Patents Assigned to Bohler Edelstahl GmbH & Co KG
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Publication number: 20240052469Abstract: A superaustenitic material is provided for use in chemical plant construction or in oilfield or gas field technology. The material resists corrosion, in particular corrosion in mediums with high chloride concentrations and sulfuric acid.Type: ApplicationFiled: December 19, 2019Publication date: February 15, 2024Applicant: voestalpine BÖHLER Edelstahl GmbH & Co KGInventors: Rainer FLUCH, Andreas KEPLINGER
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Publication number: 20230392243Abstract: The present invention relates to a method for producing an article out of a maraging steel, wherein the article is successively subjected to a solution annealing and heat treatment, wherein the steel has the following composition in M-%: C=0.01-0.05 Si=0.4-0.8 Mn=0.1-0.5 Cr=12.0-13.0 Ni=9.5-10.5 Mo=0.5-1.5 Ti=0.5-1.5 Al=0.5-1.5 Cu=0.0-0.05 Residual iron and smelting-induced impurities.Type: ApplicationFiled: December 19, 2018Publication date: December 7, 2023Applicant: voestalpine BOHLER Edelstahl GmbH & Co. KGInventors: Harald Leitner, Klaus Sammt, Horst Zunko
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Publication number: 20230332282Abstract: A superaustenitic material consisting of an alloy with the following components (all values expressed in % by weight): Elements Carbon (C) 0.01-0.25 Silicon (Si)<0.5 Manganese (Mn) 3.0-8.0 Phosphorus (P)<0.05 Sulfur (S)<0.005 Iron (Fe) residual Chromium (Cr) 23.0-30.0 Molybdenum (Mo) 2.0-4.0 Nickel (Ni) 10.0-16.0 Vanadium (V)<0.5 Tungsten (W)<0.5 Copper (Cu)<0.5 Cobalt (Co)<5.0 Titanium (Ti)<0.1 Aluminum (Al)<0.2 Niobium (Nb)<0.1 Boron (B)<0.01 Nitrogen (N) 0.50-0.Type: ApplicationFiled: December 19, 2019Publication date: October 19, 2023Applicant: voestalpine BÖHLER Edelstahl GmbH & Co KGInventors: Rainer FLUCH, Andreas KEPLINGER
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Patent number: 11613790Abstract: The present invention relates to a method for producing an article out of a maraging steel, wherein the article is successively subjected to a solution annealing and heat treatment, wherein the steel has the following composition in weight percent: C=0.01-0.05 Si=0.4-0.8 Mn=0.1-0.5 Cr=12.0-13.0 Ni=9.5-10.5 Mo=0.5-1.5 Ti=0.5-1.5 Al=0.5-1.5 Cu=0.0-0.05 Residual iron and smelting-induced impurities.Type: GrantFiled: December 19, 2018Date of Patent: March 28, 2023Assignee: voestalpine Bohler Edelstahl GmbH & Co. KGInventors: Ronald Schnitzer, Harald Leitner
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Patent number: 11486015Abstract: The invention relates to a method for producing a steel material, particularly a corrosion-resistant steel material for pumps and similar, in which a steel corresponding to the following analysis (in wt. %) is smelted: C<0.050; Si<0.70; Mn<1.00; P<0.030; S<0.010; Cr=14-15.50; Mo=0.30-0.60; Ni=4.50-5.50; V<0.20; W<0.20; Cu=2.50-4.00; Co<0.30; Ti<0.05; Al<0.05; Nb<0.05; Ta<0.05; N<0.05.Type: GrantFiled: May 11, 2017Date of Patent: November 1, 2022Assignee: VOESTALPINE BÖHLER EDELSTAHL GMBH & CO. KGInventors: Jochen Perko, Michael Haspel, Patric Schütz
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Publication number: 20220145436Abstract: A superaustenitic material is provided for use in chemical plant construction, maritime conditions, oilfield or gas field technology. The material resists corrosion, in particular corrosion in mediums with high chloride concentrations or in sulfuric acid conditions.Type: ApplicationFiled: December 19, 2019Publication date: May 12, 2022Applicants: voestalpine BÖHLER Edelstahl GmbH & Co KG, VOESTALPINE BÖHLER BLECHE GMBH & Co KGInventors: Rainer FLUCH, Andreas KEPLINGER, Clemens VICHYTIL
