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WO/2023/022445A1 |
The present invention relates to: a steel material for hot forming, used for a vehicle and the like; a hot-formed member; and a method for manufacturing same. In the method, when the formed steel material is temper rolled, rolling pressu...
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WO/2023/023083A1 |
Embodiments relate to cold-worked steel alloys with improved strength, hardness and corrosion resistance useful for creating products, such as exterior vehicle body components. Processes for preparing cold-worked steel alloys are also de...
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WO/2023/020931A1 |
The invention relates to a flat steel product for hot working, a worked steel sheet part, a process for manufacturing the flat steel product and a process for manufacturing the worked steel sheet product, the flat steel product and the s...
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WO/2023/022130A1 |
A precipitation hardening martensitic stainless steel which contains specific alloy components, with the balance being made up of Fe and unavoidable impurities, while satisfying formula (1) and having a δ cal. (%) of 1.0 to 9.0 as calcu...
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WO/2023/022351A1 |
The present invention provides austenitic stainless steel comprising, by wt%, 0.005-0.03% of C, 0.1-1% of Si, 0.1-2% of Mn, 0.01-0.4 of Cu, 0.01-0.2 of Mo, 6-9% of Ni, 16-19% of Cr, 0.01-0.2% of N, and the remainder of Fe and inevitable ...
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WO/2023/021922A1 |
The purpose of the present invention is to provide a resistance spot welding joint and a resistance spot welding method therefor. The present invention is a resistance spot welding joint by which two or more steel plates, including at le...
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WO/2023/022222A1 |
Provided is a steel material that exhibits an excellent hydrogen embrittlement resistance after the execution of a pickling treatment and that exhibits an excellent lubricant adhesiveness. The steel material according to the present embo...
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WO/2023/019690A1 |
Disclosed is a ferrite-pearlite Q345qD bridge steel extra-thick plate and a preparation method therefor, relating to the field of steel production technology. The chemical composition and the mass percentages thereof are as follows: C: 0...
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WO/2023/022129A1 |
The present invention provides a precipitation-hardening martensitic stainless steel that: contains, by mass, 0.01-0.07% of C, 1.0-2.5% of Si, 0.1-2.5% of Mn, 0.04% or less of P, 0.0020% or less of S, 4.0-10.0% of Ni, 11.0-17.0% of Cr, 0...
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WO/2023/020932A1 |
The invention relates to a flat steel product for hot working, a worked steel sheet part, a process for manufacturing the flat steel product and a process for manufacturing the worked steel sheet product, the flat steel product and the s...
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WO/2023/016219A1 |
The present invention provides a high-toughness, cold-worked die steel, the components of which are as follows: 0.9wt％-0.94wt％ of C, 1.35wt％-1.45wt％ of Si, 0.4wt％-0.6wt％ of Mn, ≤0.02wt％ of P, ≤0.003wt％ of S, 7.4wt％-...
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WO/2023/018081A1 |
The present invention relates to a hot-rolled steel sheet, which can be suitably applied to an automobile chassis structure member and the like, and, more specifically, to a high-strength hot-rolled steel sheet having excellent formabili...
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WO/2023/018101A1 |
The present invention relates to high-hardness bulletproof steel having excellent low-temperature toughness, and a manufacturing method therefor. More specifically, the present invention relates to high-hardness bulletproof steel having ...
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WO/2023/018270A1 |
The present invention relates to a steel sheet having high strength and high toughness, and a manufacturing method therefor, and, more specifically, to a steel sheet, which has high strength and high toughness and can be used for a vehic...
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WO/2023/018195A1 |
An embodiment of the present invention provides a non-oriented electrical steel sheet and a method for manufacturing same. The non-oriented electrical steel sheet comprises, by wt%, 2.5-4% of Si, 0.1-1.0% of Mn, 0.001-0.005% of S, 0.002-...
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WO/2023/017829A1 |
Provided is a steel material which has excellent machinability and in which cracking during hot working and melt cracking during induction hardening can be suppressed, and which has excellent fatigue strength when used as a component for...
