A cast body for a pipe fitting includes a first body end and a second body end disposed opposite from the first body end. The body defines an axis extending from the first body end to the second body end, an inner body surface defining a fitting bore that extends through the body, and an outer body surface spaced from the inner body surface at a predetermined wall thickness. At a first location on the axis, the inner body surface is a first distance and the outer body surface is a third distance from the axis, and at a second location on the axis that is proximate to the first body end, the inner body surface is a second distance from the axis that is greater than the first distance and the outer body surface is a fourth distance from the axis that is less than the third distance.