WEAR RESISTANT STEEL HAVING EXCELLENT WEAR-RESISTANCE AND METHOD FOR MANUFACTURING THE SAME

摘要

The present invention relates to a wear resistant steel having excellent wear resistance as well as excellent wear characteristics and a manufacturing method thereof. The wear resistant steel having excellent wear resistance includes 2.5-4.5 weight% of manganese, (12-Mn)/40<=C<=(15.5-Mn)/40, 0.05-1.0 weight% of silicon, the balance consisting of iron, and other unavoidable impurities. A microstructure includes 95% or more of martensite on the basis of the area fraction. The aspect ratio of a microstructure grain is 1.5 or more.