| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 09/23/2010 | US20100236668 High strength steel pipe for line pipe superior in low temperature toughness and high strength steel plate for line pipe and methods of production of the same |
| 09/23/2010 | DE102009001651A1 High-pressure component for a common rail fuel injection system, where the component is made of a hardenable material, comprises an outer area and an inner area, which is flowed through by a fluid remaining under high pressure |
| 09/22/2010 | EP2229461A1 An axle from a seamless tube for railroad vehicles, and a process for manufacturing an axle from a seamless steel tube for railroad vehicles |
| 09/22/2010 | EP1578547B1 Method for increasing a fatigue strength of a metallic component, which is provided with at least one cavity, while subjecting it to a cyclic inner pressure load |
| 09/22/2010 | CN1833043B Austenitic stainless steel for hydrogen gas and method for production thereof |
| 09/22/2010 | CN101842500A Comb-like slit laminated yoke for a travelling-magnetic-field inductor for reheating metal strip |
| 09/22/2010 | CN101838771A High-strength thick steel sheet excellent in distortion aging property, and process for producing the same |
| 09/22/2010 | CN101654760B Unalloyed structural steel S355J2 steel plate and production method thereof |
| 09/22/2010 | CN101597676B Method for solving differences between the center of larger-size 82B wire rod and the edging tissue thereof |
| 09/22/2010 | CN101597674B Continuous annealing method of DC01 steel plate with low yield and high tensile strength for automobiles |
| 09/22/2010 | CN101358317B Method for preparing high silicium calcareous non-oriented electrical steel |
| 09/22/2010 | CN101348881B Production method of low cost high performance X70 pipeline steel |
| 09/21/2010 | US7799151 Continuous casting, cutting, and continued heat treatment of steel slabs, particularly those having cracking-prone alloy formulations, without requiring the use of water spray quench cooling equipment. |
| 09/21/2010 | US7799149 Quenched and tempered ferritic stainless steel structure composed of 0.05-0.08% C, at most 0.50% Si, 0.80-1.30% Mn, at most 0.030% P, at most 0.020% S, 0.08-0.50% Cr, at most 0.01% N, 0.005-0.06% Al, at most 0.05% Ti, at most 0.50% Cu, and at most 0.50% Ni, and the balance consisting of Fe and impurities |
| 09/21/2010 | US7799148 Hot-rolled and cold-rolled sheet from having very high mechanical properties, and especially a high mechanical strength combined with excellent resistance to delayed cracking. |
| 09/21/2010 | CA2489233C Steel sheet for vitreous enameling and production method |
| 09/21/2010 | CA2443545C Method of producing stainless steels having improved corrosion resistance |
| 09/16/2010 | WO2010104165A1 Hic-resistant thick steel sheet and uoe steel pipe |
| 09/16/2010 | WO2010102595A1 Method for producing a hot rolled strip and hot rolled strip produced from ferritic steel |
| 09/16/2010 | US20100230016 High-strength steel plate and producing method therefor |
| 09/16/2010 | DE102009012940A1 Producing a sheet metal component, comprises trimming and/or deforming a workpiece, and partially heating and definingly cooling the workpiece in a cooling tool by placing cooling tool elements on a surface of the workpiece |
| 09/16/2010 | CA2755271A1 Hic-resistant thick steel plate and uoe steel pipe |
| 09/15/2010 | CN101835918A High-strength steel plate and process for producing same |
| 09/15/2010 | CN101835917A Thick steel sheet having high strength and method for producing same |
| 09/15/2010 | CN101831594A Method for manufacturing high-strength steel plate used in low-temperature environment |
| 09/15/2010 | CN101831592A Shockproof strip material of nuclear power station steam generator, and preparation method thereof |
| 09/15/2010 | CN101831589A Cold-rolled non-oriented silicon steel with high magnetic induction and low iron loss for high-efficiency motor and manufacture method thereof |
| 09/15/2010 | CN101831587A 600MPa-level hot rolled steel plate and manufacture method thereof |
| 09/15/2010 | CN101586181B Production method of stainless steel soft-state strip |
