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 new technologies are there for the installation of ductile iron pipes?
- At present, the international general no faucet pipe hoop straight pipe and fittings (i.e. new flexible joint cast iron drainage pipes and fittings of the thesis), according to the interface type is divided into A type flexible interface (flange gland connection) and type W (flexible interface coupling connection) two, referred to as A type and W type.1.1 new flexible joint cast iron drainage pipe by centrifugal casting technology, has a compact structure, pipe wall thickness, the outer wall is smooth, no trachoma and slag, the tensile strength and compressive strength are high, products with stable chemical composition, corrosion resistance, fire retardant non-toxic, comply with fire safety requirements of environmental protection, no noise, no deformation, life. Long use.Type 1.2A: type A tube with high strength, low noise, good fireproof performance, long service life, with the advantages of flexibility and good seismic performance, but in the actual project that socket joints need larger installation space and the tube body is heavy, consumption of steel, especially in high-rise buildings it is difficult to accept by construction.
- Q: Are ductile iron pipes suitable for mining applications?
- Yes, ductile iron pipes are suitable for mining applications. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them ideal for underground mining operations. They can withstand high pressure, heavy loads, and abrasive materials commonly found in mining environments. Additionally, their flexible nature allows for easy installation and maintenance in challenging mining conditions.
- Q: Ductile iron pipes perennial bubbles in the water will rot it
- From the hydraulic performance, because ductile pipe specifications generally refers to the inner diameter of PE pipe diameter specifications generally refers to the same specifications, because under the condition of ductile pipe can achieve greater runoff; from the installation and maintenance cost, ductile pipe have more favorable price. The inner wall of zinc spray, anti-corrosion materials such as cement mortar, ductile iron pipe perennial bubbles in the water will not be rotten.
- Q: Can ductile iron pipes be used for bridge drainage systems?
- Indeed, bridge drainage systems can make use of ductile iron pipes. Ductile iron, a resilient material, finds widespread use in numerous applications, such as water and sewage systems, owing to its strength and durability. With exceptional resistance to corrosion, it is capable of enduring substantial loads and pressure, rendering it an ideal choice for bridge drainage systems. Moreover, the smooth inner surface of ductile iron pipes facilitates efficient water flow, preventing the occurrence of clogs and blockages. Therefore, given their robustness, longevity, and capacity to handle the necessary water flow, ductile iron pipes prove to be a fitting option for bridge drainage systems.
- Q: Can ductile iron pipes be made into clear tubes?
- Of course, you can also use as a pipe, but because of the appearance of cast iron pipe is not very beautiful, but relatively brittle, by external impact or bad insulation cold winter break, so according to your use of the environment to determine.
- Q: Can ductile iron pipe be used for compressed air systems?
- Yes, ductile iron pipe can be used for compressed air systems. Ductile iron is known for its durability and high strength, making it suitable for handling the pressure requirements of compressed air systems. However, it is important to consider factors such as pipe sizing, pressure ratings, and compatibility with other system components to ensure safe and efficient operation.
- Q: How is ductile iron different from cast iron?
- Ductile iron and cast iron are two types of iron alloys that differ in terms of their composition, properties, and applications. The main difference between ductile iron and cast iron lies in their microstructure and mechanical properties. Ductile iron, also known as nodular cast iron or spheroidal graphite iron, is a type of cast iron that undergoes an additional treatment process to enhance its strength and ductility. This is achieved by adding small amounts of magnesium to the molten iron during the casting process, which results in the formation of graphite nodules throughout the material. These graphite nodules act as stress raisers and prevent the propagation of cracks, making ductile iron more resistant to fractures and providing it with improved ductility compared to cast iron. In contrast, cast iron is a type of iron alloy that contains 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 brittle nature. Due to its brittleness, cast iron is more prone to cracking and less flexible than ductile iron. However, cast iron has excellent compressive strength and is highly resistant to wear and abrasion, making it suitable for applications where strength and durability are important, such as in engine blocks, pipes, and manhole covers. Another difference between ductile iron and cast iron is 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 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 resistance to fractures, making it suitable for applications requiring 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 requiring strength and durability.
- Q: How does ductile iron pipe compare to PVC pipe in terms of strength?
- Ductile iron pipe is generally considered to be stronger than PVC pipe. Ductile iron pipe is made of iron and carbon, which gives it a high tensile strength and resistance to breakage. It can withstand high pressures and is commonly used in heavy-duty applications such as water mains, sewer lines, and industrial piping. On the other hand, PVC pipe is made of a plastic material called polyvinyl chloride. While PVC pipe is lightweight and easy to handle, it is not as strong as ductile iron pipe. PVC pipe is typically used in low-pressure applications such as household plumbing, irrigation systems, and drainage pipes. When comparing the strength of ductile iron pipe to PVC pipe, the former has a higher capacity to handle heavy loads, withstand ground movement, and resist damage from external factors like rocks or tree roots. Ductile iron pipe is also more durable and has a longer lifespan compared to PVC pipe. However, it is important to note that the choice between ductile iron pipe and PVC pipe ultimately depends on the specific requirements of the project. Factors such as cost, environmental conditions, installation ease, and required longevity should all be taken into consideration when deciding which type of pipe to use.
- Q: What is the content of silicon in silicon molybdenum ductile iron?
- Customers generally give a wide range, most of the national standard "reference" the United States of similar brands suspected. Especially 3.75-4.25% Si too big. We can narrow the scope according to their actual situationHowever, the high Si content of the end we can pregnant before Si% and several birth control adjustment. I personally think that many times easy inoculation, increased nucleation; more than 517 in terms of strength, the lower the content of Mn, some clients request F content in more than 95%, but do not worry about the intensity of the problem, even if the F matrix as long as the components of control will be above 517. Spheroidizer we can choose good quality, spheroidization time have good control over 60S,
- Q: Disadvantages of ductile iron pipes
- In most municipal applications, such as water, brine, steam, ductile iron has more corrosion resistance and oxidation resistance than cast steel. Because of the spheroidal graphite microstructure of nodular cast iron, nodular cast iron is superior to cast steel in reducing vibration ability, so it is more beneficial to reduce stress. An important reason for choosing ductile iron is that ductile iron costs less than cast steel.
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DUCTILE IRON PIPES C Class DN400
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
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