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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/2021/124094A1 |
A hot rolled steel sheet having a composition comprising of the following elements, 0.18 % ≤ Carbon ≤ 0.3 %, 1.8 % ≤ Manganese ≤ 4.5%. 0.8% ≤ Silicon ≤ 2%,0 001% ≤ Aluminum ≤ 0.2 %, 0.1% ≤ Molybdenum ≤ 1%, 0.001% ≤ ...
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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/2021/125596A1 |
The present invention relates to a steel sheet which can be used for automobile parts and the like, and relates to a steel sheet having a superior strength-ductility and strength-hole expansibility balance and superior bending workabilit...
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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/2021/125863A2 |
An annealing separator composition for a grain-oriented electrical steel sheet, according to one embodiment of the present invention, comprises a composite metal oxide comprising Mg and metal M, wherein M is at least one from among Be, C...
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WO/2021/125680A1 |
A grain-oriented electrical steel sheet according to one embodiment of the present invention comprises: a linear groove formed on one or both sides of the electrical steel sheet in a direction crossing a rolling direction; and a linear t...
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WO/2021/125408A1 |
One aspect of the present invention is intended to provide a steel wire rod having excellent spheroidizing heat treatment properties, and a method for producing same. An embodiment of the present invention provides a steel wire rod havin...
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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/2021/124132A1 |
The invention deals with a hot rolled and annealed steel sheet having a composition comprising, by weight percent: C: 0.1 - 0.25 %, Mn: 3.00 - 5.00 %, Si: 0.80 - 1.60 %, B: 0.0003 - 0.004 %, S ≤ 0.010 %, P ≤ 0.020 %, N ≤ 0.008 % th...
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WO/2021/124203A1 |
The invention deals with a hot rolled and heat-treated steel sheet having a composition comprising, by weight percent C 0.12-0.25 % Mn 3.0-8.0 %, Si 0.70-1.50 %, Al 0.3-1.2 %, B 0.0002-0.004 %, S ≤ 0.010 %, P ≤ 0.020 % N < 0.008 %, t...
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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/2021/125623A1 |
The present invention is to provide a steel having high strength properties and also having superior elongation, and a manufacturing method therefor.
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WO/2021/123886A1 |
The invention deals with a hot rolled and annealed steel sheet having a composition comprising, by weight percent: C: 0.1 - 0.25 %, Mn: 3.00 - 5.00 %, Si: 0.80 - 1.60 %, B: 0.0003 - 0.004 %, S ≤0.010 %, P ≤ 0.020 %, N ≤ 0.008 % the...
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WO/2021/125862A1 |
A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, by wt%: 1.5% or less of Si, 0.01% or less (excluding 0%) of C, 0.03-3% of Mn, 0.01-0.2% of P, 0.001-0.02% of S, 0.01% or less (excludin...
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WO/2021/125793A1 |
Provided are a wire rod for high strength cold head quality steel with excellent resistance to hydrogen embrittlement, and a manufacturing method thereof. The wire rod for high strength cold head quality steel of the present invention, c...
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WO/2021/125579A1 |
Disclosed is a method for producing a hot stamping blank comprising the steps of: forming a plated layer on a steel plate by submerging same in a plating bath containing aluminum and silicon; and heating the steel plate, on which the pla...
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WO/2021/124780A1 |
The present invention provides a motor core that has excellent fatigue characteristics and proposes a method for cheaply producing the motor core. A motor core that is a laminate of electromagnetic steel sheets. At the outer circumferent...
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WO/2021/125723A1 |
Disclosed are a method for manufacturing a non-oriented electrical steel sheet, and the manufactured non-oriented electrical steel sheet, the method comprising the steps of: heating a slab comprising, by wt%, 0.005% or less of C, 2.5-4.0...
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WO/2021/125728A2 |
The present disclosure provides a manufacturing method and a grain-oriented electrical steel sheet manufactured thereby, the manufacturing method comprising the steps of: heating a slab; hot rolling the heated slab so as to manufacture a...
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WO/2021/124199A1 |
The invention deals with a hot rolled steel sheet having a composition comprising, by weight percent: C: 0.10 - 0.25 %, Mn: 3.5 - 5.0 %, Si: 0.80 - 1.60 %, B: 0.0003 - 0.004 %, S ≤ 0.010 %, P ≤ 0.020 %, N ≤ 0.008 % the remainder of...
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WO/2021/125900A1 |
A composition for forming an oriented electrical steel sheet insulation film according to an example of the present invention includes a compound represented by chemical formula (1). [Chemical Formula 1] [K]+[(SiO(OR)2)nOR]- (In chemical...
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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/2021/125589A1 |
The present invention relates to a steel sheet and a method for manufacturing same, the steel sheet, which can be used for automobile parts and the like, having superb bending formability, and excellent balance of strength and ductility ...
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WO/2021/125640A1 |
The present invention relates to a steel sheet for a seismic damper used to assure seismic resistance of a structure against an earthquake and a method for manufacturing same and, more particularly, to a steel sheet with low yield streng...
