DUCTILE IRON PIPES C Class DN600
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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: How does ductile iron pipe handle temperature changes?
- Ductile iron pipe is known for its ability to handle temperature changes effectively. The unique properties of ductile iron make it highly resistant to thermal expansion and contraction, allowing it to withstand extreme temperature variations without significant deformations or failures. When exposed to temperature changes, ductile iron pipes can expand or contract within certain limits due to its inherent ductility. This flexibility helps to accommodate thermal stresses and prevent the pipe from cracking or breaking. The material's high tensile strength and elasticity also contribute to its ability to handle temperature changes without significant structural damage. Moreover, ductile iron pipes have a low coefficient of thermal expansion, meaning they expand and contract at a relatively slow rate compared to other materials. This characteristic minimizes the potential for stress on the pipe joints and reduces the risk of leaks or failures. In addition to its excellent thermal stability, ductile iron pipe also features a protective lining that further enhances its resistance to temperature changes. The linings, such as cement mortar or polyethylene, create a barrier between the pipe and the transported fluid, preventing any adverse effects caused by thermal variations on the pipe's internal surface. Overall, ductile iron pipe is a reliable choice for applications where temperature changes are common. Its ability to withstand thermal stresses, low coefficient of thermal expansion, and protective linings make it a durable and efficient solution for various infrastructural needs, including water distribution, wastewater management, and industrial applications.
- Q: How long is the service life of the cast iron pipe, and the time of use of ductile iron pipes?
- When it comes to the service life of nodular cast iron, its maintenance is essential for its long service life. Then, the focus of the maintenance of ductile iron pipe is to pay special attention to, will affect the long-term use of ductile iron pipes, stable operation of socket, row, etc., we should make efforts to these aspects of the mouth without debris. Make sure that the rubber ring of the ductile iron pipe has been smashed with a rubber hammer, and it is not twisted or twisted, and it is uniformly stuck in the slot. Ductile iron pipe in the maintenance process, because of the pneumatic tube axis is buried into the ground, so in the face of a tilt angle of the time, we must be careful, if the resistance is too large, will not force the excavation, in order to prevent the distortion of the rubber ring.
- Q: What is the expected bending stress capacity of ductile iron pipes?
- The expected bending stress capacity of ductile iron pipes varies depending on the specific grade and size of the pipe, as well as factors such as installation conditions and external loads. However, ductile iron pipes generally have high strength and flexibility, allowing them to withstand significant bending stresses. It is recommended to refer to the manufacturer's specifications and engineering guidelines for a more accurate estimation of the bending stress capacity of a particular ductile iron pipe.
- Q: Are ductile iron pipes available for cutting and are there any relevant specifications?
- You can cut, there should be no specification requirements, as long as you can use, in line with the needs of the project can
- Q: What is the expected surge pressure rating of ductile iron pipes?
- The expected surge pressure rating of ductile iron pipes can vary depending on various factors such as the diameter and thickness of the pipe, the type of joint used, and the specific manufacturer's specifications. However, ductile iron pipes are generally designed to withstand surge pressures between 150% to 200% of their working pressure rating. This means that if a ductile iron pipe has a working pressure rating of, for example, 250 psi, it can typically handle surge pressures of up to 375 psi to 500 psi. It is important to consult the manufacturer's specifications and guidelines for accurate surge pressure ratings specific to the ductile iron pipes being used.
- Q: Are ductile iron pipes resistant to biological growth?
- Indeed, ductile iron pipes exhibit a general resistance to biological growth. Ductile iron, a robust and enduring substance, finds widespread application in water and sewage systems. Its sleek exterior hampers the proliferation of bacteria, fungi, and other microorganisms that foster biological growth. Moreover, ductile iron pipes frequently receive protective linings or coatings, for instance, cement mortar or epoxy, which heighten their resistance to biological growth. Nevertheless, it is crucial to acknowledge that no material remains entirely impervious to biological growth, necessitating regular maintenance and cleansing of the pipes to ensure sustained resilience in the long run.
- Q: Can ductile iron pipes be used for submarine pipelines?
- Submarine pipelines can indeed utilize ductile iron pipes. Ductile iron, celebrated for its robustness and durability, proves suitable for a range of applications, including those submerged underwater. For decades, ductile iron pipes have been successfully employed in the construction of submarine pipelines. They possess the ability to endure the harsh conditions prevalent in underwater environments, such as corrosion, pressure, and shifting seabeds. Furthermore, ductile iron pipes display exceptional resistance to external loads, rendering them ideal for submarine pipelines that bear the weight of water and potential impacts. However, it remains imperative to consider factors such as coating, cathodic protection, and proper installation techniques to ensure the long-term performance and integrity of the submarine pipeline.
- Q: Can ductile iron pipes be used in areas with high soil erosion?
- Yes, ductile iron pipes can be used in areas with high soil erosion. Ductile iron is known for its high tensile strength and durability, making it resistant to external forces such as soil erosion. It is a suitable choice for underground piping systems in such areas, providing long-term reliability and stability.
- Q: How many casting methods are there in ductile iron casting? A 60*6 discus can not have sand holes. Its surface is smooth. What process can be used to make it?
- Is it better to use precoated sand, but only a little higher cost?.
- Q: Can ductile iron pipes be used for underground chemical transport systems?
- No, ductile iron pipes are not suitable for underground chemical transport systems as they are prone to corrosion and may react with certain chemicals, leading to potential leaks and contamination.
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DUCTILE IRON PIPES C Class DN600
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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