Copper Nickel Phosphorus Alloy UNS C19000

Topics Covered

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

Introduction

Copper alloys are many in number and each copper alloy has specific properties based on its environment, manufacturing processes and applications. Given below are a few copper alloy forms:

  • Beryllium copper
  • Nickel silver
  • Tin bronze
  • Brass
  • Phosphor bronze
  • Gunmetal
  • Aluminum bronze
  • Copper-nickel

UNS C19000 copper nickel phosphorus alloys are high copper alloys. The datasheet below provides an overview of UNS C19000 copper alloys.

Chemical Composition

The chemical composition of UNS C19000 copper nickel phosphorus alloys is outlined in the following table.

Element Content (%)
Cu 98.7
Ni 1.1
P 0.25

Physical Properties

The following table shows the physical properties of UNS C19000 copper nickel phosphorus alloys.

Properties Metric Imperial
Density 8.87 g/cc 0.320 lb/in³

Mechanical Properties

The mechanical properties of UNS C19000 copper nickel phosphorus alloys are displayed in the following table.

Properties Metric Imperial
Tensile strength 262-793 MPa 38000-115000 psi
Yield strength (depending on temper) 138-552 MPa 20000-80100 psi
Elongation at break (in 50.8 mm) 50.00% 50.00%
Machinability (UNS C36000 (free-cutting brass) = 100) 30 30
Poisson's ratio 0.34 0.34
Elastic modulus 117 GPa 16969 ksi

Fabrication and Heat Treatment

Annealing

UNS C19000 copper alloys are annealed at temperature between 482 and 704°C (900 and 1300°F)

Cold Working

UNS C19000 copper alloys can be cold worked in an excellent manner.

Welding

The welding processes that can be used for UNS C19000 copper alloys include oxyacetylene welding, soldering, gas shielded arc welding, brazing, seam welding, spot welding and butt welding. Coated metal arc welding is not recommended for these alloys.

Forging

UNS C19000 copper alloys can be forged between 704 and 843°C (1300 and 1550°F). These alloys have a hot forgeability rating of 65.

Machinability

UNS C19000 copper alloys have a machinability rating of 30.

Hot Working

UNS C19000 copper alloys have excellent hot forming capacity.

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