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Si45Z | CuSi3Fe2Zn3 | C65620

CuSi3Fe2Zn3

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Si45Z | CuSi3Fe2Zn3 | C65620
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  • ISO composition : CuSi3Fe2Zn3
  • UNS :

    C65620 

  • ASTM / AMS :

    AMS 4616

Product forms

Rolled products

Bars & Hollow Bars

Applications

Industry parts for high temperature, pressure and wear resistance
High performance valve train components
High strength heavy load friction wear resistance

Si45Z | CuSi3Fe2Zn3 | C65620 | AMS 4616 key properties 

Si45Z | CuSi3Fe2Zn3 | C65620 | AMS 4616 is a wrought single‑phase copper‑silicon alloy engineered for applications requiring excellent ductility, elongation and reliable mechanical performance. Combining good mechanical properties with outstanding swaging behavior and resistance to wear and galling, Si45Z is particularly suited for components requiring significant deformation during manufacturing. Aligned with AMS 4616, this alloy meets aerospace requirements for copper‑based materials used in demanding applications. 

Si45Z | CuSi3Fe2Zn3 | C65620 | AMS 4616 exhibits a high level of ductility and formability, enabling the production of complex geometries while maintaining consistent mechanical behavior. Non‑magnetic by nature, it also offers good resistance to oxidation, good machinability and low magnetic permeability, ensuring reliable performance across a wide range of operating conditions. Its strong resistance to metal‑to‑metal wear makes it particularly suitable for antifriction components and applications where durability and reduced maintenance are required. 

As a copper‑silicon alloy, Si45Z delivers a balanced combination of formability, wear resistance and mechanical performance, making it a dependable solution for precision components in demanding environments. 

Designation
Available forms
Composition
UNS
AMS & ASTM
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Si45Z
CuSi3Fe2Zn3

C65620

AMS 4616
datasheet
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Si45Z | CuSi3Fe2Zn3 | C65620 | AMS 4616 Applications 

Aeronautics industry 
Si45Z | CuSi3Fe2Zn3 | C65620 | AMS 4616 is used for bearing cages, retainers, spacers and rotor bars for engines, where antifriction properties, wear resistance and formability are critical. 

Automotive industry 
Si45Z | CuSi3Fe2Zn3 | C65620 | AMS 4616 is applied in valve guides and mechanical components, requiring consistent performance under friction and mechanical loading. 

Industrial applications 
Si45Z | CuSi3Fe2Zn3 | C65620 | AMS 4616 is used in asynchronous motors and hydraulic components, including antifriction elements such as bushings and gears, where resistance to wear and reliable performance are essential.