Normally, steel rail is devide into light rail ,heavy rail and crane rail 1)Light rails: 6kg/m,9kg/m,12kg/m,15kg/m,18kg/m,22kg/m, 24k/mg, 30kg/m Material: Q235B / 50Q / 55Q Length of each piece: 6m~12m Executive standard: refer to GB11264-89 2)Heavy rails: 38kg/m, 43kg/m, 50kg/m, 60kg/m Material: U71Mn / 50Mn / 44Mn Length of each piece: 12m,12.5m Executive standard: refer to GB2585-2007 3)Crane rails: QU70,QU80,QU100,QU120 Material: U71Mn Length of each piece: 12m,12.5m Executive standard: refer to GB3426-82
