DUCTILE IRON PIPE DN450

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Specification:

1) The standard of pipe: ISO2531:1998, K9

2) Effective length: 6m

3) Inner cement line: Portland cement line as per ISO4179

4) Zinc coating: at least 130g/m² as per ISO8179

5) Bitumen painting: at least 70um as per ISO8179

6) With 100% quantity of NBR ring, or SBR ring, or EPDM ring as per ISO4633

7) DN80mm-800mm

8) High strength, lighter than grey iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life tome about 100 yeas

9) Produced by Hangzhou chunfeng machine

10) Checked by automatic inspection equipment

11) Composition:

Chemical composition
Chemical composition	Ductile Cast Iron Pipe (%)	Grey iron pipe (%)	Steel pipe (%)
C	3.5-4.0	3.2-3.8	0.1-0.2
Si	1.9-2.6	1.4-2.2	0.15-0.4
Mn	0.15-0.45	0.4-0.6	0.3-0.6
P	≤0.06	≤0.3	0.02-0.03
S	≤0.02	≤0.1	0.02-0.03
Mg	0.03-0.06

12) Feature:

Mechanical properties
	Ductile Cast Iron Pipe	Grey Iron Pipe	Steel Pipe
Tensile Strength(Mpa)	≥420	150-260	≥400
Yield Strength(Mpa)	≥300	No Confirmation	No Confirmation
Bending Strength(Mpa)	≥590	200-360	≥400
Elongation (%)	≥10	Neglected	≥18
Brinell Hardness(HBS)	≤230	≤230	About 140

13) T type mechanical joint

14) Packing: in bulk or container

Q:Can ductile iron pipe be used for oil and gas transmission pipelines?: Yes, ductile iron pipe can be used for oil and gas transmission pipelines. It offers excellent strength, durability, and corrosion resistance, making it suitable for the transportation of various fluids, including oil and gas. However, other factors such as specific project requirements, operating conditions, and regulatory standards should also be considered before making a final decision.

Q:What is the average cost of ductile iron pipe?: The average cost of ductile iron pipe can vary depending on factors such as the size, length, and location. However, as of 2021, the average cost for ductile iron pipe ranges from $10 to $20 per linear foot.

Q:Which is better, ductile iron pipe and spray plastic pipe?: Ductile cast iron: the use of more than 18 by adding nodulizer, after centrifugal ductile cast iron machine high speed centrifugal cast pipe, called "ductile" (Ductile Cast Iron Pipes), referred to as ball pipe, ductile iron pipe and ductile iron pipe etc.. The utility model is mainly used for conveying water, and is an ideal choice for tap water pipes.

Q:The difference between ductile iron pipe and UPVC drain pipe: UPVC tube or rigid polyvinyl chloride pipe, U-PVC pipe, is a kind of strong corrosion resistance, acid and alkali salt oil medium erosion, light quality, has certain mechanical strength, good hydraulic conditions, convenient installation, but easy to aging, high temperature resistant, but can not withstand the impact, applied to the domestic water system, DN50 pipe connection DN65, using a ring connected with the above.

Q:What are the risks in the process of conveying ductile iron pipes?: Lifting: be careful lifting pipe, don't let the pipe shaking, lifting pipe by wire rope, sling and special sling, wire rope no single, for the protection of pipe coating, rubber or similar materials can be used to wrap up the rope. The use of hook, for the protection of the cement lining layer is not damaged, will hook with rubber or similar material wrapped up, especially in the hoisting of large diameter pipe, will not be fixed in the socket with hook in end strip or pipes.

Q:How are ductile iron pipes repaired in case of damage?: Ductile iron pipes are commonly used in various applications due to their high durability and strength. However, like any other materials, they can experience damage over time due to external factors or internal corrosion. In such cases, there are several methods available for repairing ductile iron pipes. One common method is known as the trenchless repair technique. This method involves repairing the damaged section of the pipe without the need for extensive excavation. It typically includes the use of specialized equipment to access the damaged area and carry out the necessary repairs. This technique is particularly beneficial as it reduces disruption to the surrounding area and minimizes costs associated with excavation. Another method for repairing ductile iron pipes is the use of epoxy lining. This technique involves applying a layer of epoxy resin to the interior surface of the pipe, effectively sealing any cracks or leaks. Epoxy lining is an effective and cost-efficient solution, as it provides a long-lasting repair and improves the overall condition of the pipe. In cases where the damage is severe or extensive, the damaged section of the ductile iron pipe may need to be replaced. This typically involves cutting out the damaged portion and installing a new section of pipe. The replacement process may require excavation and can be more time-consuming and costly compared to other repair methods. However, it ensures a complete and permanent solution for the damaged pipe. It is worth noting that the specific repair method chosen for ductile iron pipes depends on the extent of the damage, accessibility, and other factors. Professional assessment and inspection are crucial to determine the most suitable repair technique. Consulting with experienced pipeline repair specialists or civil engineers is highly recommended to ensure the most effective and durable repair solution for ductile iron pipes.

