BM 180
UNS C18000RWMA Class 3
Precipitation-hardenable alloy for mold inserts and cavities with high heat dissipation and for resistance welding electrode holders. Accepts nitriding to reinforce surface hardness.
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Chemical composition
Chemical composition
| Copper | Remainder |
|---|---|
| Chromium | 0.1–0.8% |
| Nickel | 1.8–3.0% |
| Silicon | 0.4–0.8% |
| Iron | máx. 0.2% |
| Others | máx. 0.5% |
Mechanical properties
Mechanical properties
| Tensile strength | 648–690 MPa |
|---|---|
| Yield strength | 496–517 MPa |
| Elongation | 9–13 % |
| Rockwell B hardness | 92–96 |
| Brinell hardness | 194–215 |
| Density | 8.75 kg/dm³ |
Informational values. Vary by manufacturing process, geometry, and dimensions.
Thermal & electrical
Thermal & electrical properties
| Electrical conductivity | 44–48 %IACS |
|---|---|
| Thermal conductivity (20 °C) | 200–208 W/m·K |
Available formats
Formats
BilletMachinedPlate
Typical applications
Typical applications
- Welding electrode holders
- Projection welding electrodes
- Plastic mold cavities
- Aluminum injection pistons
- Soap-mold cavities
Manufacturing
Manufacturing processes
- Extrusion
- Forging