I beam (1) material: Q235,SS400,A36,ST37-2,EN10025,S235JR ( ... *3.6mm-630*180*17mm (3)packing:bundle with strips I beam(1) material: Q235,SS400,A36,ST37-2,EN10025,S235JR ... -630*180*17mm(3)packing:bundle with stripsGB standard I beamModelh(mm)b(mm)d(mm)Theoretic Weight(kg/m)10100684.511 ... .10856c56017016.5123.963a63017613121.40763b63017815131.29863c63018017141.189 GB standard hot rolled I-beam