WIRE ROD FOR HIGH STRENGTH STEEL FIBER, HIGH STRENGTH STEEL FIBER AND MANUFACTURING METHOD THEREOF

摘要

The present invention provides a wire rod for steel fiber, a steel fiber, and a method for manufacturing the same, which can secure high strength of 1,500 MPa or more without LP heat treatment during new forming. The wire rod for high strength steel fiber according to an embodiment of the present invention is, by 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%, remaining Fe and unavoidable impurities, and the microstructure is a ferrite single phase .