A steel billet is a primary product obtained by casting molten steel from a steelmaking furnace, and its shape is typically a slab (for producing plates), bloom or billet (for producing sections and wire rods), or tube billet. It is an important semi-finished product in the iron and steel industry, possessing good plasticity and workability. Steel billets can serve as raw materials for downstream processes and are further processed by rolling, forging, drawing, and other methods into finished steel products of various specifications and shapes, such as steel plates, steel pipes, and steel bars. 430 stainless steel is a commonly used ferritic stainless steel, whose main components include iron, approximately 16%–18% chromium, and smaller amounts of manganese, silicon, carbon, and phosphorus. Stainless steel billet is the primary form in the stainless steel manufacturing process and is typically further processed into various stainless steel products.