DUCTILE IRON PIPE DN200

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Payment Terms:: TT OR LC

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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 areas with high soil settlement?: Ductile iron pipes perform well in areas with high soil settlement due to their inherent strength and flexibility. Their ability to withstand soil movement and settlement helps prevent pipe damage or failure. Additionally, ductile iron pipes are designed with joints that allow for some movement, further reducing the risk of cracks or breaks. Overall, ductile iron pipes are a reliable choice for areas prone to high soil settlement.

Q: Are ductile iron pipes suitable for use in cold climates?: Yes, ductile iron pipes are suitable for use in cold climates. Ductile iron possesses excellent resistance to low temperatures, making it highly suitable for use in freezing conditions. Its high durability and strength enable it to withstand extreme temperatures and harsh weather conditions commonly found in cold climates.

Q: Can ductile iron pipes be used for agricultural applications?: Yes, ductile iron pipes can be used for agricultural applications. Ductile iron pipes are known for their durability, strength, and corrosion resistance, making them suitable for various agricultural applications such as irrigation systems, water supply networks, and drainage systems.

Q: Does the cast iron pipe need separate corrosion protection?: Ductile iron is characterized by its ease of decay and deformation, so if it is not a particular requirement, there is no need to do it alone

Q: Can ductile iron pipes be used in gravity sewer systems?: Ductile iron pipes find great utility in gravity sewer systems. Renowned for their robustness and durability, they are extensively employed in diverse applications, including sewer systems. Boasting exceptional corrosion resistance, they can withstand immense pressure and heavy burdens. Moreover, their flawlessly smooth interior surface curtails friction and enhances the transportation of waste and wastewater. Consequently, they emerge as an ideal option for gravity sewer systems, where the seamless flow of sewage hinges upon gravity to traverse the pipes.

Q: Are ductile iron pipes suitable for wastewater systems?: Yes, ductile iron pipes are suitable for wastewater systems. They have high strength, durability, and corrosion resistance, making them ideal for handling the demanding conditions and harsh environment typically found in wastewater systems. Additionally, ductile iron pipes have good joint integrity, which ensures leak-free connections and minimizes maintenance requirements in wastewater applications.

Q: How do ductile iron pipes perform in high-temperature steam applications?: Ductile iron pipes are known for their exceptional performance in high-temperature steam applications. They have the ability to withstand elevated temperatures and maintain their structural integrity, making them highly suitable for use in steam distribution systems. One key advantage of ductile iron pipes in high-temperature steam applications is their excellent thermal conductivity. This property allows for efficient heat transfer, ensuring that the steam is delivered at the desired temperature without significant loss. The high thermal conductivity of ductile iron also helps to minimize the risk of thermal expansion and contraction, which can lead to pipe failure or leakage. Furthermore, ductile iron pipes have a high melting point, typically around 2000°F (1093°C), which makes them resistant to the extreme temperatures encountered in steam applications. This ability to withstand high temperatures without deformation or structural failure ensures the reliability and longevity of the piping system. Another important factor contributing to the performance of ductile iron pipes in high-temperature steam applications is their corrosion resistance. These pipes are typically coated with epoxy or other protective materials to prevent corrosion and maintain their structural integrity even in aggressive steam environments. This corrosion resistance helps to ensure that the pipes can withstand the harsh conditions and operate efficiently over an extended period. In summary, ductile iron pipes are well-suited for high-temperature steam applications due to their excellent thermal conductivity, high melting point, and corrosion resistance. These properties make them a reliable and durable choice for steam distribution systems, ensuring the safe and efficient transport of steam at elevated temperatures.

Q: Can ductile iron pipes be used for gravity sewer systems?: Certainly! Gravity sewer systems can utilize ductile iron pipes. Ductile iron pipes boast durability, strength, and corrosion resistance, making them appropriate for a range of purposes, such as sewer systems. These pipes possess remarkable tensile strength and can endure substantial pressure and heavy loads, which renders them well-suited for gravity sewer systems where wastewater naturally flows rather than requiring pumping. Moreover, ductile iron pipes boast an extended lifespan and necessitate minimal maintenance, thus proving to be a cost-efficient option for sewer infrastructure.

Q: Ductile iron pipe length is generally much: The spheroidal graphite tube of hot film casting process is generally a single branch with a length of 8 meters. The ductile iron pipes produced by this process are usually large caliber pipes. For example, DN1000 or more.

Q: Can ductile iron pipes be used for underground fire protection systems?: Ductile iron pipes are indeed applicable for underground fire protection systems. Their exceptional strength and durability render them suitable for enduring the intense pressure and high temperatures that may arise during a fire. Moreover, these pipes exhibit significant resistance to corrosion, a vital attribute for long-term underground usage. In addition, they possess exceptional flow characteristics, enabling swift and efficient water delivery for extinguishing fires. All in all, ductile iron pipes prove to be a dependable and efficient selection for underground fire protection systems.

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