HIGH CARBON STEEL WIRE HAVING EXCELLENT BENDING-FATIGUE PROPERTIES AND DUCTILITY AND METHOD FOR MANUFACTURING THEREOF

摘要

The purposes of the present invention are to manufacture a steel wire with excellent rigidity, excellent fatigue properties, and excellent ductility and overcome a limit to an existing drawing rate. The present invention contains 0.8-1.0 wt% of C, 0.8-1.2 wt% of Si, 0.2-0.6 wt% of Mn, 0.03-0.07 wt% of Sb, residual Fe, and unavoidable impurities. A minute tissue contains more than 95 wt% of perlite and a residual free ferrite or cementite. [Reference numerals] (AA) Pearlite colony 1; (BB) Perlite block; (CC) Pearlite colony 2; (DD) Pearlite colony 3