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Ductile cast iron, also called ductile iron, spheroidal graphite iron, or nodular cast iron, is a type of cast iron invented in 1943. While most varieties of cast iron are brittle, ductile cast iron is much more flexible and elastic, due to its nodular graphite inclusions.
Graphite particles exist in the form of sphericity in ductile cast iron. Sizes graphite particle are restricted to 6 -7 class and spheroidizing rate should not be less than 80%. Thus after the spheroidizing process, ductile iron will be endowed with mechanical properties of both cast iron and steel.
Much of the production of ductile iron is in the form of ductile cast iron pipe, used for water supply and sewerage design. Ductile cast iron pipe is stronger and easier to tap, requires less support and provides greater flow area compared with pipes made from other materials like PVC, concrete, polyethylene or steel. Ductile Iron Pipe is the most widely-used pipeline product in water supply and water drain/sewage projects.
Features of Ductile Iron Pipes
CNBM (CMAX®) Ductile Iron Pipe offers proven reliability and the quality.
It is quick and easy installation.
The ductile iron pipe has high pressure capability.
Available in sizes DN80 – DN2000
Both T Type (Push-on Joint) and K Type (Mechanical Joint) are available
Match 100% Natural rubber / SBR / EPDM rubber gaskets
|General Design||ISO 5752/BS 5155/EN 1092|
|Mounting Pad||ISO 5211|
|Face to Face||BS 5155/EN 558-1 13 series etc.|
|Flange Drilling||DIN 2501 PN10/16|
|Inspection and Test||API 598|
﹡For all available general design, face to face standard and flange drilling,please kindly contact CNBM directly.
Materials of Parts
|1||Body||Cast Iron/Ductile Iron|
|5||Disc||Stainless Steel/Bronze/Ductile Iron|
﹡For other material request,please kindly contact CNBM directly.
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