-on joints, mechanical joints, and restrained joints. Push-on joints are commonly used in ductile iron pipes and allow for easy installation without the need for special tools or equipment. These joints utilize a rubber gasket that provides a watertight seal, preventing any leakage. Mechanical joints, on the other hand, involve the use of mechanical devices such as bolts and nuts to create a rigid connection between the pipes. This type of joint provides additional strength and resistance against external forces. In terms of performance, ductile iron pipes have been extensively tested and proven to meet or exceed industry standards for pressure and bending strength. They have high resistance to corrosion, which ensures a long service life, and are also less susceptible to damage from ground movements or vibrations. These properties contribute to the overall joint performance of ductile iron pipes, ensuring reliable and efficient operation in various infrastructure systems. Overall, when installed and maintained properly, ductile iron pipes exhibit excellent joint performance, providing a reliable and durable solution for various applications in the water and wastewater industry.
Q:Are ductile iron pipes resistant to alkaline attacks?
Generally, ductile iron pipes have resistance against alkaline attacks. Ductile iron is renowned for its durability and ability to resist corrosion, making it suitable for a range of applications, including water and wastewater systems. Certain metals can experience corrosion from alkaline substances, such as high pH levels in water or chemicals. However, ductile iron has been specially engineered to withstand these conditions. Its composition, which includes the addition of alloying elements like nickel and chromium, enhances its resistance to alkaline attacks. Moreover, ductile iron pipes are frequently coated with protective substances like cement mortar or polyethylene, which further increase their resistance against alkaline substances. Nevertheless, it is important to consider that the specific resistance of ductile iron pipes to alkaline attacks can be influenced by various factors, such as the concentration and duration of exposure to alkaline substances, as well as the presence of other corrosive agents. Therefore, it is always advisable to consult with manufacturers or industry experts to ensure the appropriateness of ductile iron pipes for specific alkaline environments.

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