Product name: Ductile cast iron pipes
Material: ductile iron
Standard: EN545/ISO2531/BS4772
Usage: potable water
Production process:
1)Molten iron
2)Molten iron purification
3) Heating and sphereodization
4)Spheroidization
5)Centrifugal casting
6)Annealing
7)Zinc sparing
8)Rounding and grinding
9)Hydraulic testing
10) Cement lining
11) Cultivating
12) Bitumen coating
13)Packing
Grade:
K8/K9,K10/K11,K12, or C40/C30
Effective length: 6M for bulk shipment, 5.7M for 20' or 40' container shipment;
Inner surface cement lining conforms to ISO4179,the cement mortar is firm,dense,smooth and strong adhesion.
outer surface zinc+bitumen coating according to ISO8179;
Zinc coating: At least 130G/M2, bitumen coating at least 70um.
We also can do the pipes with epoxy coating inside or outside conforms to ISO2531.
Quality control:
#providing the metallographic examination;
#Graphite 6-7class, spheroidization rate not below 80%
#Mechanical properties:
| standard |
tensile strength-Mpa |
yield strengh-mpa |
Bending strength-mpa |
Elongation % |
brinell hardness-hbs |
| ISO2531 |
min.420 |
min.300 |
min.590 |
min.10 |
min.230 |
# Carrying out the test on line strictly during production process.
#High strength, lighter than gray iron, good corrosion resistance, small flow resistance, easy fixing, long life time.
Specification for K9 grade:
| Dn |
OD-mm |
wall thickness-mm |
total weight =6m |
| 80 |
98 |
6.0 |
76.8 |
| 100 |
118 |
6.1 |
95.4 |
| 150 |
170 |
6.3 |
145.4 |
| 200 |
222 |
6.4 |
194.6 |
| 250 |
274 |
6.8 |
255.8 |
| 300 |
326 |
7.2 |
326.3 |
| 350 |
378 |
7.7 |
405.8 |
| 400 |
429 |
8.1 |
485 |
| 500 |
532 |
9.0 |
676.8 |
More photos:
CONTACT US:
Head office:
RM 1108 Zhongyuan Bldg.,No.368 North Youyi Street,
Shijiazhuang, Hebei province, China
Post Code: 050061
Workshop:
No.15, Dongchuang S &T park, Jiansheng South Street, Chemical district Shijiazhuang, Hebei province, China
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