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Matches 1 - 50 out of 34,026

Document Document Title
WO/2018/074462A1
Provided are: an oriented electromagnetic steel sheet with outstanding coating adhesion and magnetic properties after stress relief annealing; and a method for manufacturing the oriented electromagnetic steel sheet. The oriented electrom...  
WO/2018/074531A1
A hot-rolled steel sheet for manufacturing electrical steel having a scale layer on the surface thereof, wherein the lightness L* in accordance with JIS Z 8781-4:2013 of the steel sheet surface satisfies the expression 30 ≤ L* ≤ 50 a...  
WO/2018/075882A1
A process for making an article of manufacture from elongated strip of a soft-magnetic Fe-Co alloy is disclosed. The process includes a prefabrication annealing step in which the elongated strip is annealed before it is fabricated into p...  
WO/2018/073117A1
The invention relates to a steel strip, sheet or blank used for painted parts, wherein the steel strip, sheet or blank is optionally metallic coated. According to the invention the steel is an Ultra Low Carbon (ULC) steel type having a c...  
WO/2018/072076A1
A toothed rack steel plate having a thickness of 177.8 mm and manufactured by a continuous casting billet and a manufacturing method therefor. Chemical components, in percentage by weight, are: C: 0.11-0.15%, Si: 0.15-0.35%, Mn: 0.95-1.2...  
WO/2018/074109A1
Provided is a high-strength seamless steel pipe for oil wells that has excellent sulfide stress corrosion cracking resistance, wherein: the composition is, in mass%,0.20 to 0.50% C, 0.05 to 0.40% Si, 0.3 to 0.9% Mn, at most 0.015% P, at ...  
WO/2018/074295A1
Provided is hot-rolled-sheet annealing equipment which subjects a Si-containing hot-rolled steel sheet to hot-rolled-sheet annealing and which has a heating zone, a soaking zone and a cooling zone, wherein: the hot-rolled-sheet annealing...  
WO/2018/073115A1
The invention relates to a steel strip, sheet or blank used for painted parts, wherein the steel strip, sheet or blank is optionally metallic coated. According to the invention, the steel has grains with an essentially equi-axed median g...  
WO/2018/074743A1
The present invention relates to a high-strength Fe-Cr-Al-Ni multiplex stainless steel and a manufacturing method therefor. The multiplex stainless steel comprises 35 to 67 wt % of iron (Fe), 13 to 30 wt % of chrome (Cr), 15 to 30 wt % o...  
WO/2018/074486A1
Provided are: a grain-oriented electromagnetic steel sheet exhibiting excellent coating film adhesion and excellent magnetic characteristics; and a method for producing this grain-oriented electromagnetic steel sheet. This grain-oriented...  
WO/2018/074164A1
Provided are: a hot-rolled and annealed ferritic stainless steel sheet that has sufficient corrosion resistance and that can be suppressed from cracking when punched into a thick-walled flange; and a method for producing the same. This h...  
WO/2018/069954A1
This steel wire material has a chemical component within a prescribed range and has a structure in the center section thereof that includes 80–100 area% pearlite and a total of at least 0 area% and less than 20 area% of proeutectoid fe...  
WO/2018/070753A1
One aspect of the present invention relates to a cold rolled steel sheet for a flux cored wire, comprising, by wt%, 0.01-0.15% of C, 0.1-0.5% of Mn, 0.05% or less of Si (excluding 0%), 0.0005-0.01% of P, 0.008% or less of S (excluding 0%...  
WO/2018/070606A1
The present invention relates to an antioxidant, a method for processing a steel material, and a rolled product manufactured by using the same method, the method comprising the steps of: preparing a steel material; preparing an antioxida...  
WO/2018/066689A1
Provided are a steel material and a steel pipe for oil wells, which have excellent SSC resistance and high strength, namely a yield strength of 862 MPa or more but less than 965 MPa. A steel material according to the present invention ha...  
WO/2018/066997A1
The purpose of the present invention is to provide a thermal treatment immediately after hot forging low- and medium-carbon steels to achieve a ferrite-pearlite laminar crystalline structure, through a process that comprises three steps:...  
WO/2018/067554A1
The residual ductility of currently available press hardened steel is approximately six percent. This characteristic of the material is primarily due to the fully martensitic microstructure in the hot stamped condition. The present alloy...  
