CN: Can be bent through large angles and back to original shape with no change.
Metals are very difficult to bend back into the exact original shape.
CN: Up to 50 times stronger than high-strength steel.
Kevlar is about 25 times stronger than high-strength steel.
CN: About 1.35 g/cm^3
Kevlar: 1.44 g/cm^3
Carbon fibres: 1.75 g/cm^3
Aluminium: 2.7 g/cm^3
CN: 1000 times higher than pure copper
Pure copper has high conductivity