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WO/2022/001904A1 |
Disclosed is an X90-grade high-strength pipeline steel plate coil having a thickness of ≥ 20 mm, comprising C, Si, Mn, P, S, Cu, Ni, Cr, Mo, Nb, V, Ti, N, Al, Ca and B, with the balance being Fe and inevitable inclusions, and with 0.16...
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WO/2021/039266A9 |
This austenitic heat-resistant steel has a chemical composition containing, in mass%, 0.04-0.12% of C, 0.10-0.30% of Si, 0.20-0.80% of Mn, 0-0.030% of P, 0.0001-0.0020% of S, 0.0005-0.0230% of Sn, 2.3-3.8% of Cu, 0.90-2.40% of Co, 22.0-2...
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WO/2021/260954A1 |
Provided are: a steel material having a chemical composition containing, in terms of mass%, 0.10-0.30% of C, 0.13-0.30% of Si, 0.50-1.00% of Mn, 0.003-0.020% of S, 1.65-2.00% of Cr, 0.010-0.100% of Al, 0.0050-0.0250% of N, 0.0002-0.0010%...
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WO/2021/261884A1 |
The present invention relates to a high-strength austenitic stainless steel and a method for producing same, wherein the austenitic stainless steel has high productivity due to excellent hot workability thereof and a superior cost reduct...
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WO/2021/261517A1 |
[Problem] To provide a novel and improved production method that is for a grain-oriented electrical steel sheet and that enables production of a grain-oriented electrical steel sheet having a high magnetic flux density and excellent magn...
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WO/2021/261693A1 |
The present invention relates to a high-toughness and high-hardness steel alloy, and a manufacturing method therefor, and one aspect of the present invention provides a high-toughness and high-hardness steel alloy comprising 0.4-0.6 wt% ...
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WO/2021/261515A1 |
Provided is a novel and improved method for producing an electromagnetic steel sheet, with which an electromagnetic steel sheet having excellent magnetic properties and coating film adhesion can be produced. This method for producing a...
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WO/2021/261518A1 |
Provided is a production method for a grain-oriented electrical steel sheet that is thin and has excellent magnetic characteristics. An embodiment of the present invention provides a production method that is for a grain-oriented electri...
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WO/2021/260026A1 |
A method of manufacturing tubing from a well-defined steel composition, in particular for a stored gas inflator pressure vessel, comprises the steps: a) producing a steel tubing from a steel composition including at least one hot rolling...
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WO/2021/261609A1 |
A high-entropy alloy, according to the present embodiment, comprises a first phase and a second phase respectively comprising iron and copper, and iron and a first metal other than copper, and having mutually different compositions. A re...
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WO/2021/258584A1 |
An 800 MPa construction machinery medium-manganese medium-thickness steel and a manufacturing method therefor, relating to the technical field of steel and iron smelting, wherein the chemical constituents and the mass percentages thereof...
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WO/2021/256862A1 |
The present invention provides a high-strength steel sheet suitable for automobile structural members, etc., and a method for manufacturing same, wherein the high-strength steel sheet has a low yield ratio and high strength and has excel...
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WO/2021/255855A1 |
This steel sheet has a prescribed chemical composition, and is such that: a ratio Mn/Ni of Mn content to Ni content is at most 0.80; the carbon equivalent CeqWES is 0.43-0.70% (inclusive); the tensile strength is 780-930 MPa (inclusive);...
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WO/2021/255858A1 |
A steel sheet according to the present invention contains predetermined chemical components, wherein: Mn/Ni, which is the ratio of Mn content to Ni content, is 0.80 or less; the carbon equivalent CeqWES is 0.430-0.900%; the tensile stren...
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WO/2021/254719A1 |
A hot-rolled strip steel product having a chemical composition consisting of, in terms of weight percentages (wt. %): 0.030%-0.10% C, 0%-1.10% Si, 0.50%-2.0% Mn, <0.020% P, <0.010% S,<0.010% N, 0%-0.60% Cr, 0%-0.20% Ni, 0%-0.25% Cu, 0%- ...
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WO/2021/256590A1 |
The present invention provides a rebar comprising 0.07 to 0.43 wt% of carbon (C), 0.5 to 2.0 wt% of manganese (Mn), 0.05 to 0.5 wt% of silicon (Si), 0 (exclusive) to 0.5 wt% of chromium (Cr), 0 (exclusive) to 4.5 wt% of copper (Cu), 0 (e...
