The invention relates to a
hot rolled wire rod for ultra-low
carbon steel fibers and a production method of the
hot rolled wire rod. The
wire rod comprises the chemical components of, by
mass, less than or equal to 0.010% of C, less than or equal to 0.03% of Si, less than or equal to 0.20% of Mn, less than or equal to 0.020% of P, less than or equal to 0.020% of S, greater than or equal to 0.02% of Alt, 0.05-0.12% of Ti and the balance iron and inevitable impurities. The production method comprises the procedures of
continuous casting, cogging, heating, rolling,
spinning and cooling. By adding the Ti elements to ultra-low
carbon steel, through low-temperature rolling, uniform ferrite and
pearlite structures are generated, effective combination of strength and
plasticity is achieved, thus, the tensile strength of the wire rod with the specification being phi 7.0 mm is 310-360 MPa, the percentage elongation after fracture is greater than or equal to 50.0%, 1300-MPa-class steel fibers are allowed to be produced through the wire rod with the large specification under the condition that existing equipment of downstream customers is not changed, the
purchase cost is lowered, and the downstream customer selectivity is increased.