This report describes the investigation performed at Battelle's Columbus Laboratories and is concerned with residual stresses in welded pipes. Specifically, the goal of this program was to obtain an understanding of the relation between weld parameters and residual stresses for girth welded pipes. The approach used in achieving the program goal was through a combination of laboratory data and the development and verification of a computational model. The tasks developed and verified the computational model for selected weld parameters and welding conditions. The model was then used to evaluate the effect of weld parameters on residual stresses induced from girth welding of pipes.