The invention concerns a threaded tubular component for drilling or working hydrocarbon wells, said tubular component having at one of its ends (1; 2) a threaded zone (3; 4) produced on its outer or inner peripheral surface depending on whether the threaded end is male or female in type, characterized in that at least a portion of the end (1; 2) is coated with a lubricating dry film (12) the matrix (13) of which comprises at least one migrating sliding agent (9) belonging to the oils or waxes family and principally distributed at the surface of the lubricating dry film (12) such that the coefficient of friction of the film (12) is less than 0.07 at loads of less than 40 N while the coefficient of friction of the film (12) is more than 0.1 at loads of more than 200 N.

The invention concerns a threaded tubular component for drilling or working hydrocarbon wells, said tubular component having at one of its ends (1; 2) a threaded zone (3; 4) produced on its outer or inner peripheral surface depending on whether the threaded end is male or female in type, characterized in that at least a portion of the end (1; 2) is coated with a lubricating dry film (12) the matrix (13) of which comprises at least one migrating sliding agent (9) belonging to the oils or waxes family and principally distributed at the surface of the lubricating dry film (12) such that the coefficient of friction of the film (12) is less than 0.07 at loads of less than 40 N while the coefficient of friction of the film (12) is more than 0.1 at loads of more than 200 N.

Provided is a coated steel sheet having excellent press formability. The coated steel sheet includes a base steel sheet and, on at least one side of the base steel sheet, a film containing organic resin and wax. The organic resin is at least one selected from the group consisting of acrylic resins, epoxy resins, urethane resins, phenolic resins, vinyl acetate resins, and polyester resins. The wax is polyolefin wax having a melting point that is 100 C. or more and 145 C. or less and an average particle size that is 3.0 m or less. The film has a specified distribution of the wax. coating weight of the film per side is 0.3 g/m.sup.2 or more.

Provided is a coated steel sheet having excellent press formability. The coated steel sheet includes a base steel sheet and, on at least one side of the base steel sheet, a film containing organic resin and wax. The organic resin is at least one selected from the group consisting of acrylic resins, epoxy resins, urethane resins, phenolic resins, vinyl acetate resins, and polyester resins. The wax is polyolefin wax having a melting point that is 100 C. or more and 145 C. or less and an average particle size that is 3.0 m or less. The film has a specified distribution of the wax. coating weight of the film per side is 0.3 g/m.sup.2 or more.