In the Types dimension, the market is stratified by alloy series, temper designations, and thickness ranges, each influencing the total addressable market. The 6000‑series (Al‑Mg‑Si) alloys, especially 6061‑T6 and 6101‑H111, capture the largest share due to their optimal balance of formability, weldability, and moderate strength, making them suitable for most body‑in‑white components. The 5000‑series (Al‑Mg) alloys, such as 5052‑H321, are preferred for panels requiring superior corrosion resistance, notably in regions with aggressive road‑salt exposure, contributing a notable secondary share. 7000‑series (Al‑Zn‑Mg‑Cu) alloys, exemplified by 7075‑T6, are limited to high‑stress structural reinforcements where maximum tensile strength outweighs formability constraints. Temper selections—H111 for deep‑drawability, H321 for intermediate strength, and T6 for peak hardness—further segment the market, as do thickness brackets (0.5–1.0 mm, 1.0–1.5 mm, >1.5 mm), which align with specific panel geometries and crash‑worthiness standards. These type‑based distinctions collectively shape the market taxonomy and dictate procurement volumes across vehicle platforms.