DUCTILE IRON PIPE C Class DN150
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Ductile Iron Cast Pipe is without any defects compare with tradition casting tech, which has many advantages particularly as follow:
(1) High density. In the "vertical upward casting" process, the melt iron of centre liquid column in center crystallizer is continuously feeding for volume shrinkage caused by condensation tube at outer circumference , which lead to be free of shrinkage porosity.
(2) High purity. When melt iron pouring, the mixed impurities such as gas, dross, sand grain which are lighter than melt iron could be eliminated at furnace mouth, its impossible to enter into the crystallizer through the channel, so the melt iron into the crystallizer is very pure.
(3) Strength with toughness. The cooling speed provided by continuous crystallizer is 30 times than sand casting and 5 times than centrifugal casting, and doesn't produce white iron, the eutectic cell volume of continuous cast iron is one eighth to one tenth compare with traditional cast iron. The density of graphite nodule in ductile iron can reach 300-700 pcs/mm2. Therefore, all reason above improve the strength and toughness of continuous cast iron.
(4) Free machining. The high speed cooling make the hardening phase (such as boride, steadite) not appear like reticular, massive or thick, but diffuse like fish bone and pane in shape, moreover, there are tiny graphite flakes inlaid hardening phase. It's free machining in BrinellHardness the range of 250-300HB. However, the Brinell Hardness of 250 is top limit to common metal materials.
(5) Uniform composition of tube wall. The convection mixing of liquid column caused by marching type drawing in crystallizer make the composition of tube wall well-distributed, and concentration gradient very little.
(6) High productivity. To the wall thickness of tube under 10mm, the speed of continuous casting is 1 meter/min, to the wall thickness of tube under 20mm, the speed of continuous casting is 0.5 meter/min, which is high efficiency that centrifugal or other casting tech couldn't reach.
- Q: What is the internal lining used in ductile iron pipes?
- The internal lining used in ductile iron pipes is typically a cement mortar lining.
- Q: How does ductile iron pipe perform in areas with high soil settlement?
- Ductile iron pipe is known for its exceptional performance in areas with high soil settlement. Due to its inherent strength and durability, it can withstand the pressures exerted by settling soil without compromising its structural integrity. The flexibility of ductile iron pipe allows it to accommodate ground movements caused by soil settlement, thus minimizing the risk of pipe failure or damage. Its ability to adapt to these movements helps prevent cracks, leaks, and breaks that could occur in more rigid pipe materials. Moreover, ductile iron pipe's strong resistance to corrosion provides an added advantage in high soil settlement areas. It can withstand the corrosive effects of the soil and other environmental factors, ensuring the longevity and reliability of the pipe system. In areas with high soil settlement, ductile iron pipe is often the preferred choice due to its ability to handle ground movements without sacrificing performance. Its strength, flexibility, and resistance to corrosion make it an ideal solution for maintaining a robust and efficient water distribution system even in challenging soil conditions.
- Q: Can ductile iron pipes be used for trench crossings?
- Yes, ductile iron pipes can be used for trench crossings. Ductile iron pipes are known for their high strength and durability, making them suitable for various applications including trench crossings. They have the ability to withstand heavy loads and provide increased resistance to external forces, making them a reliable choice for such purposes.
- Q: Can ductile iron pipes be used for water tunnel crossings?
- Indeed, water tunnel crossings can utilize ductile iron pipes. Renowned for their robustness, longevity, and immunity to corrosion, ductile iron pipes prove to be an ideal option for diverse purposes, including water tunnel crossings. Their ability to endure immense pressure, external burdens, and soil movements, commonly experienced in tunnel crossings, is commendable. Moreover, ductile iron pipes boast an extended lifespan and necessitate minimal upkeep, rendering them an economical resolution for water tunnel crossings.
- Q: Can ductile iron pipe be used for gas distribution systems?
- Yes, ductile iron pipe can be used for gas distribution systems. Ductile iron pipes have proven to be reliable and durable, making them suitable for carrying natural gas and other gases in distribution systems. They have good corrosion resistance, high strength, and can withstand high pressure, making them a commonly used material in gas distribution infrastructure.
