Copper Alloy (UNS C82800)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations


Copper, in combination with other metals, is characterized by its potential to form alloys that modify its color and improve its workability, durability and corrosion and wear resistance. The most common alloys include bronze, brass and cupro-nickel.

The following datasheet discusses the chemical composition and properties of copper UNS C82800.

Chemical Composition

The chemical composition of copper UNS C82800 is given in the following table.

Element Content (%)
Beryllium, Be 2.5-2.85
Cobalt, Co 0.35-0.7
Iron, Fe 0.25
Silicon, Si 0.2-0.35
Nickel, Ni 0.2
Aluminum, Al 0.15
Tin, Sn 0.1
Zinc, Zn 0.1
Chromium, Cr 0.09
Lead, Pb 0.02
Copper, Cu Remainder

Physical Properties

The following table discusses the physical properties of copper UNS C82800.

Properties Metric Imperial
Density 8.09 g/cm3 0.292 lb/in3

Mechanical Properties

The mechanical properties of UNS C82800 copper alloy (M01-Temper) are tabulated below.

Properties Metric Imperial
Tensile strength 550 MPa 79800 psi
Yield strength 345 MPa 50000 psi
Elongation 10% 6%
Rockwell B hardness 88 88

Thermal Properties

The thermal properties of UNS C82800 copper alloys are outlined in the following table.

Properties Metric Imperial
Thermal expansion coefficient (@ 20-200°C/68-392°F) 95 µm/m°C 659 µin/in°F
Thermal conductivity (@ 20°C/68°F) 0.420 W/mK 0.1 BTU in/hr.ft3.°F

Other Designations

Equivalent materials to UNS C82800 copper alloy are the following:

  • CA 828
  • FED QQ-C-390
  • MIL-T-16243
  • MIL-C-19464


Copper UNS C82800 finds application in:

  • Bearings
  • Molds for plastic parts

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