Product searchGlobal product supply Busbars
C19720
Related standardsCDA C19720、JASO JC300
ApplicationsBusbars for junction blocks, high current terminals, power distribution components, heat sink bases, etc.
A highly conductive copper alloy that has excellent strength and stress relaxation resistance characteristics.
Ideal for busbars and large terminals that require connection reliability at high temperatures.
C19720 is a highly conductive copper alloy with superior strength and stress relaxation resistance.
Due to its superior conductivity, strength, and stress relaxation resistance characteristics, this copper alloy can reduce the size and weight of electrical and electronic components equipped with springs and suppress the increase in heat generation associated with large currents.
This product can also be procured locally from Wieland in the United States.
Chemical composition
[wt%]
| Fe | Mg | P | Cu | |
|---|---|---|---|---|
| Typical values | 0.22 | 0.13 | 0.10 | Rem. |
Physical properties
| Melting point [oC] | 1065 |
|---|---|
| Density [g/cm3@20℃] | 8.9 |
| Thermal expansion coefficient [10-6/K@20-300℃] |
17.6 |
| Thermal conductivity [W/m・K@20℃] |
310 |
| Electrical conductivity [%IACS@20℃] |
80 |
| Young’s modulus [kN/mm2] | 118 |
| Poisson’s ratio | 0.33 |
Mechanical properties
| Temper | Tensile strength [N/mm2] |
0.2 % yield strength (typical value) [N/mm2] |
Elongation [%] |
Vickers hardness [HV] |
|---|---|---|---|---|
| 1/2H | 365-435 | 330 | 10 Min. | 110-140 |
| 3/4H | 400-455 | 415 | 5 Min. | 120-150 |
| H | 415-480 | 420 | 4 Min. | 120-150 |
| EH | 450-510 | 455 | 2 Min. | 130-160 |
Bending workability (W bend, bending width=10mm)
| Temper | MBR/t | |
|---|---|---|
| Good Way | Bad Way | |
| 3/4H | 0.16 | 0.16 |
| EH | 0.16 | 0.31 |
*Please note that the values in the table are reference values and are subject to change without notice.
