PEARLITE-BASED HIGH-CARBON STEEL RAIL HAVING EXCELLENT DUCTILITY AND PROCESS FOR PRODUCTION THEREOF

摘要

Disclosed is a pearlite-based high-carbon steel rail having excellent ductility, which comprises more than 0.85 mass% and not more than 1.40 mass% of C, 0.10 to 2.00 mass% of Si, 0.10 to 2.00 mass% of Mn, 0.001 to 0.01 mass% of Ti, 0.005 to 0.20 mass% of V, and less than 0.0040 mass% of N, with the remainder being Fe and unavoidable impurities. In the steel rail, the contents of Ti and V meet the requirement represented by formula (1) and a rail head comprises a pearlite structure. 5 = [V (mass%)]/[Ti (mass%)] = 20 ···formula (1)