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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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WO/2022/250067A1 |
Provided is a method for manufacturing a grain-oriented electromagnetic steel sheet having excellent uniformity in magnetic characteristics in a sheet width direction without causing an increase in manufacturing cost. In this invention, ...
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WO/2022/248102A1 |
The present application relates to a system (1) and a method for the thermomechanical rolling of long semifinished steel products (2), comprising a first rolling device (5); a second rolling device (7), arranged downstream of the first r...
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WO/2022/250163A1 |
Provided is an oriented electromagnetic steel sheet having a base steel sheet, an intermediate layer, and an insulating film, wherein: the intermediate layer is an oxidized film; the average film thickness of the oxidized film is 2-500 n...
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WO/2022/250112A1 |
In this invention, when manufacturing a grain-oriented electromagnetic steel sheet: a steel slab, which contains, by mass%, 0.02 to 0.10% of C, 2.5 to 5.5% of Si, 0.01 to 0.30% of Mn, 0.0010 to 0.040% of S, 0 to 0.040% of Se, 0.010 to 0....
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WO/2022/247752A1 |
1000 MPa grade magnetic yoke steel for manufacturing a rotor of a hydroelectric generator. Chemical components with wt% of said steel are: C: 0.15-0.25%, Si: 0.15-0.25%, Mn: 1.00-1.35%, P: ≤ 0.015%, S: ≤ 0.002%, B: 0.0010-0.0015%, Al...
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WO/2022/250162A1 |
The present invention provides: a grain-oriented electromagnetic steel sheet which exhibits good working accuracy during a roll-up process, while maintaining excellent magnetic characteristics; and a method for producing this grain-orien...
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WO/2022/250157A1 |
The present invention provides an oriented magnetic steel sheet that enables good machining precision during a rounding process, while maintaining an iron loss characteristic.　An oriented magnetic steel sheet manufacturing method where...
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WO/2022/250159A1 |
Provided is a method for manufacturing a grain-oriented electromagnetic steel sheet which has a defect-free, uniform, and highly adhesive coating over the entire width and entire length of a coil and which also exhibits excellent magneti...
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WO/2022/250158A1 |
The present invention aims to reduce the number of surface defects in grain-oriented electromagnetic steel sheets. During the production of grain-oriented electromagnetic steel sheets, a steel slab is heated prior to undergoing hot rolli...
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WO/2022/250113A1 |
In this method for manufacturing a grain-oriented electromagnetic steel sheet, the grain-oriented electromagnetic steel sheet is manufactured by: hot-rolling a steel slab, which has a component composition comprising, by mass%, 0.02 to 0...
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WO/2022/243461A1 |
Method for manufacturing a high strength steel plate and high strength steel plate The present invention relates to a method for manufacturing a high strength steel plate, comprising the step of providing a hot-rolled steel plate, the st...
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WO/2022/242859A1 |
The present invention relates to a method for manufacturing a high strength steel plate, comprising the steps of providing a hot-rolled steel plate, heating (10) the steel plate to an austenitisation temperature range, quenching (12) the...
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WO/2022/244707A1 |
This high-strength hot-rolled steel plate has a specific component composition. The steel structure has, as main phases, martensite and bainite having a total area ratio of 80-100%. The total area ratio of martensite in the bainite is 2-...
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WO/2022/243397A1 |
The invention relates to a flat steel product for hot forming composed of a steel substrate (13) composed of a steel comprising 0.1-3% by weight of Mn and optionally up to 0.01% by weight of B and an Al-based protective coating (15) appl...
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WO/2022/245064A1 |
The present invention relates to: a plated steel sheet which is for hot forming, has excellent hydrogen embrittlement resistance, and includes an Al-based plating layer formed on the surface of a base steel sheet, wherein the average Ni ...
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WO/2022/243000A1 |
:A stainless steel wire is provided. The stainless steel wire has a tensile strength of more than 1950MPa, and the stainless steel wire has an arc height of less than 60 mm/m. The invention stainless steel wire has a higher tensile stren...
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WO/2022/242742A1 |
Disclosed in the present invention is a high-strength seamless steel tube resistant to carbon dioxide corrosion. In addition to containing Fe and inevitable impurities, the seamless steel tube further contains the following chemical elem...
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WO/2022/244706A1 |
A high-strength hot-rolled steel sheet according to the present invention has a specific component composition; the structure of this high-strength hot-rolled steel sheet contains a total 80-100% by area of martensite and bainite as the ...
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WO/2022/239591A1 |
Provided are a high-strength hot-rolled steel sheet and manufacturing method therefor, and a high-strength electric resistance welded steel pipe and manufacturing method therefor. In the high-strength hot-rolled steel sheet according to ...
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