Sep 27 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Applications
Introduction
UNS C18000 copper nickel silicon chromium alloys are high copper
alloys containing high strength and good wear resistance at high
temperatures.
The datasheet given below provides an overview of UNS C18000 copper
nickel silicon chromium alloys.
Chemical Composition
The following table shows the chemical composition of UNS C18000
copper alloy.
| Element |
Content
(%) |
Copper, Cu
|
96.4
|
Chromium, Cr
|
0.45 |
Iron, Fe
|
0.15 |
Nickel, Ni
|
2.4 |
Silicon, Si
|
0.6 |
Physical Properties
The following table shows the physical properties of UNS C18000
copper nickel silicon chromium alloys.
| Properties |
Metric |
Imperial |
| Density |
8.75 g/cm3 |
0.316 lb/in3 |
Mechanical Properties
The mechanical properties of UNS C18000 copper nickel silicon
chromium alloys are displayed in the following table.
| Properties |
Metric |
Imperial |
| Hardness, Rockwell B (castings) |
90 |
90 |
| Tensile strength, ultimate (castings) |
586 MPa |
85000 psi |
| Tensile strength, yield (castings) |
483 MPa |
70100 psi |
| Elongation at break (castings) |
10.0% |
10.0% |
| Reduction of area (castings) |
20.0% |
20.0% |
| Modulus of elasticity (castings) |
114 GPa |
16500 ksi |
Applications
UNS C18000 copper alloys are used in high temperature and high
stress applications that include:
- Studs
- Welding electrodes
- Contacts
- Electrical components