Copper-nickel-beryllium alloys
Heat-treatable CuNiBe alloy (0.2–0.6% Be) reaching very high strength among heat-treated coppers, with conductivity above conventional CuNi2Be — the reference for stainless-steel welding electrodes.

Characteristics
Family characteristics
- RWMA Class 3 — high strength and conductivity
- Lower beryllium (0.2–0.6%) and 1.4–2.4% nickel
- Thermal conductivity 252–260 W/m·°K
- Electrical conductivity 58–62% IACS
- Heat-treatable for maximum performance
Typical applications
Typical applications
- Projection and spot welding electrodes
- Plastic-mold tooling
- Connectors and contacts for high-power electronics
Available alloys
Available alloys
- BM 1751HTUNS C17510
CuNiBe alloy for projection and spot welding electrodes, plastic-mold tooling, and high-power electronic components.