- Q: Deep well spiral iron pipe, or ductile iron tube?
- Ductile iron pipe is a kind of cast iron pipe. In quality, the spheroidization of cast iron pipes is controlled to be 1-3 (spheroidization rate 80%), so the mechanical properties of the cast iron pipes, ductile iron pipes and finished product libraries can be better improved, with the nature of iron and the properties of steel. 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: General cast iron prices now
- Hubei, Suizhou, in 2010, normally 5000-7000 tons of iron, if required to join copper and other metals, the price is calculated. The price is very low, because the market price in Suizhou is the lowest in the whole country. Under normal circumstances, it should be 8000 tons a ton
- Q: The design uses water supply ductile iron pipe, PE corrosion protection pipe, HDPE pipe, please ask that good? What's the price of the two?
- Ductile iron pipes are difficult to make and do not make money, and even easy to lose money, it is not recommended to do, the price can be found on Baidu. DN100 6, about 400 yuan ~500 yuan, DN200,6 about 900 yuan ~1000 yuan, when the market to buy to ask a length. Difficult to do in ductile pipe easily affected by topography (when digging the trenching dug in front of the back of their repair, trouble), vulnerable to local soil effects (such as settlement). Parts connection is not fixed, easy to leak. The advantage is that once the installation is completed, the pressure test is successful and is used for life.
- Q: Can ductile iron pipes be used for road and highway drainage?
- Ductile iron pipes are a viable option for road and highway drainage purposes. With their exceptional strength and durability, these pipes are well-suited for a range of applications, including drainage systems. They possess a high tensile strength and can endure heavy loads and traffic, making them an ideal choice for road and highway drainage, where continuous vehicle movement is anticipated. Moreover, ductile iron pipes are resistant to corrosion and have a long lifespan, minimizing the need for maintenance and replacement, ultimately reducing costs. Additionally, their smooth inner surface enables efficient water flow, preventing waterlogging and ensuring proper drainage. Hence, ductile iron pipes are a dependable and efficient selection for road and highway drainage systems.
- Q: How are ductile iron pipes tested for quality assurance?
- Ductile iron pipes undergo various testing procedures to ensure their quality and meet industry standards. These quality assurance tests are conducted on both raw materials and finished products to ensure the durability, strength, and overall reliability of ductile iron pipes. One of the initial tests is the chemical analysis of the raw materials used in manufacturing the pipes. This analysis ensures that the composition of the iron, carbon, and other elements is within the specified range, as different compositions can affect the pipe's strength and corrosion resistance. Next, mechanical tests are performed to evaluate the strength and ductility of the pipes. Tensile tests are conducted to determine the ultimate tensile strength, yield strength, and elongation properties of the pipe. This helps in assessing the pipe's ability to withstand external pressure or bending forces. Additionally, impact tests are performed to evaluate the pipe's resistance to sudden loading or impact. This test measures the energy absorbed by the pipe when subjected to a high impact force, ensuring that it can withstand potential accidental impacts during installation or operation. Another critical test is the hydrostatic pressure test, which checks the pipes' ability to withstand internal pressure. In this test, the pipes are filled with water and subjected to a specified pressure for a specific duration. This ensures that the pipes can withstand the expected operating pressure without any leakage or failure. Furthermore, dimensional and visual inspections are conducted to ensure that the pipes meet the required specifications. These inspections include checking the pipe's outer diameter, length, wall thickness, and overall appearance for any defects, such as cracks, voids, or irregularities. Lastly, corrosion resistance tests are performed to assess the pipe's ability to resist corrosion when exposed to different environments or fluids. This helps in determining the expected lifespan of the pipes and their suitability for various applications. Overall, these quality assurance tests play a crucial role in ensuring that ductile iron pipes meet the required standards and provide reliable and long-lasting performance in various infrastructure projects.
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DUCTILE IRON PIPE C Class DN150
- Ref Price:
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- Loading Port:
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