The best way to create UFG is by severe plastic deformation (SPD) and the high-pressure torsion (HPT) is the most simple and effective way among the SPD process. HPT is very effective in producing extremely small grain sizes when compare to other SPD process. The researchers have been studies about the advantage of this forming process such as strength hardness. However, information about the conductivity is still minimal and could not be concluded, therefore its need to research further.