DUCTILE IRON PIPES C Class DN200
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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: Can ductile iron pipes be used for underground fuel storage systems?
- No, ductile iron pipes are not suitable for underground fuel storage systems. They are more commonly used for water and sewer applications due to their strength and durability in carrying liquids. Underground fuel storage systems require materials that are specifically designed to handle the corrosive nature of fuel and prevent leaks or contamination, such as double-walled fiberglass or steel tanks.
- Q: How can the ductile iron pipe depress the elbow so as to prevent it from being opened?
- The elbow is the pipe that changes the direction of the pipe. According to the angle, there are 45 degrees and 90 degrees, 180 degrees, three most commonly used, in addition, according to the project needs, including 60 degrees and other non normal angle elbow.
- Q: Can ductile iron pipes be made into clear tubes?
- Not recommended to do the tube, mainly aesthetic problems
- Q: What are the different methods for restraining ductile iron pipe?
- Some different methods for restraining ductile iron pipe include using thrust blocks, tie rods, and flexible couplings. Thrust blocks are concrete structures that are placed at bends or fittings in the pipeline to resist the axial thrust forces. Tie rods are used to connect the pipe to fixed points, providing additional support and preventing movement. Flexible couplings can also be used to restrain pipe by connecting sections together, allowing for some movement while still maintaining stability.
- Q: What is the expected pressure rating for ductile iron pipes?
- The expected pressure rating for ductile iron pipes can vary depending on various factors such as the pipe diameter, wall thickness, and the specific application it is being used for. However, generally speaking, ductile iron pipes are designed and manufactured to withstand high-pressure conditions. They are commonly used in water and wastewater systems, where they can typically handle pressures ranging from 150 psi (pounds per square inch) up to 350 psi or even higher. It is important to consult the manufacturer's specifications or relevant industry standards for specific pressure ratings based on the pipe's size and application to ensure safe and reliable operation.
- Q: Can ductile iron pipes be used in dam or reservoir projects?
- Yes, ductile iron pipes can be used in dam or reservoir projects. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for various applications, including water distribution and transmission systems. In dam or reservoir projects, where the pipes need to withstand high pressure and carry large volumes of water, ductile iron pipes are often preferred. They have excellent mechanical properties, including high tensile strength and impact resistance, which ensure their ability to handle the load and provide a reliable and long-lasting solution. Additionally, ductile iron pipes are also adaptable to various installation methods, including trenchless techniques, making them a versatile choice for dam or reservoir projects.
- Q: What is the content of silicon in silicon molybdenum ductile iron?
- High silicon molybdenum ductile cast iron is developed for end users successfully reduces the cost, and the castings have high strength, good oxidation resistance, and has good performance under thermal cycling condition. This kind of ductile iron silicon content of 4% molybdenum content 0.6%-0.8%, currently designated as many car manifold and turbocharger shell, and molybdenum content than the silicon alloy casting 1% more for special high temperature exhaust pipe, heat treatment. High silicon molybdenum alloy nodular cast iron castings used in the production of automotive turbocharger.
- Q: How does ductile iron pipe handle thermal expansion and contraction?
- The effectiveness of ductile iron pipe in dealing with thermal expansion and contraction is well-known. This is primarily due to its unique material properties and design characteristics. To begin with, it is worth noting that ductile iron pipe has a high coefficient of linear expansion. This means that it experiences relatively more expansion and contraction compared to other materials when exposed to temperature changes. As a result, the pipe is able to accommodate thermal expansion and contraction without causing excessive stress or deformation. Furthermore, the design of ductile iron pipes includes flexible joints. These joints, such as push-on or mechanical joints, are capable of absorbing the movement caused by thermal expansion and contraction. By providing a certain level of flexibility, these joints enable the pipe to expand and contract within a specific range without compromising its structural integrity. Additionally, the material composition of ductile iron itself plays a significant role in its ability to handle thermal expansion and contraction. Ductile iron is a type of cast iron alloy that contains nodular graphite in its microstructure. This composition provides the pipe with enhanced ductility and tensile strength. As a result, the pipe is able to withstand the stresses induced by thermal expansion and contraction without fracturing or breaking. Overall, ductile iron pipe is designed and produced in a manner that allows it to effectively deal with thermal expansion and contraction. Its high coefficient of linear expansion, flexible joints, and ductile material properties all work together to ensure that the pipe can accommodate temperature changes without causing any significant issues or structural failures.
- Q: Are ductile iron pipes suitable for horizontal directional drilling?
- Yes, ductile iron pipes are suitable for horizontal directional drilling due to their high strength and flexibility, which allows them to withstand the stress and bending forces during the drilling process.
- Q: Can ductile iron pipes be used for trenchless installations?
- Yes, ductile iron pipes can be used for trenchless installations. Trenchless technology allows for the installation, repair, or replacement of underground infrastructure without the need for extensive excavation. Ductile iron pipes, known for their strength and durability, are suitable for various trenchless methods such as horizontal directional drilling (HDD), pipe bursting, and slip lining. These methods minimize disruption to the surrounding environment and reduce costs compared to traditional open-cut trenching.
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DUCTILE IRON PIPES C Class DN200
- 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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