DUCTILE IRON PIPE DN300 K9

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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

Product Introduction

CNBM ductile cast iron pipe ranges from DN80-DN1600mm (Tyton, T-Type, Class K7/K8/K9), effective length: 6m, complying with ISO2531and EN545 standards.

Specification& Payment terms

Internal lining: Pipes shall have an internal cement mortar lining in acc with ISO4179.

External coating: Pipes shall be externally coated with metallic zinc spray plus a further layer of resin painting to ISO8179.

Gasket: 100% SBR/NBR/EPDM rubber gasket in accordance with ISO4633.

Packing: Pipes from DN100 to DN300 be bundled with steel belts, others are in bulk.

Payment term: L/C, T/T.
Packing: In bulk vessel or in container.

Q: How is ductile iron pipe different from cast iron pipe?: Ductile iron pipe and cast iron pipe are commonly used in plumbing and drainage applications, but they have differences in composition, strength, and flexibility. To begin with, ductile iron pipe is made from a different iron alloy than cast iron pipe. Ductile iron contains more carbon and silicon, which gives it increased strength and durability. On the other hand, cast iron pipe is made from gray iron, which has higher carbon content but lacks the flexibility of ductile iron. Moreover, ductile iron pipe is renowned for its superior strength and resistance to impact. It can withstand higher pressures and is less likely to crack or break under heavy loads or external forces. Cast iron pipe, although strong, is more brittle and prone to fractures and failures. Another significant distinction is the flexibility of ductile iron pipe. It possesses greater flexibility and can endure bending and deformation without fracturing. This flexibility facilitates easier installation, particularly in areas with uneven terrain or where ground movement may occur. In contrast, cast iron pipe is less flexible and more rigid, making it unsuitable for applications that require flexibility. Additionally, ductile iron pipe has a smoother interior surface compared to cast iron pipe. This smoothness reduces friction, enhances flow efficiency, and minimizes the accumulation of sediment and deposits within the pipe, resulting in improved water flow and reduced maintenance needs. In conclusion, ductile iron pipe sets itself apart from cast iron pipe due to its composition, strength, flexibility, and smooth interior surface. Ductile iron offers superior strength, impact resistance, and flexibility, making it the preferred choice in various plumbing and drainage applications.

Q: Are ductile iron pipes resistant to hydrostatic pressure?: Yes, ductile iron pipes are resistant to hydrostatic pressure. Ductile iron is a type of cast iron that is known for its strength and durability. It has excellent mechanical properties, including high tensile strength and elasticity, which enable it to withstand high levels of hydrostatic pressure. This makes ductile iron pipes well-suited for applications where water or other fluids need to be transported under pressure, such as in water distribution systems, sewer lines, and industrial pipelines. Additionally, ductile iron pipes have a high resistance to corrosion, which further enhances their ability to withstand hydrostatic pressure and ensures their long-term performance and reliability.

Q: How do ductile iron pipes handle ground settlement?: Due to their inherent flexibility and resistance to deformation, ductile iron pipes are highly effective in managing ground settlement. The exceptional qualities of ductile iron, such as its high tensile strength and elongation capacity, make it an ideal material for enduring ground movement. When ground settlement occurs, characterized by the downward shifting of soil or sediment, ductile iron pipes possess the capability to flex and adapt to the changing ground without fracturing. The pipes can absorb the stress caused by settlement and evenly distribute it along their length, minimizing the likelihood of cracks or breaks. Moreover, ductile iron pipes are constructed with a bell and spigot joint system, which permits slight movement and rotation at the joints. This characteristic allows the pipes to accommodate ground settlement by absorbing any misalignment or shifting of the surrounding soil. Furthermore, ductile iron pipes exhibit a greater load-bearing capacity than alternative materials like PVC or HDPE. This implies that they can endure heavier loads and pressures from the surrounding soil, reducing the possibility of pipe failure or collapse during ground settlement. In conclusion, ductile iron pipes are excellently equipped to handle ground settlement due to their flexibility, resistance to deformation, and ability to evenly distribute stress. Their unique properties ensure their ability to withstand the challenges presented by shifting ground conditions, making them a dependable choice for underground infrastructure projects.

Q: Can ductile iron pipes be used for underground oil and gas pipelines?: Yes, ductile iron pipes can be used for underground oil and gas pipelines. Ductile iron is a strong and durable material that can withstand high pressure and corrosive environments, making it suitable for such applications. Additionally, its flexibility allows it to accommodate ground movement and settle effectively, reducing the risk of damage to the pipelines.

Q: Can ductile iron pipe be used for geothermal heat exchange systems?: Yes, ductile iron pipe can be used for geothermal heat exchange systems. Ductile iron pipe is known for its strength and durability, which makes it suitable for handling the high temperatures and pressures associated with geothermal heat exchange systems. Additionally, ductile iron pipe has excellent corrosion resistance, which is important in geothermal systems where minerals and chemicals in the ground can cause corrosion. Ductile iron pipe also has good thermal conductivity, allowing for efficient heat transfer in geothermal systems. Overall, ductile iron pipe is a reliable and cost-effective choice for geothermal heat exchange systems.

Q: Do ductile iron pipes require additional protection against external factors?: Yes, ductile iron pipes typically require additional protection against external factors such as corrosion and abrasion. This can be achieved through the application of protective coatings or linings, cathodic protection systems, and proper installation practices. These measures help extend the lifespan and ensure the durability of ductile iron pipes in various environments.

Q: How long does the cast iron pipe of indoor direct buried sewage need to be examined?: 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. According to the casting method, it is divided into continuous cast iron pipe and centrifugal cast iron pipe, in which the centrifugal cast iron pipe is divided into sand mould and metal type two kinds. Divided into gray cast iron pipe and nodular cast iron pipe according to different material. According to the interface form, it is divided into flexible interface, flange interface, self anchored interface, rigid interface and so on.

Q: How are ductile iron pipes transported and stored?: Ductile iron pipes are typically transported and stored in a careful manner to ensure their integrity. They are commonly transported by trucks, rail, or waterways, using appropriate handling equipment such as cranes or forklifts. During transportation, they are secured to prevent any damage or movement that could affect their structural integrity. When it comes to storage, ductile iron pipes are usually stacked horizontally on stable surfaces, such as concrete or pallets, to prevent any deformation or bending. They are often stored in covered areas to protect them from weather elements that could cause corrosion or other damages. Additionally, pipes should be stored in a well-ventilated space to prevent moisture accumulation and potential rusting. Regular inspections are also conducted during storage to identify any signs of damage or deterioration. Overall, proper transportation and storage practices are crucial to maintain the quality and longevity of ductile iron pipes.

Q: Are ductile iron pipes more expensive than other pipe materials?: Yes, ductile iron pipes are generally more expensive than other pipe materials such as PVC or HDPE. However, they offer superior strength, durability, and longevity, making them a cost-effective choice in the long run for applications that require high pressure or corrosive resistance. Additionally, ductile iron pipes have a lower life cycle cost due to their reduced maintenance and repair needs.

Q: Are ductile iron pipes resistant to biological growth?: Yes, ductile iron pipes are generally resistant to biological growth. Ductile iron is a strong and durable material that is commonly used in water and sewage systems. Its smooth surface inhibits the growth of bacteria, fungi, and other microorganisms that can contribute to biological growth. Additionally, ductile iron pipes are often coated with protective linings or coatings, such as cement mortar or epoxy, which further enhance their resistance to biological growth. However, it is important to note that no material is completely immune to biological growth, and regular maintenance and cleaning of the pipes may still be required to ensure long-term resistance.

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