Researches in the Nationalization of X₆₀ (529mm × 8 mm) Line Pipe

The experiment shows that X₆₀ (529 mm × 8 mm) line pipe can be nationalized with the comparison of mechanical performance of welding joints which are formed by the Chinese WX₆₀ line pipe and SCH_-1 down-hill low-hydrogen welding electrode and by the Japanese X₆₀ line pipe and LB_-26VU low-hydrogen welding electrode.