DUCTILE IRON PIPES K8 DN450
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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 use in chemical storage tanks?
- No, ductile iron pipes are not suitable for use in chemical storage tanks.
- Q: Ductile iron pipe joint damage, water leakage, want to see the connection with other pipe fittings, how to operate?!
- The ductile iron pipe can be used as the plugging device for the big part
- Q: Can ductile iron pipes be used for water supply in remote areas?
- Ductile iron pipes are indeed suitable for water supply in remote areas. Renowned for their strength, durability, and versatility, these pipes are capable of serving various purposes, including water supply systems. Notably, their exceptional resistance to corrosion and ability to endure harsh environmental conditions renders them an ideal choice for remote areas with limited maintenance and repair services. Moreover, in comparison to alternative materials, ductile iron pipes boast a significantly longer lifespan, ensuring the sustained operation of water supply systems in remote areas. In summary, the reliability of ductile iron pipes for water supply in remote areas is attributable to their resilience, resistance to corrosion, and extended lifespan.
- Q: How does ductile iron pipe perform in seismic areas?
- Ductile iron pipe performs well in seismic areas due to its inherent strength and flexibility. Its ability to withstand ground movement and vibrations makes it a reliable choice for underground infrastructure in regions prone to earthquakes. Additionally, its robust construction and high resistance to corrosion and damage ensure its durability and safety even in seismically active zones.
- 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: How are ductile iron pipes tested for quality?
- Ductile iron pipes are tested for quality through various methods, including hydrostatic pressure testing, dimensional inspection, and mechanical properties testing. Hydrostatic pressure testing involves subjecting the pipes to water pressure to ensure they can withstand the intended operating conditions without any leakage or failure. Dimensional inspection assesses the pipes' dimensions, such as diameter, wall thickness, and length, to ensure they meet the specified standards. Mechanical properties testing evaluates the pipes' tensile strength, yield strength, and elongation to ensure they possess the necessary strength and flexibility. Overall, these rigorous testing procedures help ensure the high quality and reliability of ductile iron pipes.
- Q: How is ductile iron different from cast iron?
- Ductile iron and cast iron are two iron alloys with varying compositions, properties, and uses. The primary distinction between the two lies in their microstructure and mechanical properties. Ductile iron, also known as spheroidal graphite iron or nodular cast iron, is a type of cast iron that undergoes an extra treatment process to enhance its strength and ductility. This is achieved by adding small amounts of magnesium to the molten iron during casting, resulting in the formation of graphite nodules throughout the material. These nodules act as stress raisers, preventing crack propagation and making ductile iron more resistant to fractures and more flexible compared to cast iron. In contrast, cast iron is an iron alloy with a higher carbon content than ductile iron. This higher carbon content leads to the formation of graphite flakes within the material, giving cast iron its characteristic brittleness. Due to its brittleness, cast iron is more prone to cracking and less flexible than ductile iron. However, cast iron exhibits excellent compressive strength and is highly resistant to wear and abrasion, making it suitable for applications where strength and durability are crucial, such as engine blocks, pipes, and manhole covers. Another difference between ductile iron and cast iron can be observed in their machinability. Ductile iron is generally easier to machine due to its lower carbon content and the presence of graphite nodules, which act as lubricants during the cutting process. On the other hand, the presence of graphite flakes in cast iron can cause tool wear and result in a poor surface finish during machining. In summary, ductile iron and cast iron differ in their microstructure, mechanical properties, and applications. Ductile iron offers improved ductility and fracture resistance, making it suitable for applications that require flexibility and impact resistance. Cast iron, with its higher carbon content and graphite flakes, provides excellent compressive strength and wear resistance, making it ideal for applications that demand strength and durability.
- Q: What is the expected bending stress capacity of ductile iron pipes?
- Ductile iron pipes exhibit varying expected bending stress capacities due to factors such as diameter, wall thickness, and the grade of ductile iron utilized. However, in general, ductile iron pipes possess superior bending stress capacities compared to alternative pipe materials. Ductile iron pipes are renowned for their remarkable tensile strength and flexibility, enabling them to endure substantial bending stresses. Determining the precise bending stress capacity involves comprehensive testing and analysis, taking into account the pipe's mechanical properties, dimensions, and maximum allowable deflection. It is crucial to evaluate the bending stress capacity of ductile iron pipes in accordance with established industry standards and guidelines. These may involve standards like the American Water Works Association (AWWA) C150 or the International Organization for Standardization (ISO) 2531, which outline specifications and testing methodologies for ductile iron pipes. Ultimately, the anticipated bending stress capacity of ductile iron pipes hinges upon various factors and necessitates an assessment tailored to the specific application requirements. It must consider industry standards and guidelines to ensure precise and dependable results.
- Q: The difference between ductile iron pipe and steel pipe used in pipe jacking
- 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.
- Q: Are ductile iron pipes suitable for use in seismic areas?
- Yes, ductile iron pipes are suitable for use in seismic areas. Ductile iron has high strength and flexibility, making it resistant to seismic forces. It is able to withstand ground movements and vibrations during earthquakes without significant damage, making it a reliable choice for water and wastewater infrastructure in seismic areas.
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DUCTILE IRON PIPES K8 DN450
- Ref Price:
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
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- Supply Capability:
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