| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 420043000 | Eight percent or more nickel containing | 38 |
| 20130287619 | NEUTRON SHIELDING MATERIAL, METHOD OF MANUFACTURING THE SAME, AND CASK FOR SPENT FUEL - In one embodiment, a neutron shielding material is formed of boron-adding stainless steel of either austenite-ferrite two-phase stainless steel or ferritic stainless steel, the austenite-ferrite two-phase stainless steel containing, in mass %, B: 0.5% to 2.0%, Ni: 3.0 to 10.0%, and Cr: 21.00 to 32.00%, the ferritic stainless steel containing, in mass %, B: 0.5% to 2.0%, Ni: 4.0% or less, and Cr: 11.00 to 32.00%, and the boron-adding stainless steel being well in ductility and thermal conduction property. | 10-31-2013 |
| 20140308155 | METHOD FOR POLISHING ALLOY MATERIAL AND METHOD FOR PRODUCING ALLOY MATERIAL - An efficient polishing method for polishing an alloy material to have an excellent mirror surface is provided. The alloy material contains a main component and 0.1% by mass or more of an element that has a Vickers hardness (HV) different from the Vickers hardness of the main component by 5 or more. A polishing composition used in the polishing method contains abrasive grains and an oxidant. The alloy material is preferably an aluminum alloy, a titanium alloy, a stainless steel, a nickel alloy, or a copper alloy. It is also preferable that the alloy material is subjected to preliminary polishing before being subjected to polishing in which the polishing composition is used. | 10-16-2014 |
| 420044000 | Over 2 percent manganese containing | 8 |
| 20090324441 | AUSTENITIC STAINLESS CAST STEEL PART, METHOD FOR PRODUCTION AND USE THEREOF - A rustproof austenitic cast steel part having tensile strength greater than 550 MPA and elongation at break over 30%, is characterised in that the cast steel having an aluminium content of 0 to 4% and a silicon content of 1 to 4% is within an alloying range that is determined by the coordinates of four points (Cr | 12-31-2009 |
| 20140234153 | Cost Reduced Steel for Hydrogen Technology with High Resistance to Hydrogen-Induced Embrittlement - A corrosion-resistant, hot and cold formable and weldable steel for use in hydrogen-induced technology with high resistance to hydrogen embrittlement has the following composition: 0.01 to 0.4 percent by mass of carbon, ≦3.0 percent by mass of silicon, 0.3 to 30 percent by mass of manganese, 10.5 to 30 percent by mass of chromium, 4 to 12.5 percent by mass of nickel, ≦1.0 percent by mass of molybdenum, ≦0.2 percent by mass of nitrogen, 0.5 to 8.0 percent by mass of aluminum, ≦4.0 percent by mass of copper, ≦0.1 percent by mass of boron, ≦1.0 percent by mass of tungsten, ≦5.0 percent by mass of cobalt, ≦0.5 percent by mass of tantalum, ≦2.0 percent by mass of at least one of the elements: niobium, titanium, vanadium, hafnium and zirconium, ≦0.3 percent by mass of at least one of the elements: yttrium, scandium, lanthanum, cerium and neodymium, the remainder being iron and smelting-related steel companion elements. | 08-21-2014 |
| 20170233855 | HIGH ENTROPY ALLOY HAVING TWIP/TRIP PROPERTY AND MANUFACTURING METHOD FOR THE SAME | 08-17-2017 |
| 420045000 | Copper containing | 3 |
| 20100272595 | HIGH STRENGTH ALLOYS - High strength metal alloys are described herein. At least one composition of a metal alloy includes chromium, nickel, copper, manganese, silicon, niobium, tungsten and iron. System, methods, and heaters that include the high strength metal alloys are described herein. At least one heater system may include a canister at least partially made from material containing at least one of the metal alloys. At least one system for heating a subterranean formation may include a tublar that is at least partially made from a material containing at least one of the metal alloys. | 10-28-2010 |
