Beryllium Copper (BeCu) is a high-performance copper alloy that combines exceptional mechanical strength with excellent electrical and thermal conductivity. It is corrosion resistant, non-magnetic, and non-sparking, making it ideal for demanding applications in electrical, aerospace, and industrial sectors.
| No. | Property | Typical Value | Unit |
| 1 | Density | 8.3 | g/cm³ |
| 2 | Electrical Conductivity | 20–60 | % IACS |
| 3 | Thermal Conductivity | 105–130 | W/m·K |
| 4 | Modulus of Elasticity | 128 | GPa |
| 5 | Tensile Strength (After Aging) | 1100 | MPa |
| 6 | Yield Strength | 900 | MPa |
| 7 | Elongation | 2–25 | % |
| 8 | Hardness | 200–420 | HV |
| Element | Symbol | Typical Composition (%) |
| Copper | Cu | Balance |
| Beryllium | Be | 1.8–2.0 |
| Cobalt + Nickel | Co + Ni | 0.2–0.6 |
| Iron | Fe | ≤0.15 |
| Others | — | ≤0.1 |
| Form | Thickness (mm) | Width (mm) | Length (mm) | Tolerance (mm) |
| Strip | 0.05 – 3.0 | up to 300 | Coil or Cut Length | ±0.02 – ±0.1 |
| Foil | 0.01 – 0.05 | up to 200 | Coil | ±0.005 |
| Sheet | 3.0 – 10.0 | up to 600 | Custom | ±0.1 |
✔ Electrical connectors and relays
✔ Precision springs and contacts
✔ Aerospace and defense components
✔ Non-sparking tools
✔ Telecommunications equipment
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