• Ductile Iron Pipe Pull Strength:420 ISO2531 DN500-DN800 System 1
  • Ductile Iron Pipe Pull Strength:420 ISO2531 DN500-DN800 System 2
Ductile Iron Pipe Pull Strength:420 ISO2531 DN500-DN800

Ductile Iron Pipe Pull Strength:420 ISO2531 DN500-DN800

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Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
1000 m.t.
Supply Capability:
200000 m.t./month

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1.Ductile Iron Pipe Description :
1) Pipes confirm to ISO2531,K9 class,T type joint,6m long,with inside cements lining conform to ISO4179,  outside Zinc 
spraying(130g/m2) and bitumen coating(70μm) conform to ISO8179.
2) Pipe ends: Spigot and socket ends, with 100% SBR rubber gaskets accoding to ISO4633
3) we can do third party inspection according to customer's request.
4) Our products have been sold to many international market, such as Middle East and South East Asia and Africa.

2.Main Features of the Ductile Iron Pipe:
1).Quality guarantee
•  Chemical checking
•  NDE after rough machining
•  Mechanical testing after heat treatment
•  Final NDE,dimension inspected
2).Service
•  Drawing: we can translate your original drawing, offer best suggestion on design
•  Quality: we have full set quality control system to guarantee the best quality.
•  Inspection: inspect in house, all our products must be checked 3 times before packing
3.Ductile Iron Pipe Images:

4.Ductile Iron Pipe Specification:

Surface Finishes: Bare, Oiled, Mill Varnish, Galv,FBE, FBE Dual, 3LPE, 3LPP, Coal Tar,Concrete Coating and Tape Wrap
End Finishes: Beveled, Square Cut, Threaded, hat
Additional Services: Internal Coating
Packaging: packed in bag, plastic bag, steel strip, steel wire,double wire, iron box, wooden box, tarpaulin, plastic 
sheeting
Inspection: MOODY SGS BV GL DNV ABS LIOYD’S
Test: X-ray, UT, magnetic particle,inspection,hydrostatic test.
Processing service: Beveling, Threading, Slotting, Cut-to length, Bends, Quench and Temper, Fabrication, Double-jointing 
and On-site assistance
Documentary: MTC, material certification,Origin certification, CI or PI,Test Report, export licence, handling order, 
B/L,insurance policy,shipping instructions, contract, packing list etc. 

5.FAQ:
We have organized several common questions for our clients,may help you sincerely:
1.Q: Why would you choose ductile iron pipe rather than other pipe materials?
 A:The reasons are obvious for that not only ductile iron pipe possesses the inherent strength and flexibility of ductile 
iron, combined with proven corrosion protection systems, but also the cost savings can be achieved from design to 
installation and commissioning.
 2.Q:Why can you guarantee the inner of pipes can’t be corroded?
 A: High alumina cement mortar lining and sulphate-resistant cement mortar lining. These two special linings are applicable 
to inner anti-corrosion for sewage pipes, improving resistance to erosion of the sewage components.

