Nowadays using high strengh steels is a very important part of material technology. But we need powerfull machines to form theese parts. The big sizeses of theese machines is a must to give high energy for the work. We can simplify the process with explosion. During the material transform increasing the pressure what we can use for material forming. We can make also seamless tubes with special forms at determinated diameters. Our work was to form the tube with explosion and make some material research.