C18000 Copper
C18000 copper (copper-nickel-silicon-chromium, CuNiSiCr) is a high-strength, heat-treatable alloy with good electrical and thermal conductivity and excellent resistance to softening at elevated temperatures. It is a beryllium-free RWMA Class 3 material, the benchmark for resistance welding electrodes and wheels, mold holders and components that combine mechanical strength and conductivity.
| UNS | ASTM / ASME | RWMA | EN | DIN | JIS |
|---|---|---|---|---|---|
| C18000 | — | Class 3 | — | — | — |
| % | Ni | Si | Cr | Fe | Co | Cu |
|---|---|---|---|---|---|---|
| Min | 1.80 | 0.40 | 0.10 | ---- | ---- | ---- |
| Max | 3.00 | 0.80 | 0.80 | 0.15 | ---- | Bal. |
Hot rolledTF00 (AT) · TH04 temper
Hot forgedTF00 (AT) · TH04 temper
Cold drawnTF00 (AT) · TH04 temper
Round bars1/2" – 4"12.7 mm – 101.6 mm
Plates1/8" – 6"3.18 mm – 152.4 mm- Resistance welding electrodes
- Welding wheels and tips
- Electrode holders and fixtures
- Sprue bushings
- Injection mold cavities
- Hot runner systems
- Mold inserts
- Contacts and switching
- High-temperature components
Note: The information and values in this data sheet are provided for reference only and may vary depending on manufacturing, treatment and application conditions. They do not constitute guaranteed specifications, so use and interpretation of this data is the user's responsibility.
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