Place of Origin: | China (Mainland) |
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Brand Name: | Yongtong |
Model Number: | Dn80mm~Dn1200mm |
Quick Details
Specifications
cement lined ductile iron pipe dimension
1) The standard of Ductile iron pipe: EN545, K9
2) Effective length: 6m
3) Inner cement line: Portland cement line as per ISO4179
4) Zinc coating: at least 130g/m2 as per ISO8179
5) Bitumen painting: at least 70um as per ISO8179
6) With 100% quantity of SBR ring or EPDM ring as per ISO4633
7) Diameter specification: DN80mm-1200mm
8) High strength, lighter than grey iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life tome about 100 years
9) Composition:
Chemical composition |
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Chemical composition |
Ductile Cast Iron Pipe (%) |
Grey iron pipe (%) |
Steel pipe (%) |
C |
3.5-4.0 |
3.2-3.8 |
0.1-0.2 |
Si |
1.9-2.6 |
1.4-2.2 |
0.15-0.4 |
Mn |
0.15-0.45 |
0.4-0.6 |
0.3-0.6 |
P |
≤0.06 |
≤0.3 |
0.02-0.03 |
S |
≤0.02 |
≤0.1 |
0.02-0.03 |
Mg |
0.03-0.06 |
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10) Feature:
Mechanical properties |
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Ductile Cast Iron Pipe |
Grey Iron Pipe |
Steel Pipe |
Tensile Strength(Mpa) |
≥420 |
150-260 |
≥400 |
Yield Strength(Mpa) |
≥300 |
No Confirmation |
No Confirmation |
Bending Strength(Mpa) |
≥590 |
200-360 |
≥400 |
Elongation (%) |
≥10 |
Neglected |
≥18 |
Brinell Hardness(HBS) |
≤230 |
≤230 |
About 140 |
11) iso 2531 K9 ductile iron pipe Packing: in bulk or container
12) Ductile iron pipe Production Process
Molten iron->Molten iron purification->Heating and sphereodization->Spheroidization->Centrifugal casting->Annealing->Zinc spraying->Rounding and grinding->Hydraulic testing->Cement lining->Cultivating->Bitumen coating->Packing.
13) Ductile iron pipe quality control and test
Ductile cast iron is a kind alloy of iron, carbon and silicon, in which graphite exists in the type of spherical, generally the size of graphite is 6~7 class, and spheriodization grade of the pipe should be controlled 1~3 class ( spheriodization is not below 80%). Thus, ductile iron pipe possesses the nature of iron as well as the characteristics of steel.
During production, tests on line are strictly carried out and tests items includes: hydraulic pressure, cement lining thickness, zinc spraying thickness, bitumen coating thickness, dimension test, impressing test ans so on, so that we could ensure pipes quality conform to ISO2531 standard.
14) iso 2531 K9 ductile iron pipe Certificates
Our products have attained ISO9001:2008 International Quality System Certification by SGS, EN545:2002 Product Quality Certification, ISO2531 Product Quality System Certification and Metallurgy Product Quality Certification by Steel Iron Product Quality Supervision and Inspection Center. They also have passed the evaluations of ISO14001 and GB/T28001-2001 Certifications.
15) Fittings and Rubber rings
We can also supply kinds of matched ductile iron fittings, conforming to ISO2531, BS EN545 and ISO9001 quality system. SBR and EPDM rubber ring are tested according to ISO4633 and have been audited to conform to ISO9001 quality system certification.