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DN80-2600mm ductile iron pipe 300mm

A.Composition:
a) C: 3.4 - 3.7%
b) Si: 2.0 - 2.4%
c) P: <0.08%
d) S: <0.015
B.Pull strength: >420MPa
C.Yield: >10%
D.Hardness: <230HB
E.Process and testing:
a) Blast furnace (Analysis of raw materials test )
b) Mg treatment (Micro & chemical composition test)
c) Pipe spinning (Temperature test)
d) Heat treatment (Micro structure; Flattening test)
e) Zinc coating (Thickness testing)
f) Dimensional checks (Thickness & Dia. testing)
g) Hydraulic test (Pressure test)
h) Internal lining (Thickness testing)
i) External coating (Thickness test)

Shandong Liaocheng Zhicheng Pipe Co., Ltd. is located in the Liaocheng Development Zone in Shandong Province, which is known as the "Jiangbei Water City", situated in the China largest steel distribution center. Our company is a large-scale iron and steel enterprise integrating production and operation. Our company was founded in 2006 and has a total investment of 260 million RMB, an area of 180,000 square meters. Existing staff of 1200 people, technical personnel more than 80 people, management personnel 30 people. 

          Our cast iron items include ductile iron pipe, used in urban water supply, drainage, sewage and gas supply projects; Ductile iron well lid, used in water supply wells, drainage wells, gas wells, electric wells, and heating wells; The flexible mechanism drainage pipe, mainly used for high-rise drainage;