Length: 6 meters or 12 meters SpecificationDepth*flange width* web thickness (mm)TheoreticalWeight (kg/m)QualityLength100 x 68 x 4.511.261Q2356/12m120 x 74 x 5.013.987Q235140 x 80 x 5.516.890Q235160 x 88 x 6.020.513Q235180 x 94 x 6.524.143Q235200 x 100 x 7.027.929Q235280 x 122 x 8.5a43.492Q2356/12m280 x 124 x 10.5b47.888Q235300 x 126 x 9.0a48.084Q235300 x 128 x 11.0b52.794Q235300 x 130 x 12.0t64. ...