The Graphite Mold for Horizontal Continuous Casting segmentation by application isolates three primary end‑use groups—steel casting, aluminum casting, and other alloy casting. Steel casting dominates the market, accounting for roughly 70 % of total demand, driven by the extensive use of continuous casting in flat‑rolled and long‑product steel mills where graphite molds provide superior thermal conductivity and wear resistance. Aluminum casting, representing about 20 % of the market, is expanding as lightweight alloy adoption rises in automotive and aerospace sectors; the lower melting point of aluminum necessitates molds with tailored porosity and surface finish, creating a distinct cost structure. The residual 10 % comprises niche alloy applications such as copper, nickel and specialty alloys, where production volumes are modest but require customized mold geometries and tighter dimensional tolerances. Collectively, these application categories define the overall market size, with steel’s volume weight offsetting the higher per‑unit price of aluminum and specialty molds, thereby shaping revenue distribution across the segment.