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AMS 4640-C63000

Stocked alloy specs

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Reference guide

Stocked size schedules

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✔ Standard-stocked product

Extruded and drawn

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»

AMS 4640-C63000 spec sheet AMS 4640-C63000 size schedule AMS 4640-C63000 brochure Weight calculator Standard products

AMS 4640-C63000

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.
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 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
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
Machinability rating 30

Thermal properties

Thermal properties provided by CDA
*Temperature is measured in Fahrenheit.
Treatment Minimum* Maximum*
Annealing 1100 1300
Hot treatment 1450 1700

Common fabrication processes

Forging, hot forming

Common fabrication processes provided by CDA

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C14500 C23000 C24000 C26000 C31400 C31600 C46400 C51000 C52100 C53400 C54400 C62400 C63000 C63020 C64200 C64210 C65100 C67300 C67400 C67410 C67600 C69300 C69400 C69430 C72900 (AMS 4596) C72900 (AMS 4597)
C72900 (AMS 4598) C83600 C83800 C84200 C84400 C84800 C85700 C86200 C86300 C86400 C86500 C86700 C87850 C89320 C89325 C89520 C89831 C89833 C89835 C89844 C90300 C90500 C90700
C90800 C91000 C91100 C91300 C91600 C91700 C92200 C92300 C92500 C92700 C92800 C92900 C93200 C93400 C93500 C93600 C93700 C93800 C93900 C94000 C94100 C94300 C94700
C94700HT C94800 C95200 C95300 C95300HT C95400 C95400HT C95410 C95410HT C95500 C95500HT C95510 C95520HT C95600 C95800 C95900 C96400 C96900HT C97300 C97600 C97800 C99500 CONCAST380
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