Introduction
UNS C18200 chromium copper alloys are primary alloys, which are heat treated and cold worked to provide electrical conductivity of 80% IACS and hardness. They are used in applications that require deformation resistance at high temperatures.
The following datasheet will discuss in detail about UNS C18200 chromium copper alloy.
Chemical Composition
The following table shows the chemical composition of UNS C18200 copper alloys.
| Element | Content (%) |
|---|---|
| Cu | 99.1 |
| Cr | 0.9 |
Physical Properties
The physical properties of UNS C18200 copper alloys are given in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.89 g/cm3 | 0.321 lb/in3 |
| Melting point | 1070°C | 1958°F |
Mechanical Properties
The mechanical properties of UNS C18200 copper alloys are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Rockwell B (50.8 – 76.2 mm/2.00 – 3.00 in) | 65 | 65 |
| Hardness, Rockwell B (25.4 – 50.8 mm/1.00 – 2.00 in) | 70 | 70 |
| Hardness, Rockwell B (≤25.4 mm/1.00 in, heat treated) | 75.0 | 75.0 |
| Tensile strength at break (any thickness) | 379 MPa | 55000 psi |
| Yield strength (0.500, any thickness) | 379 MPa | 55000 psi |
| Modulus of elasticity | 117 GPa | 17000 ksi |
| Poissons ratio | 0.181 | 0.181 |
| Shear modulus | 49.6 GPa | 7200 ksi |
Thermal Properties
The thermal properties of UNS C18200 copper alloys are tabulated below.
