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WO/2024/075433A1 |
Provided is a seamless steel pipe in which the difference between the strength at full wall thickness and the strength in a post-cutting state is low. This seamless steel pipe has a prescribed chemical composition. Fn1 represented by for...
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WO/2024/075761A1 |
Provided is a duplex stainless steel material having excellent whole surface corrosion resistance in a high-temperature, high-pressure, strong acidic corrosive environment, and excellent pitting corrosion resistance in a high-temperature...
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WO/2024/074465A1 |
A first embodiment relates to a method for producing a CoFe alloy for a laminated core. According to the method, a stack of a plurality of laminations made of a CoFe alloy with 5 to 55 wt.% Co is thermally treated at a temperature (T1) i...
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WO/2024/075486A1 |
This mechanical component is made of steel that is subjected to quenching and tempering, the mechanical component comprising a carbonitrided layer on the surface thereof. The steel contains 0.13-0.58 mass% inclusive of C, 0.15-0.35 mass%...
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WO/2024/075788A1 |
The purpose of the present invention is to provide a grain-oriented electromagnetic steel sheet in which iron loss is improved and which suppresses a decrease in productivity in magnetic domain control in which a laser groove is formed.ã...
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WO/2024/075258A1 |
A seamless steel tube having an inner surface and an outer surface, and having a chemical composition of, by mass, 0.06% or less of C, 0.55% or less of Si, 0.70-1.40% of Mn, 0.020% or less of P, 0.0005-0.020% of S, 0.005% or less of N, 0...
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WO/2024/076133A1 |
The present invention relates to an aluminum-plated steel sheet for use in automobiles and the like, a hot press-formed member manufactured using same, and methods for manufacturing same.
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WO/2024/075621A1 |
1 < Ra(D)/Ra(S) ≦ 12 is satisfied in each of at least one pair of block opposing end faces (for example, a pair of block opposing end faces (111a, 111i)). Here, Ra(D) is the surface roughness of the block opposing end face in the stack...
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WO/2024/075443A1 |
The present invention provides: an Fe-Cr-Al-based alloy powder for additive manufacturing that has improved high-temperature oxidation resistance and excellent malleability and is capable of suppressing cracking; an Fe-Cr-Al-based alloy ...
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WO/2024/075789A1 |
An objective of the present invention is to provide a grain-oriented electromagnetic steel sheet that exhibits improved iron loss in magnetic domain control for forming laser grooves in a steel sheet that has been subjected to decarburiz...
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WO/2024/070647A1 |
Provided is an austenitic stainless steel sheet which has a chemical composition comprising, in % by mass, 0.150% or less of C, 2.0% or less of Si, 3.00% or less of Mn, 0.060% or less of P, 0.0080% or less of S, 16.0 to 22.0% of Cr, 3.00...
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WO/2024/070052A1 |
The present disclosure provides a high-strength steel plate having an improved post-molding appearance.　The steel plate of the present disclosure has a specific chemical composition and is characterized by comprising a metal structure ...
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WO/2024/070890A1 |
Provided are: a steel sheet having high strength, excellent in terms of ductility and hole expansibility, and having highly stable mechanical properties along the longitudinal direction of the coil; and a method for producing the steel s...
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WO/2024/070413A1 |
Provided is a martensitic free-cutting stainless steel bar material characterized by having chemical components including 0.10-0.60% of C, 0.1-2.0% of Si, 0.1-3.0% of Mn, 0.15-0.40% of S, 0.10% or less of P, and 11.0-16.0% of Cr, the bal...
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WO/2024/070278A1 |
Provided are: continuous annealing equipment capable of swiftly responding to a fluctuation in material characteristics and minimizing a fluctuation in mechanical characteristics of a product; a continuous annealing method; a cold-rolled...
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WO/2024/071354A1 |
The purpose of the present invention is to provide a steel tube and a production method therefor, the steel tube being suitable for steel structures used in high pressure hydrogen gas environments, such as line pipes for 100% hydrogen ga...
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WO/2024/071353A1 |
The purpose of the present invention is to provide: a steel material which has excellent fatigue characteristics in a high-pressure hydrogen gas environment and is suitable for use in a steel structure, which is used in the high-pressure...
