0102030405
C17200 High Elastic Beryllium Copper Foil
chemical component
| Element | Content |
| Beryllium (Be) | 1.8 – 2.0 |
| Cobalt + Nickel (Co+Ni) | ≥0.2 |
| Copper (Cu) | Remaining amount |
| Impurities | ≤0.15 |
Mechanical properties
| Project | Values |
| Tensile strength | 1250 – 1500 MPa |
| Yield strength | ≥1100 MPa |
| Hardness | HV 360 – 430 |
| Elongation | 2 – 8% |
Physical properties
| Project | Values |
| Density | 8.25 g/cm³ |
| Electrical conductivity | 20 – 28% IACS |
| Thermal conductivity | ≈105 W/m·K |
| Elastic modulus | ≈128 GPa |
Product features
✔ High elasticity recovery ability, suitable for precision spring clips
✔ Excellent anti-stress relaxation performance, stable over a long period
✔ Strong anti-fatigue performance, suitable for high-frequency usage environments
✔ Smooth surface, without scratches or oxidation
✔ Can undergo electroplating processing
✔ Excellent processing performance
Typical application fields
1 Electronics
High-precision connectors, terminals, contact springs
Relays, push-button switches, elastic elements for temperature control switches
RF connectors, high-frequency probes
Battery contact tabs, high-current elastic contacts
2 Aerospace / Military
Non-magnetic connectors, fatigue-resistant and highly reliable spring elements
Satellites, radar high-frequency contact components
3 Precision machinery / instruments
Diaphragms, bellows, pressure gauge elastic elements
Sensor elastic bodies, micro-displacement mechanisms