Abstract: A segmented pipe-bending die produces curvature across the pipe contacting surface of the die by varying the radii of the semi-circular pipe bending segments, or by offsetting the position of adjacent segments having equal or varying radii semi-circular apertures, laterally, longitudinally, or both. The pipe-bending die is formed from a plurality of metallic segments, which are affixed together. Each metallic segment of the die has a semi-circular pipe contacting surface portion. The radius of a plurality of the semi-circular pipe-contacting surface of each segment differs in length so that the pipe-contacting surface has a predetermined curvature formed by the resultant difference in height of the pipe contacting surface portions of each segment.