| 20150337419 | Austenitic Stainless Steel Alloy - An austenitic stainless steel alloy is provided that includes 0.7-1.2 wt % of N, 10-25 wt % of Ni, 26-34 wt % of Cr, 0.1-1.0 wt % of Nb, 0.1-1.0 wt % of V, and a balance of Fe and incidental impurities. | 11-26-2015 |
| 20160124391 | COMPONENT FOR A TIMEPIECE MOVEMENT - A micromechanical component for a timepiece movement including a metal body formed using a single material. The single material is of high-interstitial austenitic steel type including at least one non-metal as the interstitial atom in a proportion between 0.15% and 1.2% with respect to total mass of the material. | 05-05-2016 |
| 420046000 | Molybdenum or tungsten containing | 1 |
| 420047000 | Group IV or V transition metal containing | 1 |
| 20140086785 | AUSTENITIC IRON-BASED ALLOY, TURBOCHARGER AND COMPONENT MADE THEREOF - An austenitic iron-based alloy containing manganese and at most 10% by weight and in particular at most 5% by weight nickel, based in each case on the overall weight of the iron-based alloy. | 03-27-2014 |
| 420048000 | Group IV or V transition metal containing | 1 |
| 20140056751 | CAST AUSTENITIC STAINLESS STEEL - An austenitic stainless cast steel having a volume fraction of a ferrite phase of 0.1-5.0%. | 02-27-2014 |
| 420049000 | Copper containing | 13 |
| 20080304996 | High Nb, Ta, and Al Creep- and Oxidation-Resistant Austenitic Stainless Steels - An austenitic stainless steel HTUPS alloy includes, in weight percent: 15 to 30 Ni; 10 to 15 Cr; 2 to 5 Al; 0.6 to 5 total of at least one of Nb and Ta; no more than 0.3 of combined Ti+V; up to 3 Mo; up to 3 Co; up to 1 W; up to 0.5 Cu; up to 4 Mn; up to 1 Si; 0.05 to 0.15 C; up to 0.15 B; up to 0.05 P; up to 1 total of at least one of Y, La, Ce, Hf, and Zr; less than 0.05 N; and base Fe, wherein the weight percent Fe is greater than the weight percent Ni wherein said alloy forms an external continuous scale comprising alumina, nanometer scale sized particles distributed throughout the microstructure, said particles comprising at least one composition selected from the group consisting of NbC and TaC, and a stable essentially single phase fcc austenitic matrix microstructure, said austenitic matrix being essentially delta-ferrite-free and essentially BCC-phase-free. | 12-11-2008 |
| 20090202380 | AUSTENITIC STAINLESS STEEL STRIP HAVING A BRIGHT SURFACE FINISH AND EXCELLENT MECHANICAL PROPERTIES - The invention relates to an austenitic stainless steel strip having an elastic limit Rp | 08-13-2009 |
| 20100034690 | CARBURIZATION RESISTANT METAL MATERIAL - There is provided a metal material having excellent workability and metal dusting resistance, which is suitable as a raw material for cracking furnaces, reforming furnaces, heating furnaces, heat exchangers, etc. in petroleum refining, petrochemical plants, and the like. | 02-11-2010 |
| 20120141318 | AUSTENITIC STAINLESS STEEL - An austenitic stainless steel, which consists of by mass percent, C: not more than 0.02%, Si: not more than 1.5%, Mn: not more than 2%, Cr: 17 to 25%, Ni: 9 to 13%, Cu: more than 0.26% not more than 4%, N: 0.06 to 0.35%, sol. Al: 0.008 to 0.03%. One or more elements selected from Nb, Ti, V, TA, Hf, and Zr in controlled amounts can be included with the balance being Fe and impurities. P, S, Sn, As, Zn, Pb and Sb among the impurities are controlled as P: 0.006 to 0.04%, S: 0.0004 to 0.03%, Sn: 0.001 to 0.1%, As: not more than 0.01%, Zn: not more than 0.01%, Pb: not more than 0.01% and Sb: not more than 0.01%. The amounts of S, P, Sn, As, Zn, Pb and Sb and the amounts of Nb, Ta, Zr, Hf, and Ti are further controlled using formulas. | 06-07-2012 |
