A welded pipe assembly includes a first and a second metal pipes, and a welded joint or welded material connecting the first pipe with the second pipe. The first and second metal pipes each have a length of at least 30′ and an exterior diameter of less than 24″. The weld material includes a plurality of weld pass layers including a first internal pass layer and a second internal pass layer disposed on top of the first internal pass layer. The second internal pass layer is positioned closer to an interior longitudinal axis of the welded first and second pipes than the first internal pass layer. The welded joint includes a first internal bevel formed in the first metal pipe and a second internal bevel formed in the second metal pipe. The first internal pass layer is disposed in a region defined by the first and the second internal bevels.