Shanxi kewell industrial co.,ltd produce the Ductile cast Iron Pipes with Push on Joint, K9,it confirms to ISO2531-1998 and EN545:2002, including the rubber ring in according to ISO4633, the coating of the pipe is the internally cement mortar lining and externally rich zinc plus bitumen coating . if you have the requirement for them, Please contact us : sx.kewell at yahoo.cn .
Ductile Iron Pipes
Specifications:
Size : DN 80 - 1,200 mm
Standard : ISO 2531 -1998, EN545-2006 ,EN598-2007 K8/k9
Effective length: 6M , 5.7 or 5.6 m
Standard : ISO 2531 -1998, EN545-2006 ,EN598-2007 K8/k9
Effective length: 6M , 5.7 or 5.6 m
Process : centrifugal casting .
Coating : Cement lining inside ( Portland cement line as per ISO4179 ) , Zinc ( at least 130gsm as per ISO 8179) and bitumen coating (at least 70um as per ISO 8179 )outside .
Accessories : Gaskets are NBR ,SBR,or EPDM rubber , tightness ring as per ISO4633
Coating : Cement lining inside ( Portland cement line as per ISO4179 ) , Zinc ( at least 130gsm as per ISO 8179) and bitumen coating (at least 70um as per ISO 8179 )outside .
Accessories : Gaskets are NBR ,SBR,or EPDM rubber , tightness ring as per ISO4633
|
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
|
less than 0.06
|
less than 0.3
|
0.02-0.03
|
|
S
|
less than 0.02
|
less than 0.1
|
0.02-0.03
|
|
Mg
|
0.03-0.06
|
|
|
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: 20 , 40 or bulk shipment .
Packing: 20 , 40 or bulk shipment .