PEARLITIC RAIL WITH EXCELLENT WEAR RESISTANCE AND TOUGHNESS

摘要

A pearlitic rail which consists of a steel containing by mass C: 0.65 to 1.20%, Si: 0.05 to 2.00%, Mn: 0.05 to 2.00%, and REM: 0.0005 to 0.0500% with the balance being Fe and unavoidable impurities, wherein the head surface portion, which lies up to a depth of 10mm from the surface in the head-corner and head-top portions of the rail, has a pearlite structure and exhibits a hardness (Hv) of 320 to 500.