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WO/2024/071352A1 |
The purpose of the present invention is to provide a steel pipe for a line pipe and a method of manufacturing the same, and a steel material for a line pipe and a method of manufacturing the same, the steel pipe for a line pipe being sui...
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WO/2024/071378A1 |
This non-oriented electromagnetic steel sheet includes a steel sheet and the chemical composition of the steel sheet contains, in mass%, 0.0030% or less of C, 1.0-3.5% of Si, 0.10-2.00% of Al, 0.1-2.0% of Mn, 0.20% or less of P, 0.0030% ...
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WO/2024/070489A1 |
This non-oriented electromagnetic steel sheet contains, in mass%: C, 0.005% or less; Si, 2.00% to 4.50%; Mn, 0.01% to 5.00%; Al, 0.03% to 5.00%; SE, which is the total of one or more of S, Se, and Te, more than 0% but no more than 0.005%...
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WO/2024/070807A1 |
This non-oriented electromagnetic steel sheet comprises a base steel sheet and an insulating coating film, in which the base steel sheet has a specified chemical composition, the base steel sheet has a thickness of 0.10 mm to 0.35 mm inc...
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WO/2024/070987A1 |
Provided are: an Fe-based alloy which is not susceptible to cracking and is expected to have toughness and heat crack resistance; an alloy member; a product; and a method for producing an alloy member.　An Fe-based alloy is characterize...
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WO/2024/071522A1 |
The present invention provides an ultrahigh-strength steel sheet, which comprises, by weight%, 0.1% to 0.30% of carbon (C), 1.0% to 2.0% of silicon (Si), 1.5% to 3.0% of magnesium (Mg), 0% (exclusive) to 0.05% of aluminum (Al), 0% (exclu...
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WO/2024/070889A1 |
Provided are: a steel sheet having high strength, excellent in terms of ductility and hole expansibility, and having highly stable mechanical properties along the sheet width direction; a member; and methods for producing the steel sheet...
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WO/2024/070493A1 |
This ferritic stainless steel material for battery components has a composition which contains, on a mass basis, 0.001% to 0.050% of C, 0.01% to 2.00% of Si, 0.01% to 2.00% of Mn, 0.010% to 0.050% of P, 0.0001% to 0.0100% of S, 10.0% to ...
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WO/2024/066997A1 |
Provided are 290 Mpa-grade low-yield-strength steel used in a low-temperature harsh environment, and a manufacturing method therefor, relating to the technical field of steel manufacturing. The low-yield-strength steel comprises the foll...
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WO/2024/070192A1 |
Provided is a weld joint having relatively thin high-strength steel plates as a base material and excellent room-temperature fracture toughness. In the present invention, the plate thickness of the base-material steel plates is 0.8-10 mm...
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WO/2024/071356A1 |
The purpose of the present invention is to provide a line pipe steel material that is suitable for use in a steel structure used in a high-pressure hydrogen gas environment, such as a line pipe for 100% hydrogen gas or a natural gas (nat...
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WO/2024/071628A1 |
The present invention provides a method for manufacturing a non-oriented electrical steel sheet, the method comprising the steps of: hot rolling a slab containing, by weight%, carbon (C): 0% (exclusive) to 0.005% (inclusive), silicon (Si...
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WO/2024/070191A1 |
Provided is a welded joint which excels in normal temperature toughness and the matrixes of which are relatively thin and high-strength steel sheets. The thickness of each of the matrix steel sheets is 0.8-10 mm. Among the matrix steel s...
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WO/2024/070074A1 |
Provided is an oriented electromagnetic steel sheet that can effectively inhibit generation of a magnetizing inrush current when used as a material of an iron core for a transformer. In the oriented electromagnetic steel sheet having bee...
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WO/2024/067480A1 |
Disclosed is a low-alloy steel. The low-alloy steel comprises, in addition to Fe and inevitable impurities, the following chemical elements in percentages by mass: C: 0.02%-0.1ï¼…, Si: 0.1%-1.5ï¼…, Mn: 0.10%-1.8ï¼…, Cr: 1.0%-5.5ï¼…, Ni: ...