| 20120171070 | ALLOY - A alloy and a process of forming a alloy are disclosed. The alloy has a predetermined grain boundary morphology. The alloy includes by weight greater than about 0.06 percent carbon, up to about 0.0015 percent sulfur, less than about 16 percent chromium, between about 39 percent and about 44 percent nickel, between about 2.5 percent and about 3.3 percent niobium, between about 1.4 percent and about 2 percent titanium, up to about 0.5 percent aluminum, up to about 0.006 percent boron, up to about 0.3 percent copper, up to about 0.006 percent nitrogen, and greater than about 0.5 percent molybdenum. | 07-05-2012 |
| 20120237388 | AUSTENITIC STAINLESS STEEL SHEET AND A METHOD FOR ITS MANUFACTURE - An austenitic stainless steel sheet for springs having both a high strength and excellent formability has a chemical composition comprising C: 0.01-0.15%, Si: at most 3.0%, Mn: at most 3.0%, Cr: 10.0-30.0%, Ni: 4.0-20.0%, N: at most 0.40%, and a remainder of Fe and impurities, and it has a metallurgical structure such that the austenite content γs (%) in the surface region of the steel sheet and the austenite content γc (%) in the center region of the sheet thickness satisfy (γs+γc)/2≦55 and γs/γc≧0.10, with the remaining structure being primarily strain-induced martensite. | 09-20-2012 |
| 20130287620 | STEEL FOR STEAM TURBINE BLADE WITH EXCELLENT STRENGTH AND TOUGHNESS - The present invention aim at providing a steel for steam turbine blades which is excellent in terms of strength and toughness. The steel of the present invention has a composition which contains, in terms of % by mass, 0.02-0.10% of C, up to 0.25% of Si, 0.001-0.10% of Mn, up to 0.010% of P, up to 0.010% of S, 8.5-10.0% of Ni, 10.5-13.0% of Cr, 2.0-2.5% of Mo, 0.001-0.010% of N, 1.15-1.50% of Al, less than 0.10% of Cu, up to 0.20% of Ti, and the remainder being incidental impurities and Fe, and which satisfies 6.0≦Ni/Al≦8.0, 9.0≦Nieq≦11.0 and 17.0≦Creq≦19.0, in which | 10-31-2013 |
| 20130336834 | AUSTENITIC STAINLESS STEEL EXCELLENT IN CORROSION RESISTANCE AND BRAZEABILITY - The present invention provides austenitic stainless steel which is not only excellent in brazeability, but is also excellent in corrosion resistance in an environment where condensation of combustion exhaust gas causes formation of condensed water which contains nitric acid ions or sulfuric acid ions and which is low in pH or in an environment of an aqueous solution which contains chloride ions, which contains, by mass %, C: 0.080% or less, Si: 1.2 to 3.0%, Mn: 0.4 to 2.0%, P: 0.03% or less, S: 0.003% or less, Ni: 6.0 to 12.0%, Cr: 16.0 to 20.0%, Cu: 0.2 to 3.0%, Al: 0.002 to 0.10%, N: 0.030 to 0.150%, and Mo: 0.1 to 1.0%, has a balance of Fe and unavoidable impurities, and satisfies Formula (A): 1.6≦[Cu]×[Si≦]4.4 and Formula (B): 0.16≦2[N]+[Mo≦]1.0. | 12-19-2013 |
| 20140030134 | Martensitic Stainless Steel Having Excellent Corrosion Resistance - A purpose of the present invention is to provide a martensitic stainless steel applicable in environments involving both wet carbon dioxide gas and wet hydrogen sulfide and excellent in weldability, manufacturability, and resistance to strain age hardening. Provided is a martensitic stainless steel having excellent corrosion resistance and resistance to strain age hardening comprising, in percent by mass, 0.02% or less of C, 0.02% or less of N, 0.1 to 0.5% of Si, 0.1 to 0.5% of Mn, 10 to 13% Cr, Ni exceeding 5.0% but 8% or less, 1.5 to 3% of Mo, 0.01 to 0.05% of V, 0.16 to 0.30% of Zr, 0.01 to 0.05% of Ta, and the balance of Fe and unavoidable impurities, wherein the martensitic stainless steel satisfies the condition that the sum of the carbon and the nitrogen exceeds 0.02% but 0.04% or less. | 01-30-2014 |
