I-beam

I-beams are widely used in construction or other metal structures. 

Whether the I-beam is ordinary or light, due to the relatively high and narrow section size, the moment of inertia of the two main axes of the section is quite different, so it can only be directly used for bending in the plane of its web. 

member or form it into a lattice-type force-bearing member.

In the structural design, the selection of I-beam should be based on its mechanical properties, chemical properties, weldability, structural size, etc. to select a reasonable I-beam for use. 

I-beams are used in construction and vehicle manufacturing. In construction engineering, the metal columns, beams/roof trusses are mostly made of A3F low carbon steel, but also A5, 16Mn, 15MnV steel. 

Dimensions are height x side width x thickness. For example, A3F100x68.x4.5mm.