Nickel Containing Patents (Class 420/108)
  • Patent number: 9638451
    Abstract: A clad metal ice forming tray assembly for a refrigerator is disclosed. The ice forming tray includes a clad metal comprised of at least a first alloy sheet and a second alloy sheet different from the first and having different coefficients of thermal expansion. The tray also includes ice recesses stamped in the clad bi-metal.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: May 2, 2017
    Assignee: Whirlpool Corporation
    Inventor: Charles R. Cravens
  • Patent number: 9533352
    Abstract: A process for preparing intermetallic nanoparticles of two or more metals is provided. In particular, the process includes the steps: a) dispersing nanoparticles of a first metal in a solvent to prepare a first metal solution, b) forming a reaction mixture with the first metal solution and a reducing agent, c) heating the reaction mixture to a reaction temperature; and d) adding a second metal solution containing a salt of a second metal to the reaction mixture. During this process, intermetallic nanoparticles, which contain a compound with the first and second metals are formed. The intermetallic nanoparticles with uniform size and a narrow size distribution is also provided. An electrochemical device such as a battery with the intermetallic nanoparticles is also provided.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: January 3, 2017
    Assignee: UChicago Argonne, LLC
    Inventors: Dileep Singh, Yusuf Yusufoglu, Elena Timofeeva, Jules L. Routbort
  • Publication number: 20150144233
    Abstract: Provided is a mold steel for plastic injection that is excellent in fatigue strength and tensile strength and available for long term use, where the mold steel includes: 0.15 to 0.40 wt. % of carbon (C), 0.15 to 0.50 wt. % of silicon (Si), 0.70 to 1.50 wt. % of manganese (Mn), 0.50 to 1.20 wt. % of nickel (Ni), 1.50 to 2.50 wt. % of chrome (Cr), 0.25 to 0.70 wt. % of molybdenum (Mo), 0.20 wt. % or less of vanadium (V), 0.010 wt. % or less of boron (B), and a trace of iron (Fe) and a plurality of impurities.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Applicant: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
    Inventors: Young Chul PARK, Soo Mok LEE, Myeong Su JANG, Jei Yeong JEON
  • Patent number: 9005520
    Abstract: The invention concerns steels having excellent resistance over time, in a corrosive atmosphere due to oxidizing environments such as, for example, fumes or water vapor, under high pressure and/or temperature. The invention concerns a steel composition for special applications, said composition containing, by weight, about 1.8 to 11% of chromium (and preferably between about 2.3 and 10% of chromium), less than 1% of silicon, and between 0.20 and 0.45% of manganese. It has been found that it is possible to adjust the contents of the composition based on a predetermined model, selected to obtain substantially optimal properties with respect to corrosion in specific conditions of high temperature performances. Said model can involve as additive of as residue at least one element selected among molybdenum, tungsten, cobalt, and nickel.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: April 14, 2015
    Assignees: V & M France
    Inventors: Jean Leyer, Bruno Vandenberghe, Viviane Lepingle, Ghislain Louis, Annie Fouquet, Catheline Petelot, Emilie Petelot, Adeline Petelot
  • Patent number: 8956470
    Abstract: A steel (known as super bainite steel) containing between 90% and 50% bainite, the rest being austenite, in which excess carbon remains within the bainitic ferrite at a concentration beyond that consistent with equilibrium; there is also partial partitioning of carbon into the residual austenite. In one embodiment of the disclosure, the steel contains in weight percent: carbon 0.6 to 1.1%, silicon 1.5 to 2.0%, manganese 0.5 to 1.8, nickel up to 3%, chromium 1.0 to 1.5, molybdenum 0.2 to 0.5%, vanadium 0.1 to 0.2%, balance iron save for incidental impurities. Excellent properties are obtained if the manganese content is about 1% by weight.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: February 17, 2015
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Harshad Kumar Dharamshi Hansraj Bhadeshia, Carlos Garcia-Mateo, Peter Brown
  • Patent number: 8932415
    Abstract: Provided is a welding metal in which a predetermined chemical component composition is satisfied, the A value as specified by formula (1) is 3.8% to 9.0%, and the surface area percentage of carbide having a circle-equivalent diameter of 0.20 ?m or greater in the welding metal is 4.0% or less. A value=0.8×[C]?0.05×[Si]+0.5×[Mn]+0.5×[Cu]+[Ni]?0.5×[Mo]+0.2×[Cr]??(1) (Provided that [C], [Si], [Mn], [Cu], [Ni], [Mo] and [Cr] are the C, Si, Mn, Cu, Ni, Mo and Cr content (by mass percent), respectively) The welding metal is useful as a material for a pressure vessel of a nuclear power plant as the welding metal is high in strength and has good low-temperature toughness and drop-weight characteristics.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: January 13, 2015
    Assignee: Kobe Steel, Ltd.
    Inventors: Hidenori Nako, Yoshitomi Okazaki, Ken Yamashita, Minoru Otsu, Hideaki Takauchi
  • Publication number: 20150004051
    Abstract: A high strength spring steel suppresses ferrite decarburization in a surface layer of a predetermined wire rod manufactured by hot rolling therefrom and possesses excellent decarburization resistance, as compared to conventional high strength spring steel, by optimizing the amount of C, Si, Mn, Cr, Mo and Sb to be added. The spring steel contains, under a certain relationship: 0.35 mass %?C?0.45 mass %; 1.75 mass %?Si?2.40 mass %; 0.1 mass %?Mn?1.0 mass %; 0.01 mass %?Cr<0.50 mass %; 0.01 mass %?Mo?1.00 mass %; P?0.025 mass %; S?0.025 mass %; and O?0.0015 mass %; and at least one selected from 0.035 mass %?Sb?0.12 mass % and 0.035 mass %?Sn?0.20 mass %.
