| 摘要 |
<p>Provided is a copper alloy trolley cable, which is formed from a copper alloy comprising 0.15 to 0.8 wt% of Cr, 0.01 to 0.25 wt% of Zr, 0.01 to 0.1 wt% of Si, 0.1 to 30 ppm of Hf, 10 ppm or less of oxygen, and Cu and inevitable impurities as the balance, and which has a crystal grain size of 30 µm or smaller. The copper alloy can also further comprise 0.001 to 0.05 wt% of Mg.</p> |
