... G3101-2004 Hot rolled Q235 grade H-beam modelgradeprovide capacity(ton)specified lengthexecutive standardHot rolled H-beam steelQ235 Q345ASS400 SS4901700006m-18mGB/T11263 ... ,400*408,414*405350*350,350*175,346*174,344*348,340*250,300*300,294*302,300*305,305*305 ... ,148*100,125*125,100*100 HOT rolled Q235 grade H-beam