Tianjin Haigang Steel Sheet CO Ltd

Ductile Iron Pipe high DN80 - DN800

Payment Terms: TT or LC

Ref Price : 300-600 USD/TON

Supply Capability : 1000 TON

Loading Port : TianJin

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Quick Details

  • Diameter:
    DN80 - DN800, we also can offer DN125
  • Standard:
    GB13295, ISO2531, EN545, EN598, ASTM C151;
  • Effective length:
    5.5m -6.1m;
  • Inner cement:
    Ordinary portland cement, sulphate resistant cement, high-alumina cement

  • TOPSUN Ductile cast iron pipe t type joint for water supply/Ductile iron pipe manufacturer


  •   Ductile iron pipe
    Standard: ISO9001/EN545/EN598
    Range: DN80-2600mm
    Class: C25/C30/C40//K8/K9
    Pressure: PN10/PN16/PN25/PN40
    Joint type: T type/K type/Self-restrained type
  • Product Standard


  • TOPSUN DCI pipe comply with EN and international standards.

  • For Potable Water

  • ISO2531-2009:Ductile iron pipes,fittings,accessories and their joints for water applications.

  • EN545-2010: Ductile iron pipes,fittings,accessories and their joints for water pipelines requirements and test method.

  • ISO4179-2005:Ductile iron pipes and fittings for pressure and non-pressure pipelines -- Cement mortar lining.

  • ISO8179-2004:Ductile iron pipes -- External zinc-based coating -- Part 1:Metallic zinc with finishing layer.

  • BS 3416:1991:Specification for bitumen-based coatings for cold application,suitable for use in contact with potable water.

  • ISO4633-2002:Rubber seals -- Joint rings for water supply,drainage and sewerage pipelines--Specification for materials.

  • ISO8180-2006:Ductile iron pipelines--Polyethylene sleeving for site application.

  • EN681-1 :Elastomeric seals. Material requirements for pipe joint seals used in water and drainage applications Vulcanized rubber.

  • For sewage application

  • EN598-2007:Ductile iron pipes, fittings, accessories and their joints for sewerage applications. Requirements and test methods.

  • ISO4633-2002:Rubber seals -- Joint rings for water supply, drainage and sewerage pipelines -- Specification for materials.

  • EN681-1:Elastomeric seals. Material requirements for pipe joint seals used in water and drainage applications Vulcanized rubber

  • Advantages

  • Better Mechanical Properties:

  • Microstructure comparison for Ductile Iron, Steel and Grey Cast Iron,


  • Better mechanical properties than steel pipe and grey cast iron pipe (as following table),

  • Type of Pipe Mechanical Properties
    Tensile Strength Elongation(%) Hardness(HB)
    Ductile Iron Pipe ≥420N/mm2 (DN≤1000)≥10 (DN>1000)≥7  ≤230
    Grey Cast Iron Pipe 150-260N/mm2 Negligible ≤230
    Steel Pipe ≥400N/mm2 ≥18 Approx.140

  • Product Data

  •  The mechanical properties of pipes shall be as shown in the table,

  • Mechnical 



    Hydrostatic Test




    Elongation Hardness

    Thickness of 

    cement lining

    (Rm/Mpa) (%) (HBS) (mm)
    DN80-DN300 5 ≥420 ≥10 ≤230 3
    DN350-DN600 4 ≥420 ≥10 ≤230 5
    DN700-DN1000 3.2 ≥420 ≥10 ≤230 6
    DN1100-DN1600 2.5 ≥420 ≥7 ≤230


  • Client & Market

  • Exhibition.jpg



 advanced equipment of Ductile Iron Pipe high DN80 - DN800



packaging and shipping of Ductile Iron Pipe high DN80 - DN800


 certificates of sino





1We have our own factory to produce our products.


2We have a number of excellent line service team.


3We offer a full range of quality assurance services.






Q: May I have some samples before bulk order?

A: Yes, you can. We can arrange the shipment according to your requirements.


Q: Do you have quality control?

A: Sure. We have the most advanced testing equipment for very strict quality control. 


Q:How about the delivery?

A: By containers on ship or railway wagon ,and bulk ship . Safe and cost effective way of delivery . 


QWhat about the lead time for mass production?

AHonestly, it depends on the order quantity and the season you place the order.

   Tianjin Haishan Steel Plate Co., Ltd. is a manufacturing enterprise specialized in manufacturing hot-dip galvanized sheets and strips. The company is located in Shuangtang High-grade Hardware Industrial Park, Jinghai County, Tianjin.  Also this is situated 30km away from Tianjin City, 107km away from Tianjin Port and 66km away from Tianjin Binhai International Airport. The total investment of the company is RMB 800 million and has a registered capital of RMB 410 million. 

Haigang has advanced continuous production lines of pickling, cold rolling and hot galvanizing, with annual capacity of 1 million tons.The main products are galvanized strip steel, pickling strip steel and cold rolled strip steel with width of 860mm or less, zinc content of 40g-600g and thickness of 0.3mm-5.0mm.Widely used in the construction industry, machinery manufacturing industry, automobile industry, household appliances and other fields.Our products have been sold to Europe, America, central Asia, southeast Asia, etc.

Haigang always adheres to technological innovation, strengthens internal management, optimizes product structure, and improves product quality. It is the first company in the industry to pass the certification of GB/ t19001-2008 quality management system, GB/ t24001-2004 environmental management system, and GB/ t28001-2011 occupational health and safety management system."Hai gang" brand galvanized steel strip has also been awarded the honorary title of "tianjin famous brand product".

Haigang has been building its enterprise brand with integrity, taking technological innovation as the driving force, taking product quality as the basis, taking customer value as the goal, and taking common development with customers as the enterprise purpose.Is a win-win cooperation partner with you.

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