Abstract: A threaded tubular connection for drilling or operating hydrocarbon wells contains a portion of a tubular element with a male end having an axis of revolution and provided with a first threading extending about the axis of revolution, the male end portion being complementary with a portion of a tubular element with a female end having an axis of revolution and provided with a second threading extending about the axis of revolution, the male and female end portions being capable of being connected by makeup, each of the male and female end portions further comprising a sealing surface with a metal-metal interference, wherein the threading and the sealing surfaces of the male and female end portions are coated with a metallic anti-corrosion and anti-galling layer wherein zinc (Zn) is the major element by weight. One of the metallic anti-corrosion and anti-galling layers is coated with a passivation layer and the other is at least partially coated with a lubricant layer.

Abstract: A steel wire has a microstructure that is completely ferritic, a mixture of ferrite and cementite or a mixture of ferrite and pearlite and has a weight content of carbon C such that C<0.05% and a weight content of chromium Cr such that Cr<12%. The process for drawing the wire comprises: at least one first uninterrupted series of steps of drawing the wire from a diameter D to a diameter d?, at least one second uninterrupted series of steps of drawing the wire of diameter d? to a diameter d, and one or more intermediate steps between the first and second uninterrupted series of steps of drawing the wire, the wire having a temperature less than or equal to 300° C. during the or each intermediate step.

Abstract: A motor vehicle tire is reinforced by at least one carbon steel band that has a very low carbon content and high strength in the work-hardened state The carbon steel comprises (% by weight) between 0.05% and 0.4% of carbon, between 0.5% and 4% of manganese, between 0.1% and 2.5% of silicon, optionally (i) less than 1.5% of aluminium, (ii) less than 0.5% of each of the metals boron, chromium, cobalt, copper, molybdenum, nickel, niobium, titanium, tungsten, vanadium, and zirconium, and (iii) less than 0.05% of each of the elements phosphorus, sulfur, nitrogen, or rare earth, and the rest is made up of iron and inevitable impurities resulting from the smelting. The microstructure of the work-hardened carbon steel is mainly martensitic or ferritic-martensitic. The strength, denoted Rm, of the strip is greater than 1200 MPa and its elongation at break, denoted At, is between 1% and 5%.

Abstract: A protector for a male end or a female end of a tubular drilling or production component for hydrocarbon wells, the end respectively including at least one external thread or internal thread, an annular external surface and an annular internal surface separated by the at least one thread, the protector including a first internal or external thread including at least one first threaded portion including at least one thread with pitch P1 configured to cooperate with the thread of the end to screw the protector onto the end, and a second threaded portion including at least one thread with a pitch P2 different from P1.

Abstract: The invention concerns a threaded portion of a tubular element for a threaded tubular connection having an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing surface on the peripheral surface, the first sealing surface being capable of producing metal-metal interference with a corresponding second sealing surface belonging to a complementary threaded portion. The threading and the first sealing surface are coated with a metallic anti-galling layer wherein zinc (Zn) is the major element by weight, the metallic anti-galling layer being at least partially coated with a lubricant layer comprising a resin and a dry solid lubricant powder dispersed in the resin.

Abstract: The tire has a radial carcass reinforcement, the seat diameter of which is less than or equal to 19.5 inches, the carcass reinforcement has metal reinforcing elements which are layered cords that include several steel threads. The steel threads have a weight content of carbon C such that 0.01%?C<0.4%. The at least one carcass reinforcement layer has a breaking force per unit width of between 20 daN/mm and 50 daN/mm, and the diameter of the cords is less than 0.7 mm.

Abstract: The invention concerns a threaded portion of a tubular element for a threaded tubular connection having an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing surface on the peripheral surface, the first sealing surface being capable of producing metal-metal interference with a corresponding second sealing surface belonging to a complementary threaded portion. The threading and the first sealing surface are coated with a metallic anti-galling layer wherein zinc (Zn) is the major element by weight, the metallic anti-galling layer being at least partially coated with a lubricant layer comprising a resin and a dry solid lubricant powder dispersed in the resin.

Abstract: The tire has a radial carcass reinforcement, the seat diameter of which is strictly greater than 19.5 inches. The metal reinforcing elements of the at least one layer of the carcass reinforcement are layered cords which include several steel threads that have a weight content of carbon C such that 0.01%?C<0.4%. The at least one carcass reinforcement layer has a breaking force per unit width of between 35 daN/mm and 75 daN/mm, and the diameter of the cords is greater than 0.7 mm.

Abstract: The tire has a radial carcass reinforcement which includes at least one layer of metal reinforcing elements and a crown reinforcement, which is capped radially with a tread. The metal reinforcing elements of at least one layer of the carcass reinforcement are cords with several steel threads that have a weight content of carbon C such that 0.01%?C<0.4%. The cords exhibit, in the “permeability” test, a flow rate of less than or equal to 20 cm3/min. The thickness of the rubber compound between the inner surface of the tire cavity and the point of a metal reinforcing element of the carcass reinforcement that is closest to the inner surface of the cavity is less than 3.2 mm, and the steel threads have a maximum tensile strength R, expressed in MPa, such that R?175+930.0-600.ln(d) and R?1500 MPa.