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WO/2021/254610A1 |
According to the invention, to produce sheet steel products which are suitable for forming into sheet metal parts and can be welded well, a) a steel melt is melted, which consists of, in wt%, C: 0.10-0.4, Si: 0.05-0.5, Mn: 0.5-3.0, AI: 0...
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WO/2021/254143A1 |
A high-strength ultra-corrosion-resistant non-magnetic stainless steel and a preparation method therefor, the composition of the non-magnetic stainless steel being the following in weight percentage: 17％
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WO/2021/254768A1 |
The invention relates to a method for using swapping effects with the aim of increasing the voltage and/or limiting the voltage loss of preload elements from a shape memory alloy, wherein the preload element is fixed at the destination, ...
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WO/2021/257608A1 |
Coated grain oriented electrical steel plates and methods of producing the same are provided. In an exemplary embodiment, a method includes producing molten steel with from about 2.5 to about 4 weight percent silicon, from about 0.005 to...
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WO/2021/254722A1 |
A hot-rolled strip steel product having a chemical composition consisting of, in terms of weight percentages (wt. %): 0.025%-0.070% C, 0%-1.10% Si, 0.50%-2.0% Mn, <0.020% P, <0.050% S,<0.010% N, 0%-0.60% Cr, 0%-0.20% Ni, 0%-0.25% Cu, 0%-...
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WO/2021/256587A1 |
A steel section according to an embodiment of the present invention comprises: 0.08-0.17 wt% of carbon (C); 0.50-1.60 wt% of manganese (Mn); 0.10-0.50 wt% of silicon (Si); 0.10-0.70 wt% of chromium (Cr); greater than 0 wt% and less than ...
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WO/2021/255776A1 |
This steel wire for a spring is provided with a steel main body that has a linear shape, and an oxide layer that covers the outer peripheral surface of the main body. The steel constituting the main body contains 0.5%-0.7% by mass of C, ...
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WO/2021/249446A1 |
Disclosed is an ultra-high-strength steel having excellent plasticity, comprising in mass percent the chemical elements: C: 0.26-0.30wt%; Si: 0.8-1.00wt%; Mn: 2.80-3.30wt%; Al: 0.04-0.08wt%; with the balance being Fe and other inevitable...
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WO/2021/250450A1 |
The invention relates to a cold rolled and heat-treated steel sheet, the steel comprising, in weight percentage, 0.17% ≤ carbon ≤ 0.25%, 2% ≤ manganese ≤ 3%, 0.9% ≤ silicon ≤ 2%, 0% ≤ aluminum ≤0.09%, 0.01%≤ molybdenum ...
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WO/2021/250953A1 |
Provided is a linear groove formation pattern by which both a building factor reduction effect and a high magnetic flux density are achieved. This grain-oriented electromagnetic steel sheet has, on a surface thereof, multiple linear groo...
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WO/2021/249252A1 |
Disclosed is a steel rail that is resistant to chloride ion corrosion and a preparation method, which comprises the following according to weight percentage: C: 0.66％-0.76％, Si: 0.53％-0.73％, Mn: 0.9％-1.7％, P≤0.012％, S≤0...
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WO/2021/238916A1 |
Disclosed in the present invention is an ultrahigh-strength dual-phase steel. The matrix structure of the ultrahigh-strength dual-phase steel is ferrite and martensite, wherein the ferrite and the martensite are evenly distributed in an ...
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WO/2021/241606A1 |
The present invention provides a wear resistant steel sheet which has both excellent wear resistance and excellent bending workability over a wide width. A wear resistant steel sheet which has a predetermined component composition, where...
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WO/2021/238915A1 |
Disclosed is an electro-galvanized super-strength dual-phase steel resistant to delayed cracking. A matrix structure thereof is ferrite + tempered martensite and the steel contains the following chemical elements in the following mass pe...
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WO/2021/239057A1 |
Disclosed in the present invention is a thin-gauge oriented silicon steel plate having excellent manufacturability, which comprises the following chemical elements in percentage by mass: Si: 3.0-4.0%; C: 0.04-0.1%; Mn: 0.05-0.20%; S: 0.0...
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WO/2021/241604A1 |
The present invention provides a wear resistant steel sheet which has both excellent wear resistance and excellent bending workability over a wide width. A wear resistant steel sheet which has a predetermined component composition, where...