| 09/15/2010 | CN101451213B Method for producing large thickness and high intensity steel plate for boiler drum |
| 09/15/2010 | CN101353761B TRIP steel plate for high strength cold rolling hot dip galvanizing and preparation thereof |
| 09/14/2010 | US7794651 molybdenum is completely or partially replaced with double the proportion of tungsten; added titanium and/or zirconium which is/are intended to form, substantially during solidification, coarse carbides; reducing the segregated seams |
| 09/14/2010 | US7794552 metal working; hot-rolled and cold-rolled steel; high mechanical properties, use in manufacture of structural or reinforcing elements or external parts for automotive field |
| 09/10/2010 | WO2010101448A2 Stainless steel material having outstanding high-temperature strength, and a production method therefor |
| 09/10/2010 | WO2010074435A3 Steel sheet annealing device, device for producing plated steel sheet comprising the same, and production method for plated steel sheet using the same |
| 09/10/2010 | WO2010070334A3 Improvements related to the manufacture of coil springs |
| 09/09/2010 | US20100226813 High tensile strength steel and marine structure having excellent weld toughness |
| 09/09/2010 | US20100223927 Ferritic stainless steel sheet with excellent thermal fatigue properties, and automotive exhaust-gas path member |
| 09/08/2010 | EP2226399A1 Method for manufacturing grain-oriented electromagnetic steel sheet whose magnetic domains are controlled by laser beam application |
| 09/08/2010 | EP2225402A1 A method of producing a painted steel sheet product of high strength |
| 09/08/2010 | CN101824582A Oriented electrical steel plate band adopting multivariate inhibiting agent and production method thereof |
| 09/08/2010 | CN101824580A Mandrel material |
| 09/08/2010 | CN101824564A Titanium alloy TC4 cold-rolled tube and production method thereof |
| 09/08/2010 | CN101824525A Production method of hot milling steel plate |
| 09/08/2010 | CN101824524A Twin crystal induction plastic steel drug-shaped cover |
| 09/08/2010 | CN101503782B High strength anti-atmosphere corrosion steel and production method thereof |
| 09/08/2010 | CN101392350B Extremely low yield point steel plate and production method thereof |
| 09/08/2010 | CN101343677B Process for manufacturing low-silicon low-carbon deep punching/drawing steel |
| 09/08/2010 | CN101328522B Smelting production method of low activation martensitic steel for fusion reactor |
| 09/08/2010 | CN101294239B Reutilization method for annealing oven protective atmosphere |
| 09/08/2010 | CN101275196B Steel for seamless tin and manufacturing method thereof |
| 09/08/2010 | CN101223291B Bearing device for wheel |
| 09/08/2010 | CN101165203B Ultrahigh-intensity high-toughness X120 pipe line steel and manufacturing method thereof |
| 09/08/2010 | CN101153374B Steel for paper cutter blade and method of producing the same |
| 09/08/2010 | CN101135030B Weather-resistant hot rolled narrow steel strip and method for manufacturing same |
| 09/08/2010 | CN101090982B Method of producing austentic iron/carbon/manganese steel sheets having very high strength and elongation characteristics and excellent homogeneity |
| 09/08/2010 | CN101031663B Method for producing martensitic stainless steel pipe |
| 09/02/2010 | WO2010098172A1 Hydrogen fatigue resistant ferrite steel and manufacturing method thereof |
| 09/02/2010 | US20100221600 Cold-Rolled Steel Sheet and Method for Producing the Same |
| 09/02/2010 | US20100221573 Process for manufacturing steel sheet having high tensile strength and ductility characteristics, and sheet thus produced |
| 09/02/2010 | US20100221572 Steel, for hot forming or quenching in a tool, having improved ductility |
| 09/02/2010 | US20100221139 Steel Having High Mechanical Strength and Wear Resistance |
| 09/02/2010 | US20100218859 High carbon steel sheet superior in fatiugue lifeand manufacturing method thereof |
| 09/02/2010 | US20100218857 High tensile strength galvanized steel sheet excellent in formability and method for manufacturing the same |
| 09/02/2010 | DE102009003508A1 Verfahren zur Herstellung eines pressgehärteten Metallbauteils A method for producing a press-hardened metal member |
