Abstract: Described in the paper are the main aspects of the Φ460 mm PQF pipe-rolling plant,including the designed capacity,the representative product size range and types,the process flow,and the equipment characteristics and technical data of the piercing mill,the PQF mill proper and the sizing (reducing) mill as well as the process control system and the on-line inspection/measurement QA system. Since the start up of the pipe-rolling plant 6 years ago,lots of innovative modifications have been made in terms of product development,process technique and equipment,which has ensured excellent operation of the plant.