METHOD FOR MANUFACTURING HIGH-CARBON CHROMIUM STEEL WIRE AND STRUCTURAL PARTS OF MACHINE

PROBLEM TO BE SOLVED: To provide a method for manufacturing a high-carbon chromium steel wire having good spheroidized structure by single spheroidizing annealing without generating cracks in the inside and to provide the structural parts of a machine such as bearings and various types of shafts excellent in wear resistance and fatigue characteristics. SOLUTION: After finishing a wire containing >=0.7% C and >=0.5% Cr after hot rolling into a prescribed shape by performing elongation the total reduction of area of which is 30-80% at a temperature not higher than the transformation point Ac1, spheroidizing annealing is performed. Elongation the reduction of area of which is >=30% is performed to the resultant wire at a temperature not higher than the transformation point Ac1. When expressing the reduction of area of wire drawing by DR and the total reaction (%) of area obtained by adding the reduction of area of the elongation to that of the wire drawing by TR, the wire drawing is performed at the reduction of area which satisfies DR=0.5% Cr and is manufactured by the above process is adopted as the base stock.