Used in steel production to enhance strength and hardness. Activated carbon serves in water and air purification by adsorbing contaminants. Graphite form is used in lubricants, batteries, and as electrodes in industrial processes. Carbon fibers provide lightweight, high-strength materials for aerospace, automotive, and sports equipment. Diamond form is used in cutting, grinding, and drilling tools due to extreme hardness. Carbon black is added to tires and rubber products to improve durability. Also used in ink, pigments, and as a filler in plastics. In electronics, carbon is used in resistors and conductive coatings. Emerging applications include carbon nanotubes and graphene in advanced electronics and composite materials.