Ss400 Q235B S235jr Carbon Structural Steel I Beam 

I-beam steel I-beam steel is a new type of steel for economic construction. The section shape of I-beam is economical and reasonable, and I Beam Steel 's mechanical properties are good.The extension of each point on the section is more uniform and the internal stress is small during rolling.     Product Specification Product Name I Steel Beam Grade Q195, Q215, Q235, Q345, 16Mn, ASTMA36, ASTMA572, SS400, SS490, A36, S235JR, S355JR, ST37, ST52, etc. Standard AISI ASTM BS DIN GB JIS EN  Flange Thickness 4.5-35mm Flange Width 100-1000mm Web Thickness 4.5-70mm…