Ductile Iron Pipe

Place of Origin: China (Mainland) Material: Cast Iron



1. Ductile Iron Pipe according to ISO 2531, ISO8179- 1, ISO 4178.

2 Exported to supply Spainish, France.

3. timely shipment.

Weight of ductile cast iron pipes with T type joint (GB/ T13295- 91) Nominal diameter DN ( mm ) External diameter DE ( mm ) Wall thickness T ( mm ) Socket weight (Kg) Unit weight (Kg/ m) Total weight (Kg) (6000 mm long)

K8K9K10K8K9K10K8K9K10

1001186. 14. 314. 915. 193. 795

1501706. 06. 37. 121. 822. 8138144

2002226. 410. 328. 730. 6183194

2502746. 87. 514. 235. 640. 244. 3228255280

3003266. 47. 28. 018. 945. 350. 856. 3290323357

3503786. 87. 78. 523. 755. 963. 269. 6359403441

4004297. 28. 19. 029. 567. 375. 583. 7433482532

5005328. 09. 01042. 892. 8104. 3115. 6600669736

6006358. 89. 91159. 3122137. 3152791882971

7007389. 610. 81279. 1155173. 9193100911231237

80084210. 411. 713102. 6192215. 2239125513941537

90094511. 212. 614129. 0232260. 2289152116901863

1000104812. 013. 515161. 3275309. 3343. 2181120172221

1200126513. 615. 317237. 7374420. 1466. 1248227583034

Ductile cast iron is a kind of alloy , carbon and silicon , in which graphite exists in the type of spherical, generally the size of graphite is 6~7 class , and spheroidization 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 characteristics of steel. After annealing , its microstructure contains ferrite and a little pearlite possessing excellent mechanical properties. Ductile cast iron pipe Grey iron pipe Stell 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 ? 230 140

After annealing , the microstructure of ductile cast iron pipes is ferrite and a little pearlite , possessing excellent mechanical properties.

The production process of ductile cast iron pipes strictly conforms to the international standard and European standard , as well ductile cast iron pipe is of excellent impact strength so that could moderate the requirements of construction of pipeline bed and protection layer, thus laying pipeline could be economical and reliable. In addition , external zinc spraying , bitumen and epoxy coating , internal cement lining etc. could ensure the internal and external anti- corrosion of pipeline. The quality of zinc spraying of Yongtong company conforms of ISO8179 could ensure mortar firm, dense, smooth and adhesive. Its thickness is as followed list. The hydraulic test pressure of the ductile cast pipes is as follows

Nominal diameter DN mm Hydraulic test pressure (MPa)

80?DN?300 5

350 ? DN ? 600 4

700?DN?1000 3. 2