    Type: Application
    Filed: February 14, 2013
    Publication date: January 1, 2015
    Inventors: Minoru Honjo, Kiyoshi Uwai, Shinji Mitao
  • Patent number: 8871040
    Abstract: The invention relates to an air hardenable high-hardness steel for armoring applications, such as armor plate for use in light armored vehicles and body armor, and having a high level of ballistic performance relative to its plate thickness. In particular, the invention concerns a high ballistic strength martensitic armor steel which, in an air cooled and untempered condition, has a strength coefficient (s0) of higher than 2500 MPa; a flow parameter (P) of higher than 8.0, preferably higher than 18.0; and a manganese content of 1.8 to 3.6% by weight of manganese, preferably 2.8 to 3.1% by weight of manganese. The armor steel also includes retained austenite at a volume fraction of at least 1%, and preferably a volume fraction of 4 to 20%.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: October 28, 2014
    Assignee: Damascus Armour Development (Pty) Ltd.
    Inventors: Deon Francoise Du Plessis, Jacob Johannes Wessels, Percy Phillip Adams, Roelof Johannes Mostert, Waldo Edmund Stumpf
  • Patent number: 8801872
    Abstract: A case hardened gear steel having enhanced core fracture toughness includes by weight percent about 16.3Co, 7.5Ni, 3.5Cr, 1.75Mo, 0.2W, 0.11C, 0.03Ti, and 0.02V and the balance Fe, characterized as a predominantly lath martensitic microstructure essentially free of topologically close-packed (TCP) phases and carburized to include fine M2C carbides to provide a case hardness of at least about 62 HRC and a core toughness of at least about 50 ksi?in.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: August 12, 2014
    Assignee: QuesTek Innovations, LLC
    Inventors: James A. Wright, Jason Sebastian
  • Patent number: 8765269
    Abstract: An APIX100-grade high strength steel pipe includes a base material containing, in mass percentage, C: more than 0.03% and 0.08% or less, Si: 0.01% to 0.5%, Mn: 1.5% to 3.0%, P: 0.015% or less, S: 0.005% or less, Al: 0.01% to 0.08%, Nb: 0.005% to 0.025%, Ti: 0.005% to 0.025%, N: 0.001% to 0.010%, O: 0.005% or less, and B: 0.0003% to 0.0020%, further contains one or more of Cu, Ni, Cr, Mo, and V, satisfies 0.19?Pcm?0.25, the balance being Fe and unavoidable impurities, and has a TS of 760 to 930 MPa, a uniform elongation of 5% or more, and a YR of 85% or less; the seam weld metal has a specific composition.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: July 1, 2014
    Assignee: JFE Steel Corporation
    Inventors: Junji Shimamura, Nobuyuki Ishikawa, Mitsuhiro Okatsu, Nobuo Shikanai
  • Publication number: 20140178243
    Abstract: A hot work tool steel family with exceptional thermal difusivity, toughness (both fracture toughness and notch sensitivity resilience CVN—charpy V-notch) and trough hardenability has been developed. Mechanical resistance and yield strength at room and high temperatures (above 600° C.) are also high, because the tool steels of the present invention present a high alloying level despite the high thermal conductivity. Given the exceptional resistance to thermal fatigue and thermal shock, wear resistance can be severely increased for many applications requiring simultaneously resistance to thermal cracking and wear like is the case for some forging and some parts of die casting dies.
    Type: Application
    Filed: March 3, 2014
    Publication date: June 26, 2014
    Applicant: ROVALMA, S.A.
    Inventor: Isaac Valls Anglés
  • Patent number: 8663550
    Abstract: A hot work tool steel family with exceptional thermal diffusivity, toughness (both fracture toughness and notch sensitivity resilience CVN—charpy V-notch) and trough hardenability has been developed. Mechanical resistance and yield strength at room and high temperatures (above 600° C.) are also high, because the tool steels of the present invention present a high alloying level despite the high thermal conductivity. Given the exceptional resistance to thermal fatigue and thermal shock, wear resistance can be severely increased for many applications requiring simultaneously resistance to thermal cracking and wear like is the case for some forging and some parts of die casting dies.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: March 4, 2014
    Assignee: Rovalma, S.A.
    Inventor: Isaac Valls Anglés
  • Patent number: 8657972
    Abstract: A bainitic steel with simultaneous high yield strength and high fracture toughness includes at least 5 volume percent austenite as well as iron, carbon, and silicon. The silicon is present in an amount of at least 1.5 weight percent of total weight of the bainitic steel. A method of forming the steel by austempering is also provided.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: February 25, 2014
    Assignee: Wayne State University
    Inventor: Susil K. Putatunda
  • Publication number: 20140023551
    Abstract: A tool steel, in particular a hot-work steel, has the following composition: 0.26 to 0.55% by weight C; less than 2% by weight Cr; 0 to 10% by weight Mo; 0 to 15% by weight W; wherein the W and Mo contents in total amount to 1.8 to 15% by weight; carbide-forming elements Ti, Zr, Hf, Nb, Ta forming a content of from 0 to 3% by weight individually or in total; 0 to 4% by weight V; 0 to 6% by weight Co; 0 to 1.6% by weight Si; 0 to 2% by weight Mn; 0 to 2.99% by weight Ni; 0 to 1% by weight S; remainder: iron and inevitable impurities. The hot-work steel has a significantly higher thermal conductivity than known tool steels.
