ISO2531 k9 100 мм, 150 мм, 200 мм, 450 мм, 500 мм, 600 мм, 1000 мм, 1200 мм, 8 дюймов, диаметр c25, c30, c40, круглая труба из ковкого чугуна для подачи воды

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Price:500,00 $ - 720,00 $
Price in USD:Details


Product Overview


Competitive price, Fast delivery,Huge stock,OEM&ODM,
24 hours real people online service

Product Parameter

All specifications products can be customized according to customer requirements
Product Name
Ductile iron pipe

Outside Diameter: 98mm-1255mm
Inside Diameter: 80mm-1200mm
Wall Thickness: 6mm-153mm
Length: 6m, cut to 5.7m, or as required.
K9, K10, K11, K12,K9, K8, C25, C30, C40, etc.
ISO2531, EN545, EN598, etc
External bitumen coating, or as required.

Internal coating
a). Portland cement mortar lining
b). Sulphate Resistant cement mortar lining
c). High-Aluminum cement mortar lining
d). Fusion bonded epoxy coating
e). Liquid epoxy painting
f). Black bitumen painting

External coating
a). zinc+bitumen(70microns) painting
b). Fusion bonded epoxy coating
c). Zinc-aluminum alloy +liquid epoxy painting
Quality Control
100% inspection + professional Lab test
Standard export package, or as required.
T/T, L/C, Western Union, etc.


Water supply project, drainage, sewage, irrigation, water pipeline, etc.

Product Show

Ductile iron pipe
Ductile iron pipes are available in a range of diameters from 80mm to 1600mm and are suitable for both potable water transmission and distribution (in accordance with BS EN 545) and sewerage (in accordance with BS EN 598).
Ductile iron pipes are simple to joint, can be laid in all weather conditions and often without the need for selected backfill. Its high safety factor and ability to accommodate ground movement make it the ideal pipeline material for a wide range of applications.

Product details

1.The performance of internal pressure resistance:
Centrifugal ductile iron has the essence of iron and the performance of steel, so the ductile iron pipes have excellent security performance than pipes made from other materials. The designed working pressure is much higher than that of pipes made from other materials, the safty factor is pretty high, and the possible burst pressure is three times of the working pressure.

2.The performance of outer pressure resistance:
The high pressure resistance can avoid the requirement of the pipe bed and protective cover, making the pipes laying rellable and economic.

3.Inner anti-corrosion layer:
The inner layer of ductile iron pipes are centrifugally sprayed with cement mortar. Cement lining complies with the international standard ISO4179, ensuring the mortar strong and smooth. The motor coating will not fall off or foul, and its thickness is even ensuring the drinking water transferred by the pipes get good protection.

4.Protective coating:
The zinc spraying of ductile iron pipes could protect the pipes proactively through the electrochemical effect of zinc and iron. With the high chiorinated resin paint, the pipes will get enhanced anti-corrosion protection. The surface zinc spraying of each pipe is not less than 130g/m², amd cpmplies with ISO8179 standard. We can also increase the zinc spraying thickness or spray zinc & aluminum alloy layer according to the customers' demand.

Production Process


Company Profile

Shandong Runhai Stainless Steel Co., Ltd. is located in Jinan City, Shandong Province, with a registered capital of 51.17 million yuan. It is a professional steel sales company integrating domestic trade and foreign trade.

Our hot selling products include stainless steel sheet/tube/coil, carbon steel sheet/tube/coil, galvanized steel sheet/tube/coil, aluminum sheet/coil/tube, PPGI/PPGL, copper sheet/tube and aluminum sheet/tube, pre-coated steel coil , roof panels, H I U angle beams, special-shaped rods and round rods, iron wires, etc. Products are widely used in chemical, pharmaceutical, electric power, railway, automobile, papermaking, construction engineering and other fields.

The company has long-term and close trade relations with well-known domestic iron and steel enterprises such as Shandong Iron and Steel, Tang Iron and Steel, Handan Iron and Steel, Jinxi Iron and Steel.We have set up a central warehouse in Tai'an City, Shandong Province, China, with dozens of processing lines, sufficient inventory, and advanced WMS and CRM management systems to ensure that customers have no worries in the whole process of product consultation, purchase and ordering!

We will provide you with the shortest lead time on the basis of quality and quantity;"Integrity" is the only principle of the company, and "win-win" is the direction pursued. We will always serve you enthusiastically and look forward to long-term cooperation with you.



1.Ductile iron pipes for water conveyance:
Product standards: BS EN545:2002, ISO2531:1998
1) Pipes are supplied in standard length of 5.5/6.0m, short length pipes as per respective standards can be supplied.
2) In addition to Class K9 pipes, we also supply K7, K8, K10 and K12 classes of pipe.
3) The thickness can be determined by the formula e=K (0.5+0.001DN)
4) PFA (allowable operating pressure) is the internal pressure, exclusive of surge, that a component can safely withstand in permanent service.
5) PMA (allowable maximum operating pressure) is the maximum internal pressure, including surge, that a component can withstand for a relatively short duration, when either fixed above ground level or laid and back filled underground in order to measure the integrity and leak tightness of the pipek.

2. Ductile iron pipes for sewerage application:
Product standard: BS EN598:2002
Quality checks at every stage of manufacturing:
1) Strict selection of raw material is an indispensable requirement to produce quality ductile iron pipes and fittings.
2) We produces liquid metal suited to manufacture ductile iron pipes. The liquid metal is further processed in induction furnaces.
It is then treated with magnesium for modularization and transferred to the centrifugal spun casting machines.
3) The pipes are heat treated, zinc coated, hydrostatically tested, tested, cement mortar lined and finished with a layer of bitumen coating.
4) The in process inspection and quality control at all points during the production cycle is strictly maintained and documented as ISO9001 quality systems.


Customer visits

Packing & Delivery

■ DN80-DN300: Usually by bundles;
■ DN350-DN2000: Usually by bulk;
■ During transportation, the pipes are fixed by timbers, blocks, nails & steel ropes with cushions at the side in possible moving
■ Bulk or containers for Shipping,shipment, and trucks or train for inland transport.
* Can be packaged according to customer requirements


1.Q: Why choose us?
A: We are an iron and steel enterprise integrating industry and trade,Our company have been in steel business for more than ten years, we are internationally experienced, professional, and we can provide variety of steel products with high quality to our clients

2.Q: Can provide OEM/ODM service?
A: Yes. Please feel free to contact us for more details discuss.

3.Q: How is your Payment Term?
A: Our usual payment methods are T/T, L/C, D/A, D/P, Western Union, MoneyGram, payment methods can be negotiated and customized with customers.

4.Q: Do you accept the third party inspection?
A: Yes absolutely we accept.

5.Q: How could you guarantee your products?
A: Each piece of products is manufactured by certified workshops, inspected by piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

6.Q: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

7.Q: Can you provide sample?
A: Yes, for regular sizes sample is free but buyer need to pay freight cost.

8.Q:How can I get a quotation from you ?
A:You can leave us message, and we will reply every message in time. Or we may talk on line by Trademanager. And you can also find our contact information on contact page.

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