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Nodular iron QT400-18 of Automobile oil pump

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Automobile oil pump is usually made with ductile iron material, because of good wear resistance. We are specializing in the production of QT400-18 ductile iron automobile oil pump.

Material name: ductile iron
Brand: QT400-18
Standard: 1348-88 GB

 

Characteristics and scope of application:
QT400-18 is ferrite yype ductile iron,it has good welding and cutting performance.Ductile iron QT400-18 mainly used for the parts which can withstand high impact vibration and torsion,such as power machinery crankshaft, camshaft, connecting shaft, connecting rod, gear, clutch plate, hydraulic cylinder and other parts.

Chemical composition:
C :3.45~3.64
Si:2.47~3.00
Mn:0.45~0.57
S :0.012~0.026
P :0.047~0.060
Mg:0.029~0.062
Re:0.032~0.047

Mechanical properties:
The ultimate tensile strength of B (MPa): ≥400
The yield strength of sigma 0.2 (MPa): ≥250
Hardness: 130 ~ 180HB

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