0102030405
High Elastic C17200 Beryllium Copper Foil from China Suppliers and Factory for Precision Applications
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
Frequently Asked Questions
Q: What is the chemical composition of this Beryllium Copper alloy?
A: The alloy consists of Beryllium (1.8 – 2.0%), Cobalt + Nickel (≥0.2%), and the remaining balance is Copper (Cu), with impurities kept strictly at ≤0.15%.
Q: What are the mechanical properties of this material?
A: It features a tensile strength of 1250 – 1500 MPa, yield strength of ≥1100 MPa, hardness of HV 360 – 430, and elongation of 2 – 8%.
Q: What are the key physical properties of the alloy?
A: The alloy has a density of 8.25 g/cm³, electrical conductivity of 20 – 28% IACS, thermal conductivity of approximately 105 W/m·K, and an elastic modulus of around 128 GPa.
Q: Why is this alloy suitable for precision spring clips and connectors?
A: It offers high elasticity recovery, excellent anti-stress relaxation performance, and strong anti-fatigue properties, ensuring long-term stability and reliability in high-frequency environments.
Q: Can this material be post-processed or surface-treated?
A: Yes, it has a smooth surface free of scratches or oxidation, making it highly suitable for electroplating and other precision mechanical processing operations.