| 摘要 |
PROBLEM TO BE SOLVED: To provide a wire rod excellent in wire drawability and to inexpensively manufacture a steel wire using the wire rod as a stock in high yield with high productivity. SOLUTION: A steel is used which has a composition ansisting of 0.75-0.92% C, 0.1-1.0% Si, 0.1-1.0% Mn, <=1.0% Cr, <=0.5% Cu, <=1.0% Ni, <=2.0% Co, <=0.5% Mo, <=0.5% W, <=0.2% V, <=0.1% Nb, <=0.03% REN, <=0.003% Ca, <=0.003% Mg, <=0.005% B, ad the balance Fe with impurities, in which the contents of Al, insol. Al, Ti, N, P, S, and O among the impurities are regulated to <=0.0020%, <=0.0012%, <=0.0020%, <=0.005%, <=0.012%, <=0.01%, and <=0.0020%, respectively, and also in which Ti(%)×N(%)<=6×10-6 and N(%)-1.3B(%)-0.3Ti(%)<=0.0035% are satisfied. It is preferable to regulate the contents of Sn, As, and Sb among the impurities to <=0.005%, <=0.003%, and <=0.003%, respectively.
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