Ductile iron pipe DN80-DN2600 goods in stock wall thickness K7-K12/C25-C40 as your required Standard:ISO2531/EN545/EN598
Brand TOPSUN
Product origin China
Delivery time 30 days
Supply capacity 10,000 tons per year
Ductile iron pipes, ranging from DN80 to DN2600, are readily available with customizable wall thicknesses (K7-K12) and pressure classes (C25-C40), fully compliant with ISO2531, EN545, and EN598 standards. These high-performance pipes are widely used in municipal water supply, sewage systems, and industrial fluid transport, with proven applications in numerous urban infrastructure projects across Europe and Asia. Their superior corrosion resistance and mechanical strength ensure long-term reliability.
Backed by advanced automated production lines and rigorous quality control, we utilize state-of-the-art centrifugal casting technology to guarantee precise dimensional accuracy and consistent performance. Our technical team continuously optimizes material compositions and coating processes (including C25-C40 cement linings) to meet specific project requirements, while maintaining full certification for all international standards.
With annual sales exceeding 50,000 tons and strategic global warehouse networks, we consistently stock over 20,000 metric tons of DN80-DN2600 pipes to ensure immediate delivery. Our inventory flexibility allows clients to source K7-K12 graded pipes for emergency repairs and large-scale projects simultaneously, supported by documented supply collaborations with major utilities and engineering firms worldwide.

| Standard | Product | Nominal Diameter DN(mm) | Tensile Strength N/mm2 | Yield Strength N/mm2 | Elongation% | Hardness HB |
| ISO2531/EN545/GB13295 | Ductile lron Pipes | DN80-1000mm | ≥420 | ≥300 | 10 | ≤230 |
| DN1100-2600mm | ≥300 | 7 | ||||
| Ductile lron Fittings | DN80-2600mm | ≥420 | ≥300 | 5 | ≤250 |
Standard of Hydrostatic Testing Pressure (Class K9)
| Standard | Product | Nominal Diameter DN(mm) | Testing Pressure(Bar) | Time( second) |
| ISO2531/EN545/GB13295 | Ductile lron Pipes | DN80-300mm | 50 | ≥10 |
| DN350-600mm | 40 | |||
| DN700-1000mm | 32 | |||
| DN1100-2000mm | 25 | |||
| DN2200-2600mm | 18 | |||
| Ductile lron Fittings | DN80-300mm | 25 | ≥10 | |
| DN350-600mm | 16 | |||
| DN700-2600mm | 10 |
Our comprehensive stock of ductile iron pipes, ranging from DN80 to DN2600, offers unparalleled versatility and reliability for water and wastewater transmission. Manufactured to the highest international standards, including ISO 2531, EN 545, and EN 598, these pipes guarantee performance for potable water, sewerage, and industrial applications.
A key feature is the availability of various wall thickness classes, from K7 to K12 and pressure classes C25 to C40. This allows for precise engineering selection to withstand specific internal pressures and external loads, including deep burial and heavy traffic conditions. The inherent strength and durability of ductile iron provide excellent resistance to impact, crushing, and point loads.
The pipes are renowned for their high corrosion resistance, often enhanced by cement mortar lining (C25/C40) and external zinc/epoxy coatings as per standards. Their superior hydraulic characteristics, thanks to a smooth internal lining and generous diameter, ensure high flow capacity and reduced pumping costs. Additionally, the robust push-fit joint system, typically using a T-type gasket, ensures a quick, simple, and permanently leak-tight installation, saving time and labor. With a long service life exceeding 100 years, ductile iron pipe remains the sustainable and economical choice for modern infrastructure.
Our readily available stock of ductile iron pipes, from DN80 to DN2600, is engineered for a wide spectrum of critical infrastructure projects. Conforming to ISO 2531, EN 545, and EN 598 standards, these pipes are the preferred solution for municipal potable water distribution networks, ensuring safe and reliable water delivery under pressures specified by C25-C40 classes. Their robust construction, with selectable wall thicknesses from K7 to K12, makes them equally suitable for sewerage mains and gravity flow systems, effectively resisting ground loads and abrasion.
Furthermore, these pipes are ideal for industrial process water, firefighting systems, and irrigation schemes, where their corrosion resistance and durability are paramount. The availability of larger diameters (DN1200-DN2600) is essential for primary transmission mains, intake and outfall lines, and pipeline relining projects. Their high mechanical strength ensures integrity in challenging environments, including unstable soils and areas with heavy traffic. The certified linings and joints guarantee leak-free performance, protecting groundwater resources. With this versatility and immediate availability across the full size and pressure class range, our ductile iron pipes provide a dependable, long-life solution for virtually any fluid conveyance need.

Our company supplies a comprehensive and readily available stock of high-quality ductile iron pipes, catering to a vast range of project requirements. The product line encompasses an extensive size spectrum from DN80 to DN2600, ensuring we can support everything from small-scale distribution lines to major transmission mains.
A key feature of our offering is the flexibility in pressure and wall thickness specifications. We provide pipes in wall thickness classes K7 through K12 and pressure classes from C25 to C40, allowing for precise engineering selection based on specific internal pressure demands and external load conditions, including deep burial and heavy traffic.
All our ducts are manufactured in full compliance with the most stringent international standards, including ISO 2531, EN 545, and EN 598. This certification guarantees their suitability for a wide array of applications, from potable water transmission (EN 545) to sewerage systems (EN 598). The pipes' inherent strength is derived from their spheroidal graphite microstructure, which provides an exceptional combination of toughness, durability, and impact resistance—similar to steel while retaining the corrosion performance of cast iron.
Standard fittings include a certified cement mortar lining for superior hydraulic flow and corrosion protection internally, and an external zinc or epoxy coating. They are equipped with a user-friendly push-fit T-type joint system, ensuring a rapid, reliable, and permanently leak-tight installation. With immediate availability across this full range, we provide a robust, long-service-life solution for the global water and wastewater industry.
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.








