Abstract: Herein a tubular element (2) is disclosed. The tubular element comprises a first tubular portion (4) comprising a first metal or alloy and a second tubular portion (6) comprising a second metal or alloy. At least a portion of an interface (9) between the first and second tubular portions (4, 6) extends within a fixed diameter range along a longitudinal direction (L) of the tubular element. The second tubular portion (6) comprises a first end portion (8) arranged around the first tubular portion (4). The second tubular portion (6) comprises a sealing surface (10) extending circumferentially around the second tubular portion (6) at the first end portion (8).

Abstract: A martensitic stainless alloy comprising, in percent by weight (wt. %) C >0.50 to 0.60; Si 0.10 to 0.60, Mn 0.40 to 0.80; Cr 13.50 to 14.50; Ni 0 to 1.20; Mo 0.80 to 2.50; N 0.050 to 0.12; Cu 0.10 to 1.50; V max 0.10; S max 0.03; P max 0.03; the balance being Fe an unavoidable impurities.

Abstract: A sensor includes a metal object and a thin film stack formed on at least a part of a surface of the metal object. The thin film stack has an electrically isolating film and a metallic film thereon. A first electrical conductor is defined in the metallic film and is electrically isolated from the metal object and has, in a first end, a connection point connected to a first terminal via a wire and, in a second end, a sensor structure defined in the metallic film. The sensor structure includes a junction of the metallic film penetrating the electrically isolating film to the metal object forming a thermocouple and a metal object terminal connected to a connection point of the metal object via a wire. The connection points of the first electrical conductor and of the metal object are adjacent to and in an isothermal relation with each other.

Abstract: Herein a metallic tube portion is disclosed. The metallic tube portion comprises a connection element. The connection element comprises a protruding portion of a metallic outer tube of the metallic tube portion and a housing member. The housing member is welded to the protruding portion and at least a further portion of the metallic outer tube and/or a portion of a metallic inner tube. A signal line extends at least partially through the connection element.

Abstract: Metallic tube structure comprises a first tubular portion and a sensor structure. A sensor of the sensor structure is configured to detect a physical parameter of the metallic tube structure. The sensor structure is formed as a stack of thin-film layers. The stack comprises at least a first electrically insulating thin-film layer and at least one electrically conducting thin-film layer. The first electrically insulating thin-film layer is in mechanically bonded to the outer surface of the first tubular portion and is arranged to electrically insulate the at least one electrically conducting thin-film layer from the first tubular portion. A portion of the sensor structure is covered by a protective member, the protective member being arranged in direct contact with the at least a portion of the sensor structure and at least a part of the first tubular portion.

Abstract: The present disclosure relates to a duplex stainless steels strip manufactured from a duplex stainless steel, wherein the duplex stainless steel comprises the following composition, in weight %: C less than or equal to 0.02; Si 0.05 to 0.40; Mn 0.5-3.0; Cr 30.0 to 33.0; Ni 5.0-10.0; Mo 2.0-4.0; N 0.40-0.60; Al 0.010-0.035; B 0.0020-0.0030; Ca 0.0006-0.0040; 5 Cu 0-0.60; V0-0.15; W 0-0.05; Co 0-0.60; Ti 0-0.03; Nb 0-0.03; P less than or equal to 0.03; S less than or equal to 0.02; balance Fe and unavoidable impurities; and wherein the duplex stainless steel consists of 30-70 vol % austenite phase and 70-30 vol % ferrite phase; and wherein the strip has alternating layers of ferrite phase and austenite phase, said alternating layers are essentially parallel with the plane of the object and said alternating 10 layers have an average layer thickness less than or equal to about 10 ?m. The present disclosure also relates to a method of producing a strip comprising said duplex stainless steel.

Abstract: Herein a metallic tube portion is disclosed. The metallic tube portion comprises a connection element. The connection element comprises a protruding portion of a metallic outer tube of the metallic tube portion and a housing member. The housing member is welded to the protruding portion and at least a further portion of the metallic outer tube and/or a portion of a metallic inner tube. A signal line extends at least partially through the connection element.