    Type: Application
    Filed: September 26, 2013
    Publication date: January 23, 2014
    Inventor: Isaac Valls Angles
  • Publication number: 20140003752
    Abstract: Steel for a high temperature joining process suitable, in particular for components intended for applications with high demands on fatigue and toughness properties, such as bearing components, comprising the following composition in weight-%: 0.5-0.8 C, 0- 0.15 Si, 0-1.0 Mn, 0.01-2.0 Cr, 0.01-1.0 Mo, 0.01-2.0 Ni, 0.01-1.0 of V or 0.01-1.0 of Nb, or 0.01-1.0 of both V and Nb, 0-0.002 S, 0-0.010 P, 0-0.15 Cu, 0.010-1.0 Al, the remainder being Fe and normally occurring impurities.
    Type: Application
    Filed: December 6, 2011
    Publication date: January 2, 2014
    Inventor: Thore Lund
  • Publication number: 20130330119
    Abstract: A forged steel for components for nuclear power plants meets a specific chemical composition. The grain size number of a metal structure thereof is 4.5 to 7.0 in terms of ASTM grain size number. It is preferred that the content of N is 0.0100 mass % or more when the mass ratio (Al/N) of the content of Al to the content of N is 1.93 or more, and that the content of Al is 0.022 mass % or more when the mass ratio (Al/N) of the content of Al to the content of N is less than 1.93. The forged steel for components for nuclear power plants exhibits excellent strength, toughness and hydrogen cracking resistance even after being subjected to a stress relief heat treatment subsequent to welding.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 12, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroyuki Takaoka, Nobuyuki Fujitsuna
  • Publication number: 20130315661
    Abstract: This weld metal has a predetermined chemical composition, controls the number of oxides in accordance with size, and has an A value stipulated by the belowmentioned formula of no greater than 5.0. A value=(100×[C]?6×[insol.Cr]?2×[insol.Mo]?24×[insol.V]?13×[insol.Nb])×([Mo]?[insol.Mo]), where [insol.Cr], [insol.Mo], [insol.Nb], and [insol.V] are contents (in mass percent) of Cr, Mo, Nb, and V, respectively, present as a compound after stress-relief heat treatment, and [C] and [Mo] are contents (in mass percent) of C and Mo, respectively, contained in the weld metal.
    Type: Application
    Filed: March 5, 2012
    Publication date: November 28, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel,Ltd.)
    Inventors: Hidenori Nako, Ken Yamashita, Minoru Otsu, Genichi Taniguchi, Mikihiro Sakata
  • Publication number: 20130309003
    Abstract: This weld metal has excellent creep characteristics and has a given chemical composition. In the weld metal, the value A defined by equation (1) is 200 or greater, and carbide particles each having an equivalent-circle diameter of 0.40 ?m or more have an average equivalent-circle diameter less than 0.85 ?m. In the segments that connect the centers of three or more carbide particles which are present on a 6-?m straight line and which each has an equivalent-circle diameter of 0.40 ?m or more, the sum of the lengths of the portions where the segments intersect the carbide particles is 25% or more of the overall length of the segments. Value A=([V]/51+[Nb]/93)/{[V]×([Cr]/5+[Mo]/2)}×104??(1) In the equation, [V], [Nb], [Cr], and [Mo] respectively indicate the contents (mass %) of V, Nb, Cr, and Mo in the weld metal.
    Type: Application
    Filed: February 9, 2012
    Publication date: November 21, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hidenori Nako, Ken Yamashita, Minoru Otsu, Mikihiro Sakata, Genichi Taniguchi
  • Publication number: 20130224065
    Abstract: Provided is bearing steel excellent in workability after spheroidizing-annealing and in hydrogen fatigue resistance property after quenching and tempering. The bearing steel has a chemical composition containing, by mass %: 0.85% to 1.10% C; 0.30% to 0.80% Si; 0.90% to 2.00% Mn; 0.025% or less P; 0.02% or less S; 0.05% or less Al; 1.8% to 2.5% Cr; 0.15% to 0.4% Mo; 0.0080% or less N; and 0.0020% or less O, which further contains more than 0.0015% to 0.0050% or less Sb, with the balance being Fe and incidental impurities, to thereby effectively suppress the generation of WEA even in environment where hydrogen penetrates into the steel, so as to improve the roiling contact fatigue life and also the workability such as cuttability and forgeability of the material.
    Type: Application
    Filed: November 29, 2011
    Publication date: August 29, 2013
    Applicant: JFE STEEL CORPORATION
    Inventors: Yasumasa Hirai, Kiyoshi Uwai
  • Patent number: 8444776
    Abstract: An aspect of the present disclosure is directed to low-alloy steels exhibiting high hardness and an advantageous level of multi-hit ballistic resistance with low or no crack propagation imparting a level of ballistic performance suitable for military armor applications. Various embodiments of the steels according to the present disclosure have hardness in excess of 550 BHN and demonstrate a high level of ballistic penetration resistance relative to conventional military specifications.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: May 21, 2013
    Assignee: ATI Properties, Inc.