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WO/2024/072023A1 |
The present invention relates to a cold rolled steel sheet having excellent strength and formability, and a method for manufacturing same.
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WO/2024/070839A1 |
Provided are a high aging-efficiency maraging steel and a method for producing the same.　The maraging steel comprises: a component composition that includes, in mass%, C at 0.02% or less, Si at 0.1% or less, Mn at 0.1% or less, P at 0....
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WO/2024/070279A1 |
Provided are: a continuous annealing facility in which a steel sheet phase fraction under a high-temperature condition is predicted with high accuracy and the fluctuations in the predicted phase fraction is rapidly reflected in an anneal...
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WO/2024/071422A1 |
This steel plate has a given chemical composition and has an α value of 1.00-1.50 mass%, a β value of 10.0-15.0, a γ value of 0.70-1.50 mass%, a Ceq value of 0.550-0.620 mass%, a yield strength of 670-870 N/mm2, a tensile strength of ...
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WO/2024/070784A1 |
The purpose of the present invention is to provide a stainless steel powder that can be used to produce a stainless steel member having high strength, excellent low-temperature toughness, and excellent corrosion resistance in a high-temp...
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WO/2024/069251A1 |
The present disclosure discloses a method for producing high strength wear and corrosion resistant grey cast iron. The method starts with melting of iron sources to form molten alloy. Then, composition of Fe-Nb and Fe-Al are added into t...
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WO/2024/071357A1 |
The purpose of the present invention is to provide: a steel material for line pipes and a production method therefor, the steel material for line pipes being suitable for steel structures used in high pressure hydrogen gas environments, ...
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WO/2024/068957A1 |
The invention relates to a method for producing a steel strip from a high-strength multiphase steel, which steel strip has a tensile strength of at least 700 MPa in the longitudinal direction, in which method a rolled wide strip made of ...
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WO/2024/066987A1 |
The economical hydrogen gas conveying pipeline steel, which comprises the following components in wt%: C: 0.03-0.08%, Si: ≤ 0.15%, Mn: 0.53-1.19%, P: ≤ 0.012%, S: ≤ 0.0015%, Ti: 0.010-0.080%, Al: 0.025-0.048%, N: ≤ 0.0045%, and O...
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WO/2024/071358A1 |
The purpose of the present invention is to provide a high-strength line pipe steel material that has excellent fracture toughness in hydrogen in a high-pressure hydrogen gas environment, and that is suitable for use for a steel structure...
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WO/2024/063163A1 |
This grain-oriented electrical steel sheet comprises a base steel sheet, a forsterite coating film formed on the surface of the base steel sheet, and an insulation film formed on the surface of the forsterite coating film, wherein: the c...
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WO/2024/063011A1 |
The purpose of the present invention is to provide a welded member and a manufacturing method therefor. In a welded member according to the present invention, the total sheet thickness of a sheet combination and the minimum thickness of ...
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WO/2024/062933A1 |
Provided is a method for producing hot work tool steel that has a fine annealed structure even if a cross-sectional size is large.　This method for producing hot work tool steel having a cross-sectional area of at least 200,000 mm2 incl...
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WO/2024/061729A1 |
The present invention relates to a method for the production of a hot-rolled flat steel product for use in pipe production.
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WO/2024/063108A1 |
The present invention provides a martensitic stainless steel material which has high strength, excellent SSC resistance, and excellent toughness at low temperatures. A martensitic stainless steel material according to the present disclos...
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WO/2024/062686A1 |
Provided is a low-yield-ratio hot-rolled steel sheet having excellent strength and low-temperature toughness. The steel sheet has a predetermined component composition. The steel structure of the sheet thickness center part has a main ph...
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WO/2024/062197A1 |
The invention relates to a method for manufacturing a steel part (10) for an aircraft, the method comprising the welding of at least two steel elements (12, 14) to one another so as to form this part (10), the application of a resistance...
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WO/2024/061035A1 |
Provided in the present invention is a preparation method for an arsenic-iron alloy. The preparation method comprises the steps of: S1, subjecting arsenic powder and iron powder at a molar ratio of (0.1-2) : 1 to a ball-milling treatment...
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