The finished pipe shape is determined during the manufacturing process and can be optimized by balancing the manufacturing parameters, pipe compression, and expansion. The strength of Corus Tubes’ crimp, U-press, and O-press combinations ensures the pipe size is controlled to the highest degree. The resultant enhanced pipe ‘roundness,’ wall thickness, and diameter tolerance can assure designers of the manufacturing quality of the pipe, removing uncertainty in the design and production stages and allowing the optimization of the pipe wall thickness.