    Inventors: Ronald E. Bailey, Thomas R. Parayil, Glenn J. Swiatek
  • Publication number: 20120321504
    Abstract: An air hardenable steel alloy is disclosed comprising, in percent by weight: 0.18 to 0.26 carbon; 3.50 to 4.00 nickel; 1.60 to 2.00 chromium; 0 to 0.50 molybdenum; 0.80 to 1.20 manganese; 0.25 to 0.45 silicon; 0 to less than 0.005 titanium; 0 to less than 0.020 phosphorus; 0 up to 0.005 boron; 0 up to 0.003 sulfur; iron; and impurities. The air hardenable steel alloy has a Brinell hardness in a range of 352 HBW to 460 HBW. The air hardenable steel alloy combines high strength, medium hardness and toughness, as compared with certain know air hardenable steel alloys, and finds application in, for example, any of a steel armor, a blast-protective hull, a blast-protective V-shaped hull, a blast-protective vehicle underbelly, and a blast-protective enclosure.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 20, 2012
    Inventors: Njall Stefansson, Bradley Hasek, Ronald E. Bailey, Thomas Parayil, Andrew Nichols
  • Publication number: 20120294752
    Abstract: Provided is a welding metal in which a predetermined chemical component composition is satisfied, the A value as specified by formula (1) is 3.8% to 9.0%, and the surface area percentage of carbide having a circle-equivalent diameter of 0.20 ?m or greater in the welding metal is 4.0% or less. A value=0.8×[C]?0.05×[Si]+0.5×[Mn]+0.5×[Cu]+[Ni]?0.5×[Mo]+0.2×[Cr]??(1) (Provided that [C], [Si], [Mn], [Cu], [Ni], [Mo] and [Cr] are the C, Si, Mn, Cu, Ni, Mo and Cr content (by mass percent), respectively) The welding metal is useful as a material for a pressure vessel of a nuclear power plant as the welding metal is high in strength and has good low-temperature toughness and drop-weight characteristics.
    Type: Application
    Filed: January 24, 2011
    Publication date: November 22, 2012
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hidenori Nako, Yoshitomi Okazaki, Ken Yamashita, Minoru Otsu, Hideaki Takauchi
  • Patent number: 8241559
    Abstract: The invention relates to a steel material having a high silicon content, and to a method for the production thereof, the steel material being particularly suitable for piston rings and cylinder sleeves. In addition to iron and production-related impurities, the steel material contains 0.5 to 1.2 wt. % carbon, 3.0 to 15.0 wt. % silicon and 0.5 to 4.5 wt. % nickel. Also, the steel material can contain small amounts of the following elements Mo, Mn, Al, Co Nb, Ti, V, Sn, Mg, B, Te Ta La, Bi, Zr, Sb, Ca, Sr, Cer, rare earth metals and nucleating agents such as NiMg, MiSiMg, FeMg and FeSIMg. due to the high Si content, a degree of saturation higher than 1.0 is attained, with the melting temperature of the steel material corresponding to normal cast iron. The steel material can be produced according to a conventional cast-iron technique and has a high resistance to wear and tear and a high structural strength (minimal distortion).
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: August 14, 2012
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Laszlo Pelsoeczy
  • Publication number: 20120144989
    Abstract: The invention relates to an air hardenable high-hardness steel for armouring applications, such as armour plate for use in light armoured vehicles and body armour, and having a high level of ballistic performance relative to its plate thickness. In particular, the invention concerns a high ballistic strength martensitic armour steel which, in an air cooled and untempered condition, has a strength coefficient (s0) of higher than 2500 MPa; a flow parameter (P) of higher than 8.0, preferably higher than 18.0; and a manganese content of 1.8 to 3.6% by weight of manganese, preferably 2.8 to 3.1% by weight of manganese. The armour steel also includes retained austenite at a volume fraction of at least 1%, and preferably a volume fraction of 4 to 20%.
    Type: Application
    Filed: June 15, 2010
    Publication date: June 14, 2012
    Inventors: Deon Francoise Du Plessis, Jacob Johannes Wessels, Percy Phillip Adams, Roelof Johannes Mostert, Waldo Edmund Stumpf
  • Patent number: 8187530
    Abstract: An object of this invention is to provide a steel for high-cleanliness spring which is useful for the production of a spring excellent in fatigue characteristics in high Si steels. The steel for high-cleanliness spring with excellent fatigue characteristics according to the invention contains: in terms of mass %, C: 1.2% or less (excluding 0%); Si: 1.8% to 4%; Mn: 0.1% to 2.0%; and total Al: 0.01% or less (excluding 0%), with the remainder being iron and inevitable impurities, in which the Si amount and a solute (SIMS) Ca amount in the steel satisfy a relationship of the following expression (1): Si×10?7?solute (SIMS) Ca?Si×5×10?7??(1) (in which each of the solute (SIMS) Ca and Si represents the amount thereof (mass %) in the steel).
