DUCTILE IRON PIPE K7 DN 1000 SOCKET SPIGOT PIPE

DUCTILE IRON PIPE K7 DN 1000 SOCKET SPIGOT PIPE

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 2000 m.t.

Supply Capability:: 30000 m.t./month

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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.

Q:What is the typical lifespan of ductile iron pipe?: The typical lifespan of ductile iron pipe is around 50 to 100 years, depending on various factors such as the quality of installation, maintenance practices, and environmental conditions.

Q:Does the cast iron have size 250? What's the performance?: Ductile iron does not have size 250. Ductile iron is the beginning of QT, QT400-15, QT450-10, QT500-7 is the general use of nodular cast iron brand. Nodular cast iron welding can be determined, this should be in some high strength cast iron equipment used more, the tensile strength of normally ductile cast iron welding in welding is higher, is worse than the grey cast iron, it is actually very difficult to distinguish with the naked eye is ductile iron or cast iron the iron in the repair equipment, we usually use WE777 special cast iron electrode universal wide welding, but it is only for maintenance use, the effect is really good, reducing the risk of cracking and high strength welding rod matching to ensure the strength of welding seam.

Q:Can ductile iron pipe be used for both water and wastewater applications?: Ductile iron pipe is versatile and can be used for water and wastewater applications. It is made by treating iron with small amounts of magnesium, resulting in a material that is both flexible and durable. This flexibility and durability make it suitable for transporting both water and wastewater. Its high strength and resistance to corrosion make it ideal for underground applications. Ductile iron pipes can handle the high pressures and varying flow rates commonly found in water distribution systems, as well as the corrosive properties of wastewater. In addition, they have a longer lifespan compared to other materials like PVC or concrete, which are commonly used for water and wastewater projects. Therefore, ductile iron pipes are often chosen for reliable and long-lasting water and wastewater transport.

Q:What is the expected cyclic fatigue life of ductile iron pipes?: The expected cyclic fatigue life of ductile iron pipes can vary depending on several factors such as the quality of the material, design and installation practices, operating conditions, and maintenance. However, ductile iron pipes generally have a long fatigue life, often exceeding 100 years under normal operating conditions.

Q:How does ductile iron pipe perform in corrosive soils?: Ductile iron pipe performs exceptionally well in corrosive soils due to its inherent corrosion resistance properties. The pipe is made from a unique composition of iron, carbon, and other elements that enhance its durability and resistance to corrosion. One of the key features of ductile iron pipe is its protective lining. The interior of the pipe is lined with either cement mortar or a special epoxy coating, which acts as a barrier between the corrosive soil and the pipe itself. This lining protects the iron from coming into direct contact with the soil, preventing corrosion. Additionally, ductile iron pipe has a higher resistance to external corrosion when compared to other materials like steel. It can withstand the chemical reactions caused by acidic or alkaline soils and remains unaffected by the corrosive elements present in the ground. This makes it an ideal choice for installation in areas with highly corrosive soils. Furthermore, ductile iron pipe has a long service life, further contributing to its performance in corrosive soils. The durable nature of the pipe and its resistance to corrosion ensure that it can withstand the challenges posed by corrosive soils for several decades without significant degradation. In conclusion, ductile iron pipe excels in corrosive soils due to its protective lining, resistance to external corrosion, and long service life. Its ability to withstand the harsh conditions presented by corrosive soils makes it a reliable and durable choice for various applications, including water distribution, sewage systems, and industrial pipelines.

Q:How do ductile iron pipes perform in high-altitude areas?: Due to their inherent strength and durability, ductile iron pipes are highly effective in high-altitude regions. The exceptional properties of ductile iron, such as its high tensile strength and impact resistance, make it ideal for withstanding the challenges presented by high-altitude environments. One significant advantage of ductile iron pipes is their ability to endure both internal and external pressures. In areas with varying water pressure, these pipes can withstand such fluctuations without compromising their structural integrity. This guarantees a consistent and uninterrupted flow of water, eliminating the risk of pipe failures or leaks. Furthermore, ductile iron pipes possess excellent resistance against corrosion, which is crucial in high-altitude areas with unpredictable and harsh atmospheric conditions. The protective lining and external coatings of these pipes provide an additional layer of defense, ensuring their durability and reducing the need for frequent maintenance or replacements. Additionally, ductile iron pipes have a higher tolerance for temperature variations compared to other materials. In high-altitude regions where temperature fluctuations can be extreme, these pipes can withstand expansion and contraction without cracking or rupturing. This thermal stability is vital for maintaining the integrity of the pipeline system and preventing costly repairs. To summarize, ductile iron pipes are an ideal choice for high-altitude areas due to their strength, durability, resistance to pressure variations, corrosion resistance, and thermal stability. These properties make them a reliable option for water distribution systems in such environments, ensuring a continuous water supply without compromising safety or efficiency.

