Cu-Ni-Si-Cr-based copper alloy
NiSiCr
C18000
- High Heat Resistance & High Conductivity
A Cu-Ni-Si-Cr-based precipitation-hardened copper alloy that combines high strength and wear resistance with high electrical and thermal conductivity. It maintains reliable electrical performance even under harsh operating conditions.
Positioning map
Main features
- It has very high strength, hardness, and wear resistance among copper alloys.
- It has excellent heat resistance, with a half-softening temperature of 600℃.
- While maintaining high strength, it retains high levels of electrical and thermal conductivity.
Chemical composition
The chemical composition of NiSiCr is as follows.
（Weight %）
| Ni | Cr | Si | Cu |
|---|---|---|---|
| 1.8-3.0 | 0.1-0.8 | 0.4-0.8 | Rem. |
Technical Data
Mechanical properties
The mechanical properties of NiSiCr are as follows.
| Typical value | |
|---|---|
| Tensile Strength (N/mm²) |
660 |
| Elongation (%) |
16 |
| Electrical Conductivity (%IACS:293K) |
40 |
Heat resistance
NiSiCr isochronal softening characteristics are shown on the right.
It has far higher heat resistance than pure copper and can be used in high-temperature environments.
