STEEL WIRE ROD WITH EXCELLENT MECHANICAL DESCALABILITY, AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a steel wire rod having excellent scale removing property with respect to mechanical descaling and its manufacturing method. SOLUTION: The steel wire rod has a ferrite part composed of steel having, by mass,≤1.1% C and 0.05 to 0.80% Si as components and a scale layer adhering to the surface of the ferrite part, and the average concentration of Si in the scale in the interface part of the scale layer which is contacted with the interface of the ferrite part is regulated so that it is≥2.0 times the concentration of Si in the ferrite part. It is preferable that the Si-concentrated region where the concentration of Si in the scale is≥2.0 times the concentration of Si in the ferrite part comprises≥60 area % of the interface part of the scale layer. COPYRIGHT: (C)2003,JPO