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WO/2023/248556A1 |
Provided is a steel that is for high-frequency hardening, that has excellent cold forging properties, and with which it is possible to omit annealing prior to cold forging and omit heat treatment for thermal refining prior to high-freque...
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WO/2023/246899A1 |
The present invention provides a steel and a manufacturing method therefor. The steel comprises the following components in percentage by mass: C: 0.01-0.10%; Si: ≤0.2%; Mn: 0.5-2.0%; P: ≤0.02%; S: ≤0.003%; Al: 0.01-0.08%; N: ≤0....
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WO/2023/246737A1 |
Disclosed in the present invention are a 1300-MPa-grade-or-higher cold-rolled steel sheet and a manufacturing method therefor. The cold-rolled steel sheet comprises Fe and inevitable impurity elements, and further comprises the following...
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WO/2023/246939A1 |
Disclosed in the present invention is a high-strength and high formability cold-rolled hot-galvanized strip steel, comprising a substrate and a zinc coating plated on the substrate. The substrate comprises Fe and inevitable impurities, a...
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WO/2023/248861A1 |
Provided are a method for producing an electromagnetic steel sheet having excellent magnetic characteristics, and a cold-rolled sheet used in the method. This method involves heating, at 1,300 °C or lower, a steel slab which contains, b...
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WO/2023/246465A1 |
Disclosed in the present invention are a martensitic heat-resistant steel for use at 630ºC or more and a preparation method therefor, which belong to the technical field of metal materials. The heat-resistant steel comprises, in percent...
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WO/2023/245886A1 |
The present invention relates to a normalizing heat treatment production process, comprising the steps of: feeding a slab of a steel plate into a heating furnace for heating, wherein the final temperature before the slab is discharged ou...
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WO/2023/241546A1 |
A highly formable and easily phosphated high-manganese cold-rolled steel plate having the tensile strength of 1000-1600 MPa, and a manufacturing method therefor. The steel plate is of a matrix face-centered cubic and surface body-centere...
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WO/2023/243533A1 |
Provided is an Fe-Mn alloy having low magnetic susceptibility and excellent workability. The Fe-Mn alloy contains, in mass%, more than 30.0% to 35.0% of manganese (Mn), 1.0% to 8.0% of aluminum (Al), 0.5% to 1.5% of carbon (C), 5.0% to 1...
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WO/2023/240850A1 |
The present invention relates to a 960 MPa grade ultrahigh-strength steel plate with marine fouling resistance, which steel plate is characterized by comprising the following chemical components in percentages by weight: 0.03-0.12% of C,...
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WO/2023/241574A1 |
Disclosed is a method for manufacturing a low-magnetostriction oriented silicon steel plate, comprising the steps of: (a) smelting and casting; (b) heating; (c) normalizing; (d) cold rolling; (e) decarburization annealing; (f) finished p...
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WO/2023/241677A1 |
A hydrogen induced cracking-resistant cold-rolled hot-dip galvanized ultra-high-strength dual-phase steel, comprising a substrate and a galvanized layer plated on the substrate, wherein the substrate contains Fe and inevitable impurity e...
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WO/2023/241666A1 |
The present invention provides a hot-rolled strip steel and a manufacturing method therefor. The hot-rolled strip steel comprises the following components, in percentages by mass: 0.04-0.15% of C, Si≤0.50%, 0.30-2.00% of Mn, 1.5-4.5% o...
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WO/2023/241631A1 |
Disclosed in the present invention are a 800MPa-grade high-hole-expansion hot-dip galvanized steel plate and a manufacturing method therefor. The steel plate comprises a substrate and a hot-dip galvanizing layer plated on at least one su...
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WO/2023/241665A1 |
Disclosed in the present invention are a hot-rolled strip steel and a manufacturing method therefor. The hot-rolled strip steel comprises the following components, in percentages by mass: 0.04-0.09% of C, Si≤0.50%, 0.10-1.50% of Mn, Pâ...
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WO/2023/238851A1 |
The present invention provides an austenitic stainless alloy material which has excellent creep strength and excellent stress relaxation cracking resistance. An austenitic stainless alloy material according to the present disclosure cont...
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WO/2023/239198A1 |
The present invention relates to an ultra high strength steel sheet and to a method for manufacturing same and, more specifically, to a steel sheet having excellent elongation and hole expansion ratio, as well as excellent strength, and ...
