... 560mm 3.length:6/9/12m 4.ipe/ipeaa/ipeaaaa i beam standardi beam1.steel gradeQ235,Q345,SS400,SS4902.sizeChinese ... machinery, processing, structure building, automobile manufacturing, shipbuilding, electric powerH&I BEAMS GradeCHEMICAL COMPOSITION %MECHANIC PROPERTYCSiMnPSBYield Strength (N/mm)Tensile Strength ... 0mm18 180*94*6.5mm20a 200*100*7.0mm20b 200*102*9.0mm22a 220*110*7.5mm22b 220*112*9.5mm25a ...