... 400, ST37-2 , A36, S235 JRG1, Q235, Q345 etc. 2.Length : 6 meter, 9 meter Mild steel hot rolled I beam A36,SS400 ... ,Q235,ST37-2 I beam steel,hot rolled I beam SS400,mild steel I beam1> Material ... : SS 400, ST37-2 , A36, S235 JRG1, Q235, Q345 etc ...