DUCTILE IRON PIPE DN1200 K8/C

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Loading Port:: China Main Port

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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: What is the internal lining used in ductile iron pipes?: The internal lining used in ductile iron pipes is typically a cement mortar lining.

Q: Are ductile iron pipes susceptible to external loading or pressure?: Yes, ductile iron pipes are susceptible to external loading or pressure. Like any other material, ductile iron pipes have a certain amount of strength and tolerance to withstand external forces. However, excessive external loading or pressure can cause deformation or failure of the pipes. It is important to ensure that ductile iron pipes are installed and supported properly to prevent any damage due to external loading. Additionally, the design and engineering of the pipeline system should take into consideration the anticipated external loading and pressure to ensure the pipes can effectively handle the expected conditions. Regular inspections and maintenance are also crucial to identify and address any issues related to external loading or pressure that may arise over time.

Q: Can ductile iron pipes be used in areas with high levels of hydrogen sulfide gas and corrosion potential?: Before making a decision, it is important to take certain factors into consideration when considering the use of ductile iron pipes in areas with high levels of hydrogen sulfide gas and corrosion potential. Ductile iron pipes display a strong resistance to corrosion, particularly when they are adequately protected with external coatings and linings. This characteristic makes them appropriate for environments with moderate levels of hydrogen sulfide gas and corrosion potential. Nevertheless, in areas with exceedingly high levels of hydrogen sulfide gas and severe corrosion potential, alternative materials such as corrosion-resistant alloys or specially coated pipes may be more suitable. To determine the suitability of ductile iron pipes, conducting a thorough evaluation of the specific conditions in the area is crucial. Factors such as the concentration of hydrogen sulfide gas, the presence of other corrosive elements or chemicals, and the overall corrosiveness of the environment should be taken into account. Furthermore, consulting the local regulations and industry standards is essential to ensure compliance and safety. In conclusion, while ductile iron pipes can withstand moderate levels of hydrogen sulfide gas and corrosion potential, it is necessary to conduct a comprehensive assessment of the specific conditions. In areas with high levels of hydrogen sulfide gas and severe corrosion potential, consulting with experts in the field and considering alternative materials may be required.

Q: Principles for the antiseptic treatment of ductile iron pipes: The principle that the antiseptic treatment of ductile iron pipes must be complied with is that.1. internal and external surface coating shall be kept clean, remove rust and impurities2. after coating on the inside and outside surface, the coating should be even and smooth, firm and firm, and shall not be abnormal because of climate change3. coating for water delivery should be insoluble in water, no peculiar smell, harmful impurities content

Q: How does ductile iron pipe perform in areas with high ground movement?: Ductile iron pipe performs exceptionally well in areas with high ground movement. Its unique properties and design make it highly resistant to deformation and damage caused by ground shifting, settling, or seismic activities. The ductility of the material allows it to withstand significant stress and strain without fracturing or breaking. Unlike rigid materials such as cast iron or PVC, ductile iron pipe has the ability to flex and absorb ground movement, which prevents catastrophic failures and ensures the integrity of the pipeline system. Additionally, ductile iron pipe is manufactured with a variety of joint configurations that further enhance its performance in areas with high ground movement. Flexible joints, such as restrained joints or mechanical joints, accommodate the movement by allowing limited rotation and translation, minimizing the potential for pipe separation or joint failure. Furthermore, the robust construction of ductile iron pipe, which includes a thick wall thickness and a high tensile strength, provides additional protection against ground movement. This strength helps the pipe withstand external loads and forces induced by the ground, preventing deformation and maintaining its structural integrity. In conclusion, ductile iron pipe is an ideal choice for areas with high ground movement due to its exceptional ductility, joint flexibility, and robust construction. Its ability to absorb ground movement without compromising the pipeline system's functionality or safety makes it a reliable and durable option in such challenging environments.

Q: What is the expected bending stress capacity of ductile iron pipes?: Ductile iron pipes exhibit varying expected bending stress capacities due to factors such as diameter, wall thickness, and the grade of ductile iron utilized. However, in general, ductile iron pipes possess superior bending stress capacities compared to alternative pipe materials. Ductile iron pipes are renowned for their remarkable tensile strength and flexibility, enabling them to endure substantial bending stresses. Determining the precise bending stress capacity involves comprehensive testing and analysis, taking into account the pipe's mechanical properties, dimensions, and maximum allowable deflection. It is crucial to evaluate the bending stress capacity of ductile iron pipes in accordance with established industry standards and guidelines. These may involve standards like the American Water Works Association (AWWA) C150 or the International Organization for Standardization (ISO) 2531, which outline specifications and testing methodologies for ductile iron pipes. Ultimately, the anticipated bending stress capacity of ductile iron pipes hinges upon various factors and necessitates an assessment tailored to the specific application requirements. It must consider industry standards and guidelines to ensure precise and dependable results.

