For over a century, AMPCO METAL has pioneered and produced the best metal solutions for the world’s products, applications and industries.

AMS Alloys


Extruded and Drawn Rods


  • Mechanical properties beyond commercial nickel-aluminium bronzes.
  • Spark-resistant properties.

AMS-4640 is an unrivalled high strength alloy and extruded performance product that can deliver performance under specific conditions, especially heavy loads, friction, abrasive wear and corrosion.

Best used

For heavy loads, friction, abrasive wear and corrosion.

Ideally suited for

Aircraft bearings / bushings, pump and marine shafts and wear rings, valve spindles and seats, machine tool parts.

Document Downloads

AMS 4640 EX E 1403A
AMPCO® Special Alloys Application

Dimensional Capabilities

View our product dimensional capabilities.

Dimensional Capabilities

Let us help you find the best.

Contact AMPCO METAL today so we can engineer a solution that works for you.

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