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Place of Origin: China (Mainland)
Brand Name: Yongtong
Model Number: Dn80mm~Dn1200mm

Specifications

Guangxi Angang Yongtong Casting Pipe Co.,Ltd. is a modern enterprise, established as a Sales Branch authorized by Angang Group Yongtong Ductile Cast Iron Pipe Co.,Ltd. Our main products include ductile cast iron pipe and accessory materials, valves and other products. We are dedicated to provide best products to our customers. Yongtong ductile cast iron pipe have been famous for its high quality over the past decades, conforming to ISO 2531, BS EN545 and GB/ T28001-2001. We were granted BS6920 certificate for potable water issued by WRAS, ISO14001:2004 Environment management system certificate and ISO9001:2008 certificate for quality system issued by SGS. Yongtong Pipe has been exported to countries and areas of Mid East, Europe, Central and Southern America, Southeast of Asia, Africa and so on. We are pleased to establish long-term business relationships with you based on mutual benefits. You are always welcome to visit our company and factory and establish further cooperation. 

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

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

 

 

 10) Feature:

Mechanical properties

 

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.