DUCTILE IRON PIPES C Class DN500
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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 pipe be used for gas distribution systems?
- Indeed, gas distribution systems can utilize ductile iron pipe. Ductile iron, being a robust and enduring substance, exhibits resistance to corrosion, thus rendering it suitable for subterranean applications. Its capacity to endure high pressure and furnish a dependable and enduring solution has led to its widespread employment in gas distribution systems for numerous years. Moreover, ductile iron pipes are acknowledged for their pliability, facilitating simpler installation and upkeep. Nevertheless, it is imperative to guarantee conformity with the specific requirements and standards of gas distribution systems when implementing ductile iron pipes to ensure the system's safety and efficiency.
- Q: How are ductile iron pipes tested for quality?
- Ductile iron pipes are tested for quality using various methods to ensure they meet the required standards and specifications. One common test is the hydrostatic pressure test, which involves subjecting the pipes to water or other liquid under high pressure to check for any leaks or weaknesses. The pipes are typically filled with water and the pressure is gradually increased to a predetermined level. This test helps to identify any potential defects in the pipes that could compromise their integrity. Another important quality test for ductile iron pipes is the tensile test. This test involves pulling a sample of the pipe until it breaks, measuring the amount of force applied and the elongation of the sample. By doing so, the tensile strength and ductility of the pipe can be determined, ensuring it can withstand the required loads and stresses without deformation or failure. In addition to these tests, other quality checks include visual inspection, dimensional checks, and surface defect examinations. Visual inspection involves scrutinizing the pipes for any visible defects such as cracks, voids, or surface irregularities. Dimensional checks ensure that the pipes meet the specified dimensions and tolerances. Furthermore, ductile iron pipes are often subjected to corrosion resistance tests. This is done by exposing the pipes to different corrosive environments, such as saltwater or acidic solutions, to evaluate their resistance to corrosion. This is crucial as it determines the durability and longevity of the pipes, especially in applications where they may be exposed to harsh conditions. Overall, ductile iron pipes undergo rigorous testing to ensure their quality and performance. These tests help guarantee that the pipes meet the required standards, are safe to use, and are capable of withstanding the expected loads and environmental conditions they will encounter in their intended applications.
- 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 relationship between the mechanical properties of spheroidal graphite cast iron and its spheroidization rate?
- The spheroidization level reflects only the final shape of graphite. The higher the spheroidization level of ductile iron is, the better its performance is, but this is not entirely the level of spheroidization to determine.The mechanical properties of nodular cast iron are closely related to its microstructure. Different grades of ductile iron require different mechanical properties such as tensile, yield, elongation, impact and hardness.
- Q: How much is a ductile iron pipe dn400?
- Ductile iron pipe nominal diameter is 80 ~ 2200 mm, compared with grey cast iron, high strength, good toughness, thin wall metal, less dosage, and can withstand high pressure, effective length of 5 meters, 6 meters and 8 meters; according to the different thickness of P, G two. It is the development direction of cast iron pipe.
- Q: Are ductile iron pipes suitable for underground river crossings?
- Yes, ductile iron pipes are suitable for underground river crossings due to their high strength, durability, and resistance to corrosion. They can withstand the pressure of flowing water and provide long-term reliability in such challenging environments.
- Q: Can ductile iron pipe be used for wastewater treatment plant sludge handling?
- Indeed, ductile iron pipe is suitable for the handling of sludge in wastewater treatment plants. Possessing strength and durability, this material resists corrosion and endures the challenging conditions related to sludge management. Frequently employed in wastewater treatment plants for sludge transport, it ensures remarkable structural integrity and boasts an extended lifespan. Moreover, ductile iron pipe proves effortless to install and maintain, rendering it a pragmatic selection for sludge handling purposes within wastewater treatment plants.
- Q: Are ductile iron pipes suitable for sewer force mains?
- Yes, ductile iron pipes are suitable for sewer force mains. Ductile iron is a type of cast iron that has a higher level of strength and flexibility compared to traditional cast iron pipes. This makes it ideal for applications where the pipes need to withstand high pressure and heavy loads, such as sewer force mains. Ductile iron pipes have excellent resistance to corrosion and are highly durable, which is crucial for sewer systems that are exposed to various corrosive substances and harsh environments. They also have the ability to absorb vibrations and shocks, reducing the risk of pipe failures caused by external forces. Furthermore, ductile iron pipes are known for their long service life, often lasting for more than 100 years. This makes them a cost-effective choice for sewer force mains, as they require minimal maintenance and replacement over their lifetime. Overall, ductile iron pipes offer a reliable and durable solution for sewer force mains, providing the necessary strength, flexibility, and resistance to corrosion to ensure efficient and long-lasting sewer systems.
- Q: How much is the working pressure of ductile iron pipe used in water supply pipe and how is MPa determined?
- Upstairs are positive solutions, but now outdoor buried water pipes are using steel wire mesh skeleton, plastic composite pipe instead of ductile iron pipeThe general pressure grades used for water supply pipes are 1.0MPa and 1.6Mpa
- Q: Can ductile iron pipes be used for firefighting systems?
- Yes, ductile iron pipes can be used for firefighting systems. Ductile iron pipes are known for their strength, durability, and ability to withstand high pressure. They are commonly used in various applications, including firefighting systems, due to their resistance to corrosion and their ability to handle the flow of water efficiently.
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DUCTILE IRON PIPES C Class DN500
- Ref Price:
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
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