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Publication number: 20220033924Abstract: A drill string component, in particular a drilling collar component, an MWD component, or an LWD component for use in oilfield technology and particularly in deep drilling, is provided. A method of making a drill string component, and a steel alloy useful in making a drill string component, are also provided.Type: ApplicationFiled: December 19, 2019Publication date: February 3, 2022Applicants: voestalpine BÖHLER Edelstahl GmbH & Co KG, Schoeller-Bleckmann Oilfield TechnologyInventors: Rainer FLUCH, Andreas KEPLINGER, Martin WÖLS, Bernd HOLPER, Walter SPRUZINA
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Patent number: 6773662Abstract: A hot-working steel article, e.g., tool, comprising a material which comprises, in % by weight, 0.451 to 0.598 C, 0.11 to 0.29 Si, 0.11 to 0.39 Mn, 4.2 to 4.98 Cr, 2.81 to 3.29 Mo, 0.41 to 0.69 V, with the balance iron, contaminants and accompanying elements, as well as an alloy and a process for making said article.Type: GrantFiled: October 2, 2002Date of Patent: August 10, 2004Assignee: Böhler Edelstahl GmbH & Co KGInventors: Kay Fisher, Herbert Schweiger
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Publication number: 20040031354Abstract: A metal powder produced by a process which comprises directing at least three successive gas beams at a molten metal stream inside an atomization chamber, the at least three gas beams being oriented in different directions. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.Type: ApplicationFiled: August 14, 2003Publication date: February 19, 2004Applicant: Bohler Edelstahl GmbH & Co. KGInventor: Claes Tornberg
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Patent number: 6632394Abstract: Process and a device for producing metal powders from molten metal. The process includes directing at least three successive gas beams at a molten metal stream inside an atomization chamber, the at least three gas beams being oriented in different directions. The device includes a metallurgical vessel for holding molten metal provided with a nozzle element for discharging a molten metal stream into an atomization chamber as well as at least three gas nozzle elements for providing at least three gas beams of different orientation and directed at different points of the molten metal stream inside the atomization chamber.Type: GrantFiled: July 23, 2001Date of Patent: October 14, 2003Assignee: Bohler Edelstahl GmbH & Co. KGInventor: Claes Tornberg
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Publication number: 20030136482Abstract: A material for the manufacture of parts and tools for use at elevated temperature, comprising an iron-based alloy comprising C, Si, Mn, Cr, Ni and N in certain concentrations and being cold formed to a hardness of at least 230 HB, a process for the manufacture of the material and a hot working tool comprising the material. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.Type: ApplicationFiled: January 22, 2003Publication date: July 24, 2003Applicant: Bohler Edelstahl Gmbh & Co KGInventors: Gottfried Mayerbock, Johann Sammer, Gabriele Saller
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Publication number: 20030098097Abstract: A hot-working steel article, e.g., tool, comprising a material which comprises, in % by weight, 0.451 to 0.598 C, 0.11 to 0.29 Si, 0.11 to 0.39 Mn, 4.2 to 4.98 Cr, 2.81 to 3.29 Mo, 0.41 to 0.69 V, with the balance iron, contaminants and accompanying elements, as well as an alloy and a process for making said article.Type: ApplicationFiled: October 2, 2002Publication date: May 29, 2003Applicant: Bohler Edelstahl GmbH & Co. KGInventors: Kay Fisher, Herbert Schweiger
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Patent number: 6454879Abstract: An austenitic, paramagnetic and corrosion-resistant material, particularly in media with high chloride concentrations, the material having high strength, yield strength, and ductility, including carbon, silicon, chromium, manganese, nitrogen, and optionally, nickel, molybdenum, copper, boron, and carbide-forming elements. The material is preferably substantially completely austenitic. A process utilizing alloying technology that includes a deformation and synergistically results in production of a ferrite-free material that is reliably paramagnetic, is corrosion-resistant, and has high yield strength, strength, and ductility. The material can be very beneficially used, for example, in connection with oil field technology, such as for bore rods and drilling string components as well as for precision-forged components, and for high strength attachment and connection elements.Type: GrantFiled: July 14, 2000Date of Patent: September 24, 2002Assignees: Schoeller-Bleckman Oilfield Technology GmbH & Co. KG, Bohler Edelstahl GmbH & Co. KGInventors: Herbert Aigner, Günter Hochörtler, Josef Bernauer
