DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN900

DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN900

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 32 pc

Supply Capability:: 3000 pc/month

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Duct Iron Pipe DI Pipe ISO 2531 DN 80-2000mm K12

· Material : Ductile Cast Iron

· Size Range : DN 80mm to DN 2000mm

· Unit Effective Length : 6m or 5.7m

· Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007

· Annual capacity : 200,000 tons

· Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.

· Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179

· Special requirements on external coating and internal lining can be applied

· We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.

Additional Parts:

Each pipe is strictly inspected according to related standard to ensure permanently high performance.
Easy Installation at site and service free for life
Long Service Lifespan
Quotation will arrive you within 24hours once we get your inquiry.
We guarantee offering you a competitive price.
A copy of original inspection reports of pipes will be offered after shipment.
Photos of loading process will be sent to the customer after shipment effect.
We will follow-up the delivery progress after shipment effect and update to the customer on weekly basis.

Q: Are ductile iron pipes suitable for use in cold climates?: Ductile iron pipes are well-suited for cold climates due to their exceptional strength and durability. This makes them a reliable choice for various applications, such as water supply systems, sewage systems, and industrial piping. In freezing temperatures, ductile iron pipes are highly resistant to cracking or breaking. This is because of their unique metallurgical composition and structure. They possess a high tensile strength and can endure the expansion and contraction resulting from freezing and thawing cycles. Additionally, their smooth internal surface prevents ice or sediment buildup, ensuring efficient flow and reducing the risk of blockages. Overall, ductile iron pipes are a dependable and appropriate option for use in cold climates.

Q: The difference between cast iron pipe and ductile iron pipe: Cast iron pipes, also known as pig iron pipes, ordinary gray iron. Often used in socket connection, the sealing material is usually cement rigid interface.

Q: How are ductile iron pipes protected against internal corrosion?: Ductile iron pipes are protected against internal corrosion through a process called cement mortar lining. This involves applying a layer of cement mortar to the inner surface of the pipe, creating a protective barrier between the iron and the water flowing through it. This lining helps to prevent the formation of rust, corrosion, and scale build-up, ensuring the longevity and durability of the pipes.

Q: What's the difference between grey cast iron pipe and ductile iron pipe?: Spheroidal graphite cast iron and ordinary cast iron contain graphite monomer, that is to say, cast iron is a mixture of iron and graphite. The graphite in ordinary cast iron is flaky, and the strength of graphite is very low, so there are many flakes of voids in the cast iron, so the strength of ordinary cast iron is lower and more brittle. Graphite in graphite cast iron is spherical, equivalent to the existence of many spherical voids in cast iron. The effect of spherical voids on the strength of cast iron is much smaller than that of sheet voids, so the strength of nodular cast iron is much higher than that of ordinary cast iron.

Q: What are the different methods for testing ductile iron pipe?: There are several methods available for testing ductile iron pipe to ensure its quality and reliability. These methods include: 1. Hydrostatic Testing: This is the most common method used for testing ductile iron pipe. It involves filling the pipe with water and pressurizing it to a specified level. The pipe is then inspected for any leaks or deformations under the applied pressure. Hydrostatic testing helps determine the pipe's ability to withstand internal pressure without failure. 2. Tensile Testing: This method involves subjecting a sample of the ductile iron pipe to a gradually increasing tensile load until it fractures. The test measures the ultimate tensile strength, yield strength, and elongation of the material. Tensile testing helps evaluate the pipe's mechanical properties and its ability to withstand tension without breaking. 3. Hardness Testing: This method measures the hardness of the ductile iron pipe using various techniques such as Brinell, Rockwell, or Vickers hardness tests. Hardness testing provides information about the material's resistance to deformation, wear, and fatigue. It helps assess the pipe's durability and resistance to external forces. 4. Impact Testing: This method involves striking a notched sample of the ductile iron pipe with a pendulum or falling weight to measure its impact resistance. The test determines the material's ability to absorb energy during sudden loading or impact. Impact testing helps evaluate the pipe's ability to withstand accidental impacts or dynamic loads. 5. Ultrasonic Testing: This non-destructive testing method uses high-frequency sound waves to detect internal defects or discontinuities in the ductile iron pipe. Ultrasonic testing can identify voids, cracks, or inclusions that may affect the pipe's structural integrity. It helps ensure the pipe's soundness and reliability. 6. Magnetic Particle Testing: This method is primarily used for detecting surface or near-surface defects in the ductile iron pipe. It involves applying a magnetic field to the pipe and then applying magnetic particles to the surface. Any defects present will cause the magnetic particles to gather and form visible indications. Magnetic particle testing helps identify surface cracks, laps, or other defects that may affect the pipe's performance. These different testing methods help ensure that ductile iron pipe meets industry standards and specifications, ensuring its quality and reliability in various applications.

Q: Are ductile iron pipes resistant to alkaline attacks?: Yes, ductile iron pipes are generally resistant to alkaline attacks. The high carbon content and unique composition of ductile iron make it highly resistant to corrosion caused by alkaline substances. This resistance allows ductile iron pipes to be used in a variety of applications where alkaline conditions exist, such as wastewater treatment plants and alkaline soil environments. However, it is important to note that the specific resistance may vary depending on the concentration and duration of exposure to alkaline substances.

Q: Can ductile iron pipes be used in sewage treatment plants?: Yes, ductile iron pipes can be used in sewage treatment plants. Ductile iron pipes are a commonly used material in sewage systems due to their durability, strength, and corrosion resistance. They are able to withstand the harsh conditions often present in sewage treatment plants, such as corrosive wastewater and high-pressure environments. Ductile iron pipes are also highly resistant to cracking and provide long-term reliability, making them a suitable choice for sewage treatment plants where a reliable and efficient sewage system is crucial.

Q: Are ductile iron pipes suitable for underground applications?: Indeed, underground applications are well-suited for ductile iron pipes. Renowned for their durability, strength, and resistance to corrosion, these pipes emerge as an excellent option for installations that lie beneath the surface. Their ability to withstand immense loads, ground shifts, and external pressure further solidifies their appropriateness for burial underground. Moreover, given the challenges associated with access and maintenance in underground scenarios, the fact that ductile iron pipes boast a lifespan of over 100 years becomes invaluable. In conclusion, the reliability and suitability of ductile iron pipes for underground applications are underscored by their robustness and longevity.

Q: How can the steel plastic composite pipe be connected with the cast iron pipe?: The hoop has the advantages of beautiful appearance, convenient operation, strong clamping force, good sealing performance, etc.. Mainly used for connecting and fastening vehicle, ship, diesel engine, gasoline engine, machine tools, fire, and other machinery and equipment, chemical equipment general nylon hose, plastic hose, hose cloth, water interface and seal etc..

Q: What is the content of silicon in silicon molybdenum ductile iron?: Silicon molybdenum material, similar to the United States IDM5381, 5402 and other brands, engaged in automotive components (such as turbocharger parts), and other heat resistant parts have been exposed to high temperature

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