High Strength Ductile Iron Cement Lined Pipe ISO2531 BSEN545
BSEN598 SGS
Cement Lined Ductile Iron Pipe overview:
Ductile cast iron is kind of 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(spheroidization rate is not below
80%). Thus after spheroidization, ductile cast iron possesses the
nature of iron as well as the characteristic of steel. After
annealing, its microstructure contains ferrite and a little
pearlite possessing excellent mechanical properties.
Specifications:
1) The standard of pipe: EN598,ISO 2531, EN545 , .
2) Pipe class: K/Cetc.
3) Pipe joint:T-type, K type joint, self-restrained joint
4) Internal lining: cement mortar lining as per ISO4179
5) Zinc coating: at least 130g/m2 as per ISO 8179
6) DN 80 - 2,600 mm
7) Bitumen painting: at least 70um as per ISO 8179
8) Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM
rubber ring as per ISO4633
9) DN 80 - 2,600 mm
10) High strength, lighter than gray iron, good corrosion
resistance, no furring, small flow resistance, easy fixing, long
life time
11) Checked by automatic inspection equipment
12) Mechanical properties
a) Tensile strength: ≥420MPa
b) Yield strength: ≥300Mpa
c) Hardness: ≤230HB
d) Elongation%: DN80 - 1000 ≥10 DN1200 - 2200 ≥7
External coating: Ductile iron pipeline systems can be installed in
a wide range of external operating environments, these environments
can be characterized according to their aggressively. Pipes shall
normally be delivered internally and externally coated. Ductile
iron pipeline systems can be installed in a wide range of external
operating environments. Coatings specified by relevant
International Standards are available as specified.
Internal lining:Ductile iron pipeline systems can be used to convey
a wide range of raw waters and potable waters. These internal
environments can be characterized by their aggressively. Relevant
factors to be considered for cement mortar linings without seal
coats are given; Linings specified by relevant International
Standards are available as specified.
Packing: bundled with steel belts or in bulk
Shipment: in bulk or container
mechnical behavior:
| Ductile cast iron pipe | Common ash cast pipe | Steel pipe |
| Tensile strength(MPa) | ≥420 | 150--260 | ≥400 |
| Ductility(%) | <1000(mm) | ≥10 | Neglected | ≥18 |
| >1000(mm) | ≥7 | Neglected | ≥18 |
| Brinell hardness(HBS) | ≤230 | ≤230 | about 140 |
| After annealing,the microstructure of ductile cast iron pipes is
ferrite and a little pearlite,possessing excellent mechanical
properties. |
Other performance:
| The hydraulic test pressure of the ductile cast iron pipes is as
follows: |
| Nominal diameter(mm) | Hydraulic test pressure(MPa) |
| 80≤DN≤300 | 5.0 |
| 350≤DN≤600 | 4.0 |
| 700≤DN≤1000 | 3.2 |
| 1100≤DN≤2000 | 2.5 |
Usage:
Much of the production of ductile iron is in the form of ductile
cast iron pipe, used for water and sewer lines. Ductile cast iron
pipe is stronger and easier to tap, requires less support and
provides greater flow area compared with pipes made from other
materials like PVC, concrete, polyethylene or steel. Ductile Iron
Pipe is the most widely-used pipeline product in water supply and
water drain/sewage projects.
Our advantages:
There are lots of qualified managers and technicians, and a
well-trained team of after-sales service, which provides all
services of manufacture, package, transportation and installation.
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