The most important application of explosive welding in cylindrical geometry is cladding of cylindrical surfaces in order to increase corrosion and wear resistance and also improving the mechanical properties of bimetal product. In this study, the explosive welding of bimetal tubes made of steel and Phosphor-Bronze was investigated using two explosives (TNT and Amatol 5-95) with different explosion velocity. At first the explosive window of two metals was achieved using the theoretical-experimental relations, and then using different experiments, the key role of explosion velocity and also the position of selected parameters of explosive window in the metals weldability were determined. At the end, the successfull method of manufacturing of this bimetal tubes is presented and commented upon.