| abstract |
The invention provides a pipe threaded joint (1) comprising a composition and a lubricious coating layer (21) formed from the composition. The composition according to the present embodiment is a composition for forming a lubricating coating layer (21) on a threaded joint for pipe (1), which comprises Cr 2 O 3 , a metal soap, a wax, and a basic aromatic organic compound. And an acid metal salt. The threaded joint for pipe (1) according to the present embodiment comprises a pin (5) and a box (8). Each of the pin (5) and the box (8) comprises a contact surface with threads (4) and (7) and a non-threaded metal contact. The threaded joint for pipe (1) is provided on at least one of the contact surfaces of the pin (5) and the box (8) with a lubricating coating layer (21) composed of the above composition as the outermost layer. |