The type segmentation of Iron & Steel categorizes products by structural form and alloy composition, each contributing distinct value streams to the market. Flat steel—including plates, sheets, and coils—generates the largest revenue portion, serving automotive panels, building facades, and shipbuilding; its versatility underpins roughly 40 % of total sales. Long steel—bars, rods, beams, and structural sections—accounts for about 30 %, primarily feeding construction frameworks and heavy‑equipment manufacturing. Stainless steel, prized for corrosion resistance, supplies the food‑processing, medical, and architectural niches, representing roughly 15 % of the market. Alloy steel, engineered for enhanced mechanical properties, supports aerospace, defense, and high‑stress machinery, contributing near 10 %. Specialty steel, encompassing tool steels, high‑speed steels, and advanced high‑strength steels, occupies the remaining 5 %, catering to precision tooling and emerging technologies. This type‑based market taxonomy illustrates how product differentiation influences pricing dynamics, capacity allocation, and R&D investment within the Iron & Steel sector.