| 摘要 |
<p>A high-carbon steel wire or steel therefor excellent in workability in wire drawing and a process for producing the same. The wire contains on the weight basis 0.90-1.10 % of carbon, not more than 0.40 % of silicon and not more than 0.50 % of manganese; not more than 0.02 % of phosphorus, not more than 0.01 % of sulfur and not more than 0.003 % of aluminum; and the balance consisting of iron and inevitable impurities. Further it has a microstructure wherein the area rate of the upper bainite structure formed by two-stage transformation is 80 % or above and the Hv value is 450 or less. It may further contain 0.10-0.30 % of chromium as the alloying component.</p> |
