Metal Pipe For Oil Well

Abstract: Provided is a metal pipe for an oil well, the metal pipe comprising a Zn-Ni alloy plating layer having excellent seizure resistance. A metal pipe (1) for an oil well according to the present disclosure comprises a pipe body (10) including a first end part (10A) and a second end part (10B). The pipe body (10) includes a pin (40) formed on the first end part (10A) and a box (50) formed on the second end part (10B). The pin (40) includes a pin contact surface (400) including a male screw part (41). The box (50) includes a box contact surface (500) including a female screw part (51). The metal pipe (1) for an oil well further comprises a Ni plating layer (100) formed on the pin contact surface (400) and/or the box contact surface (500), and a Zn-Ni alloy plating layer (110) formed on the Ni plating layer (100). The deposition amount of the Ni plating layer (100) is larger than or equal to 6.00 g/m 2.

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