DUCTILE IRON PIPES C Class DN400
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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 relationship between the installation direction of the ductile iron pipe and the direction of flow?
- The ductile iron pipe is installed in the direction of the current.
- Q: What are the specifications of cast iron pipes?
- The nominal diameter of the continuous grey cast iron pipe is 75~1200 mm. It adopts the form of socket type or flange disk interface. It can be divided into two kinds of flexible interface and rigid interface according to function. The length of the straight pipe is 4 meters, 5 meters and 6 meters. According to the wall thickness, LA, A and B are divided into three grades. The nominal diameter of the centrifugal cast iron pipe of the sand mould is 200~1000 mm, the effective length is 5 meters and 6 meters. According to the wall thickness, it is divided into two grades: P and G. High strength, good toughness, thin tube wall, little metal consumption, and can bear higher pressure,
- Q: How much is the installation of cast iron pipe drainage 1 meters?
- Water supply pipe is the first choice, with high cost performance. Compared with the PE pipe, from the installation time, ductile pipe PE pipe installation is simple and rapid, and after the installation of internal and external bearing pressure better;
- Q: Ductile iron pipe is how many years warranty
- 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 material have been 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: Are ductile iron pipes suitable for use in chemical processing plants?
- Yes, ductile iron pipes are suitable for use in chemical processing plants. Ductile iron is a type of cast iron that has enhanced mechanical properties, making it highly resistant to corrosion and suitable for handling various chemicals in industrial settings. It is known for its high tensile strength, durability, and flexibility, allowing it to withstand the high-pressure and temperature conditions often present in chemical processing plants. Additionally, ductile iron pipes have a smooth internal surface, which helps to minimize friction and reduce the risk of flow blockages or contamination. Overall, ductile iron pipes offer a reliable and cost-effective solution for transporting chemicals in chemical processing plants.
- Q: Are ductile iron pipes resistant to hydrogen sulfide corrosion?
- Yes, ductile iron pipes are generally resistant to hydrogen sulfide corrosion. Ductile iron is a type of cast iron that has been treated with magnesium to create a more flexible and durable material. This treatment significantly enhances its resistance to corrosion, including corrosion caused by hydrogen sulfide. The magnesium in the ductile iron forms a protective layer on the surface, preventing the penetration of hydrogen sulfide and other corrosive agents. However, it is important to note that the resistance of ductile iron pipes to hydrogen sulfide corrosion can still be influenced by factors such as the concentration and duration of exposure to the corrosive environment. Therefore, proper maintenance, regular inspection, and appropriate protective measures should still be implemented to ensure the long-term durability and performance of ductile iron pipes in the presence of hydrogen sulfide.
- Q: There are several forms of flexible interfaces for Spigot Cast Iron Pipes
- Socket type cast iron pipe rigid interface antiallergic can, under the action of external force, no tower water supply equipment interface packing easy fragmentation and leakage, especially in the weak foundation and uneven subsidence area and the earthquake zone. The interface damage rate is higher. Therefore, flexible interfaces should be adopted under the above unfavorable conditions.
- Q: Can ductile iron pipe be used in high-pressure applications?
- Yes, ductile iron pipe can be used in high-pressure applications. Ductile iron pipe is known for its strength and durability, making it suitable for a variety of applications, including high-pressure systems. It has a higher tensile strength and yield strength compared to other types of cast iron pipes, allowing it to withstand higher pressures. Additionally, ductile iron pipe is resistant to corrosion and can maintain its structural integrity even under high-pressure conditions. However, it is important to ensure that the pipe is properly installed, and all necessary safety measures are followed to ensure the safe and efficient operation of the high-pressure system.
- Q: What is the expected deflection capability of ductile iron pipes?
- The expected deflection capability of ductile iron pipes is typically quite high compared to other pipe materials. Ductile iron pipes have a flexible nature that allows them to withstand external loads and stresses without breaking or cracking. This flexibility enables the pipes to deflect under pressure, absorbing the force and redistributing it evenly along the pipe's length. The specific deflection capability of ductile iron pipes can vary depending on factors such as pipe diameter, wall thickness, and soil conditions. However, in general, ductile iron pipes can typically deflect up to 2% to 5% of their diameter without causing any significant damage or compromising their structural integrity. This deflection capability allows the pipes to adapt to ground movement, thermal expansion, and other external forces, making them highly resilient and reliable for various applications. It is important to note that the deflection capability of ductile iron pipes should be considered in conjunction with other design criteria, such as the depth of the pipe burial, trench width, and backfill material. Following proper installation practices and adhering to industry standards and specifications will ensure that the expected deflection capability of ductile iron pipes is optimized and maintained throughout their service life.
- Q: Can ductile iron pipes be used in tunneling or microtunneling projects?
- Tunneling or microtunneling projects can utilize ductile iron pipes. These pipes possess strength, durability, and flexibility, making them appropriate for underground applications. They can endure the external pressure from the surrounding soil or rock during tunneling, guaranteeing the project's integrity and safety. Furthermore, ductile iron pipes exhibit exceptional corrosion resistance, a vital characteristic for tunneling projects where the pipes are exposed to moisture and other corrosive substances. Moreover, their internally smooth surface facilitates the fluid or material flow through the pipes, rendering them an optimal selection for tunneling or microtunneling projects.
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DUCTILE IRON PIPES C Class DN400
- Ref Price:
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
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