| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 02/06/2002 | EP1178123A1 Method of stress inducing transformation of austenite stainless steel and method of producing composite magnetic members |
| 02/06/2002 | CN1334757A Method for mfg. of strips of stainless steel and integrated rolling mill line |
| 02/06/2002 | CN1078913C Method for making Fe-Ni alloy used in electron gun parts |
| 02/06/2002 | CN1078911C Steel sheet for double wound pipe and method of producing pipe |
| 01/31/2002 | US20020012805 Applying film tension |
| 01/31/2002 | US20020012602 A fuel tank made of a ferritic stainless steel sheet containing 10 to 25 mass % of Cr and having an average r-value of 1.9 or larger, an r-value in-plane anisotropy Delta r of 1.0 or smaller, total elongation 30% or largerlarger |
| 01/31/2002 | US20020011286 To be used with a painted film in coastland or cold district where steel structures are subjected to salt damage by airborne salt or deicing salt (as an antifreezing agent scattered on the road) |
| 01/31/2002 | US20020011285 Ferritic heat-resistant steel and method for producing it |
| 01/31/2002 | US20020011284 Producing seamless line pipes within the quality grade range X 52 to X 90, with a stable yield strength up to a temperature of use of 200 degrees C., and with an essentially constant stress-strain characteristic |
| 01/31/2002 | US20020011282 Anhysteretic magnetic permeability of 15,000 or higher at 0.35 Oe and yield stress of 24 kgf/mm2 or more. |
| 01/31/2002 | US20020011278 Secondary recrystallization, to accelerate precipitation of fine BN to improve the texture of primary recrystallized grains of said steel sheet for use prior to secondary recrystallization annealing |
| 01/30/2002 | EP1176221A2 Magnetorestriction control alloy sheet, a part of a Braun tube and a manufacturing method for a magnetorestriction control alloy sheet |
| 01/30/2002 | EP1176220A1 Ferritic stainless steel sheet having superior workability at room temperatures and mechanical characteristics at high temperatures, and method of producing the same |
| 01/30/2002 | EP1176217A2 High-strength hot-rolled steel sheet superior in strech flange formability and method for production thereof |
| 01/30/2002 | EP0842715B1 Seamless steel pipe manufacturing method and equipment |
| 01/30/2002 | CN1333383A High-strength steel plate with fine working property and coating layer bond strength and method for making same |
| 01/30/2002 | CN1078627C Cold rolled steel plate having excellent deep drawability and time limitation resistance, and method for mfg. same |
| 01/30/2002 | CN1078625C High-strength cold rolled steel sheet and highstrength plated steel sheet which have excellent geomagnetism shielding characteristics, and method of mfg. them |
| 01/30/2002 | CN1078624C unidirectional magnetic steel sheet and method of its manufacture |
| 01/30/2002 | CN1078623C High-strength steel having high impact energy absorption power and method for mfg. same |
| 01/24/2002 | WO2002006548A1 Fe-ni or fe-ni-co or fe-ni-co-cu alloy strip with improved cuttability |
| 01/24/2002 | WO2002006546A1 Piston ring excellent in resistance to scuffing, cracking and fatigue and method for producing the same, and combination of piston ring and cylinder block |
| 01/24/2002 | US20020007882 Multistage cooling |
| 01/24/2002 | US20020007871 High-strength heat-resistant steel, process for producing high-strength heat-resistant steel, and process for producing high-strength heat-resistant pipe |
| 01/24/2002 | US20020007870 Method for producing a grain-oriented electrical steel sheet excellent in magnetic properties |
| 01/24/2002 | US20020007546 Advanced alloy fiber and process of making |
| 01/23/2002 | EP1173625A1 Method for producing a rolling bearing steel |
| 01/23/2002 | EP0787541B1 Method of manufacturing seamless steel pipes and manufacturing equipment therefor |
| 01/23/2002 | CN1332807A Steel band with good forming properties and method for producing same |
| 01/23/2002 | CN1078256C Process for producing grain-orientated magnetic steel sheet |
| 01/23/2002 | CN1078255C Process and apparatus for continosly casting sheet metal |
| 01/23/2002 | CN1078254C Controlled rolling technology for microally steel with superfine structure |
| 01/23/2002 | CN1078113C Process for manufacturing thin strip of ferritic stainless steel, and thin strip thus obtained |
| 01/22/2002 | US6340399 Having specified amounts of carbon, silicon, manganese, aluminum and antimony, balance iron |
| 01/17/2002 | WO2002004689A1 Ferritic stainless steel for ferromagnetic parts |
| 01/17/2002 | WO2002004145A2 Method and apparatus for the direct production of scale-free thin metal strip |
| 01/17/2002 | US20020006350 High strength, low expansion |
| 01/17/2002 | US20020006349 Computer disk drive |
| 01/17/2002 | US20020005234 Galvanizing |
| 01/17/2002 | US20020005231 Grain oriented electromagnetic steel sheet and manufacturing thereof |
| 01/17/2002 | CA2384754A1 Ferritic stainless steel for ferromagnetic parts |
| 01/16/2002 | EP1172454A1 Formed member made of steel sheet and method for producing same |
| 01/16/2002 | EP1172451A1 Material for shadow mask, method for production thereof, shadow mask and image receiving tube |
