Bainite wire rod and wire for drawing and methods of producing the same

摘要

PCT No. PCT/JP94/00574 Sec. 371 Date Oct. 5, 1995 Sec. 102(e) Date Oct. 5, 1995 PCT Filed Apr. 6, 1994 PCT Pub. No. WO94/23083 PCT Pub. Date Oct. 13, 1994This invention provides bainite wire rod and wire excellent in drawability and methods of producing the same. The bainite wire rod or wire is characterized in that it contains, in weight percent, C: 0.80-0.90%, Si: 0.10-1.50% and Mn: 0.10-1.00%, if required contains Cr: 0.10-1.00%, and is limited to P: not more than 0.02%, S: not more than 0.01% and A1: not more than 0.003%, the remainder being Fe and unavoidable impurities, and has tensile strength and reduction of area determined by the following equations (1) and (2), TS/=-0.875x(TS)+158 (2)where C: carbon content (wt%), TS: tensile strength (kgf/mm2), and RA: reduction of area (%).