ductile iron pipe china Material:Ductile Iron

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Quick Details

Place of Origin:China (Mainland)
Model Number:DN80-1600
Length:6M/5.7M/NEGOTIATED
Standard:ISO2531 / EN545
Application:Potable/Sewage Water
Diameter:DN80-1600
Shape:Round
Hardness:230
Pipe Wall Thickness:standerd
Pull Strength:420
Yield (≥ MPa):300
Material:Ductile Iron
water ductile iron pipe:SO2531 / EN545 DI pipe

Packaging & Delivery

Delivery Detail:	30-45 days

Specifications

ductile iron pipe:
1. DN80-DN1600mm (T-Type, Class K9)
2.effective length 6m/pc
3.comply with ISO2531/EN545/EN598

Company Profile

CNBM International Corporation is the leading production base and renowned supplier of Ductile Iron Water Pipe systems of both potable and waste water in China. We are constantly looking to develop high quality products to ensure the longest service life and wonderful performance.

CNBM Pipelines regard quality as the essential factor leading to successful business. Every ductile iron pipe is tested in accordance with BS EN545 (water application) or BS EN598 (sewer application). CNBM Pipelines products comply with and are tested according to the relevant European and International Standards. Our pipes are manufactured under the quality management system BS EN ISO 9001. After years of efforts, CNBM Pipelines has built up great reputation in terms of quality and service among customers worldwide.

Product Introduction

CNBM ductile 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: ductile iron pipes shall have an internal cement mortar lining in acc with ISO4179.

External coating: ductile iron 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: ductile iron 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 does ductile iron pipe perform in extreme temperatures?: Ductile iron pipe is known for its exceptional performance in extreme temperatures. Due to its unique composition and manufacturing process, ductile iron pipe can withstand both high and low temperatures without compromising its structural integrity. In high-temperature environments, ductile iron pipe demonstrates excellent heat resistance. It can withstand temperatures up to 1000 degrees Fahrenheit, making it suitable for applications that involve hot liquids or gases, such as steam pipelines or industrial processes. The high strength and thermal stability of ductile iron allow it to maintain its shape and structural integrity even under extreme heat conditions, ensuring long-term reliability and safety. Similarly, ductile iron pipe also performs well in low-temperature environments. It can endure sub-zero temperatures without becoming brittle or prone to cracking, which is a common issue with other materials like cast iron. This makes ductile iron pipe ideal for applications in cold climates, such as water distribution systems in freezing temperatures. Furthermore, ductile iron pipe's ability to resist thermal expansion and contraction is another advantage in extreme temperatures. It has a low coefficient of thermal expansion, meaning it expands and contracts less compared to other materials. This property helps to minimize the stress on the pipe and reduces the risk of leaks or failures caused by temperature fluctuations. In summary, ductile iron pipe exhibits exceptional performance in extreme temperatures. Its heat resistance, ability to withstand low temperatures, and resistance to thermal expansion and contraction make it a reliable choice for various applications, ensuring safe and efficient operations even in challenging environments.

Q: Are ductile iron pipes suitable for use in chemical storage tanks?: Ductile iron pipes are not suitable for use in chemical storage tanks. While ductile iron pipes have excellent mechanical properties, including high tensile strength and impact resistance, they are not resistant to corrosion caused by various chemicals. Chemical storage tanks require materials that can withstand the corrosive properties of the stored chemicals to ensure the safety and integrity of the tank. Therefore, materials such as fiberglass-reinforced plastic (FRP), stainless steel, or high-density polyethylene (HDPE) are commonly used for chemical storage tanks due to their superior corrosion resistance. It is crucial to select the appropriate material for chemical storage tanks to prevent leaks, contamination, and potential hazards.

Q: Are ductile iron pipes resistant to acid attacks?: Yes, ductile iron pipes are generally resistant to acid attacks. Ductile iron has a protective layer of graphite and a dense matrix structure that helps in preventing the penetration of acid. However, prolonged exposure to highly corrosive acids or extreme pH levels may still cause some degradation over time.

Q: How are ductile iron pipes protected against external soil loads?: Ductile iron pipes are protected against external soil loads through several methods. One of the primary methods is the use of a protective coating on the exterior surface of the pipe. This coating acts as a barrier between the iron pipe and the surrounding soil, preventing direct contact and reducing the risk of corrosion. Another method of protection is the use of trench backfill materials. The soil used for backfilling is carefully selected and compacted to provide adequate support and load distribution for the pipe. This helps to minimize the stress and pressure exerted on the pipe by the surrounding soil. Additionally, the design and installation of the pipe system play a crucial role in protecting ductile iron pipes against external soil loads. The pipes are typically laid in a properly engineered trench, which includes appropriate bedding and backfilling techniques to ensure stability and minimize the potential for damage. Furthermore, the use of proper pipe jointing techniques is essential for protecting against external soil loads. Joints are often designed to be flexible, allowing for some movement and accommodating external loads. This helps to distribute the stress along the length of the pipe and prevents concentrated pressure points that could lead to failure. Overall, a combination of protective coatings, appropriate backfill materials, proper installation techniques, and joint design contribute to the effective protection of ductile iron pipes against external soil loads. This ensures the longevity and reliability of the pipe system, even in challenging soil conditions.

