Alloy Spotlight: C63000 Nickel Aluminum Bronze

- Nov 10, 2015 - by mrusso

Aluminum bronze alloys are important metals due to their excellent physical, mechanical, anti-corrosive, and wearing properties.  With the addition of nickel to an aluminum bronze alloy you can achieve an increase in strength without diminishing its excellent ductility, toughness, or corrosion resistance. One such nickel aluminum bronze alloy is C63000.  This high strength alloy is comparable in hardness to medium carbon steel.  C630 possess good anti-frictional characteristics and resists scaling as well as oxidation at elevated temperatures.


Cross Index Chemical Composition Minimum Requirments Machinability
CDA SAE AMS   Cu Al Fe Ni Mn   Tensile (PSI) Yield (PSI) % Elongation BHN @ 500 kg  
C63000   4640   78 10 3 5 1.5   90,000 45,000 6 225 30



Also known as AMS 4640, C630 is used in a number of different industries.  This alloy is an excellent choice for applications involving heavy loads, abrasive wear resistance, friction, and corrosion.  The chart below lists the various industries and applications where C63000 Nickel Aluminum Bronze can be found.


  • Landing Gear Bushings
  • Strut Bearings
  • Main Pistons
  • Trunnion Bearings
  • Actuator Parts

Oil & Gas

  • Valve Seats
  • Valve Guides
  • Pump Shafts
  • Pump Gears
  • Bearings
  • Nuts
  • BOP Components


  • Pump Components
  • Bolts
  • Propellers
  • Nuts


  • Valve Guides
  • Valve Seats
  • Bearings


Here at, C63000 (AMS 4640) is a standard stocking alloy.  Solid round bar stock of C630 is available for immediate shipment.  Full bar lengths vary in size, but we will cut to the length needed without any minimum order requirements.  Cut to size, In Stock, No Minimums - that’s what makes your premier source for Bronze, Brass, and Copper Alloy bar stock online.



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C63000 AMS 4640 Nickel Aluminum Bronze Specification Sheet

C63000 AMS 4640 Nickel Aluminum Bronze Material Safety Data Sheet