| abstract |
ABSTRACT OF THE DISCLOSURE The wear resistance rail contains 0.50 to 0.85 wt.% of C, 0.10 to 1.0 wt.% of Si, 0.50 to 1.50 wt.% of Ma, less than 0.035 wt.% of P, less than 0.035 wt.% of S, less than 0.050wt.% of Al, and the balance of iron and impurities. The web has a high toughness tempered bainite structure, tempered martensite structure or a tempered mixed structure of bainite and martensite and a head of rail having high wear resistance property preventing unstable destructive crack from propagating. The rail can further contain oneor more of 0.05 to 1.50 wt.% of Cr, 0.05 to 0.20 wt.% of Mo, 0.03 to 0.10 wt.% of V, 0.10 to 1.00 wt.% of Ni, and 0.005 to 0.050 wt.% of Nb. |