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AMS Alloys

AMS 4590



  • Exceptional Mechanical Properties: This AMS bronze exhibits mechanical superiority over commercial nickel-aluminum bronzes and rivals beryllium copper without its hygienic requirements.
  • Versatile Applications: This high-performance alloy is well suited for a variety of applications, including aircraft landing gear bearings, pipe bending industry tools, gear wheels, wear plates, and guide plates.
  • Ductility and Conductivity: Aluminum bronze offers high ductility and excellent electrical and thermal conductivity, making it suitable for applications requiring flexibility and efficient heat and power transfer.
  • Corrosion Resistance: Along with its impressive mechanical properties, it offers excellent corrosion resistance, ensuring durability in harsh environments.
Properties and Specifications

AMS 4590 is a remarkable nickel aluminum bronze alloy known for its exceptional properties. This high-performance material has mechanical superiority over commercial nickel aluminum bronzes and rivals beryllium copper without the associated industrial hygiene requirements. With high ductility, excellent electrical and thermal conductivity, impact strength, and impressive creep resistance, this AMS bronze excels in a wide range of applications. It remains stable even in vacuum environments. Detailed specifications and extrusion details are available in the AMS 4590 documentation, making it an ideal choice for demanding engineering and manufacturing requirements.


This high-performance nickel aluminum bronze alloy is used in various industries. Originally developed for aircraft components such as retractable landing gear gears and engine spacer bearings, its use has expanded to include aircraft landing gear bearings and bushings, tube bending industry tools such as bending dies, gear wheels, and wear and guide plates. AMS 4590’s unique combination of mechanical strength, ductility, and corrosion resistance makes it an ideal choice for a wide range of demanding engineering and manufacturing applications.

Best used

For welding.

Ideally suited for

High ductility, high electrical and thermal conductivity, impact strength, good creep resistance and low volatility in a vacuum.

Document Downloads

AMS 4590 EX E 1403A
AMPCO® Special Alloys Application

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Dimensional Capabilities

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