ductile iron pipeDN450 K8 SOCKET SPIGOT PIPE

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t

Supply Capability:: 30000 m.t/month

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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: How does ductile iron pipe perform in seismic conditions?: Seismic conditions are where ductile iron pipe truly shines. This type of pipe has gained a reputation for its outstanding performance in such situations, making it the go-to choice for underground water and wastewater systems, particularly in earthquake-prone areas. The remarkable strength and flexibility of ductile iron pipe make it highly resistant to seismic forces. It can withstand the ground movements and vibrations caused by earthquakes without suffering significant damage or failure. The secret lies in its unique composition, which consists of a high iron content combined with small amounts of carbon and other alloying elements. The crucial advantage of ductile iron pipe in seismic conditions is its ability to absorb and dissipate seismic energy through its inherent flexibility. When the ground shifts during an earthquake, the pipe can adapt and deform slightly to accommodate the movement. This minimizes stress concentrations and reduces the risk of fractures. Furthermore, the joint integrity of ductile iron pipe is exceptional, a vital characteristic in seismic conditions. The joints are designed to offer maximum strength and resistance against external forces, including seismic activity. Different joint types, such as push-on, mechanical, and restrained joints, are available to suit various seismic requirements and installation conditions. Not only does ductile iron pipe possess impressive mechanical properties, but it also offers long-term corrosion resistance. Typically, the pipe is lined with a cement mortar or a protective coating, acting as a barrier against corrosive elements present in the soil or water. This corrosion resistance ensures the pipe's structural integrity and longevity, even in regions with high seismic activity. Overall, ductile iron pipe has a proven track record of exceptional performance in seismic conditions. Its strength, flexibility, joint integrity, and corrosion resistance make it a reliable choice for underground infrastructure, providing secure and efficient water and wastewater systems in areas prone to earthquakes.

Q: Are ductile iron pipes suitable for use in paper mills?: Yes, ductile iron pipes are suitable for use in paper mills. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them ideal for handling various fluids, including those used in paper mills. Additionally, their ability to withstand high pressures and temperatures makes them reliable and long-lasting in the demanding operating conditions of a paper mill.

Q: The difference between cast iron pipe and ductile iron pipe: Ductile iron is based on the cast iron to change some of the characteristics of the structure of iron, so that it has become a lot of toughness, than the cast iron pipe is too brittle shortcomings much better, the tensile strength of the pipe bending strength greatly improved. The sealing material used in the socket interface is rubber ring.

Q: Can ductile iron pipes be used for irrigation of sports fields?: Indeed, ductile iron pipes are suitable for the irrigation of sports fields. Renowned for their robustness, longevity, and flexibility, these pipes are an excellent choice for a range of applications, including irrigation. With their ability to withstand external pressures and impacts, ductile iron pipes are particularly advantageous for sports fields that encounter heavy foot traffic and potential damage. Moreover, these pipes exhibit exceptional resistance to corrosion, guaranteeing enduring performance and minimal upkeep. The pipes' smooth interior surface also facilitates efficient water flow, preventing obstructions and ensuring adequate irrigation for the sports fields. All in all, ductile iron pipes represent a dependable and appropriate option for irrigation systems in sports fields.

Q: What are the different types of joints used with ductile iron pipe?: There are several different types of joints that can be used with ductile iron pipe. These joints are designed to provide a secure and watertight connection between sections of pipe. Some of the most common types of joints used with ductile iron pipe include: 1. Mechanical Joint: This is the most commonly used joint for ductile iron pipe. It consists of a gland and a follower which are tightened using bolts and nuts to provide a tight seal. Mechanical joints are flexible and can accommodate slight misalignments. 2. Push-On Joint: This type of joint does not require any bolts or nuts. It is designed to be easily assembled by simply pushing the pipe sections together. A rubber gasket is used to provide a watertight seal. 3. Restrained Joint: Restrained joints are specifically designed for applications where pipe movement needs to be limited. These joints typically include a mechanical joint with additional features such as thrust collars or tie rods to prevent axial movement. 4. Flanged Joint: Flanged joints are commonly used for larger diameter pipes. The pipe ends are flanged and then bolted together, with a gasket placed in between to create a leak-proof connection. Flanged joints are typically used in applications where frequent disassembly and reassembly may be required. 5. Welded Joint: In some cases, ductile iron pipe sections may be welded together using a fusion welding process. This creates a permanent and strong joint. Welded joints are commonly used in high-pressure applications where a reliable and durable connection is required. It is important to note that the choice of joint type will depend on the specific requirements of the project, such as the pipe diameter, pressure rating, and the nature of the fluid being transported. Additionally, local regulations and standards may also dictate the type of joint that should be used in certain applications.

Q: DN1800 can the length of ductile iron pipes be several meters? What is the total weight?: Ductile cast iron pipe after annealing, the microstructure is ferrite and pearlite, good mechanical properties, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc..

Q: Can ductile iron pipes be used for conveying gases?: Yes, ductile iron pipes can be used for conveying gases. Ductile iron is a strong and durable material that can withstand high pressure and temperature variations, making it suitable for transporting gases. Additionally, ductile iron pipes have excellent corrosion resistance, which is important when dealing with potentially corrosive gases. However, it is crucial to ensure that the specific type of gas being conveyed is compatible with ductile iron to prevent any chemical reactions or damage to the pipes. Proper engineering design and material selection should be considered to ensure the safe and efficient conveyance of gases through ductile iron pipes.

Q: Will nodular cast iron pipes rust?: Ductile iron pipe corrosion process is good, decided whether it will rust. Whether it will rust or not, the key is whether the anti-corrosion process of the nodular cast iron pipe is in place.

Q: Can centrifugal cast iron pipe be galvanized or coated with asphalt which is good for corrosion prevention?: The centrifugal ductile iron pipe has the advantages of zinc coating and asphalt coating, and it is used in combination with two. By spraying zinc and epoxy coal tar coating of ductile iron pipe wall (or epoxy resin paint, polyurethane, etc.) wall using Portland cement (or epoxy powder, epoxy, polyurethane, ceramics etc.) wall coating can effectively active substances in soil and the formation of an insoluble zinc salt protection tube, the internal coating can inhibit corrosion of pipe body fluid medium.

Q: Do ductile iron pipes require external protection against stray electrical currents?: Yes, ductile iron pipes do require external protection against stray electrical currents. This is necessary to prevent corrosion and ensure the longevity of the pipes.

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