MEDIUM CARBON STEEL WIRE ROD PROCESSED GOOD USING THE SAME AND METHODS FOR MANUFACTURING THEREOF

摘要

The present invention is to accelerate the spheroidization rate of the medium-carbon steel wire to finish the heat treatment quickly. It is intended to provide a processed product using the same, a method of manufacturing the same. Medium carbon steel wire according to an embodiment of the present invention in weight%, C: 0.2 to 0.5%, Si: 0.03 to 0.4%, Mn: 0.5 to 1.5%, P: 0 to 0.02%, S: 0 to 0.01% , Al: 0.02 to 0.05%, N: 0.006 to 0.01%, the remainder contains Fe and other impurities, AlN is precipitated therein, and 20 or more AlNs of 30 nm or less are distributed per μm ² .