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WO/2023/029630A1 |
Disclosed in the present invention are a steel rail in which abrasion and rolling contact fatigue are well coupled and a production method therefor. The chemical components of the steel rail comprise, in percentages by weight: 0.75-0.88%...
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WO/2023/033478A1 |
An aspect of the present invention may provide: a hot-rolled steel sheet that is excellent in terms of yield strength, vibration damping ratio, weldability, and weld site-low temperature toughness, and thus has physical properties suitab...
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WO/2023/029282A1 |
A production method for a high-strength steel plate for engineering machinery. The components of the steel and the weight percentages thereof are as follows: C＝0.10％-0.25％, Si ≤ 0.80％, Mn＝0.80％-1.20％, P ≤ 0.010％, S ...
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WO/2023/031647A1 |
A hot rolled steel sheet having a composition comprising of the elements, 0.02%≤Carbon≤0.2%, 3%≤Manganese≤9%, 0.2%≤Silicon≤1.2%, 0.9%≤Aluminum≤2.5%, 0%≤Phosphorus≤0.03%, 0%≤Sulfur≤ 0.03%, 0%≤Nitrogen≤0.025%, 0...
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WO/2023/027528A1 |
The present invention relates to: a cold rolled steel sheet having excellent weldability, strength, and formability; and a method for manufacturing same.
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WO/2023/024678A1 |
The present disclosure belongs to the field of metal materials. Disclosed are a high-strength steel cord with a low wire breakage rate, and a rolling method and the use thereof. The chemical components of the steel cord may comprise Nb, ...
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WO/2023/025635A1 |
The invention relates to a cold-rolled flat steel product having a tensile strength Rm of at least 780 MPa, a yield point RP0.2 of at least 440 MPa and not more than 600 MPa and an elongation at break A80 of at least 18%, and to a method...
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WO/2023/027129A1 |
The present invention addresses the problem of providing: a ferritic stainless steel which has a wide adequate quenching temperature range, while having high hardness and excellent corrosion resistance after quenching, and which serves a...
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WO/2023/023843A1 |
A process for manufacturing a vehicle part from steel material, such as Mn22B5 steel material, using a single transfer press is provided. The process includes stamping, trimming, and piercing the steel material in the transfer press at r...
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WO/2023/027778A1 |
A steel sheet has a chemical composition containing a predetermined amount of C, Si, Mn, Cu, P, S, Al, and N, and optionally a predetermined amount of one or more selected from the group consisting of Ti, B, Nb, Cr, V, Mo, Ni, As, Sb, Sn...
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WO/2023/019768A1 |
A large-specification long-service-life high-carbon bearing steel bar and a preparation method therefor. The large-specification long-service-life high-carbon bearing steel bar comprises the following components: 0.93-1.05 wt% of C, 1.20...
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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/2023/022134A1 |
The present disclosure provides a configuration by which a motor core can be degreased prior to stress-relief annealing without the provision of a heating device or a vacuum device dedicated for degreasing. A heat treatment furnace accor...
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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/2023/018081A1 |
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/2023/015608A1 |
A high strength, high conductivity, intergranular corrosion-resistant aluminum alloy and a preparation method therefor. The high strength, high conductivity, intergranular corrosion-resistant aluminum alloy comprises the following compon...
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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/2023/016965A1 |
The present application relates to a method and a device (1) for producing a multiphase steel strip (2) having a tensile strength of at least 780 MPa, preferably having a tensile strength of at least 900 MPa, wherein: first, a strand mat...
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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/2023/010655A1 |
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/2023/014330A1 |
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/2023/013174A1 |
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/2023/011330A1 |
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/2023/013956A1 |
An aluminum alloy extruded material and an electronic device housing comprising same are disclosed. According to various embodiments, the aluminum alloy extrusion material comprises aluminum, zinc, magnesium, and copper, and the amounts ...
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WO/2023/011732A1 |
The present invention relates to an optical element (10) for use with a reaction chamber (70), in particular a reaction chamber (70) of a thermal laser evaporation system, the reaction chamber (70) having a chamber wall (72), with a flan...
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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/2023/008163A1 |
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/2023/008514A1 |
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/2023/007952A1 |
Provided is a wound core for achieving low transformer iron loss and having excellent magnetic characteristics without the use of two or more kinds of raw materials of different magnetic characteristics. This wound core: is formed from...
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WO/2023/008513A1 |
This non-oriented electrical steel sheet: contains, as a chemical component, 1.0–5.0 mass% of silicon; has a sheet thickness of 0.10–0.35 mm; and has an average crystal grain size of 30–200 μm. Moreover, a value X, defined as X = ...
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WO/2023/002812A1 |
A steel sheet comprising 0.04-0.16 mass% of C, 0.10-0.50 mass% of Si, 0.60-1.60 mass% of Mn, 0.005-0.030 mass% of P, 0.015-0.050 mass% of Al, 0.005-0.020 mass% of Ti, 0.0005-0.0025 mass% of Ca, 0.0008-0.0025 mass% of O, 0.0005-0.0020 mas...
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WO/2023/000584A1 |
The present invention relates to the technical field of steel production. Disclosed are a 1000 MPa-grade quenched and tempered hydroelectric steel plate and a production method therefor, comprising the following chemical components in pe...
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WO/2023/001835A1 |
The invention relates to a high strength cold rolled steel strip or sheet having a steel composition comprising (in wt. %) 0.15 – 0.25 C, 0.3 – 0.5 Si, 2.0 – 3.0 Mn, 0.5-1.0 Al, 0.005 – 0.5 Cr, a thermal stability θ > 0, where ...
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WO/2023/001693A1 |
The invention relates to a method for producing a cold-rolled flat steel product having a bainitic basic structure and to a correspondingly cold-rolled flat steel product having a bainitic basic structure.
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WO/2023/003188A1 |
The present invention relates to steel suitable as a material for automobiles and, specifically, to a high-strength steel sheet having excellent hole expandability and ductility, and a manufacturing method therefor. The high-strength ste...
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WO/2023/001137A1 |
The present invention belongs to the technical field of OLEDs, and particularly relates to a silver-based alloy, a preparation method therefor, a silver alloy composite thin film and the use thereof. The silver-based alloy provided in th...
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WO/2023/286204A1 |
Provided is ferritic heat-resistant steel having a chemical composition that is, in terms of mass%, 0.07-0.14% C, 0.15-0.35% Si, 0.30-0.55% Mn, not more than 0.0250% P, not more than 0.0030% S, 0.15-0.35% Ni, 8.0-9.7% Cr, 0.20-0.60% Mo, ...
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WO/2023/286536A1 |
The present invention provides a thick steel sheet which has both excellent fatigue crack propagation resistance and total elongation, while exhibiting excellent elongation in the sheet thickness direction. A thick steel sheet which has ...
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