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ISO2531 Ductile Iron Pipe
Material | Ductile Cast Iron |
Type | T-Type(push-on joint) |
Standard | ISO2531 |
Size | DN80- DN2600 |
Classs | K7, K8, K9, C40, C30, C25, etc |
Length | 6m, 5.7m |
Application | Potable Water / Drinking Water |
Packing | DN100-DN300 in bundles; DN350-DN2600 in bulk ship |
Note | The pipe coating can be customized, such as, zinc-aluminum alloy, PU, etc. |
ISO2531 Ductile Iron Pipe
1) The standard of pipe: ISO2531
2) Effective length: 6M when using bulk shipment way, or 5.7M for container shipment
3) Inner cement line: Portland cement line as per ISO4179
4) Zinc coating: at least 130gsm as per ISO 8179
5) Bitumen painting: at least 70μm as per ISO 8179
6) Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber
tightness ring as per ISO4633
7) DN 80 - 2,600 mm
8) High strength, lighter than gray iron, good corrosion resistance, no furring,
small flow resistance, easy fixing, long life time
9) Checked by automatic inspection equipment
10) Composition:
a) C: 3.4 - 3.7%
b) Si: 2.0 - 2.4%
c) P: <0.08%
d) S: <0.015
11) Pull strength: >420MPa
12) Yield syrength: 300Mpa
13) Hardness: <230HB
14) Process and testing:
a) Blast furnace (Analysis of raw materials test )
b) Mg treatment (Micro & chemical composition test)
c) Pipe spinning (Temperature test)
d) Heat treatment (Micro structure; Flattening test)
e) Zinc coating (Thickness testing)
f) Dimensional checks (Thickness & Dia. testing)
g) Hydraulic test (Pressure test)
h) Internal lining (Thickness testing)
i) External coating (Thickness test)


It is the responsibility of every one of our staff to ensure the quality of our ISO2531 En545 En598 Class K7 K9 Water Pressure Ductile Iron Pipe and the post-sale service of our products. We stand at the new historical starting point, will firmly believe, follow the trend, ride on the momentum, write a new chapter of the company, open up a new glory! The company adheres to the corporate philosophy of "quality first, win-win and coexistence", and strives to build a comprehensive equipment enterprise.
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