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WO/2023/017844A1 |
This joined part includes: a first steel member; a second steel member; and a joined portion that is formed at a portion where the first steel member adjoins the second steel member and that includes a welding metal and a thermally affec...
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WO/2023/018028A2 |
Disclosed in the present specification are steel and a steel wire, which are for a spring, and manufacturing methods therefor, the steel and the steel wire having excellent resistance to permanent deformation by having increased in-mater...
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WO/2023/010655A1 |
Disclosed in the present invention are a wear-resistant and corrosion-resistant steel plate for a sediment transport pipeline and a preparation method therefor, which belong to the technical field of alloy steel. The steel plate comprise...
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WO/2023/012539A1 |
The invention deals with a top cover of battery pack comprising a metallic coated steel sheet wherein said metallic coating is based on aluminium and comprises optionally silicon and unavoidable impurities.
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WO/2023/012499A1 |
The invention deals with a top cover of battery pack comprising a metallic coated steel sheet wherein said metallic coating is based on aluminium and comprises optionally silicon and unavoidable impurities.
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WO/2023/012906A1 |
The present invention provides a forged steel roll for cold rolling in which the Vickers hardness Hv at 400°C is 400 or greater.
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WO/2023/014330A1 |
The invention particularly relates to a steel composition comprising of the following; carbon (C) in a ratio of 0.320-0.400% by weight, nitrogen (N) in a ratio of 0.007% maximum by weight, silicon (Si) in a ratio of 0.250-0.300% maximum ...
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WO/2023/014332A1 |
The invention particularly relates to a micro-alloyed steel composition comprising; carbon (C) in the ratio of 0.380-0.450% by weight, nitrogen (N) in a ratio of 0.007% maximum by weight, silicon (Si) in a ratio of 0.250-0.300% by weight...
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WO/2023/012881A1 |
The present invention addresses the problem of imparting a stainless steel sheet having good corrosion resistance with magnetic properties sufficient to enable said sheet to be held or swung by magnetic forces. To this end, a stainless s...
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WO/2023/013876A1 |
According to one aspect of the present invention, it is possible to provide a tailor welded blank, a hot press formed part, and a method for manufacturing same, the tailor welded blank having a weld part that can effectively prevent dete...
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WO/2023/014411A1 |
Methods for improving a toughness and a strength of a stainless steel material are described herein. For example, a high strength stainless steel material can comprise at least 11 wt.% Cr, between 0.01 wt.% and 1.0 wt.% Ni, more 0 wt.% M...
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WO/2023/013372A1 |
Provided is a high-strength steel sheet including a plate thickness center section and a surface layer soft section formed on one or both sides of the plate thickness center section, wherein: the plate thickness center section has a pres...
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WO/2023/012538A1 |
The invention deals with a top cover of a battery pack comprising a metallic coated steel sheet wherein said metallic coating is topped by an organic coating and wherein said organic coating has two layers, the first layer of the organic...
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WO/2023/013174A1 |
This steel wire for a spring is provided with a steel main body that has a linear shape, and an oxide layer that covers the outer peripheral surface of the main body. The steel constituting the main body contains 0.6-0.7 mass% C, 1.7-2.5...
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WO/2023/012500A1 |
The invention deals with a top cover of a battery pack comprising a metallic coated steel sheet wherein said metallic coating is topped by an organic coating and wherein said organic coating has two layers, the first layer of the organic...
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WO/2023/011330A1 |
The present application provides hot work die steel and a preparation method therefor, and a piston forging forming die and a preparation method therefor. The hot work die steel provided by the present application comprises the following...
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WO/2023/013353A1 |
The present invention provides an austenite-based stainless steel material containing, by mass, 0.024% or less of C, 1.00% or less of Si, 2.00% or less of Mn, 0.045% or less of P, 0.015% or less of S,10.0-15.0% of Ni, 15.0-22.0% of Cr, 2...
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WO/2023/008002A1 |
Provided is a steel sheet which has high strength and excellent delayed fracture resistance. Also provided is a method for producing this steel sheet. The steel sheet includes, in terms of mass%, C: 0.15% to 0.45%; Si: 1.5% or less; Mn...
