| abstract |
The present invention provides a threaded joint for pipes that has excellent misalignment resistance, high torque-on-shoulder resistance, and excellent corrosion resistance, and a method for producing the same. This threaded joint for pipes comprises a pin (13) and a box (14). The pin (13) and the box (14) each have a threaded part (15, 20) and a contact surface (130, 140) including a non-threaded metal contact part. The threaded joint for pipes comprises, on the contact surface (130, 140) of the pin (13) and/or the box (14), a surface roughness, a Zn-Ni alloy plating layer (21), a Cu-Sn-Zn alloy plating layer (22), and a solid lubricating film layer (23). These are layered in the order of the surface roughness, the Zn-Ni alloy plating layer (21), the Cu-Sn-Zn alloy plating layer (22), and the solid lubricating film layer (23) from the contact surface (130, 140) side. |