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Matches 1 - 50 out of 34,941

Document Document Title
WO/2019/117756A1
This invention relates to metallurgy, more specifically, to rolling, and can be used for the production of rolled coils of low- alloy pipe steel prossessing high corrosion resistence. A method of manufacturing low-alloyed coiled strip of...  
WO/2019/117465A1
Disclosed are: a duplex stainless steel, which does not crack during a hole expansion process since the interphase hardness difference between an austenite phase and a ferrite phase is minimized; and a manufacturing method therefor. A du...  
WO/2019/117536A1
The present invention relates to a steel sheet for a pressure vessel having excellent tensile strength and low-temperature impact resistance, and a method for producing the same. An embodiment of the present invention provides a steel sh...  
WO/2019/117432A1
Disclosed are a hot rolled annealed ferrite-based stainless steel sheet having excellent impact properties and a thickness of at least 6 mm, and a method for producing same. A ferrite-based stainless steel having excellent impact toughne...  
WO/2019/117095A1
A multilayer electromagnetic steel sheet which achieves both low frequency iron loss and high magnetic flux density is provided. In this multilayer electromagnetic steel sheet comprising an inner layer and a surface layer provided on bot...  
WO/2019/115551A1
The invention relates to a high-strength, hot-rolled flat steel product with high edge crack resistance and simultaneously high bake-hardening potential made of a steel with a yield strength Rp 0.2 of 660 to 820 MPa, a BH2 value of more ...  
WO/2019/117096A1
Provided is a multilayer electromagnetic steel sheet which has achieved a good balance between low iron loss at high frequencies and high magnetic flux density. A multilayer electromagnetic steel sheet which is composed of an inner layer...  
WO/2019/116520A1
A steel material which has a chemical composition that contains, in mass%, 0.01-0.20% of C, 0.01-1.00% of Si, 0.05-3.00% of Mn, 0-0.050% of P, 0-0.0100% of S, 0.05-0.25% of Sn, 0-0.100% of Al, 0.0005-0.0100% of N, 0.0001-0.0100% of O, 0-...  
WO/2019/117089A1
A multilayer electromagnetic steel sheet which achieves both low high-frequency iron loss and high magnetic flux density is provided. In this multilayer electromagnetic steel sheet comprising an inner layer and surface layer provided on ...  
WO/2019/117456A1
The purpose of one aspect of the present invention is to provide a method for manufacturing a high Cu stainless steel by using a twin roll strip casting process in the manufacture of stainless steel containing a large amount of Cu, there...  
WO/2019/111028A1
The invention deals with a cold-rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent:: C : 0.03 - 0.25 % Mn : 3.5 - 8 % Si : 0.1 - 2.0 % Al : 0.03 - 1.2 % Ti ≤ 0.080 % Nb ≤ 0.080 % V...  
WO/2019/111083A1
The invention dea!s with a cold-rolled and heat-treated steei sheet, made of a steei having a composition comprising, by weight percent:: C : 0.03 - 0.25 % Mn : 3.5 - 8 % Si : 0.1 - 2,0 % Ai : 0.03 - 2.0 % Ti < 0.080 % Nb≤ 0.080 % V < ...  
WO/2019/112152A1
Disclosed is an austenitic stainless steel having excellent formability and season cracking resistance, the austenitic stainless steel preventing defect such as season cracking or delayed fracture from occurring even after three- or more...  
WO/2019/112012A1
Provided is a high-Mn steel having exceptional high strength and low-temperature toughness, and furthermore having exceptional low-temperature CTOD characteristics. The high-Mn steel has: a component composition comprising, in percent by...  
WO/2019/111029A1
The invention deals with a cold-rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent:: C : 0.03 - 0.25 % Mn : 3.5 - 8 % Si : 0.5 - 2.0 % Al : 0.03 - 1.2 % Ti < 0.080 % Nb < 0.080 % V < 0...  
WO/2019/111084A1
The invention deals with a cold-rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent:: C : 0.03 - 0.25 % Mn : 3.5 - 8 % Si : 0.5 - 2.0 % Ai : 0,03 - 2.0 % Ti < 0.080 % Nb < 0.080 % V < 0...  
WO/2019/110359A1
Hot-rolled steel having a tensile strength of at least 950MPa and a microstructure comprising bainite at an area ratio of 70% or more; the balance being: martensite at an area ratio of 30%or less, and optionally ferrite at an area ratio ...  
