Severe Plastic Deformation (SPD) Processes are a usual method for improving mechanical properties and synthesis of Ultra Fine Grained (UFG) and Nano Crystalline (NC) materials. Although many SPD processes have been introduced for different shapes of material during last decades, SPD of tubes has remained less considered. A novel SPD process for tube named "Tube Channel Pressing" (TCP) has been developed for SPD of tubes recently. Studies on characteristics of TCPed materials show that TCP has comparable capabilities in improving mechanical properties and grain refinement comparing to conventional SPD processes. For example, crystallite size of solid solution treated aluminum alloy after impression to equivalent strain of 3.09 through TCP was measured 52 nm which is comparable with amount of 57.5 nm measured for this material subjected to equivalent strain of 3.46 through "Accumulative Roll Bonding"(ARB) and 42 nm for equivalent strain of 2.4 through "Dissimilar Channel Angular Pressing" (DCAP).

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