Abstract: Herein a tubular element (2) is disclosed. The tubular element comprises a first tubular portion (4) comprising a first metal or alloy and a second tubular portion (6) comprising a second metal or alloy. At least a portion of an interface (9) between the first and second tubular portions (4, 6) extends within a fixed diameter range along a longitudinal direction (L) of the tubular element. The second tubular portion (6) comprises a first end portion (8) arranged around the first tubular portion (4). The second tubular portion (6) comprises a sealing surface (10) extending circumferentially around the second tubular portion (6) at the first end portion (8).

Abstract: The present disclosure relates to a duplex stainless steels strip manufactured from a duplex stainless steel, wherein the duplex stainless steel comprises the following composition, in weight %: C less than or equal to 0.02; Si 0.05 to 0.40; Mn 0.5-3.0; Cr 30.0 to 33.0; Ni 5.0-10.0; Mo 2.0-4.0; N 0.40-0.60; Al 0.010-0.035; B 0.0020-0.0030; Ca 0.0006-0.0040; 5 Cu 0-0.60; V0-0.15; W 0-0.05; Co 0-0.60; Ti 0-0.03; Nb 0-0.03; P less than or equal to 0.03; S less than or equal to 0.02; balance Fe and unavoidable impurities; and wherein the duplex stainless steel consists of 30-70 vol % austenite phase and 70-30 vol % ferrite phase; and wherein the strip has alternating layers of ferrite phase and austenite phase, said alternating layers are essentially parallel with the plane of the object and said alternating 10 layers have an average layer thickness less than or equal to about 10 ?m. The present disclosure also relates to a method of producing a strip comprising said duplex stainless steel.

Abstract: The invention relates to an austenitic alloy comprising the following elements in weight %: C ?0.03; Si ?1.0; 5 Mn ?1.5; S ?0.03; P ?0.03; Cr 25.0 to 33.0; Ni 42.0 to 52.0; 10 Mo 6.0 to 9.0; N 0.07-0.11; Cu ?0.4; Balance Fe and unavoidable impurities; and characterized in that the austenitic alloy fulfills the following condition: ENi>1.864*ECr?19.92 wherein ECr=[wt % Cr]+[wt % Mo]+1.5*[wt % Si] and ENi=[wt % Ni]+30*[wt % C]+30*[wt % N]+0.5*[wt % Mn]+0.5*[wt % Cu]. The invention also relates to a manufacturing method and an object comprising said alloy. The alloy and objects made thereof have less than 0.3% intermetallic phases after solidification.

Abstract: The present disclosure relates to a martensitic stainless steel suitable for rock drill steel rods. Furthermore, the present disclosure also relates to the use of the martensitic stainless steel and to products manufactured thereof, especially drill rods.

Abstract: Method of producing a tube of duplex stainless steel is disclosed. The steel comprises the following composition, in weight %: C max 0.03, Si max 1.0, Mn max 1.5, P max 0.05, S max 0.03, Cr 24-26, Ni 6-8, Mo 3.0-4.0, N 0.24-0.32. The method comprises steps of: forming a tube of the duplex stainless steel, cold working the tube obtained from the step of forming a tube, and soft annealing the tube after the step of cold working by subjecting the tube to a temperature, T, within a range of 500-750° C. for a time period, t, of 0.5-5 minutes.

Abstract: A nicked cutting rule includes a shank portion having two substantially parallel shank side surfaces extending in a direction of length of the rule separated by a thickness of the shank portion. The nicked cutting rule further includes a V-shaped cutting edge portion defined by two cutting edge portion surfaces that intersect at ends remote from the shank portion to define a cutting edge, the cutting edge portion having portions separated in the direction of length of the rule by a plurality of notches extending inwardly from the cutting edge toward the shank portion. The nicked cutting rule also includes an intermediate portion between and integral with the shank portion and the cutting edge portion, the intermediate portion being thinner than the thickness of the shank portion and including two intermediate portion surfaces extending between the two shank side surfaces and the two cutting edge portion surfaces.