Nickel Aluminium Bronze AMS 4640 (UNS C63000)

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

Physical Properties AMS 4640

Melting Point - Liquidus - 1930 F

Melting Point - Solidus - 1895 F

Density - 0.274 lb/in3 at 68 F

Specific Gravity - 7.58

Electrical Resistivity - 116.0 ohms-cmil/ft @ 68 F

Electrical Conductivity - 7 %IACS @ 68 F

Thermal Conductivity - 22.6 Btu · ft/(hr · ft2·oF)at 68F

Coefficient of Thermal Expansion - 9.0 ·10-6 per oF (68-572 F)

Specific Heat Capacity - 0.09 Btu/lb/oF at 68 F

Modulus of Elasticity in Tension - 7500 ksi

Modulus of Rigidity - 6400 ksi

Machinability Rating -30%

Availability

Nickel Aluminium Bronze AMS 4640 is available in

Sizes available: AMS 4640

SOLID BAR 3/16” - 8” diameter

HEX BAR 5/8" - 2 1/2"

For all other stock availability contact Sales.

Specifications

Similar Specifications

ASTM B-150, B-124, B-171, B-283

CA105

SAE J463

QQ-C-465

DELTA CA18

DELTA CA21

CW307G

AU10N

NF L14-705

WS 2.0966

DIN 17672

GAM MM11 CuAl9Ni5Fe2

GAM MM13 CuAl9Ni5Fe4

ISO 428

NFA 51-116

NES 833

NC4

UNS C63000

AMS 4640 Aluminium Bronze Bar, Drawn and Stress releived (HR50) or Temper Annealed (TQ50)

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.