Tianjin City P.R.E. Imp & Exp Trade Co., Ltd.
Main products:Turbocharger,Alternator,Filter,Cylinder Head Gasket,Combination Instrument
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  • Contact Person : Mr. zhang jinhe
  • Company Name : Tianjin City P.R.E. Imp & Exp Trade Co., Ltd.
  • Tel : 86-22-86879299
  • Fax : 86-22-86877887
  • Address : Tianjin,Tianjin,North Auto Trade Park , Tiedong Road
  • Country/Region : China
  • Zip : 300400

Ductile Iron Pipe

Ductile Iron Pipe
Product Detailed
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)

(6000mm 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

Ductile Iron Pipe



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