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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/2021/125902A2 |
A grain-oriented electrical steel sheet according to an embodiment of the present invention has an average degree of orientation difference of 0.5-10° between recrystallized grains that are in contact with a groove present on the surfac...
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WO/2021/125730A2 |
The present invention provides a steel sheet having excellent wear resistance and composite corrosion resistance, and a method of manufacturing same. According to one example of the present invention, a corrosion-resistant steel sheet ha...
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WO/2021/125864A1 |
A method for manufacturing a grain-oriented electrical steel sheet, according to one embodiment of the present invention, comprises: a step for producing a hot-rolled steel sheet by hot-rolling a slab; a step for hot-rolled-sheet-anneali...
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WO/2021/125605A1 |
The present invention relates to a steel sheet which can be used for automobile parts and the like, and relates to a steel sheet having a superior strength-ductility and strength-hole expansibility balance and superior bending workabilit...
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WO/2021/123880A1 |
Cold-rolled and annealed steel sheet and manufacturing method The steel sheet has a composition comprising 0.060 % ≤ C ≤ 0.085 %, 1.8 % ≤ Mn ≤ 2.0%, 0.4% ≤ Cr ≤ 0.6%, 0.1 % ≤ Si ≤ 0.5 %, 0.010% ≤ Nb ≤ 0.025%, 3.42N ...
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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/2021/125595A1 |
The present invention relates to a steel sheet which can be used for automobile parts and the like, and relates to a steel sheet having a superior strength-ductility and strength-hole expansibility balance and superior bending workabilit...
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WO/2021/125597A1 |
The present invention relates to a steel sheet and a method for manufacturing same, the steel sheet, which can be used for automobile parts and the like, having superb bending formability, and excellent balance of strength and ductility ...
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WO/2021/125748A1 |
A structural steel material according to an aspect of the present invention contains, in weight percent, 0.12-0.18% of C, 0.02-0.5% of Si, 0.6-1.6% of Mn, 0.002-0.06% of Sol. Al, 0.001-0.05% of Nb, 0.001-0.06% of V, 0.003-0.009% of Ti, 0...
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WO/2021/125624A1 |
One embodiment of the present invention provides a steel material having excellent strain-aging impact toughness at extremely low temperatures and a method of manufacturing same, wherein the steel material comprises, in wt%: 0.05-0.08% o...
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WO/2021/123889A1 |
The invention deals with a hot rolled and heat-treated steel sheet having a composition comprising, by weight percent C: 0.12 - 0.25 % Mn: 3.0 - 8.0 %, Si: 0.70 - 1.50 %, Al: 0.3- 1.2 %, B: 0.0002 - 0.004 %, S ≤ 0.010 %, P ≤ 0.020 % ...
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WO/2021/125734A1 |
The present invention relates to a thick steel material suitable for use as a line pipe, a sour-resistant material, or the like, and more specifically, to a high-strength steel material having excellent resistance to sulfide stress crack...
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WO/2021/123130A1 |
The invention relates to a high strength steel with a careful selection of the normal alloying elements C, Mn, Si and Al, together with micro-element addition. This a steel with a high strength and high hole expansion ratio can be produc...
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WO/2021/124136A1 |
The invention deals with a cold rolled and heat-treated steel sheet having a composition comprising, by weight percent C: 0.12 - 0.25 % Mn: 3.0 - 8.0 %, Si: 0.70 - 1.50 %, Al: 0.3 - 1.2 %, B: 0.0002 - 0.004 %, S ≤ 0.010 %, P ≤ 0.020 ...
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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/2021/125855A2 |
A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, by weight%: 2.2-4.5% of Si; 0.5% or less (exclusive of 0%) of Mn; 0.001-0.5% of Al; 0.07-0.25% of Sn; 0.0010-0.0090% of N; and the bala...
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WO/2021/125602A2 |
The present invention relates to a steel sheet which can be used for automobile parts and the like, and relates to: a steel sheet which is excellent in the balance between strength and ductility and the balance between strength and hole ...
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WO/2021/125749A2 |
Provided are a wire rod for cold heading having excellent delayed fracture resistance characteristics, parts, and a method for manufacturing same. The wire rod of the present invention comprises, by wt%, 0.3-0.5% of C, 0.01-0.3% of Si, 0...
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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/2021/125386A1 |
The present invention provides a high-strength hot-rolled steel sheet comprising, in percentage by weight: C: 0.10-0.30%; Si: 0.001-1.0%; Mn: 0.5-2.5%; Cr: 0.001-1.5%; Mo: 0.001-0.5%; Al: 0.001-0.5%; P: 0.001-0.01%; S: 0.001-0.01%; N: 0....
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WO/2021/125604A1 |
The present invention relates to a steel sheet and a method for manufacturing same, the steel sheet, which can be used for automobile parts and the like, having superb bending formability, and excellent balance of strength and ductility ...
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