i beams weight 1.steel grade:Q235,Q345, SS400,SS490 2.size: ... 80-560mm 3.length:6/9/12m 4.ipe/ipeaa/ipeaaaa i ... , processing, structure building, automobile manufacturing, shipbuilding, electric powerH&I BEAMS GradeCHEMICAL COMPOSITION %MECHANIC PROPERTYCSiMnPSBYield Strength (N/mm)Tensile Strength ... 560*166*12.5mm56b 560*168*14.5mm i beams weight