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: May 29, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Tomoko Sugimura, Koichi Sakamoto, Yoshio Fukuzaki, Atsuhiko Yoshida, Takeshi Inoue
  • Publication number: 20120063946
    Abstract: A hot work tool steel family with exceptional thermal diffusivity, toughness (both fracture toughness and notch sensitivity resilience CVN—charpy V-notch) and trough hardenability has been developed. Mechanical resistance and yield strength at room and high temperatures (above 600° C.) are also high, because the tool steels of the present invention present a high alloying level despite the high thermal conductivity. Given the exceptional resistance to thermal fatigue and thermal shock, wear resistance can be severely increased for many applications requiring simultaneously resistance to thermal cracking and wear like is the case for some forging and some parts of die casting dies.
    Type: Application
    Filed: March 12, 2010
    Publication date: March 15, 2012
    Inventor: Isaac Valls Anglés
  • Patent number: 8012272
    Abstract: The present invention provides a tool steel containing, by mass percent, 0.55 to 0.85% of C, 0.20 to 2.50% of Si, 0.30 to 1.20% of Mn, 0.50% or less of Cu, 0.01 to 0.50% of Ni, 6.00 to 9.00% of Cr, 0.1 to 2.00% of Mo+0.5 W, and 0.01 to 0.40% of V, with the balance of Fe and inevitable impurities, in which, when an area rate of a coarse carbide having a circle equivalent diameter of 2 ?m or more in a cross section parallel to a forging direction is represented by L(%) and an area rate of the coarse carbide in a cross section perpendicular to the forging direction is represented by T(%), the area rate L is 0.001% or more, the area rate T is 0.001% or more, and the ratio L/T is within a range from 0.90 to 3.00. The tool steel of the invention exhibits an isotropic size change in quenching and tempering.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: September 6, 2011
    Assignee: Daido Tokushuko Kabushiki Kaisha
    Inventor: Takayuki Shimizu
  • Patent number: 8002909
    Abstract: Alloy compositions suitable for fabricating medical devices, such as stents, are disclosed. In certain embodiments, the compositions have small amounts of nickel, e.g., the compositions can be substantially free of nickel.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: August 23, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Charles Horace Craig
  • Publication number: 20110103995
    Abstract: A pre-alloyed iron-based powder is provided including small amounts of alloying elements which make possible a cost efficient manufacture of sintered parts. The pre-alloyed iron-based powder comprises 0.2-1% by weight of Cr, 0.05-0.3% by weight of Mo, 0.1-1% by weight of Ni, 0.09-0.3% by weight of Mn, 0.01% by weight or less of C, less than 0.25% by weight of O, and less than 1% by weight of inevitable impurities, the balance being iron.
    Type: Application
    Filed: June 5, 2009
    Publication date: May 5, 2011
    Applicant: HOGANAS AB (PUBL)
    Inventors: Alexander Klekovkin, David Milligan, Nagarjuna Nandivada
  • Publication number: 20100307430
    Abstract: The invention concerns steels having excellent resistance over time, in a corrosive atmosphere due to oxidizing environments such as, for example, fumes or water vapour, under high pressure and/or temperature. The invention concerns a steel composition for special applications, said composition containing, by weight, about 1.8 to 11% of chromium (and preferably between about 2.3 and 10% of chromium), less than 1% of silicon, and between 0.20 and 0.45% of manganese. It has been found that it is possible to adjust the contents of the composition based on a predetermined model, selected to obtain substantially optimal properties with respect to corrosion in specific conditions of high temperature performances. Said model can involve as additive of as residue at least one element selected among molybdenum, tungsten, cobalt, and nickel.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 9, 2010
    Applicants: V & M FRANCE, ANNIE FOUQUET, CATHELINE PETELOT, EMILIE PETELOT, ADELINE PETELOT
    Inventors: Daniel Petelot, Annie Fouquet, Catheline Petelot, Emilie Petelot, Adeline Petelot, Jean Leyer, Bruno Vandenberghe, Viviane Lepingle, Ghislain Louis
  • Publication number: 20100294401
    Abstract: A high strength bainitic steel and a process for producing seamless pipes for OCTG applications are described. In particular, the advantages ensuing to the steel of the invention are the improvement in strength-toughness over tempered martensitic steels, and a simplified thermal treatment. Quenching is not necessary and by avoiding the quenching treatment the microstructure results far more homogeneous, which allows thick walled tubes to be produced. For the same steel composition, in comparison to conventional tempered martensitic structures, a better combination of strength and toughness can be achieved, in particular by tempering as rolled carbide-free bainitic structures.
