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WO/2023/121223A1 |
According to one aspect of the present invention, an austenitic high-manganese steel having excellent ultra-low temperature toughness in a weld heat-affected zone, and a manufacturing method therefor can be provided.
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WO/2023/120348A1 |
According to the present invention, a steel stock material having a specific chemical component composition is heated to a rolling temperature of 1150°C to 1350°C and is subsequently rolled, thereby producing a rolled material; and aft...
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WO/2023/121183A1 |
A hot rolled steel sheet having excellent cold bendability after heating and quenching-tempering heat treatment, a steel pipe, a member and manufacturing methods therefor are provided. The present invention relates to: a hot rolled steel...
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WO/2023/121063A1 |
Disclosed in the present specification are a martensitic stainless steel and manufacturing method therefor, wherein the martensitic stainless steel is induced, through control over the alloy composition in terms of Cu, Nb, etc. and manuf...
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WO/2023/121027A1 |
The present invention pertains to a steel plate and a method for manufacturing same. More specifically, the present invention pertains to a steel plate having high strength and excellent low-temperature impact toughness, and a method for...
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WO/2023/121259A1 |
An annealing separating agent composition for a grain oriented electrical steel sheet according to an embodiment of the present invention contains 25-80 wt% of a boron compound on the basis of 100 wt% of the total solid content, with the...
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WO/2023/121268A1 |
A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, by wt%: 1.4-3.0 % of Si; 0.001-1.5 % of Mn; and 0.001-0.2 % of Al, with the remainder of Fe and inevitable impurities, wherein a thickn...
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WO/2023/121270A1 |
A non-oriented electrical steel sheet according to an embodiment of the present invention comprises, by wt%, 3.1-3.8% of Si, 0.5-1.5% of Al, 0.3-1.5% of Mn, 0.01-0.15% of Cr, 0.02-0.08% of Sn, 0.03-0.06% of Sb, and the remainder of Fe an...
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WO/2023/121222A1 |
An aspect of the present invention provides: an austenitic high-manganese steel having excellent extreme low temperature toughness in a heat-affected zone; and a method for manufacturing same.
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WO/2023/121182A1 |
According to an aspect of the present invention, provided are a high-carbon steel sheet with excellent durability, and industrial or automotive parts manufactured using same.
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WO/2023/113527A1 |
The present invention pertains to a grain-oriented electrical steel sheet and a method for manufacturing same. The grain-oriented electrical steel sheet according to an embodiment of the present invention comprises: a base material conta...
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WO/2023/112420A1 |
Provided is a method for manufacturing a laminated iron core by which an excellent iron loss characteristic can be obtained.　The method for manufacturing a laminated iron core according to the present invention is characterized in that...
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WO/2023/113219A1 |
The present invention relates to: a steel material having high strength and excellent impact toughness, the steel material being usable for a land wind power generator and the like; and a method for manufacturing same.
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WO/2023/113535A1 |
The present invention relates to a cold rolled steel sheet and a method for manufacturing same, the cold rolled steel sheet comprising, in wt%, 0.0003 to 0.003% of C, 0.25 to 0.55% of Mn, 0.001 to 0.03% of Si, 0.0005 to 0.0015% of Al, 0....
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WO/2023/113554A1 |
A cold rolled steel sheet according to an embodiment of the present invention comprises, by wt%: C: 0.01 to 0.10%; Mn: 0.1 to 0.4%; Al: 0.01 to 0.10%; P: 0.003 to 0.020%; N: 0.001 to 0.006%; S: 0.015% or less; Cr: 0.1 to 0.4%; B: 0.0005 ...
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WO/2023/112891A1 |
A non-oriented electromagnetic steel sheet according to the present invention contains no greater than 0.010% of C, 1.0% to 5.0% (inclusive) of Si, 0.05% to 5.0% (inclusive) of Mn, no greater than 0.1% of P, no greater than 0.01% of S, n...
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WO/2023/113532A1 |
The present invention relates to a cold-rolled steel sheet and a method for manufacturing same. A cold-rolled steel sheet according to one embodiment comprises, in weight%, 0.01-0.05 % of carbon (C), 0.6-1.2 % of manganese (Mn), 0.05 % o...
