Aug 6 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesFabrication 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.