Oil-well metal pipe

An oil-well metal pipe, comprising:

• a pipe main body including a first end portion and a second end portion;
• wherein:
• the pipe main body includes:
• a pin formed at the first end portion, and
• a box formed at the second end portion;
• the pin includes:
• a pin contact surface including an external thread part;
• and
• the box includes:
• a box contact surface including an internal thread part;
• the oil-well metal pipe further comprising:
• a resin coating formed as an uppermost layer on the pin contact surface and/or on the box contact surface;
• the resin coating containing:
• a base resin of one or more types selected from a group consisting of epoxy resin, phenol resin, acrylic resin, urethane resin, polyester resin, polyamide-imide resin, polyimide resin, and polyether ether ketone resin:
• 40.0 to 99.4 mass % in total,
• nylon:
• 0.1 to 20.0 mass %,
• TiO2:
• 0.5 to 30.0 mass %,
• magnesium silicate hydroxide:
• 0 to 49.4 mass %,
• a wax:
• 0 to 10.0 mass %,
• a fluorine-based additive:
• 0 to 30.0 mass %,
• graphite:
• 0 to 10.0 mass %,
• a rust preventive pigment:
• 0 to 30.0 mass %,
• a coloring pigment:
• 0 to 10.0 mass %, and
• a coupling agent:
• 0 to 10.0 mass %;
• wherein:
• a ratio of a total content in mass % of the wax, the fluorine-based additive and the graphite to a total content in mass % of the nylon, the TiO2 and the magnesium silicate hydroxide in the resin coating is 5.00 or less.