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WO/2021/239394A1 |
The present invention relates to a method for the recrystallisation annealing of a non-grain-oriented electric strip (2) in a continuous annealing and coating line (1), wherein the electric strip (2) is heated in an induction furnace (5)...
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WO/2021/238917A1 |
Disclosed is a cold-rolled and annealed dual-phase steel having a tensile strength of greater than 780 MPa. A matrix structure thereof is fine and uniform martensite + ferrite. The cold-rolled and annealed dual-phase steel contains the f...
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WO/2021/238895A1 |
Disclosed is a low-cost non-oriented electrical steel plate with an extremely low aluminum content, which plate comprises the following chemical elements in percentage by mass: C: ≤ 0.003%, Si: 0.1%-1.2%, Mn: 0.1%-0.4%, P: 0.01%-0.2%, ...
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WO/2021/241605A1 |
The present invention provides a wear resistant steel sheet which has both excellent wear resistance and excellent bending workability over a wide width. A wear resistant steel sheet which has a predetermined component composition, where...
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WO/2021/235498A1 |
The present invention presents a method that can, regardless of the properties of a steel sheet, prevent the kinking and/or crushing of the steel sheet which has been rolled up in a coil shape. The method is for determining the pattern...
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WO/2021/235094A1 |
Provided is a grain-oriented electromagnetic steel sheet which has undergone a heat-resistant magnetic domain refinement treatment that makes it possible to effectively prevent the occurrence of carburizing or nitriding during strain rel...
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WO/2021/233247A1 |
Disclosed in the present invention are cold-rolled enamel steel for deep drawing an inner container and a manufacturing method therefor. The cold-rolled enamel steel comprises the following chemical elements in percentage by mass: 0.02-0...
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WO/2021/232275A1 |
A hot-work die steel and a preparation method therefor. The hot-work die steel has the following chemical composition in mass percent: 0.20-0.32 wt% of C, Si ≤0.5 wt%, Mn ≤0.5 wt%, 1.5-2.8 wt% of Cr, 1.5-2.5 wt% of Mo, 0.5-1.2 wt% of...
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WO/2021/229933A1 |
To form a linear groove having a desired groove width on a metal strip surface and, as a result, provide a grain-oriented electromagnetic steel sheet having extremely exceptional magnetic characteristics. A groove formation method in whi...
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WO/2021/227921A1 |
A high-strength anti-collapse oil casing and a manufacturing method therefor. The high-strength anti-collapse oil casing comprises the following chemical elements in percentage by mass: 0.08%-0.18% of C; 0.1%-0.4% of Si; 0.1%-0.28% of Mn...
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WO/2021/223937A1 |
the invention relates to a method for the open-loop or closed-loop control of the temperature of a steel strip during hot working in a hot strip mill. A higher-level open-loop or closed-loop control involves a process model which predict...
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WO/2021/224707A1 |
The present invention relates to a manufacturing method of a steel strip, a steel strip with controlled decarburized depth, a spot welded joint and the use of said steel strip or said spot welded joint. This invention is particularly wel...
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WO/2021/223760A1 |
A High-strength high-temperature alloy for thermal power units and a processing technique therefor. The high-temperature alloy comprises the following components by mass percentage: 0.05 to 0.08% of C, 14 to 17％ of Cr, ≤ 0.5% of Mn, ...
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WO/2021/224662A1 |
The present invention relates to a manufacturing method of a steel strip, a steel strip, a resistance spot welded joint and the use of said steel strip or said spot welded joint. This invention is particularly well suited for the automot...
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WO/2021/223734A1 |
A high-strength-and-toughness and high-strength-ductility-product automobile steel and a preparation method therefor. The present invention belongs to the technical field of the manufacturing of high-strength-and-toughness and high-stren...
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WO/2021/224423A1 |
The present disclosure relates to a new bainitic steel to be used for manufacturing a drill component, such as a drill rod, or in any other components wherein such steels are useful. The present disclosure further relates to a drill comp...
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WO/2021/225103A1 |
Provided is a duplex stainless steel seamless pipe having high toughness and demonstrating excellent resistance to HISC. This duplex stainless steel seamless pipe has the chemical compositions disclosed in the specification and a microst...
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WO/2021/223660A1 |
A process for smelting steel for an ultrafine carborundum wire, comprising: 1) in a vacuum induction furnace, using pure iron and low-phosphorus pig iron as raw materials to be melted into molten steel under the protection of argon; vacu...
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