Name of Products:Steel RailSpecification(KGS/M):9kg,12Kg,15Kg,18kg,22Kg,24Kg,30KgMaterials:55Q,50Q,Q235Length: ... 6,8,9,10 Rail SteelDescription Rail profile specification(kg/m)rail heightfoot widthhead widthwaist thickness865542571269.8569.8538.17.541579.3779 ... .10-1.500.0400.040 Steel number C Si Mn S P U71 0.64-0.77 0.13-0.28 ...