Dec 11, 2018 · Tungsten carbide grinding ball; Other Names: Tungsten carbide pellet, tungsten carbide sphere, tungsten carbide bead, tungsten carbide grinding media, tungsten carbide satellites: Material: Tungsten carbide, hard metal, hard alloy, tungsten steel: Composition: Tungsten carbide – TC: 91.8%, Cobalt – Co: 8.0%, Other: 0.2%: Density: 14.6 g/cm3: Hardness: HRA90