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By adding Zr and other trace elements to the copper matrix, the alloy exhibits excellent electrical properties, thermal conductivity, and bending formability. It is widely used in high current connectors, lead frames, rectifiers, high-temperature switches, and heat dissipation components.
| Physical properties | ||||||
| Density (g/cm³) |
Modulus of elasticity (GPa) |
Thermal expansion coefficient (×10-6/K) |
Electrical conductivity (%IACS) |
Thermal conductivity W(m·K) |
||
| 8.9 | 121 | 17.6 | 90 | 350 | ||
| Mechanical properties | Bend properties | |||||
| Temper | Hardness HV |
Tension test | 90°R/T(Thick＜0.8mm) | |||
| Tensile Strength Rm/MPa |
Yield Strength MPa |
Elongation % |
Good way | Bad way | ||
| H01 | 80-110 | 280-320 | ≥180 | ≥22 | 0 | 0 |
| H02 | 90-120 | 300-360 | ≥240 | ≥15 | 0.5 | 0.5 |
| H03 | 100-130 | 330-390 | ≥310 | ≥8 | 1 | 1 |
| H04 | 110-140 | 370-430 | ≥350 | ≥4 | 1.5 | 1.5 |
| H06 | 120-150 | 410-460 | ≥395 | ≥2 | 2 | 2 |
| H08 | ≥140 | 440-500 | ≥420 | ≥1 | 2.5 | 2.5 |
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