AMS 4640-C63000

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Aluminum is the main alloying metal added to copper in aluminum bronze alloys such as C63000, also known as C630. A variety of aluminum bronzes of differing compositions have found industrial use, with most ranging from 5.00% to 11.00% aluminum by weight, the remaining mass being copper. Other alloying elements such as iron, nickel, manganese, and silicon are also oftentimes added. Aluminum bronzes are most valued for their high strength and corrosion resistance. MORE »

Info

Product Description: Nickel Aluminum Bronze
Tempers: HR50 Drawn and Stress Relieved, or TQ50 Temper Annealed
Solids: 3/8" to 10" O.D.
Hex: 1/2" to 2" O.D.
Rectangles: Consult Mill
Standard Lengths: 144"

Typical Uses

Industrial: aircraft parts, balls, bearings, bushings, cams, condenser tube for power stations and desalting units, corrosion resistant articles, gears, heat exchanger flanges, hydraulic bushings for earth moving equipment, plunger tips, pump parts, pump shafts, shafting, structural members, tanks, valve balls, valve guides, valve seats, welded piping systems
Marine: bolts, nuts, propellers, pump parts, ship propellers
Plumbing: faucets

Similar or Equivalent Specification

CDA ASTM Asarcon SAE AMS Federal Military Other
C63000 B150
B150M
  J461
J463
4640 QQ-C-465B AMD1    

Chemical Composition

Cu%1 Sn% Zn% Fe% Ni% Al% Mn% Si%
Chemical Composition according to AMS 4640

1Cu value includes Ag.
Note: Cu + Sum of Named Elements, 99.5% min. Single values represent maximums.
 
Rem.
 
0.20
 
0.30
2.00-
4.00
4.00-
5.50
9.00-
11.00
 
1.50
 
0.25

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in3 at 68 °F)
C63000 30 0.274

Mechanical Properties

Mechanical Properties according to AMS 4640

C63000

HR50 Drawn and Stress Relieved Temper, or TQ50 Temper Annealed

SIZE RANGE: UP TO 1" ROUNDS, HEXAGONS, AND OCTOGONS INCLUSIVE
Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, in 4D, min Hardness Remarks
ksi MPa ksi MPa % min to max HB  
110 760 68 470 10 201-248
SIZE RANGE: OVER 1" TO 2" ROUNDS, HEXAGONS, AND OCTOGONS INCLUSIVE
Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, in 4D, min Hardness Remarks
ksi MPa ksi MPa % min to max HB  
110 760 60 415 10 201-248
SIZE RANGE: OVER 2" TO 3" ROUNDS, HEXAGONS, AND OCTOGONS INCLUSIVE
Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, in 4D, min Hardness Remarks
ksi MPa ksi MPa % min to max HB  
105 725 55 380 10 187-241
SIZE RANGE: OVER 3" TO 5" ROUNDS, HEXAGONS, AND OCTOGONS INCLUSIVE
Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, in 4D, min Hardness Remarks
ksi MPa ksi MPa % min to max HB  
100 690 50 345 10 187-241

Physical Properties

Physical Properties provided by CDA

  US Customary Metric
Melting Point - Liquidus 1930 °F 1054 °C
Melting Point - Solidus 1895 °F 1035 °C
Density 0.274 lb/in3 at 68 °F 7.58 gm/cm3 at 20 °C
Specific Gravity 7.58 7.58
Electrical Conductivity 7% IACS at 68 °F 0.041 MegaSiemens/cm at 20 °C
Thermal Conductivity 22.6 Btu/sq ft/ft hr/°F at 68 °F 39.1 W/m at 20 °C
Coefficient of Thermal Expansion 68-572 9 · 10-6 per °F (68-572 °F) 15.5 · 10-6 per °C (20-300 °C)
Specific Heat Capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 20 °C
Modulus of Elasticity in Tension 17500 ksi 120650 MPa
Modulus of Rigidity 6400 ksi 44127 MPa

Fabrication Properties

Fabrication Properties provided by CDA
Joining Technique Suitability
Soldering Not Recommended
Brazing Fair
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Good
Spot Weld Good
Seam Weld Good
Butt Weld Good
Capacity for Being Cold Worked Poor
Capacity for Being Hot Formed Good
Forgeability Rating 75

Thermal Properties

Thermal Properties provided by CDA
Treatment Temp./Time - US Temp./Time - SI
Stress Temperature    
Solution Minimum    
Solution Maximum    
Solution Time    
Solution Medium    
Precipitation Value    
Precipitation Time    
Precipitation Medium    
Annealing Minimum 1100 594
Annealing Maximum 1300 705
Annealing Time    
Hot Works Minimum 1450 788
Hot Works Maximum 1700 927

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