The Type segmentation of the Aluminum Plates market distinguishes four principal metallurgical categories: annealed, tempered, heat‑treated, and extruded/rolled plates. Annealed plates, characterized by their ductility, dominate the low‑to‑mid‑range price tier and account for roughly 40 % of total volume, driven by demand in general fabrication and sheet‑metal forming. Tempered plates, offering enhanced strength through controlled deformation, represent about 25 % of the market and are preferred in structural components where load‑bearing capacity is critical. Heat‑treated plates, which undergo solution‑treating and aging, contribute approximately 20 % and serve high‑performance sectors such as aerospace and high‑speed rail, where fatigue resistance is paramount. The extruded/rolled segment, encompassing plates produced via continuous rolling or extrusion processes, occupies the remaining 15 % and is essential for applications requiring precise thickness tolerances and surface finish, notably in electrical enclosures and precision tooling. Collectively, these type sub‑segments shape the overall market size by aligning material properties with cost‑sensitivity and performance requirements across end‑use industries.