Brief Introduction of steel for railway Steel for railway also called the rail track, track rail. Steel for railway as the important part of railway line, it is a integrity of engineering structures, it is composed by steel rail, sleeper, connecting parts(rail accessories). Features of steel for railway 1) Light railway steel rail, material:Q235, 55Q, Type:30kg/m, 24kg/m, 22kg/m, 18kg/m, 15kg/m, 12 kg/m, 8 kg/m; 2)Heavy railway steel rail, material:45MN, U71MN, Type:38kg/m, 43kg/m, 50kg/m; 3)Crane rail, material:U71MN, Type:QU70kg/m , QU80kg/m, QU100kg/m, QU120kg/m.