    Type: Application
    Filed: November 19, 2007
    Publication date: November 25, 2010
    Applicant: Tenaris Connections Limited
    Inventors: Gonzalo Roberto Gomez, Teresa Estela Pérez, Harsad Kumar Dharamshi Hansraj Bhadeshia
  • Publication number: 20100247368
    Abstract: A bainitic steel alloy and a method for making such an alloy are disclosed, in which the bainite plates are particularly small, less than 50 nanometres in width. In preferred embodiments of the invention, each bainite plate is surrounded by a film of retained austenite; the level of retained austenite in the alloy is greater than 10%; and the alloy is substantially free of blocky unstable austenite and cementite.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 30, 2010
    Applicant: ROLLS-ROYCE PLC
    Inventors: Martin J. RAWSON, Mathew J. PEET, Harshad K.D.H BHADESHIA, Scott D. WOOD, Paul O. HILL, Emma E. BOOTH
  • Publication number: 20100221139
    Abstract: Method for reducing the segregated seams of a steel which has high mechanical strength and high wear resistance and whose composition comprises by weight: 0.30%?C?1.42%; 0.05%?Si?1.5%; Mn?1.95%; Ni?2.9%; 1.1%?Cr?7.9%; 0.61%?Mo?4.4%; optionally V?1.45%, Nb?1.45%, Ta?1.45% and V+Nb/2+Ta/4?1.45%; less than 0.1% of boron, less than 0.19% of (S+Se/2+Te/4), less than 0.01% of calcium, less than 0.5% of rare earths, less than 1% of aluminum, less than 1% of copper; the balance being iron and impurities resulting from the production operation. The composition further complies with: 800?D?1150 with D=540(C)0.25+245(Mo+3V+1.5Nb+0.75Ta)0.30+125Cr0.20+15.8Mn+7.4Ni+18Si. According to the method, the molybdenum is completely or partially replaced with double the proportion of tungsten so that W>0.21%, and Ti, Zr, C are adjusted so that, after adjustment, Ti+Zr/2?0.2W, (Ti+Zr/2)×C?0.07, Ti+Zr/2?1.49% and D is unchanged at approximately 5%. Steel obtained and method for producing a steel workpiece.
    Type: Application
    Filed: May 10, 2010
    Publication date: September 2, 2010
    Applicant: INDUSTEEL CREUSOT
    Inventors: Jean BEGUINOT, Dominique Viale
  • Publication number: 20100221140
    Abstract: A hot rolled low carbon steel strip with a reduced content of silicon and thickness comprised between 0.65 and 1.5 mm can be used in a particularly advantageous way for the production of multilayer packs of cold cut lamination and all those products composed of a number of overlying steel sheets which are required to have a substantial parallelism, planarity and no burrs, providing a valid alternative solution to the cold rolled, non-oriented grain silicon steel strip which is usually employed to this purpose. Said steel strip is characterized by a silicon content <0.03%, a thickness preferably between about 0.65 and 1 mm, reduced tolerances of ±0.05 mm, a parallelism rate <0.02 mm and a fine and uniform grain structure with the 70% of the ferritic grains comprised between the grades 9 and 12 of the ASTM E 112 standard.
    Type: Application
    Filed: January 26, 2006
    Publication date: September 2, 2010
    Inventor: Giovanni Arvedi
  • Publication number: 20100186855
    Abstract: The invention relates to a steel and a processing method for high-strength fracture-splittable machine components that are composed of at least two fracture-splittable parts. The steel and method are characterized in that the chemical composition of the steel (expressed in percent by weight) is as follows: 0.40%?C?0.60%; 0.20%?Si?1.00%; 0.50%?Mn?1.50%; 0%?Cr?1.00%; 0%?Ni?0.50%; 0%?Mo?0.20%; 0%?Nb?0.050%; 0%?V?0.30%; 0%?Al?0.05%; 0.005%?N?0.020%, the rest being composed of iron and smelting-related impurities and residual matter.
    Type: Application
    Filed: July 27, 2007
    Publication date: July 29, 2010
    Inventors: Roman Diederichs, Axel Stueber, Robert Lange
  • Patent number: 7695576
    Abstract: Disclosed is an improved low alloy high speed tool steel, which exhibits constant toughness with small dispersion of the properties after heat treatment and regardless of the size of the products. The steel consists essentially of, by weight %, C: 0.50-0.75%, Si: 0.02-2.00%, Mn: 0.1-3.0%, P: up to 0.050%, S: up to 0.010%, Cr: 5.0-6.0%, W: 0.5-2.0%, V: 0.70-1.25%, Al: up to 0.1%, O: up to 0.01% and N: up to 0.04% and the balance of Fe. In the steel [Mo+0.5W](Mo-eq.) is 2.5-5.0%, [Mo-eq.]/V is 2-4. In the annealed state the steel contains carbides of the types of MC+M6C and/or M23C6(M7C3), and after quenching from a temperature of 1100-1200° C. it contains substantially no remaining carbide or, even contains, almost all the carbides are of MC.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: April 13, 2010
    Assignee: Daido Steel Co., Ltd.
    Inventor: Kozo Ozaki
  • Publication number: 20100047106
    Abstract: This invention provides a forging steel excellent in forgeability, which forging steel comprises, in mass %, C: 0.001 to less than 0.07%, Si: 3.0% or less, Mn: 0.01 to 4.0%, Cr: 5.0% or less, P: 0.2% or less, S: 0.35% or less, Al: 0.0001 to 2.0%, N: 0.03% or less, one or both of Mo: 1.5% or less (including 0%) and Ni: 4.5% or less (including 0%), and a balance of iron and unavoidable impurities; wherein Di given by the following Equation (1) is 60 or greater: Di=5.
