EN598 En545 ISO2531 Black Ductile Cast Iron Pipes C40 C30 C25 K7 K8 K9 Ductile Iron Pipe for Water
Brand TOPSUN
Product origin China
Delivery time 30 days
Supply capacity 10,000 tons per year
Our EN598, EN545, and ISO2531 certified ductile iron pipes, including grades C25, C30, C40, and classes K7, K8, K9, are engineered for demanding water supply applications. These pipes ensure reliable performance in municipal water networks, industrial water systems, and sewage transportation, guaranteeing long-term durability and leak-proof safety. With a proven track record, we have supplied these pipes for large-scale urban infrastructure projects and international waterworks, demonstrating their adaptability across diverse environments and strict regulatory standards.
Backed by advanced centrifugal casting technology and automated production lines, we maintain stringent quality control from raw material selection to final hydrostatic testing. Our manufacturing expertise allows us to offer a comprehensive range of specifications, including various diameters, lengths, and pressure classes (K7, K8, K9), to meet customized project requirements. This robust production capability ensures consistent output of high-quality C30, C40 pipes that exceed industry benchmarks for strength and corrosion resistance.
Supported by substantial annual sales and extensive inventory levels, we provide timely delivery and competitive pricing for global clients. Our efficient supply chain and strategic stockpiling of popular grades like C25, K9 pipes minimize lead times, facilitating swift project execution. Whether for large tenders or urgent orders, our reliable stock and logistics network ensure that your water infrastructure projects proceed without interruption, making us a trusted partner in the ductile iron pipe market.
Item | Ductile iron pipe |
Class | K9, K10, K11, K12，K9, K8, C25, C30, C40, etc. |
Pipe Joint | push-on joint(Tyton joint), K type joint, self-restrained joint |
Size | Outside Diameter: 98mm-1255mm Inside Diameter: 80mm-1200mm Wall Thickness: 6mm-153mm Length: 6m, cut to 5.7m, or as required. |
Surface | External bitumen coating, or as required. |
Application | Water supply project, drainage, sewage, irrigation, water pipeline, etc. |
Package | Standard export package, or as required. |
Price term | FOB, EXW,CIF, CFR, etc. |
Payment | T/T, L/C, Western Union, etc. |
Certificates | ISO, CE, BSI, WRAS |
1) The standard of pipe: ISO 2531, EN545 , EN598.
2) Pipe class: K9, C40, C30, C25, etc.
3) Pipe joint: push-on joint(Tyton joint), K type joint, self-restrained joint
4) Effective length: in general, the pipe length is 6m for bulk shipment and 5.7m for container shipment.
5) Internal lining: cement mortar lining as per ISO4179
6) Zinc coating: at least 130g/m2 as per ISO 8179
7) Bitumen painting: at least 70um as per ISO 8179
8) Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber ring as per ISO4633
9) DN 80 - 2,600 mm
10) High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life time
11) Checked by automatic inspection equipment
12) Chemical composition: (%)
3. a) C: 3.5 - 4.0
4. b) Si: 1.9 - 2.6
5. c) Mn:0.15 - 0.45
6. c) P: <0.06
7. d) S: <0.02
13) Mechanical properties
1. a) Tensile strength: ≥420MPa
2. b) Yield strength: ≥300Mpa
3. c) Hardness: ≤230HB
4. d) Elongation%: DN80 - 1000 ≥10 DN1200 - 2200 ≥7
1. a) Induction furnace and treated metal (Chemical analysis of raw material, spheroidizing & Nodularity)
2. b) Casting (Visual check and weight check)
3. c) Heat treatment (Micro structure)
4. d) Hydrostatic test (Pressure test)
5. e) Dimensional checks (Checking pipe length and joint, OD, wall thickness, appearance)
6. f) Zinc spraying (Thickness testing)
7. g) Lining and coating (100% visual check, thickness testing randomly)
8. i) Marking and packing (100% visual check)
15) The pipe coating can be customized, such as, zinc-aluminum alloy, PU, etc.
These EN598, EN545, and ISO2531 compliant black ductile iron pipes represent the pinnacle of modern water transmission technology. Their key features include exceptional strength and durability, provided by the spheroidal graphite microstructure, which gives them high resistance to impact, bending, and crushing loads. The pipes are manufactured in various pressure classes (like C25, C30, C40) and thickness classes (K7, K8, K9) to meet diverse project requirements and ground conditions.
A significant advantage is their outstanding corrosion resistance, enhanced by a robust polyethylene sleeving or bituminous coating. The pipes feature a user-friendly push-fit TYTON® joint system, ensuring fast, secure, and leak-free assembly. Furthermore, their high flow capacity, sustained over the long term due to superior internal cement-mortar lining that minimizes biofilm growth and tuberculation, ensures hydraulic efficiency and water quality throughout the pipeline's extended service life, often exceeding 100 years.
Certified to EN598, EN545, and ISO2531 standards, these black ductile iron pipes are the premier choice for a wide range of potable water infrastructure projects. Their primary application is in the construction, renewal, and extension of municipal water supply networks, including large-diameter transmission mains and local distribution lines. The availability of various pressure classes (C25, C30, C40) and thickness classes (K7, K8, K9) allows for precise selection to handle specific operating pressures and demanding external loads, such as those found under roads and in areas with unstable soil conditions.
Beyond public water systems, these pipes are extensively used for industrial water intake and process lines, as well as for firefighting systems where reliability is critical. They are also ideal for raw water conveyance, irrigation schemes, and pressure sewer outfalls. Their high durability and corrosion resistance make them exceptionally suitable for direct burial in challenging environments, including unstable ground and areas with high water tables, ensuring a long-term, leak-free, and sustainable solution for water conveyance.
This product comprises black ductile iron pipes manufactured in full compliance with the international standards EN598, EN545, and ISO2531. These standards certify the material properties, dimensions, pressure ratings, and protective coatings, ensuring superior performance for potable water transmission and distribution systems. The pipes are produced from high-strength ductile cast iron, a material renowned for its exceptional durability, impact resistance, and toughness, derived from its unique spheroidal graphite microstructure.
To meet diverse project requirements, the pipes are available in multiple pressure classes (C25, C30, C40) and nominal thickness classes (K7, K8, K9). This allows for precise engineering selection based on specific operating pressures, external soil loads, and traffic conditions. A key feature is the integrated corrosion protection system, typically consisting of a zinc-aluminum alloy coating followed by a robust bituminous or polyethylene outer sleeve. Internally, a smooth cement-mortar lining is standard, preventing tuberculation, minimizing friction loss, and preserving water quality throughout the system's long service life.
For efficient installation, the pipes are commonly supplied with the user-friendly TYTON® push-fit joint system. This gasket-sealed joint ensures a swift, reliable, and leak-free connection, significantly reducing installation time and labor costs. This combination of material strength, corrosion resistance, and design flexibility makes these pipes an economical and long-lasting solution for modern water infrastructure networks.
CUSTOMERS & MARKET
Q: What's your qualification in this product ?
A: We have been engaged in this industry for decades with seasoned export team. All the product is strictly conformed to the international standard ISO2531:1998,EN545-2002 and other related standard.
Q: How long is your delivery time ?
A: Generally it is 5-10 days if the goods are in stock. or it is 20-30 days if the goods are not in stock, it is according to quantity.
Q: What's your terms of payment ?
A: 30% T/T in advance , balance before shipment or against L/C . And D/P , D/A ,L/C for free options.
Q: What's your trade terms ?
A: FOB , CIF , CFR as per client's requirements.
If you have any other questions , please feel free to contact us.
