... G3101-2004 Hot rolled Q235 grade H-beam modelgradeprovide capacity(ton)specified lengthexecutive standardHot rolled H-beam steelQ235 Q345ASS400 SS4901700006m-18mGB/T11263 ... *400,400*408,414*405,400*200,396*199,388*402,394*398,390*300,400*408,414*405350*350,350 ... ,148*100,125*125,100*100 HOT rolled Q235 grade H-beam