1.DN40-DN2000 2.Tensile strength:420Mpa Min 3.Elongation:10% Min 4.Professional Manufacture 5.Competitive Price

1.The pipes standard in accordance with ISO2531,Class K9, L=6000mm,

2.T-Type joint and selfrestrained joint duictile iron pipe with cement lining conform conform to ISO4179,

3.Zinc (130g/m2) + bitumen (70microns) painting accordance with ISO8179,

4.internal cement lining was in accordance with ISO4179

5.bitumen coating was in accordance with GB/T17459 .

6.all pipes according to the european standard EN545

7.matched all necessary T-type normal rubber gaskets in accordance with ISO4633.

 

	Ductile cast iron pipe	Grey iron pipe	Steel pipe
Tensile strength(Mpa)	≥420	150--260	≥400
Yield strength(Mpa)	≥300	200--360	No confirmation
Bending      strength(Mpa)	≥590	Neglected	≥400
Elongation(%)	≥10	≤230	≥18
Brinell hardness(HBS)	≤230		About 140
After annealing,the microstructure of ductile cast iron pipes is ferrite and a little pearlite,possessing excellen mechanical properties.

High Quality Centrifugal Ductile Cast Iron Pipes according with ISO7186