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WO/2023/188594A1 |
The present invention provides an electromagnetic steel sheet that is provided with an insulating film which exhibits a low iron loss and an excellent close-adhesiveness with respect to a forsterite film. For that purpose, provided is a ...
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WO/2023/186585A1 |
The invention relates to a method for producing a metal product in a plurality of successive process steps, each with an assigned set of manipulated variables, the method having the following steps: measuring an actual property of the me...
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WO/2023/190645A1 |
Provided is a method for annealing a hot-rolled steel strip, the method controlling the annealing temperature with high accuracy to obtain good magnetic properties throughout the length of the steel strip. In a method for annealing a hot...
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WO/2023/190339A1 |
A grain-oriented electromagnetic steel sheet according to an embodiment of the present invention has magnetic domain refining process lines indicating the portions at which a magnetic domain refining process is carried out on magnetic do...
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WO/2023/180543A1 |
The invention relates to a method for heating a sheet-steel blank or a pre-shaped sheet-steel component having a zinc coating or a zinc-alloy coating, in which method: the sheet-steel component or the sheet-steel blank is guided through ...
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WO/2023/182474A1 |
The component composition of the non-oriented electromagnetic steel sheet according to the present invention contains the following, in mass%: C : 0.0005 to 0.0030%, Si : 1.5 to 3.5%, Al : 0.10 to 2.00%, Mn : 0.1 to 2.0%, P : not more th...
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WO/2023/182338A1 |
This steel plate processing device comprises one or more support rolls and a laser irradiation unit. The laser irradiation unit comprises a laser output part, a scanning optical part, a condensing optical part, a casing, and an angle adj...
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WO/2023/179059A1 |
The present invention discloses 9Ni steel and a production method therefor, and relates to the technical field of steel production. The steel comprises the following chemical components in percentages by mass: C: 0.030-0.060%, Si: 0.10-0...
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WO/2023/181895A1 |
The purpose of the present invention is to provide a microorganism-corrosion-resistant low-alloy steel material and a method for producing the microorganism-corrosion-resistant low-alloy steel material. Provided is a microorganism-corros...
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WO/2023/176215A1 |
Provided is an austenitic stainless steel having excellent strength and ductility. The austenitic stainless steel has: a chemical composition containing 0.005-0.060% of C, 0.20-1.20% of Si, 4.0-8.0% of Mn, 12.0-15.0% of Ni, 19.0-24.0% of...
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WO/2023/176866A1 |
A non-oriented electromagnetic steel sheet in which: a base material has a chemical composition of, by mass, 0.0050% or less of C, over 3.70% and up to 4.60% of Si, over 0.20% and up to 0.50% of Mn, 0.23-0.75% of Al, 0.030% or less of P,...
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WO/2023/176855A1 |
According to the present invention, it is possible to obtain a grain-oriented electromagnetic steel sheet containing a predetermined composition and comprising a forsterite coating film having high peel resistance for processing with a s...
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WO/2023/176865A1 |
A non-oriented electromagnetic steel sheet, wherein: the chemical composition of a base material, in mass%, is not more than 0.0050% C, more than 3.70% but not more than 4.60% Si, more than 0.20% but not more than 0.50% Mn, 0.23-0.75% Al...
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WO/2023/174404A1 |
An electrical steel strip that is less than 3 mm in thickness and is made from a molten electrical steel melt having a superheat temperature of at least 30℃ above the liquidus temperature Tliquidus of the melt comprising: by weight, up...
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WO/2023/168884A1 |
A method for preparing a spiral heat exchange tube of a steam generator of a high temperature gas-cooled reactor, comprising steps of: perforation and annealing of a pierced billet; pickling and inspection of the pierced billet; multi-pa...
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WO/2023/171362A1 |
This soft-magnetic wire or soft-magnetic steel bar contains not more than 0.075 mass% of C, not more than 1.00 mass% of Si, 0.10-1.00 mass% of Mn, not more than 0.100 mass% of P, not more than 0.100 mass% of S, not more than 1.00 mass% o...
