C63000 Nickel Aluminum Bronze

Spec Equivalents: AMS 4640, SAE J463, QQ-C-465B, ASME SB150, ASTM B-150, B-124, B-171, B-283
C63000 (AMS 4640 – CDA 630) 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 strength of alloy without effecting its excellent ductility, toughness and corrosion resistance. Typical applications for C63000 nickel aluminum bronze included aircraft landing gear components, strut bearings, main pistons, trunnion bearings and similar vital components.

Typical Uses :

  • Industrial: Hydraulic Bushings for Earth Moving Equipment, Corrosion Resistant Articles, Bushings, Bearings, Heat Exchanger Flanges, Heat Exchanger Headers, Tanks, Valve Balls, Structural Members, Pump Shafts, Aircraft Parts, 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

Equivelent Specifications:

BSCA 104
JISC 6301

Chemical Composition:

Min/Max9.0 – 11.0Rem2.0 – –


End ProductSpecification
BarAMS 4640, ASME SB150, ASTM B150, FEDERAL QQ-C-450, SAE J463, J461
Bar, ForgingASTM B124
BoltsASTM F468
Forgins, DieAMS 4640, ASTM B283, MILITARY MIL-B-16166
NutsASTM F467
PlateASTM B171, FEDERAL QQ-C-450
Plate, Condenser TubeASME SB171, ASTM B171
RodAMS 4640, ASME SB150, ASTM B150, SAE J463, J461
Rod, ForgingASTM B124
ScrewsASTM F468
ShapesAMS 4640, ASTM B150, SAE J463, J461
Shapes, ForgingASTM B124


Joining TechniqueSuitability
Butt WeldGood
Capacity for Being Cold WorkedPoor
Capacity for Being Hot FormedGood
Coated Metal Arc WeldingGood
Forgeability Rating75
Gas Sheilded Arc WeldingGood
Machinability rating30
Oxyacetylene WeldingNot recommended
Seam WeldGood
SolderingNot recommended
Spot WeldGood

Physical Properties :

Product PropertyUS CustomaryMetric
Coefficient of Thermal Expansion9.0 ·10-6 per oF (68-572 F)16.2 · 10 6? per °C (20-300 C)
Density0.274 lb/in3 @ 68 F7.58 gm/cm3 @ 20 C
Electrical Conductivity7 %IACS @ 68 F0.041 MegaSiemens/cm @ 20 C
Electrical Resistivity116.0 ohms-cmil/ft @ 68 F19.28 microhm-cm @ 20 C
Melting Point Liquid US1930 F1054 C
Melting Point Solid US1895 F1035 C

Sizes Available

ROUND RODS8mm To 70 mm
HEX10mm To 60mm
SQUARE10mm To 60mm
FLAT10mm Min Thickness and max Width 120mm
BILLETSUp to 200 mm
INGOTSAs per Specification

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