BM 1815
UNS C18150RWMA Class 2
CuCrZr alloy for resistance welding electrodes and high-volume molds, with thermal conductivity above 312 W/m·K.
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Chemical composition
Chemical composition
| Copper | Remainder |
|---|---|
| Chromium | 0.5–1.2% |
| Zirconium | 0.07–0.3% |
| Others | máx. 0.2% |
Mechanical properties
Mechanical properties
| Tensile strength | 440–520 MPa |
|---|---|
| Yield strength | 350–466 MPa |
| Elongation | 10–18 % |
| Rockwell B hardness | 76–80 |
| Density | 8.90 kg/dm³ |
Informational values. Vary by manufacturing process, geometry, and dimensions.
Thermal & electrical
Thermal & electrical properties
| Electrical conductivity | 18–82 %IACS |
|---|---|
| Thermal conductivity (20 °C) | 312–320 W/m·K |
Available formats
Formats
BilletMachinedPlate
Typical applications
Typical applications
- Automotive welding electrodes and caps
- Robotic welding arms
- Continuous-casting molds
- Electrical contacts, studs, and dies
Manufacturing
Manufacturing processes
- Extrusion
- Forging