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WO/2023/112892A1 |
A non-oriented electromagnetic steel sheet according to the present invention contains, in mass%, 0.010% or less C, 1.0 to 5.0% Si, 0.05 to 5.0% Mn, 0.1% or less P, 0.01% or less S, 3.0% or less Al, and 0.005% or less N, the remainder be...
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WO/2023/113444A1 |
The present invention relates to a calcium-containing graphite steel wire rod, steel wire, graphite steel, and a manufacturing method and cutting method therefor and, more particularly, proposes a cutting method for manufacturing industr...
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WO/2023/113428A1 |
The present invention relates to a graphite steel having excellent machinability, and a manufacturing method therefor, and, more specifically, to a calcium-containing graphite steel having a machinability superior to that of normal free-...
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WO/2023/110810A1 |
The invention relates to a steel-based metal wire for reinforcing rubber items selected from among vehicle tyres, tracks and conveyor belts which is obtained by means of a method comprising at least one step of producing a steel wire, re...
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WO/2023/113645A1 |
The invention relates to the field of metallurgy, and more particularly to the production of rolled stock, and can be used for producing coil stock from structural steels, which exhibits increased fire-resistance. The technical result co...
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WO/2023/113453A1 |
The present invention relates to a high-strength steel sheet having excellent formability and a high yield ratio, and a manufacturing method therefor, and, more particularly, to a high-strength steel sheet having excellent formability an...
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WO/2023/112561A1 |
The present invention provides a magnetic member manufacturing method capable of achieving both demagnetization of a part of an electromagnetic steel plate and yield rate improvement based on effective use of the electromagnetic steel pl...
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WO/2023/109005A1 |
The present invention belongs to the field of steel material preparation, and relates to a 56 kg-grade low-yield-ratio ultrahigh-strength maritime work steel plate and a preparation method therefor. The composition design of the present ...
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WO/2023/113206A1 |
The present invention relates to an austenitic stainless steel and a manufacturing method therefor and, specifically, to an austenitic stainless steel and a manufacturing method therefor, wherein the austenitic stainless steel can secure...
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WO/2023/112634A1 |
The purpose of the present invention is to propose: a steel sheet which has excellent joint toughness, excellent base material toughness and high tensile strength even at low temperatures of -60°C or less in a high heat input welding he...
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WO/2023/113327A1 |
The present invention relates to: a hot rolled steel sheet for ground reinforcement and a steel pipe for ground reinforcement, which have excellent strength and formability; and manufacturing methods thereof.
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WO/2023/113430A1 |
The present invention relates to a graphite steel wire rod for TV PEM nut parts, graphite steel, and a manufacturing and machining method therefor, and, more particularly, provides a machining method for manufacturing industrial parts an...
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WO/2023/113558A1 |
A cold-rolled steel sheet, according to one embodiment of the present invention, may comprise in percentage by weight: carbon (C): 0.010-0.025%; manganese (Mn): 0.10-0.25%; sulfur (S): 0.002-0.011%; boron (B): 0.0006-0.0026%; nitrogen (N...
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WO/2023/112763A1 |
This hot-rolled steel sheet has a metal structure that contains, in percentage by area, 55% to 95% of bainite, 5% to 30% of residual austenite, 5% or less of fresh martensite, 5% or less of ferrite and 5% or less of pearlite, while havin...
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WO/2023/112418A1 |
Provided is a laminated core having good core loss characteristics.　This laminated core is formed of a laminate of electromagnetic steel sheets processed to a predetermined shape, the electromagnetic steel sheets having an insulating c...
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WO/2023/112419A1 |
Provided is a laminated iron core with good iron loss characteristic.　A laminated iron core of the present invention is formed by laminating electromagnetic steel sheets processed into a predetermined shape and has a butt portion where...
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WO/2023/112421A1 |
The present invention provides: a grain-oriented electromagnetic steel sheet which has excellent film adhesion; and a method for producing this grain-oriented electromagnetic steel sheet.　A grain-oriented electromagnetic steel sheet ac...
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WO/2023/113387A1 |
The present invention relates to a steel sheet suitable for automobile chassis members, etc., and, more particularly, to an ultra-high strength steel sheet having excellent bendability, and a manufacturing method therefor.
