... 3.length:6/9/12m 4.ipe/ipeaa/ipeaaaa i beams weighti beam1.steel gradeQ235,Q345,SS400,SS4902.sizeChinese ... , processing, structure building, automobile manufacturing, shipbuilding, electric powerH&I BEAMS GradeCHEMICAL COMPOSITION %MECHANIC PROPERTYCSiMnPSBYield Strength (N/mm)Tensile Strength ... 180.19~0.230.47~0.490.022~0.0260.021~0.0280.000827541533.5OK6. specification table please check below ...