... rails mine rail , crane rail , train rail , iron rail Standard: BS, DIN, GB, JIS Grade: 55Q, Q235, 45Mn, 50Mn 15kg steel ... /m, 24kg/m, 30kg/m Unit Weight: 12.2kg/m, 15.2kg/m, 18.06kg/m, 22.3kg/m, 24.46kg ... , 88.96kg.m Length: 12m Material: U71Mn Standard: GB3426-82 15-30kg farm and mining steel rails