The universal I beam is made up of two horizontal plates, called flanges, joined together by a vertical element, called the web. The web and flanges combine to generate a cross-section with an “I” or “H” shape. I beams are typically composed of structural steel, though they can also be made of other metals such as aluminum, stainless steel, and carbon steel (mild steel).
Customers can choose the web thickness, flange length, and section depth when purchasing steel I beam online in a variety of sizes and specifications. Knowing this is crucial since contractors would order steel beams based on the specifications of the specific project they are working on. When a builder purchases steel online, I beams are divided into several numbers.