Copper Alloy (UNS C14520)

Topics Covered

Chemical Composition
Mechanical Properties
Other Designations


Copper (Cu) is a widely used metal due to its ductility and excellent thermal and electrical conductivity.

The UNS numbers C10100 to C13000 comprise of pure copper types. Pure copper is soft and malleable metal. UNS C14520 is a phosphorus-deoxidized copper alloy.

The following datasheet discusses the chemical composition and properties of copper UNS C14520.

Chemical Composition

The chemical composition of copper UNS C14520 is given in the following table.

Element Content (%)
Copper, Cu + Silver, Ag 99.9
Tellurium, Te 0.40-0.7
Phosphorus, P 0.004-0.020

Mechanical Properties

The mechanical properties of UNS C14520 copper rod (OS015-temper) are tabulated below.

Properties Metric Imperial
Tensile strength 228 MPa 33 ksi
Yield strength 76 MPa 11 ksi
Elongation 46% 46%
Shear strength 152 Mpa 22 ksi
Rockwell, F 43 43

Other Designations

Equivalent materials to UNS C14520 copper alloy are the following:

  • ASTM B301
  • ASTM B216


Copper UNS C14520 finds applications in:

  • Microwave tubes
  • Hollow conductors
  • Rectifiers
  • Transistor components
  • Glass-to-metal seals
  • Coaxial cables

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