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 |
20CrMnTi | 280-320HV | ≥550HV | 0.2-0.4mm | ≥10um |