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Publication number: 20020104213Abstract: Process for manufacturing cylindrical hollow bodies with a circular cross-section using solid rough material of corrosion-resistant, martensitic chromium steels. A remelting block is produced and a tube blank is made therefrom, the tube blank being formed into a tube at hot forming temperature by extrusion at a deformation ratio of at least 6. Hollow bodies are cut from the resultant tube.Type: ApplicationFiled: October 24, 2001Publication date: August 8, 2002Applicant: BOHLER EDELSTAHL GmbH & Co., KG.Inventors: Reinhold Schneider, Gerhard Lichtenegger, Gunter Schirninger
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Patent number: 6405512Abstract: Apparatus and process for manufacturing metal powder from a molten mass. The process occurs in an apparatus that includes at least one metallurgical vessel adapted to at least one of treat and prepare a batch of the molten mass, and an atomizing chamber including a nozzle part adapted to sputter a portion of the molten mass, a feed side coupled to the metallurgical vessel, and a discharge side. The atomizing chamber has a longitudinal axis arranged inclined downwardly from the feed side to the discharge side. The apparatus also includes a separator adapted for classifying the metal powder, and an encapsulating facility including at least one container. The metal powder is to be inserted and enclosed within the at least one container. A conveyance unit for powder transport includes an ascending pipe oriented to guide the metal powder upwardly.Type: GrantFiled: December 8, 1999Date of Patent: June 18, 2002Assignee: Böhler Edelstahl GmbH & Co. KGInventor: Claes Tornberg
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Patent number: 6334884Abstract: Process and a device for producing metal powders from molten metal. The process includes the provision of molten metal in a metallurgical vessel having a nozzle element, the nozzle element being directed into an atomization chamber associated with the metallurgical vessel. The molten metal is allowed to flow through the nozzle element of the metallurgical vessel into the atomization chamber whereby a molten metal stream is fed into the atomization chamber. At least three successive gas beams are directed at the molten metal stream inside the atomization chamber, the at least three gas beams being oriented in different directions. Thereby the molten metal stream is broken down into droplets which subsequently freeze into grains that are collected.Type: GrantFiled: January 18, 2000Date of Patent: January 1, 2002Assignee: Bohler Edelstahl GmbH & Co KGInventor: Claes Tornberg
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Publication number: 20010054784Abstract: Process and a device for producing metal powders from molten metal. The process includes directing at least three successive gas beams at a molten metal stream inside an atomization chamber, the at least three gas beams being oriented in different directions. The device includes a metallurgical vessel for holding molten metal provided with a nozzle element for discharging a molten metal stream into an atomization chamber as well as at least three gas nozzle elements for providing at least three gas beams of different orientation and directed at different points of the molten metal stream inside the atomization chamber.Type: ApplicationFiled: July 23, 2001Publication date: December 27, 2001Applicant: BOHLER EDELSTAHL GmbH & Co. KGInventor: Claes Tornberg