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WO/2023/170245A1 |
The invention relates to a high strength steel sheet with excellent hole expandability having a hole expansion ratio of 40% or more, and to a method of producing the same.
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WO/2023/167015A1 |
Provided is a three-phased three-legged wound core that has a reduced transformer core loss and exhibits excellent magnetic properties without using two or more kinds of materials having different magnetic properties. The three-phased ...
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WO/2023/167318A1 |
Provided is a steel material that can reduce the hydrogen embrittlement susceptibility of bolts. This steel material contains, in mass%, 0.30-0.50% of C, 0.01-0.30% of Si, 0.10-1.50% of Mn, 0.030% or less of P, 0.030% or less of S, 0.01-...
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WO/2023/166406A1 |
The invention concerns a steel plant for the production of long or flat products with a treatment circuit of water deriving from direct cooling and a relative process that envisage that the cooling waters coming from first machinery (10,...
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WO/2023/166934A1 |
The present invention provides a steel sheet which exibits excellent ammonia stress corrosion cracking properties, low-temperature toughness and strength characteristics, and in which reductions in flatness are suppressed, and a method f...
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WO/2023/167303A1 |
The present invention provides a means for suppressing propagation of edge cracking. The present invention provides a method for producing a grain-oriented electromagnetic steel sheet, the method comprising a step in which after hot roll...
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WO/2023/167226A1 |
The purpose of the present invention is to provide an alloy tool steel for hot working that has both excellent toughness and excellent softening resistance. Provided is an alloy tool steel for hot working, containing carbon, silicon, man...
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WO/2023/165008A1 |
A low-carbon and energy-saving production method for a 2,060-MPa-grade-or-higher wire rod for a bridge cable. By means of the component design of 'high chromium/medium silicon/no precious metal alloy' combined with the technological proc...
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WO/2023/165068A1 |
The present invention relates to a carburized bearing steel for a large-load rolling mill bearing and a production method therefor. The steel comprises the following chemical components (in percentages by mass): C: 0.17-0.23, Si: 0.15-0....
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WO/2023/167319A1 |
Provided is a steel material that can reduce the hydrogen embrittlement susceptibility of bolts. This steel material contains, in mass%, 0.30-0.50% of C, 0.01-0.30% of Si, 0.10-1.50% of Mn, 0.030% or less of P, 0.030% or less of S, more ...
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WO/2023/166926A1 |
Provided is a high-Ni alloy thick steel sheet having excellent weld high-temperature cracking resistance, the steel sheet being characterized by containing, in % by mass, 0.15% or less of C, 0.05 to 1.0% of Si, 0.05 to 2.0% of Mn, 0.035%...
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WO/2023/167016A1 |
Provided is a three-phase tripod iron core which has excellent magnetic characteristics and has a low transformer iron loss without using two or more kinds of materials having different magnetic characteristics. This three-phase tripod...
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WO/2023/166935A1 |
The present invention provides a steel sheet which exhibits excellent ammonia stress corrosion cracking properties, low-temperature toughness of a base material, toughness of HAZ, strength characteristics, and in which reductions in flat...
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WO/2023/162190A1 |
Provided are: a steel sheet having a tensile strength (TS) of 780 MPa or more and having excellent collision characteristics; a member; and methods for manufacturing the steel sheet and the member. This steel sheet has a component comp...
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WO/2023/162817A1 |
The present invention provides a duplex stainless steel material which has high strength and excellent toughness at low temperatures. A duplex stainless steel material according to the present disclosure contains, in mass%, 0.030% or les...
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WO/2023/162571A1 |
Provided is a high-strength steel plate which has excellent ammonia SCC resistance and low-temperature toughness, and is used for storage tanks for storing liquefied gas in energy transport ships. The steel plate: has a predetermined com...
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WO/2023/162507A1 |
Provided is a high-strength steel sheet having excellent low-temperature toughness and resistance to ammonia SCC, the steel sheet being provided to a storage tank, or similar, that is used to accommodate a liquefied gas in an energy tran...
