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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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 |
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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:
- Trenchless installation methods, such as horizontal directional drilling (HDD) or pipe bursting, are capable of utilizing ductile iron pipe. These techniques allow for the installation of underground utilities with minimal excavation and disturbance to the surrounding environment. Ductile iron pipe is particularly well-suited for these methods due to its inherent strength, durability, and flexibility. It can withstand the forces and stress associated with trenchless installation, including the pulling forces during HDD or the bursting forces during pipe bursting. Furthermore, ductile iron pipe's corrosion resistance eliminates the need for protective coatings when installed underground. Consequently, ductile iron pipe is a dependable choice for trenchless installation methods.
- Q:
- Yes, ductile iron pipes are highly suitable for industrial applications. Ductile iron is a strong and durable material that possesses excellent mechanical properties, making it ideal for handling high-pressure and heavy-duty applications. The pipes have a high tensile strength and can withstand extreme conditions, including high temperatures and corrosive environments. Furthermore, ductile iron pipes have superior resistance to cracking and fracturing, ensuring a longer lifespan and reduced maintenance costs. They are also highly resistant to external loads, making them suitable for underground installations and industrial settings where they may be subjected to heavy loads or vibrations. Moreover, ductile iron pipes have excellent flow characteristics due to their smooth interior surface, allowing for efficient fluid transportation in industrial systems. They also have good resistance to wear and abrasion, ensuring a consistent flow rate over time. Additionally, ductile iron pipes are versatile and can be used in various industrial applications such as water supply, wastewater treatment, industrial processes, and mining operations. They are available in a wide range of sizes to accommodate different requirements and can be easily connected using various jointing methods. Overall, ductile iron pipes offer the reliability, strength, and longevity required for industrial applications, making them a suitable choice for industries where durability and performance are crucial.
- Q:What are the risks in the process of conveying ductile iron pipes?
- Pile up: when the pipe is stacked, the lower part of the pipe should be covered with a tie or cushion block. The socket of the pipe is interlocked with each other, and the stop wedge must be put in place to prevent the pipe from rolling. Not allowed to be piled on marshes, rough slopes, or badly polluted areas.
- Q:
- High-temperature applications are generally not suitable for ductile iron pipes. Despite their strength and durability, ductile iron has limitations in high temperatures. Ductile iron pipes usually have a maximum operating temperature of around 250-300 degrees Fahrenheit (120-150 degrees Celsius). When subjected to higher temperatures, ductile iron pipes can undergo thermal expansion, potentially causing cracks or distortions. This can compromise the pipe's structural integrity, leading to leaks or failures. Additionally, ductile iron is vulnerable to oxidation at elevated temperatures, further deteriorating its performance over time. For high-temperature applications, it is generally advisable to opt for materials specifically designed for such conditions, like stainless steel or high-temperature alloys. These materials offer superior resistance against thermal expansion, oxidation, and other factors associated with high temperatures.
- Q:
- Yes, ductile iron pipes can be used for underground river crossings. Ductile iron pipes have excellent strength and durability, making them suitable for various applications, including underground river crossings. They have high tensile strength and are resistant to corrosion and external loads, making them an ideal choice for such installations.
- 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:
- Ductile iron pipe is typically installed using the trenchless method, which involves three main steps: preparation, installation, and backfilling. First, the trench is excavated and prepared with a proper foundation for the pipe. Then, the ductile iron pipe is carefully lowered into the trench using specialized equipment and joined together using mechanical joints or flanged connections. Finally, the trench is backfilled with suitable material and compacted to provide stability and support to the installed pipe.
- Q:
- In seismic zones, the typical joint restraint requirements for ductile iron pipes are designed to ensure the structural integrity and prevent displacement or separation of the pipes during seismic events. These requirements are crucial to maintain the reliability and functionality of the pipeline system. One common joint restraint requirement for ductile iron pipes in seismic zones is the use of flexible or mechanical joint systems. Flexible joints, such as rubber gasket joints, can absorb and accommodate the movement caused by seismic activity. These joints allow for axial movement, angular deflection, and expansion/contraction of the pipes, reducing the risk of pipe failure or damage. Another important requirement is the use of adequate anchoring systems. This involves securing the pipes to the surrounding structures or embedding them in concrete thrust blocks to prevent excessive movement or displacement during seismic events. Anchoring systems help distribute the forces generated by the earthquake and minimize the risk of pipe separation or breaking. Additionally, seismic design standards often require the use of seismic restraints, such as seismic joint restraints or bracing systems, to further enhance the stability and integrity of the ductile iron pipes. These restraints are designed to limit the movement of the pipes in specific directions, reducing the potential for damage and maintaining the overall system performance. It is important to note that the specific joint restraint requirements for ductile iron pipes in seismic zones may vary depending on local building codes, seismic activity levels, and engineering considerations. It is crucial to consult the relevant regulations and work with experienced professionals in the design and installation process to ensure compliance with the necessary requirements for seismic resistance.
- Q:
- Various methods and protective coatings are utilized to protect ductile iron pipes against abrasion or wear. One commonly employed method involves the application of cement mortar lining on the inner surface of the pipe. This creates a smooth and durable layer that effectively resists the damaging effects of flowing water and other substances passing through the pipe. Furthermore, external protection for ductile iron pipes can be achieved by applying a bituminous or epoxy coating. These coatings act as a barrier, safeguarding against external factors like soil or chemicals that may lead to wear or corrosion. By serving as a protective layer, they prevent direct contact between the iron pipe and the surrounding environment. Moreover, in areas where severe abrasion or wear conditions are prevalent, special linings or coatings can be applied. Polyethylene encasement or polyurethane lining can be utilized to provide enhanced protection against abrasion, especially in regions where the pipe is exposed to high turbulence or abrasive materials. In certain cases, ductile iron pipes can also be reinforced with additional materials such as fiberglass or steel wire to increase their resistance to abrasion or wear. These reinforcements offer an extra layer of protection, strengthening the pipe and reducing the likelihood of damage. Overall, ductile iron pipes are designed with a combination of protective measures to ensure their durability and resistance to abrasion or wear. These measures encompass cement mortar linings, protective coatings, special linings or coatings for severe conditions, and reinforcements. These protective methods play a crucial role in prolonging the lifespan of the pipes and maintaining their functionality even in challenging environments.
- Q:Ways of connecting ductile iron pipes
- In our country, the national standards stipulated annealing, centrifugal casting, water delivery with ductile iron, straight pipe, pipe fittings, aprons and other technical requirements, China's production of ductile iron pipe products must meet the current national standards.
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