T Type Ductile Iron Pipe DN400 socket spigot pipe

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25

Supply Capability:: 30000 /month

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Ductile Iron Pipes of China on Chip Price DN400 EN545/EN598/ISO2531

Specification:

1) The standard of pipe: ISO2531:1998, EN545:2006，K9 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: It's not easy to drill ductile iron with cobalt high speed steel bit. Please help to point it out: The material can be annealed and the process is simple, that is, heating the workpiece and cooling it naturally. In this way, the hardness of the workpiece can be reduced.

Q: Can ductile iron pipes be used in areas with high soil acidity?: To ensure the durability and performance of ductile iron pipes in areas with high soil acidity, certain precautions should be taken. Ductile iron pipes are renowned for their strength, durability, and resistance to corrosion, making them suitable for various soil conditions, including those with high acidity. However, the presence of high soil acidity can still pose a potential risk to ductile iron pipes over time. Acidic soils can accelerate the corrosion process, leading to the degradation of the pipe material. To mitigate this risk, the following measures can be implemented: 1. Protective Coatings: Applying protective coatings, such as epoxy or polyethylene, to the outer surface of the pipes adds an extra layer of defense against soil acidity. These coatings act as a barrier, preventing direct contact between the pipe and the corrosive soil. 2. pH Adjustment: Adjusting the pH levels of the soil can help reduce its acidity. This can be achieved by incorporating lime or other neutralizing agents into the soil, creating a more favorable environment for the ductile iron pipes. 3. Cathodic Protection: Employing cathodic protection systems is an effective method to prevent corrosion in ductile iron pipes. This technique involves utilizing sacrificial anodes or impressed current systems to generate a protective electrical current that counteracts the corrosive effects of the soil. 4. Regular Inspections: Conducting periodic inspections is crucial to monitor the condition of the ductile iron pipes in high soil acidity areas. This enables early detection of any corrosion or degradation, facilitating timely repairs or replacements. By implementing these measures, ductile iron pipes can be effectively utilized in areas with high soil acidity, guaranteeing long-term performance and minimizing the risks associated with corrosive soils. However, it is advisable to consult experts or engineers familiar with local soil conditions and project requirements to determine the most suitable materials and protective measures.

Q: What is the relationship between the installation direction of the ductile iron pipe and the direction of flow?: The ductile iron pipe is installed in the direction of the current.

Q: Can ductile iron pipes be used in seismic zones?: Yes, ductile iron pipes can be used in seismic zones. Ductile iron pipes are known for their high strength and flexibility, which allows them to withstand ground movement and seismic activities. They have the ability to absorb and distribute the forces generated during an earthquake, reducing the risk of pipe failure or damage. Additionally, ductile iron pipes have been used successfully in seismic zones for many years, and their performance has been proven through various tests and evaluations. However, it is important to follow the appropriate design and installation guidelines to ensure the proper functioning and safety of ductile iron pipes in seismic zones.

Q: Can ductile iron pipe be used for wastewater treatment plants?: Yes, ductile iron pipe can be used for wastewater treatment plants. Ductile iron pipe is a strong and durable material that is resistant to corrosion and abrasion. It is commonly used in wastewater treatment plants due to its ability to handle the harsh and corrosive environment often found in these facilities. Ductile iron pipe is also known for its excellent hydraulic performance, making it suitable for transporting wastewater efficiently and effectively. Additionally, the ease of installation and maintenance of ductile iron pipe make it a practical choice for wastewater treatment plants. Overall, ductile iron pipe is a reliable and cost-effective option for wastewater treatment applications.

Q: Are ductile iron pipes suitable for use in acidic environments?: Ductile iron pipes are generally not suitable for use in highly acidic environments. While ductile iron is known for its strength and durability, it does have limitations when it comes to acidic conditions. Acidic environments tend to corrode and degrade ductile iron pipes over time. In acidic conditions, the acid can react with the iron in the pipe, causing corrosion and ultimately leading to pipe failure. The rate of corrosion depends on various factors such as the concentration and type of acid, temperature, and the duration of exposure. Acidic environments with pH levels below 4 or 5 can significantly accelerate the corrosion process. To overcome this limitation, other materials like stainless steel or corrosion-resistant alloys such as PVC or HDPE (high-density polyethylene) pipes are often recommended for use in acidic environments. These materials have better resistance to corrosion and can withstand the harsh conditions associated with acidic environments. However, if ductile iron pipes are used in mildly acidic conditions or if measures are taken to protect them from corrosion, they may still be suitable. Applying protective coatings or linings to the pipes can help minimize the corrosive effects of acids. It is essential to consult with experts or engineers familiar with the specific conditions and requirements of the project to determine the most suitable material for use in acidic environments.

Q: What is the expected external coating for ductile iron pipes?: The expected external coating for ductile iron pipes is typically a protective layer that is applied to the exterior surface of the pipe to prevent corrosion and extend its lifespan. Some common types of external coatings for ductile iron pipes include polyethylene, polyurethane, and epoxy coatings. These coatings provide a barrier between the pipe and the surrounding environment, preventing the pipe from coming into contact with corrosive substances such as soil, water, and chemicals. The choice of coating depends on factors such as the intended application, soil conditions, and the level of corrosion protection required. Overall, the expected external coating for ductile iron pipes is designed to ensure the longevity and durability of the pipes in various environmental conditions.

Q: Are ductile iron pipes suitable for wastewater treatment plants?: Yes, ductile iron pipes are suitable for wastewater treatment plants. Ductile iron is a strong and durable material that is resistant to corrosion, making it an ideal choice for handling wastewater, which can contain various corrosive elements. Additionally, ductile iron pipes have high tensile strength and can withstand high pressure, which is necessary for transporting wastewater in a treatment plant. The flexibility of ductile iron pipes also allows for easy installation and maintenance, reducing the overall cost and time required for a wastewater treatment plant. Overall, ductile iron pipes are widely used in wastewater treatment plants due to their durability, corrosion resistance, and ability to handle the demanding conditions present in such facilities.

Q: Are ductile iron pipes suitable for sewage treatment plants?: Yes, ductile iron pipes are suitable for sewage treatment plants. Ductile iron pipes are known for their durability, strength, and corrosion resistance, making them ideal for handling the corrosive and abrasive nature of sewage. They can withstand high pressure and are capable of accommodating heavy loads and ground movements, making them a reliable choice for sewage treatment facilities. Additionally, their smooth interior surface minimizes friction, reducing the risk of clogs and improving the flow of wastewater.

Q: What is the typical lifespan of ductile iron pipes?: The typical lifespan of ductile iron pipes can vary depending on various factors such as the quality of the pipes, the environmental conditions, and the maintenance practices. However, on average, ductile iron pipes have a lifespan of around 75 to 100 years. This makes them a durable and long-lasting option for water and sewage transportation systems. With proper installation and regular maintenance, these pipes can withstand corrosion, pressure, and other external factors, ensuring their longevity and reliability. Additionally, advancements in coatings and linings have further enhanced the lifespan of ductile iron pipes, making them an excellent choice for infrastructural projects.

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