RACCORD FILETÉ POUR TUYAU ET PROCÉDÉ DE FABRICATION D'UN RACCORD FILETÉ POUR TUYAU

摘要

There is provided a threaded connection for pipe having an excellent galling resistance and an excellent appearance. A threaded connection for pipe according to the present embodiment includes a pin (3) and a box (4). The pin (3) and the box (4) have contact surfaces (34) and (44) that include thread parts (31) and (41), metal seal parts (32) and (42), and shoulder parts (33) and (43), respectively. The threaded connection for pipe includes a Zn-Ni alloy plating layer (100) on the contact surface (34) or (44) of at least one of the pin (3) and the box (4). The Zn-Ni alloy plating layer (100) contains Cu. The Cu content of the Zn-Ni alloy plating layer (100) is 4.5% by mass or less (zero excluded).