Wear-resistant steel plate having excellent wear resistance at high temperatures and excellent bending workability and method for manufacturing the same

A wear-resistant steel plate having excellent wear resistance at high temperatures and excellent bending workability, comprising, in terms of mass %,

• C:
• not less than 0.13% and not more than 0.18%,
• Si:
• not less than 0.5% but less than 1.0%,
• Mn:
• not less than 0.2% and not more than 0.8%,
• P:
• not more than 0.020%,
• S:
• not more than 0.010%,
• Cr:
• not less than 0.5% and not more than 2.0%,
• Mo:
• not less than 0.03% and not more than 0.30%,
• Nb:
• more than 0.03% but not more than 0.10%,
• Al:
• not less than 0.01% and not more than 0.20%,
• B:
• not less than 0.0005% and not more than 0.0030%, and
• N:
• not more than 0.010%,
• with a remainder being Fe and unavoidable impurities,
• wherein an element composition is such that HI defined below is 0.7 or greater and Ceq defined below exceeds 0.50, and
• an HB value (Brinell hardness) at 25° C. is not less than 360 and not more than 440,
• HI=[C]+0.59[Si]−0.58[Mn]+0.29[Cr]+0.39[Mo]+2.11([Nb]−0.02)−0.72[Ti]+0.56[V]
• Ceq=[C]+[Si]/24+[Mn]/6+[Ni]/40+[Cr]/5+[Mo]/4+[V]/14
• wherein [C], [Si], [Mn], [Ni], [Cr], [Mo], [Nb], [Ti] and [V] represent amounts (mass %) of C, Si, Mn, Ni, Cr, Mo, Nb, Ti and V, respectively.