| 摘要 |
PROBLEM TO BE SOLVED: To provide a pearlite rail which is less liable to form a martensitic structure and hardly causes breakage. SOLUTION: The pearlite rail comprises, by mass%, 0.6-1.3 C, 0.05-1.0 Si, 0.05-0.25 Mn, 0.001-0.05 Al, further one or two elements as needed, among 0.05-0.25 Cr, 0.001-0.05 Mo, 0.005-0.2 V, 0.001-0.01 Ti, 0.001-0.03 N, 0.001-0.05 Nb, 0.01-1 Ni, 0.01-1 Cu, 0.0005-0.02 Mg, 0.001-0.050 Ca and 0.0005-0.01 B, while satisfying Mn+Cr+1.5Mo+0.4V+0.15Ni≤0.25%, and the balance Fe with unavoidable impurities. COPYRIGHT: (C)2006,JPO&NCIPI
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