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WO/2023/234700A1 |
The present invention pertains to a non-quenched and tempered steel wire rod with improved machinability and toughness, and a method for manufacturing same. This non-quenched and tempered steel wire rod contains, in mass%, 0.3-0.5% of C,...
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WO/2023/234508A1 |
The present invention relates to a hot stamping component, and provides a hot stamping component comprising: a base metal; a decarburization layer arranged on the base metal; and an internal oxide layer arranged on the decarburization la...
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WO/2023/234632A1 |
A method for manufacturing a non-oriented electrical steel sheet, according to an embodiment of the present invention, comprises the steps of: first hot-rolling of each of a first steel material and a second steel material which contain ...
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WO/2023/231981A1 |
Disclosed is a high-strength petroleum pipe casing, which contains Fe and inevitable impurity elements, and further contains the following chemical elements in percentage by mass: 0.06-0.15% of C, 0.3-0.5% of Si, 1.5-2.2% of Mn, 0.002-0....
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WO/2023/233734A1 |
Provided is a high-strength steel sheet for sour gas equipment that, without placing limitations on the maximum hardness of a surface layer portion, has a pH of 3.5 or greater, has an H2S partial pressure of 0.003-1 bar, and has excellen...
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WO/2023/234502A1 |
The present invention provides an ultra-high strength cold-rolled steel sheet having high strength and elongation through the control of microstructures and a manufacturing method therefor. According to an embodiment of the present inven...
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WO/2023/233036A1 |
According to the invention a high strength, cold rolled steel flat product with reduced sensitivity to hydrogen embrittlement comprises a steel substrate which, in % by mass, consists of C: 0.20 to 0.40 %, Mn: 1.50 to 3.00 %, Si: 0.90 to...
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WO/2023/234525A1 |
Disclosed in the specification are: an austenite stainless steel having high strength, high ductility, and improved corrosion resistance while realizing ultra-fine grain characteristics; and a manufacturing method therefor. An austenite ...
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WO/2023/233186A1 |
A High Manganese hot rolled steel having a composition comprising of the following elements 0.8 % ≤ Carbon ≤ 1.3 %, 9.5 % ≤ Manganese ≤ 22%,0.01% ≤ Silicon ≤ 3%, 0.01% ≤ Aluminum ≤ 3%, 0.03 % ≤ Phosphorus ≤ 0.1%, 0.03...
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WO/2023/234337A1 |
This hot-stamp formed article has a prescribed chemical composition, and at a location 1/4 of the sheet thickness from the surface thereof and in a prior-austenite texture, the maximum pole density of an orientation group, expressed by E...
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WO/2023/233853A1 |
The present invention provides a steel material with which it is possible to achieve excellent toughness in the HAZ near a fusion line subjected to high-heat-input welding. Provided is a steel sheet for high-heat-input welding, said stee...
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WO/2023/234509A1 |
The present invention provides a hot stamping part, which comprises: a base material; a decarburized layer disposed on the surface of the base material; and an inner oxide layer disposed on the surface of the decarburized layer, wherein ...
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WO/2023/233980A1 |
Provided are a hot-rolled steel sheet and square steel tube having excellent strength and low-temperature toughness, methods for manufacturing these, and a building structure.　The hot-rolled steel sheet has a prescribed composition, an...
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WO/2023/234503A1 |
An ultra-high strength cold-rolled steel sheet of the present invention comprises, in weight%, 0.23% to 0.40% of carbon (C), 0.05% to 1.0% of silicon (Si), 0.5% to 3.0% of manganese (Mn), 0.01% to 0.12% of vanadium (V), 0.01% to 0.3% of ...
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WO/2023/234501A1 |
According to one aspect of the present invention, provided is a hot stamping part comprising a steel sheet that includes: 0.26-0.40 wt% of carbon (C); 0.02-2.0 wt% of silicon (Si); 0.3-1.60 wt% of manganese (Mn); at most 0.03 wt% of phos...
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WO/2023/234702A1 |
The present invention relates to a non-quenched and non-tempered steel wire rod having improved machinability and toughness and to a method for manufacturing same, the non-quenched and non-tempered wire rod, according to the present inve...
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WO/2023/233090A1 |
The invention relates to a method for manufacturing a metal sheet having a final thickness of between 6 and 50 mm, the method comprising the steps of: casting a rolling slab made of aluminium alloy having the following composition in % b...
