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: Are ductile iron pipes suitable for horizontal auger boring installations?
- Horizontal auger boring installations can make use of ductile iron pipes, as they are recognized for their robustness and durability, rendering them a dependable choice for various installation techniques. This particular approach entails drilling a hole horizontally beneath the ground and subsequently inserting the pipe through said hole. Ductile iron pipes possess the capacity to endure the forces involved in this procedure and sustain their structural integrity. Moreover, they exhibit a high level of resistance to corrosion, which proves essential in underground installations, as they may come into contact with moisture and other potentially harmful elements. All in all, ductile iron pipes are a fitting and widely employed alternative for horizontal auger boring installations.
- Q: Can ductile iron pipes be used for both water and wastewater applications?
- Ductile iron pipes are versatile and can be utilized in both water and wastewater settings. Their durability, strength, and corrosion resistance make them appropriate for various purposes such as water distribution, sewage systems, and wastewater treatment plants. These pipes are specifically engineered to endure high pressure and effectively manage the flow of both water and wastewater. Furthermore, ductile iron pipes possess a lengthy lifespan, minimizing the necessity for frequent replacements and maintenance. This attribute renders them a cost-effective alternative for both water and wastewater applications.
- Q: How do ductile iron pipes handle dynamic loads?
- Ductile iron pipes are known for their exceptional strength and durability, which allows them to effectively handle dynamic loads. These pipes have a high resistance to bending and can withstand the pressure and stress exerted on them when subjected to dynamic loads, such as water hammer or ground movement. The unique composition of ductile iron, which includes a small amount of carbon and the addition of magnesium, creates a structure that is both strong and flexible. This combination enables the pipes to flex under the impact of dynamic loads, rather than fracturing or breaking like other materials. Additionally, ductile iron pipes have a high impact resistance, which means they can absorb and distribute the energy generated by dynamic loads throughout their structure. This ability to dissipate energy helps to minimize the risk of pipe failure and ensures the longevity of the pipeline system. Furthermore, ductile iron pipes have excellent stress distribution properties, which means that the load applied to the pipes is evenly dispersed along their length. This helps to prevent localized stress concentrations and reduces the likelihood of damage or failure. In summary, ductile iron pipes are designed to handle dynamic loads efficiently. Their strength, flexibility, impact resistance, and stress distribution properties make them highly suitable for applications where dynamic loads are a concern, ensuring the reliability and longevity of the pipeline system.
- Q: The benefits of ductile iron castings
- Its performance is close to carbon steel, but it has good casting performance, easy molding, better machinability than cast steel, better heat resistance, corrosion resistance and wear resistance than steel. And a very important one: cheap.
- Q: How are leaks repaired in ductile iron pipe?
- Leaks in ductile iron pipe are typically repaired by cleaning and preparing the area around the leak, applying a suitable sealant or epoxy, and then securely fastening a repair clamp over the affected area. This clamp provides a tight seal and prevents any further leakage.
- Q: Are ductile iron pipes resistant to chemicals?
- Yes, ductile iron pipes are highly resistant to a wide range of chemicals, making them suitable for various applications involving corrosive substances.
- Q: What are some common applications for ductile iron pipe?
- Ductile iron pipe is commonly used in various applications including water and wastewater systems, underground drainage systems, oil and gas pipelines, industrial piping systems, and fire protection systems. Its strength, durability, and resistance to corrosion make it suitable for these applications, ensuring reliable and long-lasting performance.
- Q: What is the expected corrosion protection system for ductile iron pipes?
- Typically, the expected corrosion protection system for ductile iron pipes involves a combination of external coatings, internal linings, and cathodic protection. To protect against corrosion, external coatings are applied to the pipe's exterior surface. These coatings, usually fusion-bonded epoxy, polyethylene, or polyurethane, act as a barrier against corrosion from soil, water, and chemicals. Furthermore, they play a crucial role in prolonging the pipe's lifespan. In order to safeguard against corrosion caused by the transported fluid, internal linings are applied to the pipe's interior surface. These linings, which can be made of cement mortar, epoxy, or polyurethane, provide a smooth and protective layer that prevents the formation of rust and scale. Cathodic protection is an electrochemical technique employed to shield ductile iron pipes from corrosion. It involves the utilization of sacrificial anodes or impressed current systems to generate a protective electrical current that counteracts the corrosion process. By employing this method, the formation of rust is prevented, thereby extending the pipe's longevity. It is important to acknowledge that the specific corrosion protection system for ductile iron pipes may differ depending on the application and environmental factors. To determine the appropriate corrosion protection system for a specific ductile iron pipe installation, consulting with corrosion experts and adhering to industry standards and guidelines is of utmost importance.
- Q: What is the difference between flexible joint mechanism and seismic cast iron pipe DN100 and ductile iron pipe?
- Nodular cast iron has high strength and strong plasticity. The tensile strength of ductile iron is twice that of gray iron, and the yield strength even exceeds that of cast steel.
- Q: How can stainless steel pipes and ductile iron pipes be joined?
- Or with a gland type expansion joint, by tightening the pressure plate bolts, sealing pipe fittings and pipe wall, so as to achieve sealing, while retractable function
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DUCTILE IRON PIPES C Class DN500
- 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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