An analysis of the girth weldability of Baosteel X80 UOE （U-ing-O-ing-Expanding） linepipes was conducted using manual shielded metal arc welding （SMAW） and semiautomatic self-shielded flux cored wire arc welding ...An analysis of the girth weldability of Baosteel X80 UOE （U-ing-O-ing-Expanding） linepipes was conducted using manual shielded metal arc welding （SMAW） and semiautomatic self-shielded flux cored wire arc welding （FCAW）. A technical specification for the optimum quality of a girth welding joint was obtained through a large amount of testing. According to the requirements of America Petroleum Institute（API） standard 1104 and the standards of the 2nd West-East natural gas transmission pipeline project,the mechanical properties of a girth welding joint were estimated. In addition,the effect of the girth welding procedure specifications and the consumable＇ s suitability on the impact toughness of the girth welding joint was discussed.展开更多
文摘An analysis of the girth weldability of Baosteel X80 UOE （U-ing-O-ing-Expanding） linepipes was conducted using manual shielded metal arc welding （SMAW） and semiautomatic self-shielded flux cored wire arc welding （FCAW）. A technical specification for the optimum quality of a girth welding joint was obtained through a large amount of testing. According to the requirements of America Petroleum Institute（API） standard 1104 and the standards of the 2nd West-East natural gas transmission pipeline project,the mechanical properties of a girth welding joint were estimated. In addition,the effect of the girth welding procedure specifications and the consumable＇ s suitability on the impact toughness of the girth welding joint was discussed.
