• DUCTILE IRON PIPE DN300 System 1
  • DUCTILE IRON PIPE DN300 System 2
  • DUCTILE IRON PIPE DN300 System 3
  • DUCTILE IRON PIPE DN300 System 4
DUCTILE IRON PIPE DN300

DUCTILE IRON PIPE DN300

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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

Q:Are ductile iron pipes suitable for mining applications?
Yes, ductile iron pipes are suitable for mining applications. Ductile iron is a type of cast iron that has been treated to enhance its strength, durability, and ductility. These pipes are known for their high tensile strength and resistance to corrosion, making them ideal for underground mining operations where they may be exposed to harsh conditions. One of the key advantages of ductile iron pipes in mining applications is their ability to withstand high pressure and heavy loads. They have excellent structural integrity and can resist both internal and external forces, ensuring reliable performance in demanding mining environments. Additionally, ductile iron pipes have a long service life and require minimal maintenance. They are highly resistant to abrasion, which is crucial in mining operations where abrasive materials like rocks, minerals, and ores are present. The smooth inner surface of these pipes also minimizes friction, allowing for efficient transportation of mining materials. Moreover, ductile iron pipes are cost-effective compared to alternative materials like steel or concrete. They have a lower upfront cost and require less frequent replacements, resulting in reduced long-term expenses for mining companies. In conclusion, ductile iron pipes are well-suited for mining applications due to their strength, durability, resistance to corrosion and abrasion, long service life, and cost-effectiveness. These pipes provide reliable and efficient transportation of mining materials, contributing to the overall efficiency and productivity of mining operations.
Q:How do ductile iron pipes perform in freeze-thaw cycles?
Ductile iron pipes perform exceptionally well in freeze-thaw cycles. The material properties of ductile iron, such as its high tensile strength and excellent impact resistance, make it highly resistant to the stresses caused by freeze-thaw cycles. Unlike other materials, ductile iron pipes can withstand the expansion and contraction that occurs during freezing and thawing without cracking or breaking. One of the key reasons why ductile iron pipes excel in freeze-thaw conditions is their ability to absorb and dissipate stresses. The high ductility of the material allows it to deform slightly under stress, thereby releasing the built-up pressure and preventing any damage to the pipe. This characteristic ensures that the pipes can handle the repeated cycles of freezing and thawing without compromising their structural integrity. Additionally, ductile iron pipes have a protective and durable coating, such as cement mortar lining or polyethylene encasement, which further enhances their resistance to freeze-thaw cycles. These coatings provide an additional layer of protection and prevent water from coming into direct contact with the iron, reducing the potential for corrosion. Furthermore, ductile iron pipes have a long service life, typically exceeding 100 years. This longevity is attributed to the material's inherent strength and resistance to various environmental factors, including freeze-thaw cycles. The pipes' ability to withstand these cycles without significant damage ensures the reliability and durability of the water distribution system, even in areas prone to freezing temperatures. In conclusion, ductile iron pipes are highly reliable and perform exceptionally well in freeze-thaw cycles. Their high tensile strength, impact resistance, ability to absorb stresses, and protective coatings make them a preferred choice for water distribution systems in regions with harsh winter conditions.
Q:Why is the cast iron tube lined with cement? Under what circumstances are ductile iron pipes lined with cement, and under what circumstances do not have to be lined with cement?
The cement lining protects the water quality, reduces the head loss and improves the service life of the spheroidal graphite pipe. As long as the water delivery hose is used, the cement lining must be used. There is no lining cement for conveying air.
Q:Can ductile iron pipes be used in dam or reservoir projects?
Yes, ductile iron pipes can be used in dam or reservoir projects. Ductile iron pipes are known for their durability, strength, and corrosion resistance, making them suitable for various applications, including water supply systems in dams and reservoirs. Additionally, their ability to withstand high pressure and adapt to ground movement makes them a reliable choice for such projects.
Q:Can ductile iron pipes be repaired if they are damaged?
