T Type Ductile Iron Pipe DN500

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 20 m.t.

Supply Capability:: -

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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.

With good finish, high corrosion resistance and pressure-withstanding capacity.

Q: What are the different methods for joining ductile iron pipe?: There are several methods for joining ductile iron pipe, each with its own advantages and limitations. One common method is mechanical joint (MJ) coupling, which involves using a rubber gasket and a set of bolts and nuts to create a watertight seal between pipe sections. This method is relatively quick and easy to install, but it requires a skilled technician to ensure proper alignment and bolt tightening to prevent leakage. Another method is flanged joint, where the pipe ends are equipped with flanges that are bolted together using gaskets to create a tight seal. This method allows for easy disassembly and reassembly of pipe sections, making it suitable for applications that require frequent maintenance or modifications. However, it is more expensive and time-consuming compared to other methods. One widely used method is push-on joint (POJ), which involves using a rubber gasket and a special lubricant to slide the pipe ends together. This method provides a reliable and watertight seal, and it is relatively quick and easy to install. However, it requires proper alignment and care to avoid damaging the gasket during assembly. Another option is restrained joint (RJ), which uses a mechanical joint coupling with additional features to resist axial forces or thrusts. This method is commonly used in applications where the pipe is subject to internal pressure, external loads, or seismic activity. It provides a secure and rigid connection but may require specialized tools and training for installation. Finally, welding is another method for joining ductile iron pipe. It involves heating the pipe ends and melting a filler metal to create a permanent bond. This method provides a strong and durable connection, but it requires skilled welders and additional time for preparation, welding, and cooling. Welding is often used for specific applications, such as joining sections of pipe with different diameters or connecting to other materials. In summary, the different methods for joining ductile iron pipe include mechanical joint coupling, flanged joint, push-on joint, restrained joint, and welding. The choice of method depends on factors such as the application requirements, installation time, maintenance needs, and budget.

Q: Can ductile iron pipe be used for both water and sewage applications?: Yes, ductile iron pipe can be used for both water and sewage applications. It is a durable and versatile material that is resistant to corrosion and can handle the pressure and flow requirements of both water and sewage systems.

Q: Are ductile iron pipes suitable for use in irrigation canals?: Ductile iron pipes excel in irrigation canals due to their robustness and endurance. Their exceptional strength and durability make them an optimal selection for water transportation in irrigation systems. With remarkable tensile strength, they withstand the demanding loads and pressures regularly encountered in irrigation canals. Moreover, their remarkable corrosion resistance makes them an ideal fit for environments with varying water quality. Additionally, they possess resistance against UV rays and extreme weather conditions, guaranteeing their long lifespan within irrigation canal systems. Additionally, ductile iron pipes efficiently handle high flow rates, enabling efficient water transportation over extensive distances, ensuring effective irrigation. In summary, ductile iron pipes offer an array of advantages and are a trustworthy and fitting option for usage in irrigation canals.

Q: Are ductile iron pipes resistant to alkali attacks?: Ductile iron pipes have been proven to be highly resistant to alkali attacks. The material used in ductile iron pipes, known as ductile cast iron, is formulated with specific chemical compositions that provide exceptional corrosion resistance. This resistance extends to alkali attacks, which are chemical reactions that occur when alkaline substances come into contact with metals or other materials. Ductile iron pipes have a dense and protective oxide film on their inner and outer surfaces, which acts as a barrier against chemical attacks. This oxide film forms naturally over time, and its composition and structure provide excellent resistance to alkali attacks. Additionally, ductile iron pipes are often coated with various protective layers, such as epoxy or zinc, to further enhance their resistance to corrosion and chemical reactions. It is important to note that while ductile iron pipes are highly resistant to alkali attacks, the severity and concentration of the alkali substances can still impact their overall performance. In extreme cases, very high concentrations of alkali substances or prolonged exposure to aggressive alkaline environments may eventually cause some damage to the protective layers of the pipes. However, under normal conditions and within acceptable parameters, ductile iron pipes are considered to have excellent resistance to alkali attacks.

Q: How are ductile iron pipes protected against internal scaling or buildup?: Ductile iron pipes are protected against internal scaling or buildup through the use of various coatings and linings. One commonly used method is cement mortar lining, where a layer of cement mortar is applied to the inner surface of the pipe to prevent scaling and corrosion. Additionally, epoxy coatings are also utilized, which provide a smooth and protective layer that inhibits the formation of scale and buildup. These protective measures help to ensure the longevity and efficiency of ductile iron pipes in various applications.

Q: What is the expected joint restraint method for ductile iron pipes?: The expected joint restraint method for ductile iron pipes is typically mechanical joints or push-on joints. These joints provide a secure and leak-free connection between the pipes, ensuring the stability and integrity of the pipeline system. Mechanical joints involve the use of rubber gaskets and bolts to tightly seal the joint, while push-on joints utilize a groove and rubber gasket system to create a watertight seal. Both methods offer excellent joint restraint capabilities, allowing for the effective transmission of fluids or gases through the pipeline without the risk of joint separation or failure. Additionally, these joint restraint methods also facilitate ease of installation and maintenance, making them a preferred choice for ductile iron pipe systems.

Q: Can ductile iron pipe be used for chemical processing plant applications?: Yes, ductile iron pipe can be used for chemical processing plant applications. It is durable, corrosion-resistant, and has high tensile strength, making it suitable for transporting various chemicals and fluids in such environments. Additionally, its flexibility and ease of installation make it a practical choice for piping systems in chemical processing plants.

Q: DN300 what's the price of the ductile iron pipe / the weight and the price of one meter?: Graphite is exist in spherical form, usually graphite size is 6-7, casting spheroidization grade control requirements for 1-3 quality (spheroidization rate greater than 80%), so the mechanical properties of the material itself has been improved, has the essence of iron, steel performance.

Q: What are the recommended bedding and backfill materials for ductile iron pipe?: The recommended bedding and backfill materials for ductile iron pipe typically include a layer of granular material, such as sand or pea gravel, for bedding and a layer of compacted soil or select backfill material for backfilling. This helps to distribute load and protect the pipe from external forces while maintaining stability and preventing damage.