Orangeburg Pipe Fittings . The pipe wall wastypically about 3/16 to 1/4 thick. Complies with the material and performance requirements of astm c1173. E.B.I. EXCAVATING CONTRACTORS SEWER LINE repair and REPLACEMENT 775 from excavatingreno.com 1 result for plastic couplings category: Orangeburg would later be replaced by plastics likeabs and pvc, which are superior in longevity. The real issue is the transition coupling.