| 20140154129 | STAINLESS STEEL FOR FUEL CELL SEPARATOR - Stainless steel for fuel cell separators contains C: ≦0.03%, Si: ≦1.0%, Mn: ≦1.0%, S: ≦0.01%, P: ≦0.05%, Al: ≦0.20%, N: ≦0.03%, Cr: 16 to 40%, and one or more of Ni: ≦20%, Cu: ≦0.6% and Mo: ≦2.5%, the balance being Fe and inevitable impurities. According to X-ray photoelectron spectroscopy, the surface of the stainless steel contains fluorine and provides a 3.0 or higher ratio of the total of atomic concentrations of Cr and Fe in other than the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks to the total of atomic concentrations of Cr and Fe in the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks. | 06-05-2014 |
| 20140328715 | TWIP AND NANO-TWINNED AUSTENITIC STAINLESS STEEL AND METHOD OF PRODUCING THE SAME - The invention relates to a method of producing a TWIP and nano twinned austenitic stainless steel. The austenitic steel should not contain more than 0.018 wt % C, 0.25-0.75 wt % Si, 1.5-2 wt % Mn, 17.80-19.60 wt % Cr, 24.00-25.25 wt % Ni, 3.75-4.85 wt % Mo, 1.26-2.78 wt % Cu, 0.04-0.15 wt % N, and the balance of Fe. In order to form nano twins in the material the austenitic stainless steel should be brought to a temperature below 0° C., and imparted a plastic deformation to such a degree that the desired nano twins are formed, e.g. to a plastic deformation of around 30%. The invention also relates to the thus produced austenitic stainless steel. | 11-06-2014 |
| 20150050180 | Duplex Stainless Steel - The present invention relates to duplex ferritic austenitic stainless steel for the use chemical industry for nitric acid environments wherein good uniform corrosion resistance and high strength are required. The microstructure of the stainless steel has 35-65 volume % of ferrite, preferably 45-55 volume % of ferrite, the balance being austenite. The chemical composition contains less than 0.03 weight % carbon, less than 1 weight % silicon, less than 3 weight % manganese, 26-29.5 weight % chromium, 5-8.5 weight % nickel, 1-3 weight % molybdenum, 0.25-0.35 weight % nitrogen, 1-3 weight % copper, the rest being iron and inevitable impurities occurring in stainless steels. | 02-19-2015 |
| 20150132177 | STAINLESS CLAD STEEL WITH EXCELLENT CORROSION RESISTANCE - A stainless clad steel includes a stainless steel having Pitting Index of 35 or more as a cladding material, wherein the ratio of Cr concentration/Fe concentration in a passivation film portion of the above-described cladding material to Cr concentration/Fe concentration in a parent phase portion of the above-described cladding material is 1.20 or more and, in addition, the amount of precipitation of a σ (sigma) phase of the surface of the above-described cladding material is 2.0% or less on an area ratio basis. | 05-14-2015 |
| 420050000 | Over 1.5 percent silicon containing | 3 |
| 420051000 | Group IV or V transition metal containing | 3 |
| 20110020166 | IRON-BASE HEAT- AND CORROSION-RESISTANT BRAZING MATERIAL - The object of the present invention is to provide at a low cost iron-base heat- and corrosion-resistant brazing material which make it possible to braze parts made of a base metal selected from among various stainless steels, particularly ferritic stainless steels, at a practical temperature (of 1120° C. or lower) and are excellent in the wetting property against the base metal and which can attain excellent resistance to corrosion by sulfuric acid or nitric acid and high strength without coarsening the structure of the base metal. The iron-base heat- and corrosion-resistant brazing material is characterized by comprising 30 to 75 wt % of Fe, 35 wt % or less of Ni and 5 to 20 wt % of Cr in a total amount of Ni and Cr of 15 to 50 wt %, and 7 wt % or less of Si and 4 to 10 wt % of P in a total amount of Si and P of 9 to 13 wt %. The iron-base heat- and corrosion-resistant brazing material further comprising 0.5 to 5 wt % of Mo and/or 0.3 to 5 wt % of Cu in a total amount of Mo and Cu of 1 to 7 wt % is more preferable. | 01-27-2011 |
