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K9 Ductile Iron Pipes for Water Supply

K9 Ductile Iron Pipes for Water Supply

Specifications: 1) The standard of pipe: ISO 2531 -1998, EN545-2002 , K9 2) Effective length: 6M when using bulk shipment way, or about 5.5M or 5.7M when in 20' container shipment way 3) Inner cement line: Portland cement lining as per ISO4179 4) Zinc coating: at least 130gsm as per ISO 8179...

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Specifications:

1)  The standard of pipe: ISO 2531 -1998, EN545-2002 , K9 

2)  Effective length: 6M when using bulk shipment way, or about 5.5M or 5.7M when in 20' container shipment way 

3)  Inner cement line: Portland cement lining as per ISO4179 

4)  Zinc coating: at least 130gsm as per ISO 8179 

5)  Bitumen painting: at least 70um as per ISO 8179 

6)  Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber tightness ring as per ISO4633 

7)  DN 80 - 1,200 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: >10% 

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)


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