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WO/2021/145043A1 |
Provided is a copper alloy plate in which: the alloy composition contains 0.10-0.80 mass% of Cr, and the remainder is Cu and inevitable impurities; the tensile strength is 350-800 MPa; the conductivity is 55-90% IACS; the average crystal...
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WO/2021/144164A1 |
The invention relates to a method for producing a surface-treated and surface-conditioned steel sheet (11), said method having the following steps: - providing a steel sheet (1) with a zinc-based coating (1.1), wherein zinc grains (2) ar...
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WO/2021/143661A1 |
Disclosed is a high corrosion-resistance strip steel, comprising a carbon steel base layer and a corrosion-resistance cladding layer roll-bonded with the carbon steel base layer, the corrosion-resistance cladding layer being austenitic s...
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WO/2021/144192A1 |
The invention relates to a method for producing a surface-treated and surface-conditioned steel sheet (11), said method having the following steps: providing a steel sheet (1) with a zinc-based coating (1.1) which has a first degree of s...
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WO/2021/140728A1 |
The present invention provides a method of producing a tall, large steel sheet pile. A rolling equipment line obtained by disposing, in the stated order, a heating device, a roughing mill, an intermediate rolling mill, and a finishing ro...
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WO/2021/139555A1 |
An energy-saving device for producing elongated steel by calendaring using smelting waste heat, comprising a multi-strand continuous casting machine (1), a multi-strand roller-hearth tunnel kiln (2), a roller-hearth traversing machine (3...
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WO/2021/136336A1 |
A method of twin-roll casting a boron-added steel having a composition of C: ≤ 0.03 wt. %, Si:≤ 0.3 wt. %, Mn: 0.3-0.8 wt. %, P: ≤0.02 wt. %, N:≤ 0.008 wt. %, S:≤ 0.003 wt. %, B: 0.0008-0.0015 wt. %, the balance being Fe and un...
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WO/2021/131876A1 |
This hot-rolled steel sheet has a predetermined chemical composition, and a microstructure containing at least 80 volume% of tempered martensite, with the balance comprising at least one among ferrite, pearlite, bainite, fresh martensite...
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WO/2021/125856A2 |
A non-directional electrical steel sheet according to one embodiment of the present invention comprises, by wt%, 2.1-3.8% of Si, 0.001-0.6% of Mn, 0.001-0.6% of Al, 0.0005-0.003% of Bi, 0.0003-0.001% of Ge, and the balance of Fe and inev...
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WO/2021/125554A2 |
The present invention provides a wire rod for a steel fiber, a steel fiber, and a method for manufacturing same, capable of securing a high strength of 1,500 MPa or higher without an LP heat treatment during wire drawing. According to on...
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WO/2021/125878A1 |
An embodiment of the present invention provides steel for hot forming, a hot-formed member, and methods for manufacturing same, the steel comprising, by wt%, 0.06-0.1% of C, 0.05-0.6% of Si, 0.6-2% of Mn, 0.05% or less of P, 0.02% or les...
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WO/2021/125686A1 |
A grain-oriented electrical steel sheet according to an embodiment of the present invention may comprise: by weight%, 2.0-4.0% of Si, 0.04-0.2% of Mn, 0.010% or less (exclusive of 0%) of N, 0.01-0.05% of Sb, 0.005% or less (exclusive of ...
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WO/2021/125564A1 |
Disclosed are high-strength ferritic stainless steel STS430, which has yield strength of 350MPa or greater and can be applied to a clamp of a vehicle or a common hose, and a manufacturing method therefor. A high-strength ferritic stainle...
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WO/2021/125660A1 |
A vacuum tube steel according to one aspect of the present invention comprises, by wt%, 0.1-0.2% of C, 0.05-0.5% of Si, 1.0-1.6% of Mn, 0.5-1.0% of Ni, 1.5-4.0% of Cr, and the balance of Fe and inevitable impurities, and can include, as ...
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WO/2021/125407A1 |
The present invention relates to a wire rod having excellent spheroidizing heat treatment properties and a method of manufacturing same. An embodiment of the present invention provides a wire rod having excellent spheroidizing heat treat...
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WO/2021/125684A1 |
A cold-rolled steel sheet according to an example of the present invention comprises at most 0.0004 wt% (exclusive of 0 wt%) of C, at most 0.02 wt% (exclusive of 0 wt%) of Si, 0.1 to 0.3 wt% of Mn, at most 0.05 wt% (exclusive of 0 wt%) o...
