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AMS 4640 Nickel Aluminum Bronze

AMS 4640 Nickel Aluminum Bronze alloy is an excellent choice for applications involving heavy loads, abrasive wear resistant, friction, abrasive wear and corrosion. The addition of nickel increases the alloys strength without diminishing its excellent ductility, toughness and corrosion resistance.

Typical Uses for AMS4640 Nickel Aluminum Bronze:

AEROSPACE:Bushings, Bearings, Aircraft Parts

INDUSTRIAL: Hydraulic Bushings for Earth Moving Equipment, Corrosion Resistant Articles, Heat Exchanger Flanges, Heat Exchanger Headers, Tanks, Valve Balls, Structural Members, Pump Shafts, Valve Guides, Plunger Tips, Welded Piping Systems, Balls, Gears, Cams, Pump Parts, Shafting, Condenser Tube for Power Stations and Desalting Units, Valve Seats

MARINE: Pump Parts, Bolts, Nuts, Propellers, Ship Propellers

PLUMBING: Faucets

Typical Uses of Nickel Aluminium Bronze AMS 4640
Oil & Gas - Valve Stems, Pump Shafts, Seal Glands, BOP Parts
Aerospace - Landing Gear Bushings & Bearings, Flap Bushings, Actuator, Parts, Strut Bushings
Automotive - Valve Guides, Valve Seats
Other Industrial - Balls, Gears, Cams, Shafting, Condenser Tube for Power Stations and Desalting Units, Valve Seats, Valve Guides,Pump Shafts, Structural Members, Tanks, Heat Exchanger,Headers, Heat Exchanger Flanges, Bearings, Bushings, Valve Balls, Hydraulic Bushings for Earth Moving Equipment, Corrosion Resistant Articles, Aircraft Parts, Welded Piping Systems, Plunger Tips, Pump Parts, Plunger Tips
Marine - Pump Parts, Bolts, Ship Propellers, Propeller Nuts, Shafts

Corrosion Resistance
C63000 has good resistance to sulphuric, hydrochloric and other non-oxidizing acids, as well as salt water and brackish waters. Its superior erosion and cavitation properties facilitate use in pump and propeller applications. Retention of properties together with good oxidation resistance at elevated temperatures make C63000 suitable for service in internal combustion engines, steam plant applications and chemical processing applications. Very little deterioration takes place below 600° F and oxidation is retarded up to 1200° F by an oxide film. C63000 is very resistant to stress corrosion cracking in numerous applications. Galling is a common problem designers have to overcome when choosing materials. Affinity between two mating metallic surfaces can easily introduce galling when exposed to large bearing pressures and extreme temperatures. C63000 has great galling resistance, making it the material of choice for such applications.

Technical Data Sheet

Nickel Aluminum Bronze (AMS 4640) contains 5% nickel and is heat treatable. Available in both rod and forged form, it is intended for applications that require combinations of corrosion resistance, excellent bearing properties at considerable loads, and extremely high strength both at room and elevated temperatures.

Typical Mechanical Properties

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