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WO/2023/162896A1 |
In the present invention, a steel for a crude oil tank has a chemical composition containing, by mass, 0.03-0.20% of C, 0.05-0.50% of Si, 0.60-2.00% of Mn, 0.030% or less of P, 0.030% or less of S, 0.001-0.050% of Al, and 0.001-0.010% of...
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WO/2023/162522A1 |
The present invention provides a high-strength steel sheet which has exceptional ammonia SCC resistance and low-temperature toughness, and is used for a storage tank in which a liquefied gas is stored in an energy transport ship, or the ...
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WO/2023/157959A1 |
The present invention provides a grain-oriented electromagnetic steel sheet having good film adhesion. One or both of S and Se elements among the elements present at the grain boundary between ceramic particles contained in a base film o...
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WO/2023/155447A1 |
A high wear resistance steel for coal mining and a production method therefor. Chemical components and mass percentages are as follows: C: 0.15-0.30 %, Si: 0.20-0.50 %, Mn: 0.90-1.40 %, P ≤ 0.015 %, S ≤ 0.0020 %, Nb: ≤ 0.030 %, V: ...
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WO/2023/157938A1 |
Proposed is a manufacturing method for obtaining a grain-oriented electrical steel sheet that achieves an improvement in magnetic flux density in materials using an inhibitor. With respect to a steel slab having a predetermined compositi...
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WO/2023/155511A1 |
A method for controlling the surface quality of a nickel-based steel plate, comprising the following chemical components and the percentages by mass: C: 0.03%-0.07%; Si: 0.10%-0.30%; Mn: 0.60%-0.90%; P: ≤0.005%; S: ≤0.002%; Nb: ≤0....
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WO/2023/157897A1 |
Provided is a high-strength steel material that exhibits an excellent SSC resistance in sour environments. The steel material according to the present disclosure comprises, in mass%, C : 0.15% to 0.45%, Si : 0.05% to 1.00%, Mn : 0.05% to...
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WO/2023/157975A1 |
The present invention provides: a component for vehicles having excellent fatigue strength; a steel pipe which enables the production of a component for vehicles having excellent fatigue strength; a method for producing this steel pipe; ...
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WO/2023/157765A1 |
The present invention provides a method for producing a grain-oriented electromagnetic steel sheet, the method preventing the occurrence of a secondary recrystallization defect at the edges of a product sheet in the sheet width direction...
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WO/2023/150852A1 |
The present invention pertains to the fields of material engineering and nanotechnology. More specifically, the invention discloses a premix useful for improving the dispersion of nanoparticles in diverse materials, including, inter alia...
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WO/2023/151301A1 |
The present invention relates to the technical field of steel production. Disclosed are a wear-resistant steel and a production method therefor. The wear-resistant steel comprises the following chemical components in percentage by mass: ...
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WO/2023/148199A1 |
The invention relates to a method of producing a hot dip-coated high-strength steel strip with plasticity brought about by microstructural transformation, comprising the following steps: (i) producing a hot-rolled steel strip consisting ...
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WO/2023/149374A1 |
This hot-rolled steel sheet has a desired chemical composition and a metal structure, wherein: the average spherical equivalent radius of alloy carbide in ferrite is 0.5-5.0 nm (exclusive of 5.0); the average number density is at least 3...
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WO/2023/149248A1 |
Provided is a non-oriented electromagnetic steel sheet that offers low high-frequency iron loss without the addition of a large amount of an alloy element such as Cr for reducing magnetic flux density and without reducing the sheet thick...
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WO/2023/149249A1 |
Provided is a non-oriented electromagnetic steel sheet having low iron loss at high frequencies without the addition of a large amount of an alloy element such as Cr, which would reduce magnetic flux density, and without a reduction in t...
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WO/2023/149287A1 |
The purpose of the present invention is to suppress ridging, which presents a problem when handling steel containing a large amount of alloy elements such as Si and Al in a slow hot-rolling process. Provided is a method for manufacturing...
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WO/2023/149269A1 |
Provided is a non-oriented electromagnetic steel sheet demonstrating low iron loss at high frequencies, without adding a large amount of an alloy element such as Cr that reduces the magnetic flux density, or reducing sheet thickness that...
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