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WO/2023/285867A1 |
The invention deals with a process for manufacturing a steel part, comprising the following successive steps: providing a steel sheet having a composition comprising by weight percent: C: 0.05 – 0.25 %, Mn: 3.5 – 8 %, Si 0.1 - 2%, Al...
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WO/2023/286488A1 |
A continuous casting method for steel that simultaneously achieves suppression of erosion of a sliding nozzle plate of a tundish and a ladle and prevention of adhesion of inclusions to a discharge hole of the sliding nozzle plate, as wel...
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WO/2023/284128A1 |
A low-cost high energy welding-resistant 420 MPa-grade bridge steel and a production method therefor, relating to the technical field of steel production, the chemical components and the mass percentages thereof being as follows: C: 0.03...
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WO/2023/282072A1 |
When a non-oriented electrical steel plate is manufactured by hot rolling a slab including predetermined amounts of C, Si, Mn, Al, N and Cr, annealing the hot-rolled plate, cold rolling, and finish annealing in a continuous annealing fur...
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WO/2023/282071A1 |
In the present invention, when a slab containing prescribed amounts of C, Si, Mn, Al, N, and Cr is hot rolled, hot-rolled-sheet annealed, cold rolled, and finishing-annealed in a continuous annealing furnace to manufacture a non-oriented...
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WO/2023/282196A1 |
Provided are: a high-strength non-oriented electromagnetic steel sheet having good fatigue characteristics suitable for a rotor core; and a non-oriented electromagnetic steel sheet having excellent magnetic characteristics suitable for a...
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WO/2023/281035A1 |
The invention relates to a coated and optionally temper-rolled dual phase steel strip with a tensile strength Rm of 580 - 720 MPa and a yield strength Rp of 310 - 430 MPa, having improved formability. The invention also relates to a meth...
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WO/2023/282477A1 |
Disclosed in the specification are ultrafine austenitic stainless steel that simultaneously meets a high strength, a high elongation, and a high yield ratio, and a manufacturing method thereof. The austenitic stainless steel according to...
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WO/2023/282194A1 |
Provided is a non-oriented electromagnetic steel sheet having favorable fatigue characteristics that are suitable for rotor cores, and having excellent magnetic characteristics that are suitable for stator cores.　The non-oriented elect...
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WO/2023/282195A1 |
Provided is a non-oriented electromagnetic steel sheet having good fatigue characteristics suitable for a rotor core, and excellent magnetic characteristics suitable for a stator core.　The non-oriented electromagnetic steel sheet has a...
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WO/2023/281022A1 |
The disclosure relates to a process for the manufacture of a steel component comprising a fine-grained martensite structure component. The process comprises the steps of providing a steel component having an initial steel composition; in...
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WO/2023/282197A1 |
Provided are: a high-strength non-oriented electromagnetic steel sheet having favorable fatigue characteristics suitable for a rotor core; and a non-oriented electromagnetic steel sheet having excellent magnetic characteristics suitable ...
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WO/2023/276429A1 |
Provided is a high strength steel sheet with excellent cryogenic toughness and ability to inhibit the occurrence of brittle cracks, presupposing production by an abridged process that utilizes direct quenching and tempering. This steel s...
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WO/2023/274218A1 |
The present invention relates to the field of hot rolled pipeline steel, and discloses a continuous hot-rolled high-strength pipeline steel coil having an extremely high thickness specification, the mass percentages of chemical component...
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WO/2023/272873A1 |
Disclosed are a plastic mold steel plate and a production method therefor. The production method comprises: heating a steel billet which has a soaking section having a temperature of 1210 to 1250°C; rolling into a steel plate at an init...
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WO/2023/277169A1 |
The present invention provides a method for manufacturing an oriented electromagnetic steel sheet with which it is possible to manufacture, in a stable manner, a low-iron-loss oriented electromagnetic steel sheet with little variation in...
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WO/2023/274281A1 |
Disclosed in the present invention are TRIP steel and a preparation method therefor, a cold-rolled steel sheet, and a hot-dip galvanized steel sheet, wherein the TRIP steel comprises the following chemical components, in percentages by m...