| 09/02/2010 | CA2753415A1 Hydrogen fatigue resistant ferritic steel and manufacturing method thereof |
| 09/01/2010 | EP2224028A1 Steel plate for line pipes and steel pipes |
| 09/01/2010 | EP2224019A1 High corrosion resistance precipitation hardened martensitic stainless steel |
| 09/01/2010 | EP2222805A1 Process of coating electrical steel |
| 09/01/2010 | EP1929055B1 Method for treating a steel strip |
| 09/01/2010 | CN101821418A Non-oriented electromagnetic steel plate having low high-frequency iron loss and process for producing the non-oriented electromagnetic steel plate |
| 09/01/2010 | CN101818305A Cu-containing steel product of excellent surface property and process for producing the same |
| 09/01/2010 | CN101818236A Method for manufacturing high carbon steel wheel |
| 09/01/2010 | CN101818235A Manufacturing method of rough-rolled tyre for railway locomotive |
| 09/01/2010 | CN101343682B Rolling heating process for stainless steel for soldering |
| 08/26/2010 | WO2010095755A1 Method of manufacturing sheet steel for thick-walled sour-resistant line pipe of excellent toughness |
| 08/26/2010 | WO2010095730A1 Method of manufacturing sheet steel for sour-resistant line pipe |
| 08/26/2010 | WO2010074458A3 High-strength cold rolled steel sheet having superior deep drawability and a high yield ratio, galvanized steel sheet using same, alloyed galvanized steel sheet, and method for manufacturing same |
| 08/26/2010 | US20100212785 High-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics and method for producing the same |
| 08/25/2010 | EP2220260A1 Low chrome ferritic stainless steel with high corrosion resistance and stretchability and method of manufacturing the same |
| 08/25/2010 | EP2220259A1 Method for the production of coated and hardened components made of steel, and coated and hardenable steel strip therefor |
| 08/25/2010 | CN101812642A Ultrafine crystal bainite high-strength steel and manufacturing method thereof |
| 08/25/2010 | CN101812641A Ferrite stainless steel and manufacturing method thereof |
| 08/25/2010 | CN101812640A In-situ composite high-strength thick steel plate and manufacturing method thereof |
| 08/25/2010 | CN101812639A Steel used for welding hull with high strength and high input energy and production method thereof |
| 08/25/2010 | CN101812634A Low-carbon low-welding crack-sensitive high-strength steel and steel plate and manufacture method thereof |
| 08/25/2010 | CN101812633A Steel used for hot galvanizing structural component with high yield ratio and manufacturing method thereof |
| 08/25/2010 | CN101812630A Hot-rolling high-strength enamel sheet for deep drawing and manufacturing method thereof |
| 08/25/2010 | CN101812571A Method for preventing internal oxidation layer in normalization treatment of electrical hot-rolled strip steel |
| 08/24/2010 | US7780800 air cooling after hot rolling steel, tempering |
| 08/24/2010 | US7780799 Cold-rolled steel sheet having a tensile strength of 780 MPA or more, an excellent local formability and a suppressed increase in weld hardness |
| 08/24/2010 | US7779661 Cooling apparatus for a hot rolled steel strip and methods for cooling a hot rolled steel strip |
| 08/24/2010 | CA2525742C Improved method for production of non-oriented electrical steel strip |
| 08/19/2010 | US20100206440 Method of production of 780 mpa class high strength steel plate excellent in low temperature toughness |
| 08/19/2010 | US20100206439 High strength hot rolled thick steel sheet excellent in strength and toughness after heat treatment and method for manufacturing the same |
| 08/18/2010 | CN201553762U Heat treatment splicing device used before ultra-high strength steel plate pressing |
| 08/18/2010 | CN101809181A H hardness, high toughness iron-base alloys and methods for making same |
| 08/18/2010 | CN101809173A Process and device for producing strips of silicon steel or multiphase steel |
| 08/18/2010 | CN101805821A Integrated stamping forming treatment method of steel |
| 08/18/2010 | CN101210302B Middle and low carbon bainite high-strength high-ductility steel and manufacturing method thereof |