The pearlite steel carriage rail null C which is superior in abrasion resistance and resistance fatigue

摘要

PROBLEM TO BE SOLVED: To provide a pearlite steel rail excellent in both the characteristics of wear resistance and fatigue damage resistance.;SOLUTION: The pearlite steel rail having excellent wear resistance and fatigue damage resistance has a composition comprising, by mass, C of 0.6 to 1.1%, Si of 0.1 to 1.2%, Mn of 0.4 to 1.5%, ≤0.035% P, ≤0.035% S and 0.01 to 1.0% W, further comprising, at need, one or two kinds selected from V of 0.001 to 0.50% and Nb of 0.001 to 0.05% and/or one or more selected from Cu of ≤1.0%, Ni of ≤1.0%, Cr of ≤1.5% and Mo of ≤0.5%.;COPYRIGHT: (C)2007,JPO&INPIT