Q:What is the difference between ductile iron and cast iron pipes?: Ductile iron pipes and cast iron pipes are both popular materials for plumbing systems, but they differ in composition, strength, flexibility, installation methods, and cost. 1. Composition: Ductile iron pipes are made from a type of cast iron that has been treated with trace amounts of magnesium, enhancing its flexibility and strength. In contrast, cast iron pipes are made from regular cast iron, which is less malleable and more brittle. 2. Strength: Ductile iron pipes are significantly stronger than cast iron pipes, with higher tensile strength to withstand greater internal and external pressure. This makes them ideal for applications requiring high strength, such as water mains or sewer lines. Cast iron pipes, however, are more prone to cracking or breaking under pressure. 3. Flexibility: Ductile iron pipes have greater flexibility, allowing them to withstand ground movement without damage or breakage caused by settling or shifting soil. On the other hand, cast iron pipes are more susceptible to cracking or separating when exposed to ground movement or vibrations due to their inherent brittleness. 4. Installation: Ductile iron pipes are typically joined using mechanical or flanged joints, ensuring secure and leak-proof connections. In contrast, cast iron pipes are usually joined using bell-and-spigot joints, relying on gaskets or lead caulking for a seal. The mechanical joint used in ductile iron pipes offers better resistance to movement and external forces. 5. Cost: Ductile iron pipes are generally more expensive than cast iron pipes due to the additional treatment process and higher strength. However, the added durability and longer lifespan of ductile iron pipes can offset the initial investment by reducing the need for repairs or replacements over time. In conclusion, ductile iron and cast iron pipes differ in composition, strength, flexibility, installation methods, and cost. Ductile iron pipes offer superior strength and flexibility, making them suitable for demanding applications, while cast iron pipes are more brittle and prone to breakage. The choice between the two depends on the specific requirements of the plumbing system and the available budget.

Q:Are ductile iron pipes suitable for wastewater treatment plants?: Yes, ductile iron pipes are suitable for wastewater treatment plants. Ductile iron pipes are known for their durability, strength, and resistance to corrosion, making them ideal for handling the harsh and corrosive environment found in wastewater treatment plants. Additionally, they have a smooth internal surface, reducing the risk of clogging and facilitating the efficient flow of wastewater.

Q:Why is the sound speed of nodular cast iron lowered after heat treatment?: This may be the material microstructure changes after heat treatment, is generally the pearlite content increased, the available change heat treatment and then check the corresponding microstructure and corresponding measuring sound velocity adjustment, such as annealing, normalizing etc..

Q:Are ductile iron pipes suitable for use in mining applications?: Yes, ductile iron pipes are suitable for use in mining applications. Ductile iron, also known as nodular cast iron, is a type of iron that has been treated with magnesium or cerium to alter its microstructure, making it stronger and more flexible than traditional cast iron. This enhanced strength and ductility make ductile iron pipes highly resistant to impact, corrosion, and abrasion, which are common challenges in mining environments. In mining applications, ductile iron pipes are often used for various purposes such as water supply, slurry transportation, and ventilation systems. Their excellent durability and resistance to wear and tear make them ideal for handling abrasive materials, chemicals, and high-pressure fluids commonly found in mining operations. Furthermore, ductile iron pipes' ability to withstand heavy loads and external pressures makes them suitable for underground mining applications, where they may need to support the weight of overlying rock layers. Their high tensile strength and flexibility help prevent pipe failure and minimize the risk of leaks or breaks, ensuring the safety and efficiency of mining operations. Additionally, ductile iron pipes are relatively easy to install, maintain, and repair. They can be welded or joined using mechanical couplings, allowing for quick and efficient installation in mining sites. Their corrosion resistance also reduces the need for frequent maintenance and replacement, resulting in cost savings for mining companies. Overall, the superior mechanical properties and durability of ductile iron pipes make them a reliable and practical choice for use in mining applications.

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