| 摘要 |
Disclosed are wear-resistant steel and a manufacturing method thereof capable of obtaining cost efficiency by adding manganese (Mn) instead of expensive alloying elements, such as chrome (Cr) and nickel (Ni), and also obtaining strength by refining a tissue through controlled rolling and cooling. The method for manufacturing wear-resistant steel comprises a step of reheating a slab composed of 0.04-1.0 wt% of carbon (C), 0.1-0.3 wt% of silicon (Si), 3.0-8.0% of the manganese (Mn), 0.5-3.0 wt% of the nickel (Ni), 0.2 wt% or less of copper (Cu), 3 wt% or less of the chrome (Cr), 1 wt% or less of molybdenum (Mo), 0.01-0.05 wt% of vanadium (V), 0.01-0.05 wt% of niobium (Nb), and the remainder consisting of iron (Fe) and other inevitable impurities at 1000-1200°C; a step of hot-rolling the reheated slab; and a step of cooling the hot-rolled slab at the finish cooling temperature (FCT) of 350°C or lower. |