Q: Can ductile iron pipes be used for irrigation systems?: Certainly, irrigation systems can utilize ductile iron pipes. These pipes possess exceptional strength and durability, rendering them appropriate for a wide range of uses, including irrigation. They exhibit resistance to corrosion and boast a lengthy lifespan, guaranteeing their ability to endure the challenging conditions frequently associated with irrigation systems. Moreover, ductile iron pipes possess a sleek inner surface, facilitating efficient water flow and minimizing friction loss. This renders them highly suitable for the transportation of water over extensive distances, thereby ensuring the thorough irrigation of crops or landscapes. In summary, ductile iron pipes represent a dependable and economically viable option for irrigation systems.

Q: How is ductile iron different from cast iron?: Ductile iron and cast iron are two types of iron alloys that differ in terms of their composition, properties, and applications. The main difference between ductile iron and cast iron lies in their microstructure and mechanical properties. Ductile iron, also known as nodular cast iron or spheroidal graphite iron, is a type of cast iron that undergoes an additional treatment process to enhance its strength and ductility. This is achieved by adding small amounts of magnesium to the molten iron during the casting process, which results in the formation of graphite nodules throughout the material. These graphite nodules act as stress raisers and prevent the propagation of cracks, making ductile iron more resistant to fractures and providing it with improved ductility compared to cast iron. In contrast, cast iron is a type of iron alloy that contains a higher carbon content than ductile iron. This higher carbon content leads to the formation of graphite flakes within the material, giving cast iron its characteristic brittle nature. Due to its brittleness, cast iron is more prone to cracking and less flexible than ductile iron. However, cast iron has excellent compressive strength and is highly resistant to wear and abrasion, making it suitable for applications where strength and durability are important, such as in engine blocks, pipes, and manhole covers. Another difference between ductile iron and cast iron is their machinability. Ductile iron is generally easier to machine due to its lower carbon content and the presence of graphite nodules, which act as lubricants during the cutting process. On the other hand, the presence of graphite flakes in cast iron can cause tool wear and result in poor surface finish during machining. In summary, ductile iron and cast iron differ in their microstructure, mechanical properties, and applications. Ductile iron offers improved ductility and resistance to fractures, making it suitable for applications requiring flexibility and impact resistance. Cast iron, with its higher carbon content and graphite flakes, provides excellent compressive strength and wear resistance, making it ideal for applications requiring strength and durability.

Q: What are the advantages and disadvantages of spheroidal graphite cast iron?: As a substitute for steel, man developed ductile iron in 1949. The carbon content of cast steel is less than 0.3%, while that of cast iron and ductile iron is at least 3%. The low carbon content in cast steels makes the carbon free of graphite free of structural flakes. The natural form of carbon in cast iron is the form of free graphite flakes. In ductile iron, the graphite flakes change into tiny spheres by special treatment. The improved sphere makes ductile iron more superior in physical properties than cast iron or steel. It is the globular microstructure of this kind of carbon that makes ductile iron more ductile and impact resistant, while the thin form of cast iron causes the cast iron to be free of ductility. The best ductility can be obtained by ferrite matrix.

Q: How is ductile iron pipe different from other types of pipes?: Ductile iron pipe is different from other types of pipes primarily due to its superior strength and durability. Unlike traditional cast iron pipes, which are more brittle and prone to cracking, ductile iron pipes are highly resistant to impact and can withstand higher pressure. Additionally, ductile iron pipes have the advantage of being more flexible and easier to install, making them a preferred choice for various applications such as water and sewage systems.

Q: Can ductile iron pipe be used for stormwater management systems?: Yes, ductile iron pipe can be used for stormwater management systems. Ductile iron pipe is known for its strength, durability, and ability to withstand external loads and harsh environmental conditions, making it suitable for carrying stormwater and managing drainage systems effectively.

Q: Are ductile iron pipes resistant to freeze-thaw cycles?: Ductile iron pipes exhibit resistance against freeze-thaw cycles. Ductile iron, a variant of cast iron, is fortified with magnesium, which enhances its strength, durability, and ability to resist cracking. These improved material properties enable ductile iron pipes to withstand the expansion and contraction that occur during freeze-thaw cycles. Unlike PVC or concrete, which may fracture or shatter due to the pressure exerted by freezing water, ductile iron pipes remain intact without suffering substantial damage. Moreover, the smooth interior surface of ductile iron pipes prevents the accumulation of ice or frost, thereby augmenting their resistance to freeze-thaw cycles. In conclusion, ductile iron pipes are an optimal choice for water distribution systems in cold climates, as they provide exceptional resistance against the adverse effects of freezing and thawing.

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