C64200-4634

Manufacturer of Custom Machined Parts

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

CDAASTMSAEAMSFederalMilitaryOther
C64200B150 B150MJ461 J4634634QQ-C-465

Chemical Composition

Cu%1Pb%Sn%Zn%Fe%Ni%2Al%Mn%Si%
Rem.0.050.200.500.300.256.30-7.600.101.50-2.20

Chemical Composition according to AMS 4634

¹Cu value includes Ag. ²Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.5% min. Single values represent maximums.

Machinability

Copper Alloy UNS No.Machinability RatingDensity (lb / in³ at 68 °F)
C64200600.278

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, minYield Strength, at 0.5% Extension Under Load, minElongation, in 4D, minHardness, internalRemarks
ksiMPaksiMPa%HRB
90621453109>80 inclusive

Size Range: 1/2" to 1" Bars and Rods Inclusive

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, min Elongation, in 4D, min Hardness, internalRemarks
ksiMPaksiMPa%HRB
855864531012>80 inclusive

Size Range: Over 1" to 2" Bars and Rods Inclusive

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, min Elongation, in 4D, min Hardness, internalRemarks
ksiMPaksiMPa%HRB
805524229012>80 inclusive

Size Range: Over 2" to 3" Bars and Rods Inclusive

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, min Elongation, in 4D, minHardness, internalRemarks
ksiMPaksiMPa%HRB
755173524115>80 inclusive

Physical Properties

 US CustomaryMetric
Melting Point - Liquidus1840 °F 1004 °C
Melting Point - Solidus1800 °F 982 °C
Density0.278 lb/in³ at 68 °F 7.69 gm/cm³ at 20 °C
Specific Gravity7.697.69
Electrical Conductivity8% IACS at 68 °F 0.047 MegaSiemens/cm at 20 °C
Thermal Conductivity26 Btu/sq ft/ft hr/°F at 68 °F 45 W/m at 20 °C
Coefficient of Thermal Expansion 68-57210 · 10-6 per °F (68-572 °F)17.3 · 10-6 per °C (20-300 °C)
Specific Heat Capacity0.09 Btu/lb/°F at 68 °F377.1 J/kg at 20 °C
Modulus of Elastic in Tension16000 ksi110317 MPa
Modulus of Rigidity6000 ksi41369 MPa

Fabrication Properties

TechniqueSuitability
SolderingNot Recommended
BrazingFair
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingFair
Coated Metal Arc WeldingFair
Spot WeldFair
Seam WeldFair
Butt WeldFair
Capacity for Being Cold WorkedPoor
Capacity for Being Hot FormedExcellent
Forgeability Rating80
Machinability Rating60

Thermal Properties

TreatmentMinimum *Maximum *
Annealing11001300
Hot Treatment13001600

* Temperature is measured in Fahrenheit

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