Description
Copper has the ability to be formed into alloys more freely than most metals, and can be combined with a broad range of alloying elements. This metal has excellent electrical and thermal conductivity of any commercial metal. There are 400 types of copper alloys with each consisting of a variety of properties that are suitable for many applications, manufacturing processes, and environments.
The following datasheet will provide details about UNS C70400 copper alloy.
Application
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 262-531 MPa | 38000-77000 psi |
| Yield strength (depending on temper) | 276-524 MPa | 40000-76000 psi |
| Elongation at break (in 50.8 mm) | 46% | 46% |
| Elastic modulus | 117 GPa | 17000 ksi |
| Poisson’s ratio | 0.34 | 0.34 |
| Machinability (UNS C36000 (free-cutting brass) = 100) | 20 | 20 |
| Shear modulus | 44.0 GPa | 6380 ksi |
Chemical Composition
| Element | Content (%) |
|---|---|
| Cu | 92.4 |
| Fe | 1.5 |
| Ni | 5.5 |
| Mn | 0.6 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.94 g/cm3 | 0.323 lb/in³ |
Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@20-300°C/68-572°F) | 17.5 µm/m°C | 9.72 µin/in°F |
| Thermal conductivity (@20°C/ 68°F ) | 64.0 W/mK | 444 BTU in/hr.ft².°F |
Fabrication and Heat Treatment
| Machinability | 20 |
| Welding | Soldering, brazing, oxyacetylene welding, gas shielded arc welding, coated metal arc welding, spot welding, seam welding, and butt welding are considered as suitable welding processes |
| Hot Working | 843 - 954°C (1550 - 1750°F). |
| Cold Working | Excellent |
| Annealing | 593 - 816°C (1100 -1500°F) |