WO/2018/061191A1
This steel for cold forging has a predetermined chemical composition and satisfies d + 3σ ≤ 10. 0 and SA/SB < 0. 30. The steel includes sulfides having a circle equivalent diameter of 1. 0-10. 0 μm at 1200 particles/mm2 or more in th...  
WO/2018/061197A1
In order to provide a forged heat-treated product of case hardening steel that has good machinability and that does not cause austenite grain coarsening during carburizing treatment in a practical temperature range, a forged heat-treated...  
WO/2018/060454A1
The invention relates for a method for partial hardening of an austenitic steel by utilizing during cold deformation the TWIP (Twinning Induced Plasticity), TWIP/TRIP or TRIP (Transformation Induced Plasticity) hardening effect. Cold def...  
WO/2018/062618A1
Disclosed are a ferritic stainless steel having excellent sound absorption properties for an exhaust system heat exchanger and a method of manufacturing same. The ferritic stainless steel having excellent sound absorption properties for ...  
WO/2018/062545A1
A method for producing a ferritic heat-resistant steel weld structure is provided which is capable of inhibiting type IV damage without the addition of B in high concentration, and which exhibits excellent on-site executability. The pres...  
WO/2018/061396A1
In order to provide a forged heat-treated product of case hardening steel that has good machinability and that does not cause austenite grain coarsening during carburizing treatment in a practical temperature range, a forged heat-treated...  
WO/2018/061642A1
The hot-rolled steel according to an embodiment of the present invention has a prescribed chemical component that comprises 0.0001–0.0050 mass% of Bi. At least 90 area% of the metal structure is made of ferrite and pearlite. The averag...  
WO/2018/054787A1
Cold-rolled and heat-treated steel sheet, having a composition comprising, by weight percent: 0.10% ≤ C ≤ 0.40%, 3.5% ≤ Mn ≤ 8.0%, 0.5% ≤ Si ≤ 2.5%, 0.003% ≤ Al ≤ 3.0%, with Si+Al ≥ 0.8%, 0.001% ≤ Mo ≤ 0.5%, S ≤ 0...  
WO/2018/055937A1
Provided is a steel pipe which is for an accumulator and has excellent thermal cracking resistance. The steel pipe for an accumulator has a specific composition, and has a metallic structure in which the average particle size of prior au...  
WO/2018/054742A1
The invention relates to a method enabling the production of flat steel products which, after a 5% biaxial deformation on one of the surfaces, have a Wsa(1-5) value of <0.35 μm, a planar anisotropy Δr of -0.5 - +0.5, and a nano-hardnes...  
WO/2018/055098A1
A method to manufacture a hot-rolled high-strength steel sheet or strip with tensile strength of 570 MPa or higher, or preferably 780 MPa or higher, or even more preferably 980 MPa or higher, with an excellent combination of tensile elon...  
WO/2018/056792A1
An aspect of the present invention relates to a cold-rolled steel plate for hot forming, which is excellent in corrosion-resistance and spot-weldability, contains, by weight %, C: 0.1-0.4%, Si: 0.5-2.0%, Mn: 0.01-4.0%, Al: 0.001-0.4%, P:...  
WO/2018/056379A1
The purpose of the present invention is to provide a grain-oriented electrical steel sheet that has outstanding magnetic properties and that can be manufactured through two-dimensional recrystallization orientation control by coil anneal...  
WO/2018/055425A1
Cold-rolled and heat-treated steel sheet, having a composition comprising, by weight percent: 0.10% ≤ C ≤ 0.40%, 3.5% ≤ Mn ≤ 8.0%, 0.5% ≤ Si ≤ 2.5%, 0.003% ≤ Al ≤ 3.0%, with Si+AI ≥ 0.8%, 0.001 % ≤ Mo ≤ 0.5%, S ≤ ...  
WO/2018/050637A1
The invention relates to a method for producing a flexibly rolled flat steel product made of a high-strength manganese steel and having final thicknesses that vary as required from section to section. In order to achieve a high maximum d...  
WO/2018/050387A1
The invention relates to a method for producing a component from a medium manganese flat steel product having 4 to less than 10 wt% Mn, 0.0005 to 0.9 wt% C, 0.02 to 10 wt% Al, the remainder iron, including unavoidable steel-accompanying ...  
WO/2018/050634A1
The invention relates to a method for producing a component from a medium-manganese flat steel product with 4 to 12 wt% Mn, preferably more than 5 to less than 10 wt% Mn, and with TRIP/TWIP effect. In order to improve the degrees of defo...  
