Segmentation by Types classifies hard particle furnace grade carbon black according to particle size, structure, and surface chemistry, each influencing performance and pricing. The primary grades—N330, N550, N660, and N770—are differentiated by average particle diameter (approximately 30–70 nm) and DBP structure number, which dictate reinforcement efficiency and viscosity impact in rubber compounds. N330, with the smallest particle size, offers superior blackness and is favored for high‑performance tire tread, commanding a premium price. N550 and N660 balance reinforcement and processability, making them the preferred choices for industrial rubber applications such as belts and hoses. N770, characterized by larger particles and lower structure, is employed where lower viscosity is essential, such as in certain coatings and plastics. Emerging sub‑types, including surface‑modified grades (e.g., silica‑coated carbon black), address specific functional demands like reduced hysteresis in low‑rolling‑resistance tires. The distribution of these types aligns with application‑driven preferences, shaping the overall market size and growth trajectory.