Specification:
1) The standard of pipe: ISO2531:1998, K9
2) Effective length: 6m
3) Inner cement line: Portland cement line as per ISO4179
4) Zinc coating: at least 130g/m2 as per ISO8179
5) Bitumen painting: at least 70um as per ISO8179
6) With 100% quantity of NBR ring, or SBR ring, or EPDM ring as per ISO4633
7) DN80mm-800mm
8) High strength, lighter than grey iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life tome about 100 yeas
9) Produced by Hangzhou chunfeng machine
10) Checked by automatic inspection equipment
11) Composition:
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 | ≤0.06 | ≤0.3 | 0.02-0.03 | | | |
S | ≤0.02 | ≤0.1 | 0.02-0.03 | | | |
Mg | 0.03-0.06 |
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12) Feature:
Mechanical properties | | | | |||
| Ductile Cast Iron Pipe | Grey Iron Pipe | Steel Pipe | | | |
Tensile Strength(Mpa) | ≥420 | 150-260 | ≥400 | | | |
Yield Strength(Mpa) | ≥300 | No Confirmation | No Confirmation | | | |
Bending Strength(Mpa) | ≥590 | 200-360 | ≥400 | | | |
Elongation (%) | ≥10 | Neglected | ≥18 | | | |
Brinell Hardness(HBS) | ≤230 | ≤230 | About 140 | | | |
13) T type mechanical joint
14) Packing: in bulk or container