WO/2019/105055A1
An S355G10+M wide and heavy steel plate having low-temperature toughness for ocean engineering, comprising the chemical components in percentage by mass: C: 0.04-0.08%; Mn: 1.30-1.60%; Si: 0.10-0.30%; P: ≤0.015%; S: ≤0.003%; Nb: 0.01...  
WO/2019/105041A1
Disclosed are a non-oriented electrical steel sheet with excellent magnetism and a manufacturing method therefor, wherein the mass percentage of the chemical components thereof are: C: 0-0.05%; Si: 2.1-3.2%,Mn: 0.2-1.0%, P: 0-0.2...  
WO/2019/107751A1
The present invention relates to a ferritic stainless steel for an automotive exhaust system, having excellent sulfuric acid corrosion resistance, and a manufacturing method therefor. The ferritic stainless steel for an automotive exhaus...  
WO/2019/107409A1
Provided is a method for manufacturing a seamless steel tube, whereby coarsening of crystal grains can be suppressed in a boring machine. The method for manufacturing a seamless steel tube according to the present embodiment is provided ...  
WO/2019/107700A1
The present invention provides a high strength steel material having excellent hydrogen-induced cracking resistance and low-temperature impact toughness and a manufacturing method therefor, the steel material comprising, by weight %, 0.0...  
WO/2019/108037A1
The present invention relates to: a hot rolled steel sheet for a non-oriented electrical steel sheet, manufactured by a compact endless casting and rolling process; a non-oriented electrical steel sheet using the same; and manufacturing ...  
WO/2019/102817A1
Provided is a corrosion-resistant steel material for a deck plate and a bottom plate of a crude oil tanker which can be used for either the deck plate or the bottom plate and has excellent general corrosion resistance as well as local co...  
WO/2019/101547A1
The invention relates to a method for producing Q&P steel and is characterized by the use of a coolant that contains a liquid salt and is used at a steel initial temperature between 550 and 900° C and an end temperature below 450° C.  
WO/2019/102584A1
In order to provide a forged heat-treated product of case-hardened steel having good machinability with no increase in austenite grain size during a carburization treatment in a practical temperature range, the present invention comprise...  
WO/2019/096734A1
The present invention relates to a grain-oriented electrical steel strip, wherein, during the production thereof, high-temperature annealing takes place in a temperature range of 700 to 900°C at a particular dew point DP, a method for t...  
WO/2019/098480A1
Provided are a cryogenic steel plate and a method for manufacturing same, the cryogenic steel plate comprising, in wt%, 0.04-0.08% carbon (C), 8.9-9.3% nickel (Ni), 0.6-0.7% manganese (Mn), and 0.2-0.3% silicon (Si), and 50ppm or less of...  
WO/2019/096616A1
Method for the preoxidation of high-strength strip steel. The invention relates to an improved method for the preoxidation of high-strength strip steel in a reaction chamber arranged in a furnace chamber. The reaction chamber is sealed a...  
WO/2019/096736A1
The present invention relates to a grain-oriented electrical steel strip having a magnesium silicate layer on at least one surface, wherein at least one peak in the range of 960 to 975 cm-1 (A) and at least one peak in the range of 976 t...  
WO/2019/096735A1
The present invention relates to a grain-oriented electrical steel strip, wherein, during the production thereof, high-temperature annealing takes place in a temperature range of 700 to 900°C and the electrical steel strip, during this ...  
WO/2019/098233A1
Provided is a two-phase stainless steel in which the occurrence of pitting is suppressed. A two-phase stainless steel according to the present disclosure contains: a chemical composition that comprises, in terms of % by mass, more than 2...  
WO/2019/098483A1
Provided are a low-temperature steel plate having excellent impact toughness, and a method for manufacturing same, the low-temperature steel plate comprising, in wt%, 0.02-0.08% C, 6.0-7.5% Ni, 0.5-0.9% Mn, 0.03-0.15% Si, 0.02-0.3% Mo, a...  
WO/2019/093786A1
The present invention relates to a high-nitrogen austenitic stainless steel in which the solid solubility of nitrogen has been maximized, and a method for manufacturing same.  
