Ductile iron pipe is a very commonly used water supply pipe and is widely used in municipal water supply pipes, sewage pipes, water supply pipes, etc. Next, Zhongxi Metal will share with you what are the advantages of ductile iron pipes?
1. Scalability, high strength and pressure function and corrosion resistance of ductile iron pipes
2. The elongation can reach more than 10%, the tensile strength of Handan ductile iron pipe is more than 420 MPa, and the pressure value is more than 4MPa.
3. It has the ability to resist high deformation in high-pressure water supply and gas pipeline systems.
4. Ductile iron pipe paint anti-corrosion measures, such as invasion resistance, corrosion resistance and service life of one hundred years;
5. Easy installation and construction, economical project cost
6. Reliability: Ductile iron pipes have high bearing capacity and certain elongation, and adopt flexible interfaces. Even if the axial deviation is 3 to 5 degrees, medium seepage and leakage will not occur, and they have strong resistance to earthquakes and Foundation settlement.
| Theoretical Weight Table
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| Nominal diameter DN(mm) | outer diameter DE（mm） | wall thicknessT（mm） | Approximate weight of socket convex part (kg) | Straight part weight per meter (kg) | Total mass (kg) (standard working length 6000mm) | Total mass (kg) (standard working length 5000mm) |
|
| K8 | K9 | K10 |
| K8 | K9 | K10 | K8 | K9 | K10 | K8 | K9 | K10 |
| 80 | 98 | 6.0 | 6.0 | 6.0 | 3.4 | 12.2 | 12.2 | 12.2 | 76.5 | 76.5 | 76.5 | 64.4 | 64.4 | 64.4 |
| 100 | 118 | 6.0 | 6.0 | 6.1 | 4.3 | 14.9 | 15.1 | 15.1 | 93.7 | 95 | 95 | 78.8 | 79.8 | 79.8 |
| 125 | 144 | 6.0 | 6.0 | 6.3 | 5.7 | 18.3 | 18.3 | 19 | 119 | 119 | 121 | 97.2 | 97.2 | 100.7 |
| 150 | 170 | 6.0 | 6.0 | 6.3 | 7.1 | 21.8 | 22.8 | 22.8 | 138 | 144 | 144 | 116.1 | 121.1 | 121.1 |
| 200 | 222 | 6.0 | 6.3 | 6.4 | 10.3 | 28.7 | 30.6 | 30.6 | 183 | 194 | 194 | 153.8 | 163.3 | 163.3 |
| 250 | 274 | 6.0 | 6.8 | 7.5 | 14.2 | 35.6 | 40.2 | 44.3 | 228 | 255 | 280 | 192.2 | 215.2 | 235.7 |
| 300 | 326 | 6.4 | 7.2 | 8.0 | 18.9 | 45.3 | 50.8 | 56.3 | 290 | 323 | 357 | 245.4 | 272.9 | 300.4 |
| 350 | 378 | 6.8 | 7.7 | 8.5 | 23.7 | 55.9 | 63.2 | 69.6 | 359 | 403 | 441 | 303.2 | 339.7 | 371.7 |
| 400 | 429 | 7.2 | 8.1 | 9.0 | 29.5 | 67.3 | 75.5 | 83.7 | 433 | 482 | 532 | 366 | 407 | 448 |
| 450 | 480 | 7.6 | 8.6 | 9.5 | 38.3 | 80 | 89 | 99 | 515 | 574 | 632 | 438.3 | 483.3 | 533.3 |
| 500 | 532 | 8.0 | 9.0 | 10 | 42.8 | 92.8 | 104.3 | 115.6 | 600 | 669 | 736 | 506.8 | 564.3 | 620.8 |
| 600 | 635 | 8.8 | 9.9 | 11 | 59.3 | 122 | 137.3 | 152 | 791 | 882 | 971 | 669.3 | 745.8 | 819.3 |
| 700 | 738 | 9.6 | 10.8 | 12 | 79.1 | 155 | 173.9 | 193 | 1009 | 1123 | 1237 | 854.1 | 948.6 | 1044.1 |
| 800 | 842 | 10.4 | 11.7 | 13 | 102.6 | 192 | 215.2 | 239 | 1255 | 1394 | 1537 | 1062.6 | 1178.6 | 1297.6 |
| 900 | 945 | 11.2 | 12.6 | 14 | 129.0 | 232 | 260.2 | 289 | 1521 | 1690 | 1863 | 1289 | 1430 | 1574 |
| 1000 | 1048 | 12.0 | 13.5 | 15 | 161.3 | 275 | 309.3 | 343.2 | 1811 | 2017 | 2221 | 1536.3 | 1707.8 | 1877.3 |
| 1200 | 1265 | 13.6 | 15.3 | 17 | 237.7 | 374 | 420.1 | 466.1 | 2482 | 2758 | 3034 | 2107.7 | 2338.2 | 2568.2 |
| 1400 | 1462 | 16.0 | 17.1 | 19 | 385.3 | 487.0 | 547.2 |
|
| 3669 |
|
| 3121 |
|
| 1600 | 1668 | 18.4 | 18.9 | 21.0 | 526.0 | 614.5 | 690.3 |
|
| 4015 |
|
|
|
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Ductile Iron Pipe Has Better Mechanical Performance
| Performance | Centrifugal ductile iron pipe | Gray iron casting pipe | Steel pipe |
| Resistance to tensile stress | ≥420（Mpa） | 150~260 | ≥400 |
| Bending strength | ≥590 （Mpa） | 200~360 | ≥400 |
| Extensibility (N/mm2) | DN80-1000≥10 DN1200-2200≥7 | / | ≥18 |
| Elastic Coefficient | Approx.16x104 (%) | Approx.11x104 | Approx.16x104 |
| Hardness | ≤230 （HB） | ≤230 （HB） | Approx.140 |
| Yield strength(N/mm2) | 300 | / |
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