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WO/2023/228523A1 |
Provided is a pipeline steel that is a low-alloy steel; that exhibits a satisfactory corrosion resistance with respect to low-purity liquids that have performed the separation and recovery of thermal power plant exhaust gas and/or with r...
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WO/2023/229241A1 |
The present invention relates to a device for improving low-temperature toughness of a steel pipe expansion part, the device including: a roller part provided under a steel pipe base material to rotate the steel pipe base material; a fir...
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WO/2023/228783A1 |
Provided is a martensitic stainless steel material having high strength and excellent corrosion resistance in corrosive environments containing SOx or NOx. This martensitic stainless steel material satisfies the chemical composition desc...
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WO/2023/228784A1 |
Provided is a martensitic stainless steel material which has high strength and excellent corrosion resistance in a corrosive environment in which SOx and NOx are included. A martensitic stainless steel material according to the present d...
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WO/2023/229968A1 |
New aluminum alloys are disclosed. The new aluminum alloys may include from 1.05 to 1.55 wt. % Si, from 0.85 to 2.10 wt. % Mg, from 0.15 to 0.75 wt. % Cu, from 0.20 to 0.90 wt. % Fe, from 0.5 to 1.5 wt. % Mn, from 0.01 to 0.15 wt. % Ti, ...
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WO/2023/229432A1 |
The present invention relates to a non-quenched and tempered steel rod wire with improved machinability and toughness, and a method for manufacturing same. The non-quenched and tempered steel rod wire according to the present invention c...
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WO/2023/229112A1 |
The present invention relates to: a carbon-coated steel material having oxidation resistance, sour resistance, and hydrogen induced cracking resistance, which can be formed by using a process for the heat treatment of a steel material; a...
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WO/2023/224218A1 |
The present invention relates to: a copper-nickel-silicon-manganese-tin (Cu-Ni-Si-Mn-Sn)-based copper alloy material having excellent strength, electrical conductivity, and bending workability; and a method for manufacturing same.
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WO/2023/223744A1 |
The purpose of the present invention is to provide a sulfuric acid-resistant hot-rolled thick steel sheet that has a sheet thickness of 6.0-14.0 mm and a tensile strength of not less than 490 MPa, and a production method therefor.　Prov...
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WO/2023/223694A1 |
The present invention provides a steel sheet which has both high strength and excellent toughness at low temperatures, while having excellent productivity. The present invention provides a steel sheet which has a specific component compo...
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WO/2023/225011A1 |
New 7xxx aluminum alloys are disclosed. The new 7xxx aluminum alloys may comprise from 5-10 wt. % Zn, 1-3 wt. % Mg, 1-3 wt. % Cu, a thickness of at least 2 inches, from 10% to 40% recrystallized grains, and an average grain size of at le...
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WO/2023/224200A1 |
The present invention provides a manufacturing method for an ultra-high strength galvanized steel sheet with excellent weldability, the method comprising a step of annealing a cold-rolled steel sheet in an annealing furnace, wherein the ...
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WO/2023/223078A1 |
A martensitic steel sheet comprising of the following elements 0.08 % ≦ C ≦ 0.14 %; 1.95 % ≦ Mn ≦ 2.6 %; 0.1% ≦ Si ≦ 0.8 %;.01% ≦ Al ≦ 0.1 %; 0.001% ≦ Ti ≦ 0.1%; 0.0001% ≦ B ≦ 0.05%; 0% ≦ S ≦ 0.09%; 0% ≦ P â...
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WO/2023/219146A1 |
The present invention provides a thick steel sheet having a high strength and excellent multi-layer welded joint CTOD characteristics even when the sheet thickness is over 100 mm. The steel sheet has a prescribed component composition. A...
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WO/2023/218229A1 |
A hot rolled steel sheet having a composition comprising of the following elements 0.060%≤Carbon≤0.1%, 1.4%≤Manganese≤1.8%, 0.3%≤Silicon≤0.8%, 0.01%≤ Aluminum≤0.1%, 0.01%≤Niobium≤0.09%, 0.01%≤Titanium≤0.09%, 0.002...
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WO/2023/212972A1 |
A low-yield-ratio, easy-to-weld and weather-proof bridge steel and a manufacturing method therefor. The present invention comprises the following components in percentages by mass: C: 0.051-0.080%, Si: 0.20-0.50%, Mn: 1.20-1.50%, P≤0.0...
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