Oil cylinder and construction machinery applicatio

Product name: Coated Steel Joint Bushing

Mechanical properties

 

Characteristic

 Using structural alloy steel as matrix steel and machining the oil pockets in the inside holes

 QPQ nitriding treatment, superior seizure resistance and fatigue life

 Good self-lubricating property beacause of the coating on the surface

 

Application

All kinds of construction machines like excavators, bigger loaders, injection machines and forging machines etc.

 

Mechanical Property

Base 

Material

Base Hardness

Apparent Hardness

Depth Of Nitriding Layer

Hardness

20CrMo

260-320HV

≥550HV

0.2-0.4mm

≥10um

42CrMo

280-320HV

≥550HV

0.2-0.4mm

≥10um

20CrMnTi280-320HV
≥550HV
0.2-0.4mm
≥10um


 

Hydraulic components

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