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WO/2023/005965A1 |
Disclosed is a method for preparing an aluminum-silicon coated hot stamped steel part having a tensile strength of 1500 MPa or more, comprising the steps of: (1) cutting aluminum-silicon coated hot stamped steel into a material sheet, an...
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WO/2023/007833A1 |
Provided is a galvanized steel sheet that has a tensile strength of at least 590 MPa and less than 980 MPa, has excellent ductility, hole expandability, and local ductility, has excellent work-hardening properties, and has excellent dime...
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WO/2023/007876A1 |
This hot-rolled steel sheet has a prescribed chemical composition and metallographic structure, Pi/Ps is 1.2-2.0 in a region in which a sheet-thickness cross section parallel to the rolling direction is divided into three portions in the...
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WO/2023/008163A1 |
A steel sheet having a chemical composition comprising, in mass%, 0.030-0.200% of C, 0.050-0.500% of Si, 0.50-2.00% of Mn, not more than 0.030% of P, not more than 0.010% of S, 0.001-0.100% of Al, 0.0005-0.0080% of N, 0.0005-0.0080% of O...
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WO/2023/005416A1 |
Disclosed in the present invention are heavy hot-rolled H section steel with Z-direction performance and a production method therefor. The hot-rolled H section steel comprises the following chemical components: C, Si, Mn, Nb, Ti, N, B, A...
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WO/2023/008510A1 |
This non-oriented electromagnetic steel sheet has a chemical constitution that includes 1.0-5.0 mass% Si, the sheet thickness is 0.10-0.35 mm, the average crystal grain diameter is 30-200 μm, X1 value as defined by X1 = (2×B50L+B50C)/(...
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WO/2023/008670A1 |
Disclosed in an embodiment of the present invention is a steel sheet for hot pressing comprising 0.03-0.15 wt% of carbon (C), 0.1-1.5 wt% of silicon (Si), 1.0-2.0 wt% of manganese (Mn), 0.1 wt% or less of phosphorus (P), 0.01 wt% or less...
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WO/2023/006732A1 |
Steel sheet in hot rolled condition wherein the steel has a composition in millipercent or where so indicated in ppm: C: 1-50 ppm; Mn: max. 200; Si: max. 100; Al: 10-200; Ti: 46-100; Nb: max. 100; V: max. 100; P: max. 20; S: max. 20; N: ...
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WO/2023/008516A1 |
This steel sheet has a prescribed chemical composition and a tensile strength of at least 780 MPa and exhibits a ferrite area ratio of at least 5%, a ferrite + bainite total area ratio of 10-90%, a martensite + tempered martensite total ...
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WO/2023/008413A1 |
The purpose of the present invention is to provide a hot work tool steel having excellent high-temperature strength and toughness The present invention provides a hot work tool steel comprising, in mass%: 0.20% to 0.60% of C; 0.10% or mo...
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WO/2023/005166A1 |
Disclosed are a neodymium-iron-boron magnetic material, and a preparation method therefor and an application thereof. The neodymium-iron-boron magnetic material comprises the following components: 28-33 wt% of R, R being a rare earth ele...
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WO/2023/005165A1 |
Disclosed are a neodymium-iron-boron magnet material and a preparation method therefor and an application thereof. The neodymium-iron-boron magnet material comprises: 28-33wt.% of R, R being a rare earth element and comprising Nd; 27-31....
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WO/2023/008514A1 |
This non-oriented electrical steel sheet: contains, as a chemical component, 1.0–5.0 mass% of silicon; has a plate thickness of 0.10–0.35 mm; and has an average crystal grain size of 30–200 μm. Moreover, a value X1, defined as X1 ...
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WO/2023/008737A1 |
The present invention relates to a stainless steel for a fuel cell separator and a method of manufacturing same and, specifically, to a stainless steel having low contact resistance as a material for a fuel cell separator, a definition a...
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WO/2023/007953A1 |
Provided is a wound 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. A wound core according to the present inv...
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WO/2023/006442A1 |
The present invention relates to a tubular stabilizer bar (1) for a vehicle chassis, produced from a metal tubular body, the tubular stabilizer bar comprising: - a torsion spring portion (2); - two legs (3, 3') bent from the torsion spri...
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