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WO/2023/276516A1 |
Provided are a high-strength steel sheet and a method for producing the same. A high-strength steel material according to the present invention has a particular component composition, wherein: the metal structure of the high-strength ste...
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WO/2023/277170A1 |
Provided is a grain-oriented electromagnetic steel sheet manufacturing method by which a low-iron-loss grain-oriented electromagnetic steel sheet having little variation in iron loss can be stably manufactured using a tandem rolling mill...
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WO/2023/272609A1 |
The invention discloses a high-precision seamless pipe having a special-shaped hexagonal cross-section with a circle inside for use in nuclear power, which is made of stainless steel or a corrosion-resistant alloy having an elongation ra...
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WO/2022/270642A1 |
A method for manufacturing a knife blade having a multilayer structure is provided. The method for manufacturing a knife blade having a multilayer structure comprises the steps of: i) providing a base material including carbon steel; ii)...
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WO/2022/267173A1 |
High-strength, low-temperature-resistant H-shaped steel for marine engineering tempering treatment and a preparation method therefor. The chemical components of the H-shaped steel comprise according to percentage by weight: C: 0.09-0.15,...
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WO/2022/269021A1 |
The invention relates to a method for producing a flat steel product (10) having a flat steel base (12) and a zinc- or aluminium-based metal coating (14) on at least one surface (16) of the flat steel base (12), said flat steel base (12)...
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WO/2022/270814A1 |
Disclosed in the present specification are: an austenitic stainless steel free of surface cracks in a bent portion and having excellent surface roughness; and a manufacturing method thereof. The austenitic stainless steel according to an...
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WO/2022/262020A1 |
A non-oriented silicon steel and a production method therefor. The production method: performing steelmaking according to 0.8-1.1% of Si and 0.2-0.4% of Mn, and making a blank without adding Sn and Sb; heating the casting blank to 1060-1...
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WO/2022/263887A1 |
Method for producing a steel part comprising by weight: 0.05% ≤ C ≤ 0.15%, 0.01% ≤ Si ≤ 1%, 1.2% ≤ Mn ≤ 2%, 0.1% ≤ Cr ≤ 2%, 0.001 ≤ Al ≤ 0.1%, 0.003% ≤ N ≤ 0.01%, 0 ≤ S ≤ 0.015%, 0 ≤ P ≤ 0.015%,0% ≤ Ni â...
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WO/2022/265453A1 |
The present invention relates to an ultra high strength steel sheet having a high yield ratio, and a method for manufacturing same and, more specifically, to a steel sheet having ultra high strength, a high yield ratio and excellent bend...
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WO/2022/262144A1 |
The present invention provides a preparation method for an annealing separating agent, an annealing separating agent, and a directional electromagnetic steel plate. The annealing separating agent obtained with the method is high in purit...
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WO/2022/265639A1 |
A steel alloy with unique and superior combinations of properties such as elevated temperature strength, oxidation resistance, thermal conductivity and wear resistance. Disclosed embodiments comprise or substantially consist of: C in an ...
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WO/2022/265289A1 |
The present invention relates to a machine structure wire rod, which is applicable to vehicles, construction components and the like, and a manufacturing method therefor, and to a wire rod having excellent drawability, and a method for m...
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WO/2022/258376A1 |
The invention relates to a method for producing a microalloyed steel, to a microalloyed steel, and to a combined casting/rolling installation. The combined casting/rolling installation (10) has a strand casting machine (15) with a mold (...
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WO/2022/259606A1 |
This steel wire is formed of a steel containing 0.5-0.7 mass% of carbon, 1-2.5 mass% of silicon, 0.3-1 mass% of manganese, and 0.5-2 mass% of chromium, the remaining portion being iron and unavoidable impurities. The steel wire has a wir...
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WO/2022/259697A1 |
According to the present invention, a steel sheet pile having high strength and high toughness is stably provided with high productivity. This steel sheet pile has: a predetermined component composition; a microstructure in which the are...
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WO/2022/255587A1 |
According to an aspect of the present invention, provided is a steel sheet for hot stamping, comprising 0.17-0.25 wt% of carbon (C), 0.3-1.0 wt% of silicon (Si), 0.6-1.0 wt% of manganese (Mn), 0.02 wt% or less of phosphorus (P), 0.01 wt%...