    Type: Application
    Filed: April 10, 2008
    Publication date: February 25, 2010
    Inventors: Hajime Saitoh, Tatsuro Ochi, Masayuki Hashimura
  • Patent number: 7662246
    Abstract: An iron-based alloy for use in a material for high-pressure components. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: February 16, 2010
    Assignees: Boehler Hochdrucktechnik GmbH, Boehler Edelstahl GmbH
    Inventors: Johann Zand, Johannes Schedelmaier, Manfred Pölzl
  • Patent number: 7597841
    Abstract: Provided is a weld metal for Cr—Mo steels which is suppressed in the formation of ferrite bands and therefore has heightened toughness and tensile strength and at the same time, good SR cracking resistance. The weld metal according to the present invention contains C: 0.02 to 0.06% (mass %, which will equally apply hereinafter), Si: 0.1 to 1.0%, Mn: 0.3 to 1.5%, Cr: 2.0 to 3.25%, Mo: 0.8 to 1.2%, Ti: 0.010 to 0.05%, B: 0.0005% or less (inclusive of 0%), N: 0.002 to 0.0120%, O: 0.03 to 0.07%, and the balance being Fe and inevitable impurities, wherein a ratio of the Ti content [Ti] to the N content [N] satisfies the following range: 2.00<[Ti]/[N]<6.25.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: October 6, 2009
    Assignee: Kobe Steel, Ltd.
    Inventors: Yoshitomi Okazaki, Koichi Hosoi
  • Publication number: 20090142219
    Abstract: A sinter-hardening powder can yield a sintered compact with high strength, high hardness, and high density. A raw powder for sintering includes Fe as its primary component and also comprising 0.1-0.8 wt % C, 5.0-12.0 wt % Ni, 0.1-2.0 wt % Cr, and 0.1-2.0 wt % Mo, wherein the mean particle size of the raw powder for sintering is 20 ?m or less. The sintered and tempered compact, without any quenching treatment, has high hardness, high strength, high density, and good ductility.
    Type: Application
    Filed: February 5, 2009
    Publication date: June 4, 2009
    Applicant: TAIWAN POWDER TECHNOLOGIES CO., LTD.
    Inventors: Kuen-Shyang Hwang, Yung-Chung Lu
  • Publication number: 20090142220
    Abstract: A sinter-hardening raw powder can yield a press-and-sinter compact with high hardness. The raw powder for sintering includes Fe as its primary component and also includes 0.3-0.8 wt % C, 5.0-12.0 wt % Ni, 1.0-5.0 wt % Cr, and 0.1-2.0 wt % Mo, wherein the mean particle size of the raw powder for sintering is between 50 and 100 ?m. The sintered and tempered compact, without any quenching treatment, has high hardness.
    Type: Application
    Filed: February 5, 2009
    Publication date: June 4, 2009
    Applicant: TAIWAN POWDER TECHNOLOGIES CO., LTD.
    Inventors: Kuen-Shyang Hwang, Yung-Chung Lu
  • Publication number: 20080159901
    Abstract: Method for reducing the segregated seams of a steel which has high mechanical strength and high wear resistance and whose composition comprises by weight: 0.30%?C?1.42%; 0.05%?Si?1.5%; Mn?1.95%; Ni?2.9%; 1.1%?Cr?7.9%; 0.61%?Mo?4.4%; optionally V?1.45%, Nb?1.45%, Ta?1.45% and V+Nb/2+Ta/4?1.45% ; less than 0.1% of boron, less than 0.19% of (S+Se/2+Te/4), less than 0.01% of calcium, less than 0.5% of rare earths, less than 1% of aluminum, less than 1% of copper; the balance being iron and impurities resulting from the production operation. The composition further complies with: 800?D?1150 with D=540(C)0.25+245 (Mo+3 V+1.5 Nb+0.75 Ta)0.30+125 Cr0.20+15.8 Mn+7.4 Ni+18 Si. According to the method, the molybdenum is completely or partially replaced with double the proportion of tungsten so that W>0.21%, and Ti, Zr, C are adjusted so that, after adjustment, Ti+Zr/2?0.2 W, (Ti+Zr/2)×C?0.07, Ti+Zr/2?1.49% and D is unchanged at approximately 5%. Steel obtained and method for producing a steel workpiece.
    Type: Application
    Filed: May 12, 2005
    Publication date: July 3, 2008
    Inventors: Jean Beguinot, Dominique Viale
  • Patent number: 7374622
    Abstract: The invention comprises a structural member formed from iron alloyed with 0.15% to 0.20% carbon, 1.00% to 1.80% manganese, 1.00% to 1.60% silicon, 1.50% to 2.50% chromium, 2.50% to 3.50% nickel, 0.40% to 0.70% molybdenum and 0.0025% to 0.0005% boron, all by weight. Preferably, alloy is subjected to a two-level thermal processing to confer a bainitic structure to the steel. Also preferably, the structural member is a frog for a railway track switch.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: May 20, 2008
    Inventors: Josef Zboril, Eva Schmidova
  • Patent number: 7357060
    Abstract: A vehicle is armored the steps of sequentially making a steel plate with a thickness of 4 mm to 15 mm of by weight 0.2 to 0.4% carbon, 0.3 to 0.8% silicon, 1.0 to 2.5% manganese, max. 0.02% phosphorous, max. 0.02% sulfur, max. 0.05% aluminum, max. 2% copper, 0.1 to 0.5% chromium, max. 2% nickel 0.1 to 1% molybdenum, 0.001 to 0.01% boron, 0.01 to 1% tungsten, max. 0.05% nitrogen, and balance iron and impurities. This plate is heated to above the AC3 temperature and deformed without cooling in a press. While still in the press, the steel plate is cooled and cured. Then the deformed and cured steel plate is taken out of the press and mounted on the motor vehicle without significant further working or shaping.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: April 15, 2008
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Markus Müller, Christian Gnass, Wilfried Rostek, Thomas Tröster, Rainer Lübbers
  • Publication number: 20080069718
    Abstract: Alloy compositions suitable for fabricating medical devices, such as stents, are disclosed. In certain embodiments, the compositions have small amounts of nickel, e.g., the compositions can be substantially free of nickel.