WO/2019/092483A1
A cold rolled and heat treated steel sheet having a composition comprising of the following elements, expressed in percentage by weight 0.10 %≤ Carbon ≤ 0.5 %, 1 % ≤ Manganese ≤ 3.4 %, 0.5 % ≤ Silicon ≤ 2.5 %, 0.03 % ≤ Alum...  
WO/2019/093689A1
Provided is a method for producing a high-strength, low-toughness cold-rolled steel sheet having excellent fracture properties. A cold-rolled steel sheet according to the present invention contains, in wt%, 0.30-0.70% of C, 0.2-1.0% of M...  
WO/2019/092481A1
A cold rolled heat treated steel sheet having a composition comprising of the following elements, expressed in percentage by weight 0.1 % ≤ Carbon ≤ 0.5 %, 1 % ≤ Manganese ≤ 3.4 %, 0.5 %≤ Silicon ≤ 2.5 %, 0.03 %≤ Aluminum ...  
WO/2019/092577A1
A cold rolled and heat treated steel sheet having a composition comprising of the following elements, expressed in percentage by weight 0.10 % ≤ Carbon ≤ 0.5 %, 1 % ≤ Manganese ≤ 3.4 %, 0.5 % ≤ Silicon ≤ 2.5 %, 0.03 % ≤ Alu...  
WO/2019/093399A1
The present invention provides a plate-shaped steel material in which both high strength and high rigidity are achieved by using rolling processing by a large-diameter work roll to create large, non-uniform deformation. A steel plate acc...  
WO/2019/093740A1
Disclosed are: an 80 Kg-class austenite-based lightweight steel having excellent impact characteristics; and a manufacturing method therefor. An austenite-based lightweight steel according to a first embodiment of the present invention c...  
WO/2019/092482A1
A cold rolled and heat treated steel sheet having a composition comprising of the following elements, expressed in percentage by weight:0.10 % < Carbon < 0.5 %, 1 % < Manganese < 3.4%, 0.5 % < Silicon < 2.5 %, 0.03 % < Aluminum < 1.5 %, ...  
WO/2019/092576A1
A cold rolled and heat treated steel sheet having a composition comprising of the following elements, expressed in percentage by weight:0.10 % ≤ Carbon ≤ 0.5 %,1 % ≤ Manganese ≤ 3.4%, 0.5 % ≤ Silicon ≤ 2.5 %, 0.03 % ≤ Alumi...  
WO/2019/092578A1
A cold rolled heat treated steel sheet having a composition comprising of the following elements, expressed in percentage by weight 0.1 % ≤ Carbon ≤ 0.5 %, 1 % ≤ Manganese ≤ 3.4 %, 0.5 % ≤ Silicon ≤ 2.5 %, 0.03 % ≤ Aluminum...  
WO/2019/093650A1
The present invention relates to an automotive steel sheet and, more specifically, provides: an ultrahigh-strength and high-ductility steel sheet ensuring ultrahigh strength and high ductility and, simultaneously, having excellent cold f...  
WO/2019/086940A1
A continuous induction heat treating apparatus is provided including a conveyor path defining an axis for a workpiece to be conveyed through the apparatus. The apparatus includes an induction heating station positioned along the conveyor...  
WO/2019/087318A1
Provided are: a nickel-containing steel sheet for low-temperature applications which has a prescribed chemical composition, a residual austenite volume fraction of 3.0-20.0 vol% at a position 1.5 mm from the surface in the thickness dire...  
WO/2019/088104A1
Provided is a hot-rolled steel sheet that has a prescribed composition and that includes a two-phase structure in which a martensite phase has a structural fraction of 10-40% in terms of area fraction, and in which a ferrite phase has a ...  
WO/2019/087761A1
Provided are a ferritic stainless-steel sheet having superior toughness and exceptional corrosion resistance, and a method for manufacturing the ferritic stainless-steel sheet. This ferritic stainless-steel sheet has a component composit...  
WO/2019/088190A1
Provided is a hot forged steel having high strength and excellent low-temperature toughness. This hot forged steel contains, in mass%, 0.14-0.20% of C, 0.20-1.00% of Si, 1.00-1.90% of Mn, at most 0.030%of P, at most 0.030% of S, 0.16-0.3...  
WO/2019/088206A1
The present invention proposes a means for ensuring low-temperature toughness at -40°C and high strength of at least YP355MPa in the flange section of H-shaped steel without increasing production costs. The steel has a component composi...  

Matches 1 - 50 out of 34,941