| 20140255245 | TURBOCHARGER AND A COMPONENT THEREFOR - A component for turbocharger applications, in particular in diesel engines, made of an iron-based alloy having an austenitic base structure which has a carbide structure. | 09-11-2014 |
| 20140294659 | METHOD FOR MANUFACTURING HIGH-SI AUSTENITIC STAINLESS STEEL - A high-Si content austenitic stainless steel, which exhibits stable acid resistance and excellent corrosion resistance in high-temperature and concentrated nitric acid, has a chemical composition comprising: C: at most 0.04%; Si: 2.5-7.0%; Mn: at most 10%; P at most 0.03%; S: at most 0.03%; N: at most 0.035%; sol. Al: at most 0.03%; Cr: 7-20%; Ni: 10-22%; optionally, one or more types selected from Nb, Ti, Ta and Zr: 0.05-0.7% in total; and the remainder being Fe and impurities, wherein a total amount of B | 10-02-2014 |
| 420052000 | Molybdenum containing | 9 |
| 20100135843 | APPARATUS FOR EXTRACTION OF SACCHARIDES FROM LIGNOCELLULOSE MATERIAL BY MEANS OF HYDROLYSIS AND USE OF A CERTAIN MATERIAL IN THE APPARATUS - The present invention relates to the use of a comparatively cheap material for the containment of at least a strongly acidic mineral acid solution highly diluted with water, by means of which saccharides are extracted from lignocellulose material by hydrolysis at a temperature of 175-240° C. and a pressure of 6-34 bar (0.6-14 MPa) as well as a time of 1-60 minutes and is characterized in that the material comprises, in addition to iron in an amount greater than any other individual substance and usually at least 50% by weight, at least chromium in an amount of 10.5-30% by weight, nickel in an amount of 2.5-29% by weight, and molybdenum in an amount of 0-7% by weight. The invention also relates to an apparatus. | 06-03-2010 |
| 20120244031 | DUPLEX STAINLESS STEEL HAVING EXCELLENT ALKALI RESISTANCE - The present invention provides a duplex stainless steel having excellent resistance to alkalis and particularly corrosion resistance against high-temperature concentrated alkali solutions and excellent weldability. The duplex stainless steel has a chemical composition comprising, in mass %, C: at most 0.03%, Si: at most 0.5%, Mn: at most 2.0%, P: at most 0.04%, S: at most 0.003%, Cr: at least 25.0% to less than 28.0%, Ni: at least 6.0% to at most 10.0%, Mo: at least 0.2% to at most 3.5%, N: less than 0.5%, W: at most 3.0%, and a remainder of Fe and impurities. | 09-27-2012 |
| 20130156629 | STAINLESS STEEL ALLOYS FOR MAKING ENDOPROSTHESES - Stainless steel alloys for fabricating endoprostheses. Endoprostheses can include a variety of devices such as staples, orthodontic wires, heart valves, filter devices, and stents, many of which devices are diametrically expandable devices. | 06-20-2013 |
| 20150110666 | ACETONE STORAGE - An acetone storage tank or acetone transfer pipe comprising stainless steel in which the amount of Cr is in the range 10.5 wt % to 20 wt %; the amount of Ni is ≧9 wt %, and the amount of Mo is 2.75%≧Mo≧0 wt %, of the stainless steel. | 04-23-2015 |
| 420053000 | Group IV or V transition metal containing | 5 |
| 20090081069 | Austenitic stainless steel - An austenitic stainless steel, which comprises by mass percent, C: not more than 0.10%, Si: 0.01 to 1.0%, Mn: 0.01 to 2%, Cr: 16 to 18%, Ni: more than 10% to less than 14%, Mo: more than 2.0% to not more than 3.0%, N: 0.03 to 0.10%, one or more elements selected from V, Nb and Ti satisfying the following formulas (1) and (2), | 03-26-2009 |
