Steel billets are semi-finished steel products with a solid square cross-section, commonly produced in standard dimensions ranging from 100×100 mm to 150×150 mm or beyond, tailored to meet specific industrial needs. As a crucial intermediate form in the steel production process, they serve as the primary input for manufacturing a diverse range of long steel products such as reinforcing bars (rebar), wire rods, angles, channels, beams, rails, and various other structural and industrial profiles. Primarily produced through continuous casting (CCM) and advanced rolling techniques, steel billets boast a dense, uniform internal structure along with a consistent chemical composition. These precisely controlled production methods endow billets with superior mechanical properties, including high tensile strength, excellent ductility, and dependable impact resistance. The uniform grain structure further enhances their workability, enabling them to endure demanding hot rolling, forging, and shaping processes without cracking or defects. Additionally, steel billets are noted for their excellent surface quality, precise dimensions, and metallurgical stability—qualities critical for fabricating high-precision finished goods. Their low impurity content contributes to improved weldability and minimizes the risk of material failure in demanding applications. Owing to these attributes, steel billets find extensive use across sectors such as construction, infrastructure, automotive, heavy machinery, shipbuilding, and energy, where factors like structural strength, durability, and extended service life are paramount.