... , specific gravity 2.2~2.3, volumetric weight 1.5~1.8 and with high melting point. Fixed carbon: 80-84% ... industries as the fireproof material, electric conducting material, antifriction material, in foundry, during molding, pressing die and high temp metallurgy, and ... with the function to prevent scale from buildup in boilers. 4.In addition, graphite can prevent rusts on metal chimney, building ...