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WO/2023/105272A1 |
A low density hot rolled steel comprising of 0.12%≤carbon≤0.25%, 3%≤manganese≤10%, 3.5%≤aluminum≤6.5%, 0%≤phosphorus≤0.1%, 0% ≤ sulfur ≤ 0.03%, 0% ≤ nitrogen ≤ 0.1%,0% ≤ silicon ≤ 2%, 0.01% ≤ niobium ≤ 0.0...
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WO/2023/105271A1 |
A low density hot rolled steel comprising of 0.12% ≤ carbon ≤ 0.25%, 3% ≤ manganese ≤ 10%, 3.5% ≤ aluminum ≤ 6.5%, 0% ≤ phosphorus ≤ 0.1%, 0% ≤ sulfur ≤ 0.03%, 0% ≤ nitrogen ≤ 0.1%, 0% ≤ silicon ≤ 2%, 0.01% â‰...
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WO/2023/106791A1 |
The present invention pertains to a cold rolled steel sheet and a method for manufacturing same. One aspect of the present invention provides: a cold rolled steel sheet having excellent weldability, strength, and formability; and a metho...
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WO/2023/105852A1 |
Provided is a stainless steel containing, in % by mass, 8.00 to 30.00% of Ni, 9.0 to 21.0% of Cr, 0.01 to 3.00% of Mo, 0.01 to 5.00% of Cu, and 0.0010 to 0.10% of N. Furthermore, the first invention contains at least one component select...
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WO/2023/103514A1 |
The present invention provides acid-resistant pipeline steel and a manufacturing method therefor. The manufacturing method comprises: performing a pre-desulfurization treatment on molten iron by means of a mechanical stirring method, so ...
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WO/2023/100765A1 |
Provided is a method for producing a thin silicon steel strip that includes a silicon content of 6.5% and is produced by cold rolling silicon steel with a silicon content in a range of 4.0-8.0%.　The method 1 for producing a thin silico...
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WO/2023/097979A1 |
The present invention relates to a corrosion-resistant high-strength steel sheet weldable with high heat input and used for ocean engineering. The steel sheet comprises the following chemical components in percentages by mass: 0.06-0.09%...
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WO/2023/101641A1 |
The invention particularly relates to a micro-alloyed steel composition comprising; carbon (C) in the ratio of 0.400-0.430% by weight, silicon (Si) in a ratio of 0.250-0.300% by weight, manganese (Mn) in a ratio of 1.600-1.650% by weight...
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WO/2023/093798A1 |
Disclosed in the present invention is a high-strength cold-rolled steel plate for a double-sided enamel liner, the high-strength cold-rolled steel plate comprising Fe and inevitable impurities, and also comprising the following chemical ...
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WO/2023/096299A1 |
The present invention relates to a hot-rolled steel sheet that can be suitably applied to an automobile chassis structure member or the like and, more specifically, to an ultrahigh-strength hot-rolled steel sheet having excellent formabi...
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WO/2023/093119A1 |
The present application relates to the technical field of metal materials, and discloses a high-toughness ultrahigh-strength steel and a manufacturing method therefor, used for solving the problems that existing low-alloy ultrahigh-stren...
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WO/2023/095870A1 |
This zinc-plated steel sheet comprises a steel sheet and a zinc plating layer arranged on the steel sheet, in which a metal structure at a depth corresponding to 1/4 of the thickness of the steel sheet from the surface of the steel sheet...
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WO/2023/093111A1 |
The present invention relates to the technical field of metal processing, and in particular to high Cr-Si alloyed coating-free hot forming steel and a hot rolling preparation method therefor. For the problems existing in the prior art th...
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WO/2023/096453A1 |
The present invention relates to an ultra-high strength cold-rolled steel sheet and a manufacturing method thereof and, more specifically, to a cold-rolled steel sheet and a manufacturing method thereof, wherein the cold-rolled steel she...
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WO/2023/095637A1 |
In a process for using a thin slab, the present invention suppresses ridging, which becomes a problem when handling steel containing a large amount of the alloy elements Si, Al, and Mn. Provided is a method for producing a hot-rolled ste...
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