a pressure container comprising axially extending side walls formed of plastic extending between a top end and a bottom end . a metal top is attached at a top seam in pressure - containing relation to the top end of the side walls , and a metal bottom attached at a bottom seam in pressure - containing relation to the bottom end of the side walls . optional top and bottom beads are formed in the side walls to aid in sealingly securing the metal top and bottom to the side walls . a method for containing pressurized materials by providing and filling such a pressure container is also shown .