Qian’an Rentai Metal Products Co.,Ltd

C25, C30, C40 K9 Ductile Iron pipe made in China

Group Ductile Iron Pipe
PriceUS $26-30 / meter
Min. Order 1200 meter
Terms of Payment L/C, T/T
Update Time 2018-08-28
Item specifics
Bitumen coating70μ bitumen coating
SBR rubber gaskets130g zinc coating
ISO2531 StandardK9 Class
Rubber ringSBR rubber gaskets
  • Description
  • Product review

Manufacturers of C25, C30, C40 K9 Ductile Iron pipe in China


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 line as per ISO4179 
4)  Zinc coating: at least 130g/㎡ 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 - 1,600 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)  K type mechanical joint with flange and bolts available 
15)  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)

Mechanical joint pipe and fittings are also available.

  Packing:  in bulk or container 

Our Services

1. Fast Delivery: around 20 days below 300Metric Tons after sight of Irrevocable L/C or Deposit;

2. Quality Assured: Strictly acc. To International standard ASTM & BS & EN & JIS, with System ISO certification
3. Good Service: supplied professional technical guide free of charge at anytime;
4. Reasonable Price: to be better support your business.


Production Flow

One leading Manufacturers of C25, C30, C40 K9 Ductile Iron pipe in China



Company Information

We are one of the leading manufacturers of ductile iron pipe,pipe fittings,dismantling joints,flanged adaptors, couplings, valves , Our products are made according to different standards, such as ISO2531, EN545, EN14525, ISO4422, ISO7005, DIN3352, BS5163, DIN3202, BS2494, BS4504, EN124 and other relevant ISO, EN, BS, DIN and ANSI standards. Moreover, our products have been selling well in European, Middle East, Southeast Asian, South African and South American countries for more than 10 years.  Presently, we are looking forward to your inquiries and to establishing long term cooperation relationship based on mutual benefits.



1. Can I get free samples?
A: Yes, we can provide you the free samples, but you need to bear their own delivery costs.

2. Can I request to change the form of packaging and transportation?
A: Yes, We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.

3. Can I request to advance the shipment?
A: It should be depends on whether there is sufficient inventory in our warehouse.

4. Can I have my own Logo on the product?
A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.

5. Can you produce the products according to my own drawings?
A: Yes, we can produce the products according to your drawings that will be most satisfy you.


6. Which price terms could accepted?
A: FOB,CFR,CIF all acceptable.