Q: How do ductile iron pipes handle ground settlement near construction foundations?: Ductile iron pipes are known for their ability to handle ground settlement near construction foundations effectively. Due to their flexible nature, these pipes can withstand ground movement without experiencing severe damage or failure. When the ground settles near construction foundations, it can cause shifts in soil, which in turn can exert pressure on the surrounding infrastructure. Ductile iron pipes have the advantage of being able to absorb and distribute this pressure, minimizing the risk of pipe breakage or deformation. One key factor that contributes to the resilience of ductile iron pipes is their high tensile strength. This strength allows the pipes to maintain their structural integrity even under significant external forces. As a result, they can withstand ground settlement without experiencing fractures or cracks. Furthermore, ductile iron pipes also have a high degree of flexibility. This flexibility enables them to adapt to minor ground movements and accommodate shifts in soil without compromising their functionality. The pipes can bend slightly without breaking or causing leaks, ensuring continuous flow of fluids and preventing any disruptions to the construction project. In addition, ductile iron pipes are often installed with proper bedding and backfill materials. This ensures that the pipes have a stable and secure foundation, reducing the risk of movement and settlement. The use of these materials also helps distribute the load exerted on the pipes more evenly, further enhancing their ability to handle ground settlement. Overall, ductile iron pipes are an excellent choice for construction projects where ground settlement is a concern. Their strength, flexibility, and proper installation techniques allow them to effectively handle ground movement near construction foundations, providing reliable and long-lasting infrastructure.

Q: Are ductile iron pipes resistant to chloride-induced corrosion?: Yes, ductile iron pipes are resistant to chloride-induced corrosion. Ductile iron is a type of cast iron that has been treated with magnesium to make it more flexible and resistant to cracking. It has a ferritic microstructure which provides excellent resistance to corrosion caused by chlorides. Chloride-induced corrosion can occur when chloride ions in the water or soil come into contact with the metal surface, leading to the formation of corrosion products such as rust. However, the presence of magnesium in ductile iron forms a protective layer on the surface, preventing the chloride ions from reaching the metal and thus inhibiting corrosion. This makes ductile iron pipes suitable for a wide range of applications, including water supply and sewerage systems, where chloride exposure is common.

Q: Can ductile iron pipes be used for underground cable conduits?: Yes, ductile iron pipes can be used for underground cable conduits. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for various applications, including underground cable conduits. Their ability to withstand heavy loads and external pressures makes them a reliable choice for protecting and housing underground cables.

Q: Are ductile iron pipes suitable for use in oil refineries?: Yes, ductile iron pipes are suitable for use in oil refineries. Ductile iron is a type of cast iron that offers a unique combination of strength, durability, and flexibility, making it an excellent choice for various applications, including oil refineries. One of the key advantages of ductile iron pipes is their high tensile strength, allowing them to withstand the high pressure and stress commonly found in oil refining processes. This strength is crucial for the transportation of various fluids, including crude oil, refined petroleum products, and chemicals within the refinery. Additionally, ductile iron pipes have excellent corrosion resistance properties, making them highly resistant to the corrosive effects of oil, chemicals, and other substances typically present in oil refineries. This corrosion resistance ensures the longevity and reliability of the pipes, reducing the need for frequent maintenance and replacement. Furthermore, ductile iron pipes have exceptional ductility, which means they can absorb and withstand significant impacts and vibrations without fracturing or breaking. This quality is advantageous in oil refineries where there may be frequent movement or potential stressors due to machinery, equipment, or ground settlement. Moreover, ductile iron pipes have a smooth interior surface that reduces friction, allowing for efficient fluid flow and minimizing pressure loss. This characteristic is essential in oil refineries, as it helps optimize the transportation of fluids, ensuring a smooth and reliable production process. In conclusion, ductile iron pipes are suitable for use in oil refineries due to their high tensile strength, corrosion resistance, ductility, and smooth interior surface. These pipes provide a reliable and durable solution for transporting various fluids within the refinery, contributing to the efficient and safe operation of oil refining processes.

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