Q:It's not easy to drill ductile iron with cobalt high speed steel bit. Please help to point it out: The material can be annealed and the process is simple, that is, heating the workpiece and cooling it naturally. In this way, the hardness of the workpiece can be reduced.

Q:What are the different types of linings available for ductile iron pipe?: There are several different types of linings available for ductile iron pipe, each with its own advantages and applications. 1. Cement mortar lining: This is one of the most common linings used for ductile iron pipes. It consists of a layer of cement mortar applied to the interior surface of the pipe. Cement mortar lining provides excellent resistance to corrosion and chemical attack, making it suitable for a wide range of applications, including potable water distribution, wastewater conveyance, and industrial pipelines. It also helps to reduce friction and turbulence within the pipe, improving flow efficiency. 2. Polyethylene lining: Polyethylene linings are often used in ductile iron pipes for applications where corrosion resistance is a primary concern. This lining consists of a layer of high-density polyethylene (HDPE) that is either extruded or sprayed onto the pipe's inner surface. Polyethylene lining provides superior resistance to corrosion, abrasion, and chemical attack, making it ideal for transporting aggressive fluids, such as saltwater, chemicals, or industrial waste. 3. Polyurethane lining: Polyurethane linings are commonly used in ductile iron pipes for applications where enhanced protection against abrasive wear is required. This lining is formed by spraying or pouring a layer of polyurethane onto the inner surface of the pipe. Polyurethane lining offers excellent resistance to abrasion, impact, and chemical attack, making it suitable for conveying abrasive slurries, mining applications, and other high-wear environments. 4. Epoxy lining: Epoxy linings are applied to ductile iron pipes to provide a protective barrier against corrosion and chemical attack. This lining is typically formed by applying a layer of epoxy resin to the pipe's inner surface through a process known as centrifugal casting or electrostatic spraying. Epoxy lining offers excellent adhesion and resistance to corrosion, making it suitable for various applications, including potable water distribution, wastewater treatment, and industrial pipelines. 5. Zinc lining: Zinc linings are used in ductile iron pipes to provide cathodic protection against corrosion. This lining involves applying a layer of zinc to the pipe's inner surface, either through hot-dip galvanizing or by electroplating. Zinc lining acts as a sacrificial anode, corroding preferentially to the iron pipe and protecting it from corrosion. It is commonly used in applications where the pipe is exposed to highly corrosive environments, such as seawater or acidic soils. Overall, the choice of lining for ductile iron pipes depends on the specific requirements of the application, including the type of fluid being transported, the level of corrosion resistance needed, and the potential for abrasive wear. Consulting with industry experts and considering factors such as cost, longevity, and maintenance requirements can help determine the most suitable lining option for a particular project.

Q:What is the maximum temperature that ductile iron pipe can handle?: The maximum temperature that ductile iron pipe can handle depends on various factors such as the specific grade of ductile iron, the duration of exposure to high temperatures, and the presence of any external factors like corrosive environments. Generally, ductile iron pipes can handle temperatures up to 400-450 degrees Fahrenheit (204-232 degrees Celsius) for short durations. However, it is important to consult the manufacturer's specifications and guidelines to determine the specific maximum temperature limits for a particular grade of ductile iron pipe. Additionally, it is recommended to consider the effects of thermal expansion, potential loss of mechanical properties, and any additional protective measures that may be required at elevated temperatures.

Q:What are the meanings of cast iron pipe wall thicknesses LA, A and B respectively?: Cast iron pipes (Cast, Iron, Pipe), cast cast pipe. Cast iron pipes are used for water supply, drainage and gas transmission lines. They include cast iron pipes and pipe fittings. Labor intensity is small. According to the casting method, it is divided into continuous cast iron pipe and centrifugal cast iron pipe, in which the centrifugal cast iron pipe is divided into sand mould and metal type two kinds. Divided into gray cast iron pipe and nodular cast iron pipe according to different material. According to the interface form, it is divided into flexible interface, flange interface, self anchored interface, rigid interface and so on. Among them, the flexible iron pipes rubber sealing ring; flange interface cast iron pipe flange fixed in the rubber pad, the flange gasket sealing; rigid interface cast iron pipe socket is large, straight pipe is inserted, sealed with cement, this technology has been basically eliminated.

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