DUCTILE IRON PIPE C Class DN350
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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 maximum pressure rating for ductile iron pipe?
- Several factors, including pipe diameter, wall thickness, and joint type, typically determine the maximum pressure rating for ductile iron pipe. Generally, manufacturers produce ductile iron pipe capable of withstanding a pressure rating of 350 psi or more. However, it is crucial to consult the specific manufacturer's specifications and guidelines to ascertain the precise maximum pressure rating for a specific ductile iron pipe.
- Q: What is the composition of ductile iron pipes?
- Ductile iron pipes consist mainly of iron, with small amounts of carbon, silicon, and other alloying elements. The iron content typically ranges from 90% to 94%, while carbon content is usually around 3% to 4%. Silicon is added between 1.5% to 3%, which enhances the ductility and strength of the iron. Smaller quantities of manganese, sulfur, and phosphorus may also be present. The composition of ductile iron pipes is carefully engineered to achieve specific properties. By adding carbon and silicon, the hardness and strength of the iron are improved, making it suitable for demanding applications. These alloying elements also contribute to the pipes' ductility, allowing them to be easily bent and molded without breaking. In summary, the composition of ductile iron pipes is designed to strike a balance between strength, ductility, and resistance to corrosion. This makes them ideal for use in water and sewage systems, where they can endure high pressure, bear heavy loads, and resist the corrosive effects of water and other chemicals.
- Q: Do ductile iron pipes require special handling during transportation?
- Transporting ductile iron pipes requires special handling. While these pipes are known for their strength and durability, improper handling can result in damage. Due to their weight and size, it is crucial to use appropriate lifting and handling equipment. Dropping or impacting the pipes must be avoided to prevent cracks or fractures. Moreover, pipes should be stored and transported securely to prevent rolling or shifting, which could harm the pipe coating and fittings. Additionally, it is advisable to shield the pipes from extreme temperatures or adverse weather conditions during transportation. Adhering to these guidelines and taking necessary precautions will minimize the risk of damage during transportation.
- Q: Can ductile iron pipes be used for underground storage of hazardous materials?
- It is not recommended to use ductile iron pipes for underground storage of hazardous materials. Ductile iron pipes are typically utilized for water and sewage systems because of their durability and resistance to corrosion. However, they are not designed to withstand the specific demands and potential dangers associated with storing hazardous materials underground. In the case of underground storage of hazardous materials, it is crucial to utilize materials that are specially engineered to handle the chemical properties and potential risks linked to these substances. Materials such as high-density polyethylene (HDPE) or fiberglass reinforced plastic (FRP) are commonly employed for underground storage tanks due to their excellent chemical resistance and ability to maintain structural integrity over time. Employing ductile iron pipes for such purposes may result in corrosion, leaks, or even catastrophic failures, which could lead to environmental contamination and potential harm to the surrounding areas. Therefore, it is essential to seek advice from experts and comply with relevant regulations and guidelines when selecting materials for underground storage of hazardous materials to ensure safety and prevent potential hazards.
- Q: What's the difference between grey cast iron pipe and ductile iron pipe?
- Ductile iron is close to medium carbon steel and is much cheaper. Vermicular graphite iron is the best, but grey iron is worse and white iron is the worst. Therefore, the quality of ductile iron pipe with better quality and price is superior to other cast iron pipe fittings.
- Q: Do ductile iron pipes require concrete encasement for support?
- Concrete encasement is typically necessary for providing support to ductile iron pipes. This encasement offers extra stability and strength, safeguarding the pipes against pressure-induced shifting or collapsing. Furthermore, it aids in evenly distributing the load along the pipe's length and shielding it from external forces like soil movement or heavy vehicular activity. In addition to these benefits, concrete encasement helps reduce the likelihood of corrosion or damage caused by external impacts, thereby ensuring the long-lasting durability of the ductile iron pipes.
- Q: How do ductile iron pipes handle soil erosion?
- Ductile iron pipes are highly resistant to soil erosion due to their robust construction and inherent strength. The pipes' durable and flexible nature allows them to withstand the impact of soil movement and erosion without significant damage. Moreover, the corrosion-resistant coatings applied to ductile iron pipes further enhance their ability to resist erosion caused by soil particles and other corrosive elements. Overall, ductile iron pipes provide a reliable and long-lasting solution for handling soil erosion in various applications.
- Q: Are ductile iron pipes suitable for sewer force mains?
- Yes, ductile iron pipes are suitable for sewer force mains. They have proven to be a reliable and durable choice for transporting wastewater under pressure. Their high tensile strength and resistance to corrosion make them ideal for withstanding the demanding conditions of sewer force mains.
- Q: How are ductile iron pipes different from cast iron pipes?
- Ductile iron pipes are different from cast iron pipes in terms of their composition and properties. Ductile iron pipes are made from a type of cast iron that has been treated with magnesium to improve its strength and flexibility. This makes ductile iron pipes more durable, impact-resistant, and less prone to cracking or breaking compared to traditional cast iron pipes. Additionally, ductile iron pipes have a higher tensile strength, allowing them to withstand higher internal and external pressures. In summary, ductile iron pipes are a more modern and advanced version of cast iron pipes, offering improved performance and longevity.
- Q: Advantages and disadvantages of ductile iron pipes
- Comparison between ductile iron pipe and universal cast iron pipe: the process of making ductile iron pipe is cast by adding alkaline earth metal or rare metal such as magnesium and calcium in the raw material of common cast iron pipe. The casting process of nodular cast iron pipe casting method and water cooled centrifugal casting hot continuous casting method, which method is water, the world's most advanced technology, different technology of ductile cast iron and cast iron pipe technology performance comparison, not only to maintain the ordinary cast iron pipe corrosion resistance, and has the advantages of high strength and toughness good, thin wall, light weight, impact resistance, bending performance, convenient installation.
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DUCTILE IRON PIPE C Class DN350
- 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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