Producer of custom machined parts, specializing in bronze and other popular alloys for your manufacturing needs.
COPPER-BASED ALLOYS
C62400-4634
CAST C64200
Aluminum is the main alloying metal added to copper in aluminum bronze alloys such as C64200, also known as C642. 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 agents such as iron, nickel, manganese, and silicon are also oftentimes added. Aluminum bronzes are most valued for their high strength and corrosion resistance.
INFORMATION
PRODUCT DESCRIPTION: Aluminum Bronze
TEMPERS: HR50 Drawn and Stress Relieved
SOLIDS: 3/16" to 6" O.D.
HEX: 1/2" to 2" O.D.
RECTANGLES: Consult Mill
STANDARD LENGTHS: 144”
TYPICAL USES
AUTOMOTIVE: valve guides (automobile engine)
ELECTRICAL: pole line hardware
FASTENERS: bolts, nuts
INDUSTRIAL: cams, gears, valve bodies, valve components, valve stems
MARINE: hardware
SIMILAR OR EQUIVALENT SPECIFICATION
CDA
ASTM
SAE
AMS
Federal
Military
Other
C64200
B150 B150M
J461 J463
4634
QQ-C-465
CHEMICAL COMPOSITION
Cu%1
Pb%
Sn%
Zn%
Fe%
Ni%2
Al%
Mn%
Si%
Rem.
0.05
0.20
0.50
0.30
0.25
6.30-7.60
0.10
1.50-2.20
MACHINABILITY
Copper Alloy UNS No.
Machinability Rating
Density(lb / in 3 at 68 °F)
C64200
60
0.278
MECHANICAL PROPERTIES
Mechanical Properties according to AMS 4634

HR50 Drawn and Stress Relieved Temper
SIZE RANGE: UP TO 1/2" BARS AND RODS INCLUSIVE
Tensile Strength, min
Yield Strength, at 0.5% Extension Under Load, min
Elongation, in 4D, min
Harness, internal
Remarks
ksi
MPa
ksi
MPa
%
HRB
90
621
45
310
9
>80 inclusive

SIZE RANGE: 1/2" TO 1" BARS AND RODS INCLUSIVE
Tensile Strength, min
Yield Strength, at 0.5% Extension Under Load, min
Elongation, in 4D, min
Harness, internal
Remarks
ksi
MPa
ksi
MPa
%
HRB
85
586
45
310
12
>80 inclusive

SIZE RANGE: OVER 1" TO 2" BARS AND RODS INCLUSIVE
Tensile Strength, min
Yield Strength, at 0.5% Extension Under Load, min
Elongation, in 4D, min
Harness, internal
Remarks
ksi
MPa
ksi
MPa
%
HRB
80
552
42
290
12
>80 inclusive

SIZE RANGE: OVER 2" TO 3" BARS AND RODS INCLUSIVE
Tensile Strength, min
Yield Strength, at 0.5% Extension Under Load, min
Elongation, in 4D, min
Harness, internal
Remarks
ksi
MPa
ksi
MPa
%
HRB
75
517
35
241
15
>80 inclusive

PHYSICAL PROPERTIES
US Customary
Metric
Melting Point - Liquidus
1840 °F
1004 °C
Melting Point - Solidus
1800 °F
982 °C
Density
0.278 lb/in3 at 68 °F
7.69 gm/cm3 at 20 °C
Specific Gravity
7.69
7.69
Electrical Conductivity
8% IACS at 68 °F
0.047 MegaSiemens/cm at 20 °C
Thermal Conductivity
26 Btu/sq ft/ft hr/°F at 68 °F
45 W/m at 20 °C
Coefficient of Thermal Expansion 68-572

10 · 10-6 per °F (68-572 °F)

17.3 · 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 Elastic in Tension
16000 ksi
110317 MPa
Modulus of Rigidity
6000 ksi
41369 MPa
FABRICATION PROPERTIES
Technique
Suitability
Soldering
Not Recommended
Brazing
Fair
Oxyacetylene Welding
Not Recommended
Gas Shielded Arc Welding
Fair
Coated Metal Arc Welding
Fair
Spot Weld
Fair
Seam Weld
Fair
Butt Weld
Fair
Capacity for Being Cold Worked
Poor
Capacity for Being Hot Formed
Excellent
Forgeability Rating
80
Machinability Rating
60
THERMAL PROPERTIES
Treatment
Minimum*
Maximum*
Annealing
1100
1300
Hot Treatment
1300
1600


SPEC SHEET


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