Abstract: The tire has a radial carcass reinforcement which includes at least one layer of metal reinforcing elements. The tire also has a crown reinforcement, itself capped radially with a tread. The tread is joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are cords include several steel threads having a weight content of carbon C such that 0.01%?C<0.4%. The cords exhibit, in the “permeability” test, a flow rate which is strictly greater than 20 cm3/min, and the thickness of the rubber compound between the inner surface of the tire cavity and the point of a metal reinforcing element of the carcass reinforcement that is closest to the inner surface of the cavity is less than 3.2 mm.

Abstract: The invention concerns a threaded tubular connection for drilling or operating hydrocarbon wells, comprising a portion of a tubular element with a male end having an axis of revolution and provided with a first threading extending about the axis of revolution, said male end portion being complementary with a portion of a tubular element with a female end having an axis of revolution and provided with a second threading extending about the axis of revolution, said male and female end portions being capable of being connected by makeup, each of the male and female end portions further comprising a sealing surface with a metal-metal interference, wherein the threading and the sealing surface of one of the two, male or female, end portions are coated with a first metallic anti-corrosion and anti-galling layer wherein zinc (Zn) is the major element by weight, said first metallic anti-corrosion and anti-galling layer being coated with a first passivation layer, and the complementary threading and sealing surface of

Abstract: The invention concerns a threaded portion of a tubular element for a threaded tubular connection hiving an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing surface on the peripheral surface, the first sealing surface being capable of producing metal-metal interference with a corresponding second sealing surface belonging to a complementary threaded portion of a tube. The threading and the first sealing surface are coated with a metallic anti-corrosion and anti-galling layer wherein zinc (Zn) is tie major element by weight.

Abstract: The steel wire of diameter d expressed in mm has a completely ferritic, pearlitic or ferritic-pearlitic microstructure and a weight content of carbon C such that 0.05%?C<0.4%, a weight content of chromium Cr such that Cr<12% and a maximum tensile strength R, expressed in MPa, such that R?175+930.C?600.In(d) and R?1500 MPa.

Abstract: A steel wire has a microstructure that is completely ferritic, a mixture of ferrite and cementite or a mixture of ferrite and pearlite and has a weight content of carbon C such that C<0.05% and a weight content of chromium Cr such that Cr<12%. The process for drawing the wire comprises: at least one first uninterrupted series of steps of drawing the wire from a diameter D to a diameter d?, at least one second uninterrupted series of steps of drawing the wire of diameter d? to a diameter d, and one or more intermediate steps between the first and second uninterrupted series of steps of drawing the wire, the wire having a temperature less than or equal to 300° C. during the or each intermediate step.

Abstract: A radial tire includes a crown reinforcement or belt having a lightened belt structure. The lightened belt structure is constructed of a multilayer composite laminate that includes a first layer of rubber that radially surmounts, in a direction Z, two other layers of rubber. The first layer of rubber includes weakly heat-shrinkable textile circumferential reinforcers, for example, made of nylon or polyester. The two other layers of rubber are reinforced with monofilaments of high tensile steel. The first reinforcers have a diameter between 0.40 mm and 0.70 mm and a density between 70 and 130 threads/dm, and the second and third reinforcers have a diameter between 0.20 mm and 0.50 mm and a density between 120 and 180 threads/dm.

Abstract: A radial tire includes a crown reinforcement or belt having a lightened belt structure. The lightened belt structure is constructed of a multilayer composite laminate that includes a first layer of rubber that radially surmounts, in a direction Z, two other layers of rubber. The first layer of rubber is reinforced with first reinforcers, which are circumferential heat-shrinkable polyester textile reinforcers. The two other layers of rubber are reinforced with second and third reinforcers, which are monofilaments of high tensile steel. The first reinforcers have a diameter between 0.40 mm and 0.70 mm and a density between 70 and 130 threads/dm, and the second and third reinforcers have a diameter between 0.20 mm and 0.50 mm and a density between 120 and 180 threads/dm.

Abstract: A process for drawing a steel wire, in which the wire has a carbon content by weight C of 0.4%?C?0.74%, includes an uninterrupted series of drawing steps. The drawing steps draw the wire from a diameter d? to a diameter d, with d? and d being expressed in mm, and with a true strain ?? of the steel wire being given by ??=2×ln(d?/d), with ??>4.

Abstract: A protector for a male end or a female end of a tubular drilling or production component for hydrocarbon wells, the end respectively including at least one external thread or internal thread, an annular external surface and an annular internal surface separated by the at least one thread, the protector including a first internal or external thread including at least one first threaded portion including at least one thread with pitch P1 configured to cooperate with the thread of the end to screw the protector onto the end, and a second threaded portion including at least one thread with a pitch P2 different from P1.

Abstract: The steel wire of diameter d expressed in mm has a completely ferritic, pearlitic or ferritic-pearlitic microstructure and a weight content of carbon C such that 0.05%?C<0.4%, a weight content of chromium Cr such that Cr<12% and a maximum tensile strength R, expressed in MPa, such that R?175+930.C?600.In(d) and R?1500 MPa.

Abstract: The steel wire having a completely ferritic, pearlitic or ferritic-pearlitic microstructure has a weight content of carbon C such that 0.05% C<0.4% and a weight content of chromium Cr such that Cr<12%. The process for drawing the wire comprises: at least one first uninterrupted series of steps (4001-400m) of drawing the wire from a diameter D to a diameter d?, at least one second uninterrupted series of steps (7001-700m) of drawing the wire of diameter d? to a diameter d, one or more intermediate steps between the first and second uninterrupted series of steps (4001-400m, 7001-700m) of drawing the wire, the wire having a temperature less than or equal to 300° C. during the or each intermediate step.