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WO/2021/125580A1 |
A ferritic stainless steel having improved magnetization is disclosed. The disclosed ferritic stainless steel comprises, on the basis of wt%, 0.01% or less (excluding 0) of C, 0.003% or less (excluding 0) of N , 15-18% of Cr, 0.3-1.0% of...
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WO/2021/125765A1 |
A steel sheet having excellent processability according to an embodiment of the present invention comprises 0.8-1.0 wt% of C, 0.1-0.3 wt% of Si, 0.2-0.5 wt% of Mn, 0.1-0.3 wt% of Cr, at most 0.03 wt% of P, and at most 0.005 wt% of S, wit...
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WO/2021/125861A2 |
In a double-oriented electrical steel sheet according to an embodiment of the present invention, the fraction of crystal grains having an orientation within 15° from ｛100｝<001> is 50-75%, and the fraction of crystal grains having an...
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WO/2021/125857A1 |
A double-oriented electrical steel sheet according to an example of the present invention comprises 2.0 to 4.0 wt% of Si, 0.01 to 0.04 wt% of Al, 0.0004 to 0.02 wt% of S, 0.05 to 0.3 wt% of Mn, at most 0.01 wt% (exclusive of 0 wt%) of N,...
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WO/2021/125681A2 |
A method for manufacturing a grain-oriented electrical steel sheet according to an embodiment of the present invention comprises the steps of: hot-rolling a slab to prepare a hot-rolled sheet, the slab containing, in wt%, 2.0 to 6.0% of ...
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WO/2021/125283A1 |
This steel sheet has a specific chemical composition, has a tensile strength of not less than 1300 MPa, and has a ratio (R/t) of critical bend radius to sheet thickness of less than 3.5, wherein AlN is present at a position A at a densit...
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WO/2021/125789A1 |
The present invention provides a high-strength blackplate and a manufacturing method therefor. The blackplate according to an embodiment of the present invention comprises, by wt%: 0.03-0.09% of carbon (C); 0.2-0.4% of manganese (Mn); 0....
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WO/2021/125738A1 |
One embodiment of the present invention provides a grain-oriented electrical steel sheet and a manufacturing method therefor, the grain-oriented electrical steel sheet comprising, by wt%, 3.0-4.5% of Si, 0.05-0.2% of Mn, 0.015-0.035% of ...
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WO/2021/125644A1 |
A cold rolled steel sheet having excellent bake-hardenability and room-temperature anti-aging property, according to one aspect of the present invention, comprises, by wt%, 0.002-0.015%, of C, 1.5-3.0% of Mn, 0.03% or less of P, 0.01% or...
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WO/2021/125688A1 |
A leaf spring steel sheet according to one aspect of the present invention comprises, by wt%, 0.7-1.0% of carbon (C), 0.1-0.4% of silicon (Si), 0.2-1.0% of manganese (Mn), 0.05-2.0% of chromium (Cr), 0.07-0.2% of vanadium (V), 0.03% or l...
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WO/2021/122106A1 |
The invention relates to a metal sheet (1) having a deterministic surface structure (2), the surface structure (2) being stamped into the metal sheet (1), the surface structure (2) having at least one peak region (1.1) and at least one t...
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WO/2021/125763A1 |
The present invention relates to an abrasion resistant steel and a method for manufacturing same, wherein the abrasion resistant steel does not have a crack occurring thereon even after being cut by means of a gas, etc.
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WO/2021/125435A1 |
A spring wire rod having improved toughness and corrosion fatigue properties is disclosed. The disclosed wire rod comprises, by wt%, 0.4-0.7% of C, 1.2-2.3% of Si, 0.2-0.8% of Mn, 0.2-0.8% of Cr, and the balance of Fe and inevitable impu...
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WO/2021/125790A2 |
The present invention provides a tin blackplate for processing and a method of manufacturing same. The tin blackplate according to one embodiment of the present invention comprises: in % by weight, 0.0005 to 0.005% of carbon (C), 0.15 to...
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WO/2021/125471A1 |
The present specification relates to a wire rod for an ultra-high strength spring, a steel wire and a manufacturing method thereof and, more specifically, to a wire rod, for an ultra-high strength spring, having excellent processability,...
