Copper Alloy (UNS C82400)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties


Copper forms alloys more freely than most metals and with a wide range of alloying elements to produce alloys of nickel silver, tin bronze, copper nickel, etc.

UNS C82400 is a high-copper alloy grade cast copper alloy. The following datasheet discusses the chemical composition and properties of copper UNS C82400.

Chemical Composition

The chemical composition of copper UNS C82400 is given in the following table.

Element Content (%)
Beryllium, Be 1.60-1.85
Cobalt, Co 0.2-0.65
Iron, Fe 0.2
Nickel, Ni 0.2
Aluminum, Al 0.15
Zinc, Zn 0.1
Tin, Sn 0.1
Lead, Pb 0.02
Copper, Cu Balance

Physical Properties

The physical properties of UNS C82400 copper alloys are outlined in the following table.

Properties Metric Imperial
Density 8.31 g/cm3 0.3 lb/in3

Mechanical Properties

The mechanical properties of UNS C82400 copper alloy (TB00-temper) are tabulated below.

Properties Metric Imperial
Tensile strength 415 MPa 60200 psi
Yield strength 140 MPa 20300 ksi
Elongation 40 % 40 %
Modulus of elasticity 128 GPa 18600 ksi
Rockwell B hardness 59 59

Thermal Properties

The thermal properties of UNS C82400 copper alloys are outlined in the following table.

Properties Metric Imperial
Thermal expansion co-efficient (@ 20-200°C/68-392°F) 17 µm/m°C 9.44 µin/in°F
Thermal conductivity (@ 20°C/ 68°F) 109 W/mK 756 BTU in/hr.ft2.°F


Copper UNS C82400 finds application in:

  • Bushings, cams and bearings
  • Pump components
  • Corrosion-resistant valves
  • Pressure housings
  • Gears
  • Permanent molds for brass and aluminum castings.

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