WO/2018/050683A1
The invention relates to a method for producing a flat steel product made of a medium manganese steel having a TRIP/TWIP effect. The aim of the invention is to achieve an improvement in the yield strength when a sufficient residual defor...  
WO/2018/047787A1
[Problem] To provide an Fe-based shape memory alloy material which has excellent workability, excellent super elasticity, and an excellent shape memory effect, and also has remarkably low temperature dependency and excellent oxidation re...  
WO/2018/047955A1
Provided are: a case-hardened steel suitable as a material for manufacturing a mechanical structural part having high rotary bending fatigue strength and impact fatigue strength at relatively low cost; and a method for producing the case...  
WO/2018/043570A1
Provided are a steel and an oil well steel pipe which have excellent SSC resistance, even in a high pressure H2S environment. This steel contains 0.15-0.45% of C, 0.10-1.0% of Si, 0.10-0.8% of Mn, at most 0.050 of P, at most 0.010% of S,...  
WO/2018/043214A1
Provided is a duplex stainless steel having excellent corrosion resistance, in which excellent carbon dioxide corrosion resistance, excellent sulfide stress corrosion cracking resistance, and excellent sulfide stress cracking resistance ...  
WO/2018/040859A1
A 70 mm-thickness Q960E ultra high strength steel production method comprises steps of slab heating, quenching and tempering. A chemical composition of the steel comprises C: 0.14-0.16%,Si: 0.2-0.3%,Mn: 1.1-1.2%,P ≤ 0.008%,S ...  
WO/2018/043067A1
A thick steel sheet: which contains C: 0.04-0.06 mass%, Si: 0.35-0.45 mass%, Mn: 1.49-1.59 mass%, P: greater than 0 mass% to 0.01 mass%, S: greater than 0 mass% to 0.002 mass%, Cu: 0.23-0.33 mass%, Al: 0.02-0.06 mass%, Ni: 0.24-0.34 mass...  
WO/2018/041089A1
A cold-rolled steel plate (1) and a manufacturing method therefor. The chemical composition of the steel plate (1) in percentage by weight is: C 0.15-0.25%, Si 1.50-2.50%, Mn 2.00-3.00%, P ≤ 0.02%, S ≤ 0.01%, Al 0.03-0.06%, N ≤ 0.0...  
WO/2018/041088A1
A cold-rolled high-strength steel plate having excellent phosphating performance and formability and a manufacturing method therefor. The chemical composition of the steel plate is, in percentage by weight, C 0.01-0.20%, Si 1.50-2.50%, M...  
WO/2018/043491A1
This rolled H-beam is characterized in that: the average of the top 5% of the Mn concentrations in the most brittle zone of a flange is not more than 1.6 times the Mn concentration at a position that is located 1/6 in the width direction...  
WO/2018/036918A1
The invention relates to a method for producing a high-strength steel strip with a TRIP/TWIP effect, which method is cost-effective and with which method the steel strip has improved properties for further processing, in particular a goo...  
WO/2018/036379A1
Provided is a method for manufacturing a low-cost, high strength-toughness thin gauge 9Ni steel plate. Weight percentages of a molten steel composition are: C: 0.03-0.06%, Si: 0.1-0.2%, Mn: 0.5-0.8%, Ni: 8.6-9.1%, Mo: 0.02-0.05%, Als: 0....  
WO/2018/036347A1
Thermoforming steel rolled directly from a medium thin slab and having tensile strength greater than or equal to 1500 MPa, comprising the following components (weight%): C: 0.21%-0.25%, Si: 0.26%-0.30%, Mn: 1.0%-1.3%, P≤0.01%, S≤0.00...  
WO/2018/038197A1
The purpose of the present invention is to provide a sulfuric acid dew point corrosion-resistant steel which simultaneously achieves excellent resistance to sulfuric acid dew point corrosion and productivity, and which also has excellent...  
WO/2018/036345A1
Provided is a hot forming steel directly rolled through a medium and thin slab and having tensile strength larger than or equal to 1900 MPa. The steel comprises the following components by weight percent: C: 0.31~0.40%, Si: 0.36~0.44%, M...  
WO/2018/034071A1
A thick steel plate including 0.02%–0.10% by mass C, 1.0%–2.0% by mass Mn, 0%–0.05% by mass Nb, 0%–0.05% by mass Ti, 0.01%–0.06% by mass Al, 0.1%–0.6% by mass Si, and 0.1%–0.6% by mass Cu. The total Si and Cu content is at ...  

Matches 1 - 50 out of 34,026