A hot-rolled T-shaped beam is a structural steel component defined by its T-profile—comprising a horizontal flange and a vertical web—produced through the hot rolling process. This beam is a staple in construction and engineering, valued for its balanced strength, versatility, and cost-effectiveness. The manufacturing process begins with steel billets heated to 1100–1250°C, where the material becomes malleable. These billets pass through a sequence of rolling mills with precision-shaped rolls, gradually transforming the rectangular billet into the T cross-section. Hot rolling not only shapes the beam but also enhances its mechanical properties: high temperatures induce recrystallization, creating a uniform grain structure that boosts ductility, tensile strength, and impact resistance—critical for load-bearing applications. Structurally, the T-beam’s flange provides exceptional resistance to bending moments in the plane of the web, while the web efficiently carries shear forces. Its asymmetric design sets it apart from symmetric I-beams: it excels in scenarios where loads are applied primarily to one side, such as supporting concrete slabs in composite floor systems. Here, the flange bonds with concrete to distribute loads evenly, maximizing structural efficiency. Hot-rolled T-beams find wide use across industries. In bridge construction, they serve as deck beams, often paired with concrete to form composite structures that withstand heavy traffic loads. In buildings, they act as floor joists or support beams in industrial warehouses, commercial complexes, and prefabricated structures. They are also integral to crane girders, marine platforms, and retrofitting projects where space constraints demand compact yet robust components. Typically made from carbon steel grades meeting international standards (e.g., ASTM A36, EN 10025-2 S235JR), these beams offer yield strengths ranging from 235 MPa to 500 MPa. Their high strength-to-weight ratio reduces material usage and construction costs, making them an economical choice for large-scale projects. Key advantages include mass production affordability and ease of fabrication—cutting, welding, and drilling are straightforward due to standardized dimensions. However, design considerations are critical: their asymmetric shape requires careful orientation to avoid weakness under loads perpendicular to the flange. Corrosion protection (e.g., galvanizing, epoxy coatings) is also necessary for exposure to moisture or harsh environments, extending service life. In summary, the hot-rolled T-shaped beam is a foundational element in modern construction, blending structural efficiency, versatility, and cost-effectiveness. Its unique profile and enhanced mechanical properties make it a reliable solution for a diverse range of load-bearing applications, from bridges to industrial buildings.