Structural steel beams are long, heavy beams that are used in construction to provide support and stability to buildings and other structures. They are typically made of carbon steel and are manufactured using a hot-rolling process to create the desired shape and size. Structural steel beams are used in a wide range of construction projects, including bridges, buildings, and industrial facilities.

These beams have high strength-to-weight ratio, which means they can support a significant load while being relatively lightweight. They also have a high resistance to bending and twisting. The most common shapes for steel beams are I-beam and H-beam and are used for a variety of purposes such as for load bearing and for steel frame structures. They are also relatively easy to fabricate and install, which can make them a cost-effective choice for construction projects.