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WO/2022/255258A1 |
Provided is a method for producing a grain-oriented electromagnetic steel sheet which inhibits occurrence of ridging and which has a favorable shape. This method for producing a grain-oriented electromagnetic steel sheet comprises: heati...
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WO/2022/253216A1 |
A hot-rolled acid-pickled enameled steel having good deep drawing properties and a production method therefor. The chemical composition of the hot-rolled acid-pickled enameled steel comprises: C, N, S, Al, Mn, Si, P, Ti, and the balance ...
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WO/2022/255259A1 |
Provided is a method for manufacturing an oriented electrical steel sheet in which ridging does not occur, and which has a good shape. This method for manufacturing an oriented electrical steel sheet heats a steel slab containing, by mas...
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WO/2022/255013A1 |
Provided is a grain-oriented electrical steel sheet that has excellent transformer characteristics and achieves both low iron loss and low magnetostriction. According to the present invention, a grain-oriented electrical steel sheet has ...
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WO/2022/255437A1 |
This austenitic stainless steel material has a chemical composition comprising, by mass%, 0.20% or less of C, 2.0% or less of Si, 6.0-20.0% of Mn, 0.060% or less of P, 0.0080% or less of S, 10.0-18.0% of Cr, 4.0-12.0% of Ni, 0.01-0.30% o...
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WO/2022/255014A1 |
Provided is a grain-oriented electromagnetic steel sheet having excellent transformer characteristics and achieving both low iron loss and low magnetostriction. This grain-oriented electromagnetic steel sheet has a thermal strain region ...
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WO/2022/255727A1 |
Disclosed are a wire rod and a steel wire for a spring, a spring with improved strength and fatigue limit, and a method for manufacturing same. The disclosed wire rod for a spring with improved strength and fatigue limit, according to on...
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WO/2022/255172A1 |
The present invention provides a grain-oriented electromagnetic steel sheet having excellent transformer characteristics and achieving both low iron loss and low magnetostriction. In a magnetic flux density B-magnetostriction waveform λ...
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WO/2022/255223A1 |
An austenitic stainless steel which has a chemical composition that contains, in mass%, 0.002% to 0.020% of C, 0.10% to 0.60% of Si, 0.2% to 2.0% of Mn, 0.035% or less of P, 0.010% or less of S, 2.50% to 4.50% of Cu, 9.00% to 16.00% of N...
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WO/2022/250156A1 |
The present invention provides a method for producing a grain-oriented electromagnetic steel sheet, the method enabling the achievement of a grain-oriented electromagnetic steel sheet that exhibits excellent coating adhesion. A method fo...
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WO/2022/250168A1 |
This grain-oriented electromagnetic steel sheet has a base steel sheet, an oxide film, and a phosphoric-acid-based coating film. The phosphoric-acid-based coating film contains a first crystalline phosphorus oxide having a crystal struct...
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WO/2022/248103A1 |
The present invention relates to a system (1) and a method for thermomechanically rolling long steel semi-finished products (2), comprising: a first rolling device (5); a first thermomechanical sizing mill (8) arranged downstream of the ...
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WO/2022/250160A1 |
Provided is a method for producing a grain-oriented electrical steel sheet with which it is possible to obtain, in a stable manner, satisfactory coating characteristics along the entire length and the entire width of a steel sheet coil. ...
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WO/2022/250111A1 |
According to the present invention, an oriented electromagnetic steel sheet is manufactured by: heating, at a temperature of at least 1,300ºC, a steel slab containing, in terms of mass%, 0.02-0.10% of C, 2.5-5.5% of Si, 0.01-0.30% of Mn...
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WO/2022/250161A1 |
Provided is a method for producing a grain-oriented electrical steel sheet which makes it possible to stably produce a grain-oriented electrical steel sheet that has low iron loss and solves the problem of steel sheet cracking which occu...
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WO/2022/247855A1 |
The present invention discloses a steel for bolts, which contains the following chemical elements in percentage by mass in addition to Fe and unavoidable impurities: C: 0.37 to 0.45%; Si: 0.01 to 0.08%; Mn: 0.45 to 0.80%; Cr: 0.90 to 1.3...
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