    Type: Application
    Filed: September 27, 2007
    Publication date: March 20, 2008
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventor: Charles Horace Craig
  • Patent number: 7170073
    Abstract: A stainless steel slab containing B, wherein a protecting material is joined onto at least two faces across the bloom from each other in a stainless steel bloom containing B of 0.3–2.5 mass %, being integrated into one-piece by forming a weld metal comprising a stainless steel with chemical composition that satisfies the relationship expressed by following formulas (1)–(4), and a method to produce a steel product by rolling said slab. Further, it is preferable to interpose an insert material between above stainless steel bloom and above protecting material in bonding process. 15?Cr eq?30,??(1) 4?Cr eq?Ni eq?17,??(2) Cr eq=Cr+1.5 Si+Mo?5 B,??(3) Ni eq=Ni+30 (C+N)+0.5 Mn??(4) Herein, each symbol of a chemical element designates the content (mass %) of relevant chemical element contained in steel.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: January 30, 2007
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Kazuhiro Ishida, Kazuhiro Ogawa, Takeo Yazawa, Hideaki Yamamoto, Hideo Morisaki
  • Patent number: 7083688
    Abstract: The high-strength race of the present invention comprises using A steel for a high-strength race comprising the following elements in percentage by weight: C: 0.30 to 0.60%, Si: 0.30 to 1.30%, Mn: 0.5 to 1.5%, B: 0.0050% or less, Cr: 0.1 to 0.5%, Mo: 0.1 to 0.5%, Si+Mo: 0.5 to 1.4%, Ni: 0.02 to 1.0%, the balance of Fe and unavoidable impurities, performing induction hardening to make the race have a surface hardness of 58 HRC or more and further a surface hardness of 52 HRC or more even after the surface is tempered at 300° C. The high-strength race is superior in rotating fatigue properties, anti-surface fatigue strength and productivity by a combination of composition control and induction hardening.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: August 1, 2006
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shinji Asano, Youichi Watanabe, Tatsuo Iguchi, Kanji Ueno
  • Patent number: 6916444
    Abstract: This invention related to a novel iron base alloy using residual austenite to improve wear resistance for valve seat insert material for internal combustion engines. The residual austenite is stable even after heat treatment and liquid nitrogen chilling. The alloy comprises of 2.0-4.0 wt % carbon, 1.0-3.0 wt % silicon, 0-4.0 wt % manganese, 3.0-9.0 wt % chromium, 5.0-15.0 wt % molybdenum, 3.0-15.0 wt % nickel, 0-6.0 wt % vanadium, 0-4.0 wt % niobium, 0-6.0 wt % cobalt, and the balance being iron with impurities.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: July 12, 2005
    Assignee: Alloy Technology Solutions, Inc.
    Inventor: Xuecheng Liang
  • Patent number: 6866816
    Abstract: A unique austenitic iron base alloy for wear and corrosion resistant applications, characterized by its excellent sulfuric acid corrosion resistance and good sliding wear resistance, is useful for valve seat insert applications when corrosion resistance is required. The alloy comprises 0.7-2.4 wt % carbon, 1.5-4 wt % silicon, 3-9 wt % chromium, less than 6 wt % manganese, 5-20 wt % molybdenum and tungsten combined, with the tungsten comprising not more than ? of the total, 0-4 wt % niobium and vanadium combined, 0-1.5 wt % titanium, 0.01-0.5 wt % aluminum, 12-25 wt % nickel, 0-3 wt % copper, and at least 45 wt % iron.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: March 15, 2005
    Assignee: Alloy Technology Solutions, Inc.
    Inventors: Xuecheng Liang, Gary R. Strong
  • Patent number: 6821360
    Abstract: A heat-resisting steel comprising 0.15-0.30 wt. % C, 0.05-0.3 wt. % Si, 0.01-0.7 wt. % Mn, 1.8-2.5 wt. % Cr, 0.15-0.23 wt. % V, 1.5-2.5 wt. % W, 0.01-0.02 wt. % Ti, 0.01-0.08 wt. % Nb, 0.005-0.03 wt. % N, 0.001-0.015 wt. % B, and Fe and unavoidable impurities as the remainder; a heat-resisting steel comprising 0.15-0.30 wt. % C, 0.05-0.3 wt. % Si, 0.01-0.7 wt. % Mn, 1.8-2.5 wt. % Cr, 0.15-0.23 wt. % V, 1.5-2.5 wt. % W, 0.3-0.8 wt. % Mo, 0.01-0.02 wt. % Ti, 0.01-0.08 wt. % Nb, 0.005-0.03 wt. % N, 0.001-0.015 wt. % B, and Fe and unavoidable impurities as the remainder; and a heat-resisting steel that is obtained by subjecting one of the above heat-resisting steels to a heat treatment comprising the step of oil-cooling the heat-resisting steel to a temperature of 300° C. or lower. These heat-resisting steels are excellent in both high-temperature strength and impact properties.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: November 23, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryuichi Ishii, Yoichi Tsuda, Masayuki Yamada