EFTEC64T Copper Alloy Strip
The EFTEC64T is a high-strength, high-conductivity copper alloy, conforming to the EFTEC-64T standard. Particularly noteworthy is the application of temperature ageing treatment in the later stages of the alloy manufacturing process. This effect is akin to re-rolling, increasing the material's hardness and strength while simultaneously enhancing conductivity and elongation. EFTEC-64T copper alloy possesses an attractive appearance, high conductivity, electrothermal properties, excellent corrosion and oxidation resistance, high strength, ductility, hardness, fatigue resistance, plating suitability, and solderability.
Features Of EFTEC64T Copper Alloy Strip
Non-magnetic
Good stampability
Suitable for deep etching
Suitable for electroplating and good solderability
Medium tensile strength and high electrical conductivity
Warpage after half etching is reduced by residual stress control.
Properties Of EFTEC64T Copper Alloy Strip
| Chemical Composition | Cu: Balance/Sn: 0.23-0.27/Cr: 0.2-0.3/Zn: 0.18-0.26 |
| Coefficient of Thermal Expansion （10-6/K） | 17 |
| Thermal Conductivity （W/m・K） | 301 |
| Electrical Conductivity （%IACS） | 75 |
| Volume Resistivity （µΩ・m) | 0.023 |
| Melting Point （℃） | 1081 |
| Modulus of Elasticity （GPa） | 127 |
| Specific Gravity | 8.9 |
| Tensile Strength（MPa） | 490-637 |
| Elongation（%） | 5-10 min. |
| Vickers Hardness（HV） | 160-210 |
