... ,Q345,SS400 ,ASTM A36,S235JR,S355JR etc.2. size:100*50-900*3003.application:used for machinery, procesing, structure building, automobile manufacturing ... , shipbuilding, electric power. etc. H-Beam Steelsizew/m100*50*5*79.54100*100*6*817.2125*60*6*813 ... *305*15*15106338*351*13*13106340*250*9*1479.7............................ 900*300*16*28243 Hot rolled carbon steel bar H beam ...