Ductile iron pipes can undergo repairs if they sustain damage. The necessary repair method will depend on the extent of the damage. In instances where the pipe is cracked or has small holes, a repair clamp or a stainless-steel sleeve can be utilized to seal the affected area. These approaches offer a temporary solution, allowing water to continue flowing until a more permanent fix can be implemented. For more severe damage, such as significant cracks or broken segments, a complete replacement may be required. This process entails removing the damaged section of the pipe and installing a new piece. It is a specialized task that demands specific equipment and expertise, but it effectively restores the pipe's functionality. It is crucial to note that only trained professionals with experience in working with ductile iron should carry out the repairs. This ensures proper execution and safeguards the integrity and safety of the pipeline system. Regular inspection and maintenance of ductile iron pipes can aid in early detection of potential issues, preventing extensive damage that may necessitate replacement instead of repair.
Q:What pipe can be used to replace the cast iron pipe in the water supply? Thank you
Cast iron pipes (Cast, Iron, Pipe), cast cast pipe. Cast iron pipes are used for water supply, drainage and gas transmission lines. They include cast iron pipes and pipe fittings. Labor intensity is small.
Q:What are the recommended bedding and backfill materials for ductile iron pipe?
To ensure proper alignment and prevent damage during installation and operation, ductile iron pipe requires a combination of granular materials such as sand, gravel, or crushed stone for bedding and backfill. Bedding involves using sand to create a level surface, distributing the load evenly and reducing stress concentration. As for backfill, it should be carefully selected to offer good compaction and drainage properties, preventing settling and potential damage. Common choices for backfill are crushed stone or gravel, which provide stability and allow for proper compaction. To ensure the long-term performance and durability of the pipe system, it is crucial to adhere to the recommendations of the pipe manufacturer and relevant industry standards when selecting bedding and backfill materials. These materials must meet specified size and quality requirements. Additionally, local regulations and soil conditions should also be considered when determining the appropriate bedding and backfill materials for ductile iron pipe installations.
Q:What do ductile iron pipes need to connect with three? Can I contact it directly?
Because the interface material used in the old process is poisonous, especially in the water supply pipeline, environmental protection requires a new process now
Q:Do ductile iron pipes have inner enamel?
For fire water and living water supply, low requirement is lined with cement mortar, some high can be lined with epoxy resin, epoxy ceramic lining, as well as cement mortar lining epoxy sealing layer (compromise is the price of blame).
Q:How do ductile iron pipes handle extreme temperatures?
Ductile iron pipes, known also as cast iron pipes, possess the ability to effectively handle extreme temperatures. The material composition of ductile iron enables it to endure both high and low temperatures without experiencing significant damage or degradation. When exposed to high temperatures, ductile iron pipes demonstrate exceptional thermal resistance, rendering them suitable for applications involving the transportation of hot liquids or gases. The high melting point of ductile iron, ranging from 2060°C to 2200°C, guarantees that the pipes can withstand extreme heat without melting or distorting. Consequently, these pipes are ideal for utilization in industries such as oil and gas, steam distribution, and high-temperature water supply systems. Likewise, ductile iron pipes exhibit satisfactory performance in low-temperature environments. They possess a low coefficient of thermal expansion, thereby enabling them to endure the expansion and contraction that occurs during temperature fluctuations without cracking or fracturing. This quality makes them appropriate for use in cold climates or in applications involving the transportation of chilled liquids or gases. Furthermore, ductile iron pipes possess excellent thermal conductivity, allowing them to efficiently dissipate heat. This characteristic proves particularly significant in high-temperature applications where effective heat transfer is vital to prevent damage to the pipes or the materials being transported. In conclusion, ductile iron pipes effectively handle extreme temperatures due to their high melting point, low coefficient of thermal expansion, and exceptional thermal conductivity. These attributes establish them as a dependable choice for various applications involving extreme temperature conditions.

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