... G3101-2004 Hot rolled Q235 grade H-beam modelgradeprovide capacity(ton)specified lengthexecutive standardHot rolled H-beam steelQ235 Q345ASS400 SS4901700006m-18mGB/T11263 ... ,742*300,700*300692*300,650*300,646*299,606*201,600*200,596*199,594*302,588*300,582*300 ... ,300*305,305*305,300*150298*149,294*200,298*201,250*250,250*255,250*125,248*124,244*175 ... ,148*100,125*125,100*100 HOT rolled Q235 grade H-beam