an allotrope of carbon which is as tensile as steel.

Carbon nanotubes (CNTs), is the allotrope of carbon which is as tensile as steel. Carbon nanotubes were reported to have a tensile strength of approximately 62 GPa. In contrast, high carbon steel (an alloy of iron and carbon) has a tensile strength of approximately 1.2 GPa.

Carbon nanotubes, long thin cylinders of carbon, were discovered in 1991 by Iijima’s. Carbon nanotubes (CNTs) are allotropes of carbon which are members of the fullerene structural family, which also includes the spherical buckyballs. These are large macromolecules which are unique for there size, shape and remarkable physical properties. They have hundred times the tensile strength of steel, very good thermal conductivity and electrical conductivity has the ability to carry much higher currents.