Copper Alloy (UNS C82200)

Topics Covered

Introduction
Chemical Composition
Mechanical Properties
Thermal Properties
Applications

Introduction

A copper alloy is an alloy made up of primarily copper, mixed with different alloying elements to give rise to an entire range of materials, each of which having maximized strength, ductility, formability, machinability, or electrical conductivity.

The following datasheet discusses the chemical composition and properties of copper UNS C82200.

Chemical Composition

The chemical composition of copper UNS C82200 is given in the following table.

Element Content (%)
Nickel, Ni 1-3
Beryllium, Be 0.35-0.8
Cobalt, Co 0.3
Silicon, Si 0.15
Copper, Cu Remainder

Mechanical Properties

The mechanical properties of UNS C82200 copper alloy (as-cast) are tabulated below.

Properties Metric Imperial
Tensile strength 345 MPa 50000 psi
Yield strength 170 MPa 24700 psi
Elongation 20 % 20 %
Modulus of elasticity 114 GPa 16500 ksi
Rockwell B hardness 55 55

Thermal Properties

The thermal properties of UNS C82200 copper alloys are outlined in the following table.

Properties Metric Imperial
Thermal expansion co-efficient (@ 20-200°C/68-392°F) 16.2 µm/m°C 9 µin/in°F
Thermal conductivity (@ 20°C/ 68°F) 183 W/mK 1270 BTU in/hr.ft2.°F

Applications

Copper UNS C82200 finds application in:

  • Water-cooled holder
  • Bushings
  • Beam welder shapes
  • Spot welding tips
  • Projection welding dies
  • Seam welder electrodes
  • Brake drums
  • Clutch rings

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