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WO/2021/125563A1 |
Disclosed are a high-strength hot-rolled steel sheet having an excellent yield ratio and omitting post-processing, and a method for manufacturing the steel sheet. The hot-rolled steel sheet according to a disclosed embodiment comprises, ...
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WO/2021/115900A1 |
The invention relates to modular rolling train, particularly hot rolling train (1), preferably in conjunction with an upstream casting facility, and to a method for operating a modular rolling train. The rolling train is standardized and...
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WO/2021/115508A1 |
The invention relates to a cross-field induction heating device for the induction heating of metal strip in a rolling mill. The device has a top inductor and a bottom inductor between which the metal strip to be heated is arranged. Each ...
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WO/2021/104292A1 |
Disclosed is a multi-layer rolled composite board, comprising a transition layer provided between two adjacent composite layers, wherein the transition layer is an anisotropic steel sheet. Also disclosed is a manufacturing method for the...
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WO/2021/106543A1 |
Provided is a steel strip notching method that can suppress decrease in the lifetime of a tool and that exhibits the effect of excellent suppression of chattering vibrations when, after forming notches at ends of a joint part in a sheet ...
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WO/2021/104417A1 |
Disclosed in the present invention is a manufacturing method for a carbon steel and austenitic stainless steel rolling clad plate, comprising the steps of: (1) obtaining a blank material of a carbon steel layer and a blank material of a ...
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WO/2021/105896A1 |
A rolling process for long solid-section products, comprising rolling through at least one pair of rolling mill stands 1, 2, wherein rolled stock is subjected to a tensile load, between the two stands 1, 2, which generates a single-axial...
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WO/2021/106723A1 |
Provided are manufacturing equipment and a manufacturing method for steel plate that make it possible to perform cooling more uniformly during heat treatment of steel plate and make it possible to manufacture steel plate that is flat and...
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WO/2021/105489A1 |
A method of manufacturing a steel strip comprising the steps of: - casting the molten steel into slabs; - reheating the slabs at a temperature of 1150 °C or more fora time of 1 hour or more; hot rolling the steel into a strip, preferabl...
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WO/2021/099077A1 |
The invention relates a method for operating a system of the iron and steel industry for producing a metal product using a separating or forming device. According to the invention, for the metal product to be produced, the actual value o...
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WO/2021/097567A1 |
A working roller for a rolling mill for laminating a sheet of alkali metal or alloy thereof into a film is disclosed. The working roller has a cylindrical center portion defining a central axis, the center portion having an outer surface...
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WO/2021/100534A1 |
Provided are: a hot rolled steel sheet for an electroseamed steel pipe and a method for producing same; an electroseamed steel pipe and a method for producing same; a line pipe; and a building structure. This hot rolled steel sheet for a...
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WO/2021/098337A1 |
A modular independent transmission rolling mill and a unit, relating to the field of metallurgical rolling equipment. The modular independent transmission rolling mill comprises a modular rolling mill (1), a gear box (3), and a motor (5)...
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WO/2021/097568A1 |
A lamination lubricant dispensing unit for lubricating a working roller of a rolling mill for laminating a sheet of alkali metal or alloy thereof into a film. The lubricant dispensing unit has a dispensing unit body defining a laterally ...
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WO/2021/097566A1 |
A working roller for a rolling mill for laminating a sheet of alkali metal or alloy thereof into a film is disclosed. The working roller has a cylindrical center portion defining a central axis, the center portion having an outer surface...
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WO/2021/100327A1 |
The objective of the present invention is to perform diameter reduction rolling of large-diameter to small-diameter rolling stock, with high external diameter dimensional accuracy. Provided is a rolling mill in which three or more rollin...
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WO/2021/083650A1 |
Method for controlling the temperature of at least one of the rolls (12) that are arranged in a roll stand and delimit a roll gap, in which method a temperature-control fluid is applied to temperature-control zones positioned on the roll...
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WO/2021/078524A1 |
A method for surface-finishing a metal sheet (1) is proposed, wherein the metal sheet (1) is rolled with a skin-pass roll, wherein depressions (6) are rolled into at least one surface (7) of the metal sheet (1) during rolling, wherein ma...
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WO/2021/078225A1 |
A pulse current-assisted uncanned rolling method for a titanium-TiAl composite plate, comprising the specific steps of: 1. titanium alloy sheet preparation; 2. TiAl alloy sheet preparation; 3. uncanned assembly; 4. pulse current-assisted...
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