Steel billet is a primary product obtained by casting the steel water produced by a converter into various forms, usually including slabs (for flat products), billets (for sections and wire rods), and blooms. It is an essential semi-finished product in the iron and steel industry, characterized by its excellent ductility and processability. Steel billet can be used as raw material for downstream processes, undergoing rolling, forging, drawing, and other manufacturing processes to produce finished steel products of different specifications and shapes, such as steel plates, steel pipes, steel bars, and so on. In sectors like construction, machinery manufacturing, shipbuilding, automobile manufacturing, steel billets are widely used to make various components and structural materials. Stainless steel billet is the primary form in the stainless steel manufacturing process, which is usually further processed into various stainless steel products.