WIRE ROD FOR HIGH-STRENGTH STEEL FIBER, HIGH-STRENGTH STEEL FIBER, AND METHOD FOR MANUFACTURING SAME

摘要

The present invention provides a wire rod for a steel fiber, a steel fiber, and a method for manufacturing same, capable of securing a high strength of 1,500 MPa or higher without an LP heat treatment during wire drawing. According to one embodiment of the present invention, the wire rod for a high-strength steel fiber comprises, in weight%, C: 0.01% to 0.03%, Si: 0.05% to 0.15%, Mn: 1.0% to 2.0%, P: 0.05% to 0.15%, Al: 0.005% or less (excluding 0), N: 0.01% or less (excluding 0), S: 0.03% or less (excluding 0), Sn: 0.02% to 0.08%, and the remainder of Fe and inevitable impurities, wherein the microstructure is single-phase ferrite.