Zirconium Copper Alloy UNS C15100

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Fabrication and Heat Treatment
     Annealing
     Cold Working
     Welding
     Forging
     Machinability
     Hot Working
Applications

Introduction

Copper alloys are available in a variety of forms. UNS C15100 alloy is a zirconium copper alloy.

It has excellent corrosion resistance along with excellent hot or cold workability. It is often used in high temperature circuit breakers, commutators and soldering welding tips. 

The following datasheet provides an overview of UNS C15100 alloy.

Chemical Composition

The chemical composition of UNS C15100 alloy is outlined in the following table.

Element Content (%)
Cu 99.9
Zr 0.050-0.15
Al 0.0050
Fe 0.0050
Mn 0.0050

Physical Properties

The following table shows the physical properties of UNS C15100 alloy.

Properties Metric Imperial
Density 8.94 g/cm³ 0.323 lb/in³

Mechanical Properties

The mechanical properties of UNS C15100 alloy are displayed in the following table.

Properties Metric Imperial
Hardness, Rockwell B 32 32
Tensile strength 295 MPa 42800 psi
Yield strength 240 MPa 34800 psi
Elongation at break (In 50 mm) 22.00% 22.00%
Machinability (UNS C36000 (free-cutting brass) = 100) 20 20

Thermal Properties

The thermal properties of UNS C15100 alloy are given in the following table.

Properties Metric Imperial
Thermal expansion co-efficient (@20-300°C/68-572°F) 17.7 µm/m°C 9.83 µin/in°F
Thermal conductivity (@20°C/68°F) 360 W/mK 2500 BTU in/hr.ft².°F

Other Designations

Equivalent material to UNS C15100 alloy is ASTM B747.

Fabrication and Heat Treatment

Annealing

UNS C15100 alloy can be annealed between 449 and 552°C (840 and 1025°F).

Cold Working

UNS C15100 alloy has excellent cold working capacity.

Welding

Welding processes suitable for UNS C15100 alloy include brazing, soldering and butt welding. Welding processes not recommended for this alloys include seam welding, oxyacetylene welding, coated metal arc welding, spot welding and gas shielded arc welding.

Forging

UNS C15100 alloy can be forged between 760 and 871°C (1400 and 1600°F).

Machinability

The machinability rating of UNS C15100 alloy is 20.

Hot Working

UNS C15100 alloy can be hot formed in an excellent manner.

Applications

UNS C15100 alloy is used in applications that include:

  • Soldering welding tips
  • Switches
  • Commutators
  • High temperature circuit breakers
  • Rectifiers
  • Stub bases for power transmitters

 

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