| 20120003116 | AUSTENITIC STAINLESS STEEL - An austenitic stainless steel, which consists of by mass %, C≦0.02%, Si: 0.01 to 0.50%, Mn: 0.01 to 2.0%, Cr: 24 to 26%, Ni: 19 to 22%, Mo: more than 0.10% to less than 0.50%, N: more than 0.04% to not more than 0.15%, and one or two elements selected from Nb≦0.30% and V≦0.40%, with the balance being Fe and impurities, and among the impurities P≦0.030%, S≦0.002% and Sn≦0.015%, and satisfies [2.5≦36Nb+53V+15N≦25.0] and [S+{(P+Sn)/2≦−5.76×10 | 01-05-2012 |
| 20120237389 | HEAT-RESISTANT AUSTENITIC STEEL HAVING HIGH RESISTANCE TO STRESS RELAXATION CRACKING - An austenitic steel not susceptible to relaxation cracking, with composition comprising, in percentages by weight: 0.019% ≦C ≦0.030%, 0.5% ≦Mn ≦2%, 0.1% ≦Si ≦0.75%, Al >0.25%, 18% ≦Cr ≦25%, 12% ≦Ni ≦20%, 1.5% ≦Mo ≦3%, 0.001 % | 09-20-2012 |
| 20150093284 | WELDING MATERIAL FOR WELDING OF SUPERALLOYS - Welding material for welding of superalloys comprising boron with the range of 0.3-0.8 wt. % B, 0.2-0.8 wt. % C, 17-23 wt. % Cr, 0.35-10 wt. % Mo, 0.1-4.15 wt. % Nb with nickel or iron and impurities to balance for weld repair of engine components manufactured of precipitation hardening superalloys with high content of gamma prime phase at an ambient temperature. | 04-02-2015 |
| 20160060720 | STAINLESS STEEL AND METHOD OF MANUFACTURING THE SAME - A stainless steel that includes chromium and other alloying element as a plurality of alloying elements including: a base material layer including chromium of a specified chromium content necessary for forming a passive film or more; and a superficial layer including chromium at a lower chromium content than the chromium content contained in the base material layer, and the superficial layer including the other alloying elements at a same content of the other alloying element as the content of the other alloying element contained in the base material layer. | 03-03-2016 |
| 420054000 | Group IV or V transition metal containing | 3 |
| 20130266477 | Alumina Forming Iron Base Superalloy - An austenitic stainless steel alloy, consists essentially of, in weight percent 2.5 to 4 Al; 25 to 35 Ni; 12 to 19 Cr; at least 1, up to 4 total of at least one element selected from the group consisting of Nb and Ta; 0.5 to 3 Ti; less than 0.5 V; 0.1 to 1 of at least on element selected from the group consisting of Zr and Hf; 0.03 to 0.2 C; 0.005 to 0.1 B; and base Fe. The weight percent Fe is greater than the weight percent Ni. The alloy forms an external continuous scale including alumina, and contains coherent precipitates of γ′—Ni | 10-10-2013 |
| 20150010425 | AUSTENITIC STAINLESS STEEL - An austenitic stainless steel, which consists of by mass percent, C: not more than 0.02%, Si: not more than 1.5%, Mn: not more than 2%, Cr: 17 to 25%, Ni: 9 to 13%, Cu: more than 0.26% not more than 4%, N: 0.06 to 0.35%, sol. Al: 0.008 to 0.03%. One or more elements selected from Nb, Ti, V, TA, Hf, and Zr in controlled amounts can be included with the balance being Fe and impurities. P, S, Sn, As, Zn, Pb and Sb among the impurities are controlled as P: 0.006 to 0.04%, S: 0.0004 to 0.03%, Sn: 0.001 to 0.1%, As: not more than 0.01%, Zn: not more than 0.01%, Pb: not more than 0.01% and Sb: not more than 0.01%. The amounts of S, P, Sn, As, Zn, Pb and Sb and the amounts of Nb, Ta, Zr, Hf, and Ti are further controlled using formulas. | 01-08-2015 |
| 20160144463 | FILLER FOR THE WELDING OF MATERIALS FOR HIGH-TEMPERATURE APPLICATIONS - A filler for welding including (in % by weight):
| 05-26-2016 |