Q: Ductile iron pipe joint damage, water leakage, want to see the connection with other pipe fittings, how to operate?!
The ductile iron pipe can be used as the plugging device for the big part
Q: Are ductile iron pipes resistant to acid attacks?
Yes, ductile iron pipes are generally resistant to acid attacks. Ductile iron is a type of cast iron that has been treated with magnesium to improve its strength and ductility. This treatment creates a more resistant material that can withstand corrosive environments, including acids. However, it is important to note that the level of resistance may vary depending on the specific acid and concentration involved. In highly corrosive environments, such as those with strong acids or high concentrations, additional protective measures such as lining or coating the pipes may be necessary. Additionally, regular inspection and maintenance are also important to ensure the long-term durability and resistance of ductile iron pipes.
Q: Will the cast iron pipes rust?
Qualified ductile iron pipes can be used for more than a hundred years. The main place where rust is easily exposed is where the outer wall meets the soil because of its high humidity and high oxygen content. Qualified anticorrosion can effectively resist rust, its process principle can not give you the details. Although the wall has a long flow of water, but oxygen scarce, compared with the outer wall is not easy to corrosion, but there is cement lining is necessary.
Q: What is the expected pressure rating of ductile iron pipes?
The expected pressure rating of ductile iron pipes can vary depending on various factors such as pipe diameter, wall thickness, and type of joint used for installation. However, generally speaking, ductile iron pipes are known for their high strength and durability, allowing them to withstand high pressure levels. In most cases, ductile iron pipes are designed and manufactured to meet or exceed the requirements of industry standards such as the American Water Works Association (AWWA) C151 or C115/A21.15. These standards specify the minimum pressure rating for ductile iron pipes, which typically range from 150 to 350 psi (pounds per square inch) for water transmission applications. It is important to note that the pressure rating also depends on the class of the pipe, which refers to the thickness of the pipe's wall. Typically, ductile iron pipes are available in different classes such as Class 50, Class 51, Class 52, etc. Each class has its own pressure rating, with higher classes offering greater strength and resistance to pressure. It is recommended to consult the manufacturer's specifications and guidelines for the specific ductile iron pipes being used to determine the exact pressure rating. It is also essential to consider other factors such as pipe support, installation methods, and operating conditions to ensure the safe and efficient operation of the ductile iron pipe system.
Q: Can ductile iron pipes be used for both water and sewage systems?
Yes, ductile iron pipes can be used for both water and sewage systems. Ductile iron pipes are known for their high strength and durability, making them suitable for a wide range of applications, including water supply and sewage systems. These pipes have a high resistance to corrosion, making them ideal for carrying both clean water and sewage. Additionally, ductile iron pipes have excellent mechanical properties, allowing them to withstand the high pressure and stress that can be present in water and sewage systems. Therefore, ductile iron pipes are a reliable and versatile choice for both water and sewage systems.
Q: How are ductile iron pipes different from PVC pipes?
Ductile iron pipes are made from a type of iron that has a higher strength and durability compared to PVC pipes, which are made from a type of plastic. Ductile iron pipes are more suitable for high-pressure and underground applications due to their superior strength, while PVC pipes are commonly used for low-pressure and aboveground applications. Additionally, ductile iron pipes have a longer lifespan and can withstand higher temperatures, making them more suitable for a wide range of environments.
Q: What does ductile iron pipe "K" mean?
1 、 pipe fittings are K type, T type, etc.;2 wall thickness registration symbol. For example, according to the pipe quality standards GB/T13295-K9, which is the wall thickness ofK=9* (DN/1000+0.5)
Q: Are ductile iron pipes available for cutting and are there any relevant specifications?
Can be cut, the specification is based on the original specification, just for some engineering needs
Q: What is the expected sound attenuation of ductile iron pipes?
Several factors can affect the expected sound attenuation of ductile iron pipes. Generally, these pipes have good sound attenuation properties due to their dense construction and thick walls. The density of the material helps absorb and dampen sound waves, reducing noise transmission. Additionally, the thickness of the pipe walls adds an extra barrier for sound to pass through, contributing to sound attenuation. However, it's important to consider other factors that can influence the specific sound attenuation of ductile iron pipes. These factors include pipe diameter, wall thickness, installation method, and the surrounding environment. For example, larger diameter pipes may have slightly lower sound attenuation compared to smaller diameter pipes due to their increased surface area. Additionally, variations in wall thickness can affect the sound insulation properties. During installation, the presence of joints or fittings in the pipeline can create points where sound can transmit, reducing sound attenuation. Therefore, it is recommended to use proper installation techniques that minimize the use of joints and fittings to enhance sound attenuation. The surrounding environment also plays a role in sound attenuation. For instance, if the pipes are buried in soil, the composition and density of the soil can affect sound transmission properties. Moreover, the presence of other structures or materials nearby may influence the overall sound attenuation performance. To determine the specific expected sound attenuation of ductile iron pipes for a particular application, it is advisable to consult manufacturer specifications or seek assistance from acoustic engineering professionals. They can consider all relevant factors and conduct specific tests or simulations to provide accurate predictions.
Q: How does ductile iron pipe handle thermal expansion and contraction?
Ductile iron pipe is well-known for its ability to handle thermal expansion and contraction effectively. This is primarily due to its unique material properties and design characteristics. Firstly, ductile iron pipe has a high coefficient of linear expansion, which means it expands and contracts relatively more compared to other materials when subjected to temperature changes. This property allows the pipe to accommodate thermal expansion and contraction without causing excessive stress or deformation. Additionally, ductile iron pipes are designed with flexible joints that can absorb the movement caused by thermal expansion and contraction. These joints, such as push-on or mechanical joints, provide a certain level of flexibility and allow the pipe to expand and contract within a specific range without compromising its structural integrity. Furthermore, the material composition of ductile iron itself contributes to its ability to handle thermal expansion and contraction. Ductile iron is a type of cast iron alloy that contains nodular graphite in its microstructure, providing it with enhanced ductility and tensile strength. This inherent ductility enables the pipe to withstand the stresses induced by thermal expansion and contraction without fracturing or breaking. Overall, ductile iron pipe is designed and manufactured to effectively handle thermal expansion and contraction. Its high coefficient of linear expansion, flexible joints, and ductile material properties all work together to ensure that the pipe can accommodate temperature changes without causing any significant issues or structural failures.

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