This I-beam made of SS400 steel with dimensions of 150 x 75 x 5.5 x 9.5 mm and a length of 6 meters is a lightweight yet fully functional profile for unloaded or lightly loaded structures. The 150 mm height and 75 mm flange width make it noticeably more compact than its larger counterparts, but with proper use it holds what it needs to. The 5.5 mm web thickness and 9.5 mm flange thickness are minimally sufficient for most household and light industrial tasks. SS400 steel remains ductile and welds well even in thin sections. The 6-meter length is the standard that manufacturers and builders work with.
The beam is suitable for projects where larger I-beams would be overkill and only add unnecessary weight. In private construction, it is used for attic floors, roof purlins, and frames for porches, terraces, and gazebos. In garages and workshops, it is used for lifting frames, shelving, winch gantries, and guides for sliding gates. The I-beam is also used in light metal structures: supports for canopies, entrance awnings, frames for advertising structures and billboards. In industry, it is used for crane runways of light-capacity hoists, conveyor galleries, and equipment access platforms.
The main advantage is low weight with sufficient rigidity. Two people can lift and install this beam without a crane, which is critical for small sites and remote locations. It is easy to cut, drill, and weld with ordinary tools. The 150 mm height allows spanning up to 3-4 meters without noticeable deflection. If you need to build a metal structure that won't weigh half a ton yet won't sag — this is one of those I-beams worth looking at first.