| 01/16/2002 | EP1007745B1 Metallurgical method for processing nickel- and iron-based superalloys |
| 01/16/2002 | CN1331758A Ultra-high strength triple phase steels with excellent cryogenic temp toughness |
| 01/16/2002 | CN1331757A Ultra-high strength ausaged steels with excellent cryogenic temp. toughness |
| 01/16/2002 | CN1331348A Low iron loss and low noise grain oriented electrical engineering steel plate and prodn. method thereof |
| 01/16/2002 | CN1077920C Cold rolled steel sheet for shadow mask made by low-temp. annealing and mfg. method therefor |
| 01/15/2002 | US6338762 Annealing after cold rolling of a steel plate are repeated after hot rolling, and then temper rolling is performed, excellent fatigue strength; sufficient level of hardness can be achieved even for a low carbon steel when temper rolling is |
| 01/10/2002 | WO2002002838A1 Steel sheet for heat shrink band |
| 01/10/2002 | WO2002002837A1 Corrosion resistant material |
| 01/10/2002 | WO2002002836A1 Fe-cr-al based alloy foil and method for producing the same |
| 01/09/2002 | EP1170391A1 High strength steel plate having improved workability and plating adhesion and process for producing the same |
| 01/09/2002 | EP1170390A1 Hot-rolled steel sheet having high tensile strength and method for production thereof |
| 01/09/2002 | EP1170388A1 Steel sheet for tension mask, method for producing the same and tension mask |
| 01/09/2002 | EP1169486A1 Method of producing a hot-rolled strip |
| 01/09/2002 | EP1169485A2 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| 01/09/2002 | EP1015653B1 Metallurgical vessel |
| 01/09/2002 | CN1330725A Fe-Ni alloy for tension mask and tension mask using it and color CRT |
| 01/09/2002 | CN1330575A Method for manufacturing of strips and rolling mill line |
| 01/09/2002 | CN1330165A Band steel for shadow mask and its preparing process |
| 01/09/2002 | CN1077601C Method for producing silicon-chromium grain oriented electrical steel |
| 01/08/2002 | US6336980 Method for in-line heat treatment of hot rolled stock |
| 01/03/2002 | WO2002000956A1 Composition and method for the production of multiphase steels |
| 01/03/2002 | WO2002000947A1 Method for making a high resistance and high formability cole rolled steel strip |
| 01/03/2002 | US20020000266 High strength steel sheet and method for manufacturing the same |
| 01/03/2002 | US20020000265 Cold and hot rolled steel sheet; annealing forms chromium spinel oxide layer under surface and forsterite coating on surface |
| 01/03/2002 | US20020000261 Magnetostriction properties induced by high tension of insulation film and imposition of fine strains by laser irradiation |
| 01/02/2002 | EP1165276A2 Method of manufacturing metallic products such as sheet by cold working and flash annealing |
| 01/02/2002 | CN1329676A Method for processing billets out of metals and alloys and article |
| 01/02/2002 | CN1329176A Method for manufacturing grain orientation electric steel plate with good magnetic property |
| 01/02/2002 | CN1077148C Drawing stock for reinforcing plastic or rubber articles |
| 01/02/2002 | CN1077145C Steel sheet or steel band, method for its manufacture and use |
| 01/02/2002 | CN1077142C Process for production of oriented-grain electrical steel sheet with high magnetic characteristics |
| 01/01/2002 | US6334910 Steel sheet containing specified amounts of carbon, silicon, manganese, phosphorus, sulfur, aluminum and nitrogen, having specified average diameter of crystal grains and surface roughness before coating with resin |
| 12/27/2001 | WO2001098552A1 Thin steel sheet and method for production thereof |
| 12/27/2001 | WO2001098551A1 Steel sheet for porcelain enamel excellent in forming property, aging property and enameling characteristics and method for producing the same |
| 12/26/2001 | CN1076761C Method for mfg. high strength and high formability hot-rolled transformation induced plasticity steel containing copper |
| 12/25/2001 | US6332936 Thermomechanical processing of plasma sprayed intermetallic sheets |
| 12/25/2001 | US6332934 Martensitic stainless steel for seamless steel pipe |
| 12/20/2001 | WO2001096625A1 Steel pipe for use in reinforcement of automobile and method for production thereof |
| 12/20/2001 | WO2001096624A1 High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same |
| 12/19/2001 | EP1164204A1 Cu precipitation strengthened steel and method for producing the same |
| 12/19/2001 | EP1163377A2 A method of heating metal strip and apparatus therefor |
| 12/19/2001 | EP1163376A1 Method for continuous casting of highly ductile ferritic stainless steel strips between rolls, and resulting thin strips |
| 12/19/2001 | CN1327078A Austenitic stainless steel with good accurate punching property |
| 12/19/2001 | CN1327077A Fe-Ni alloy cathode cover semi-product with good etching perforation property and its preparing method |
| 12/19/2001 | CN1327075A One-way electromagnetic steel plate for low noise transformer |
| 12/19/2001 | CN1076404C Stainless steel wire and mfg. process |
| 12/18/2001 | US6331216 Good fatigue resistance; composed mainly of ferrite or ferrite plus pearlite or ferrite plus cementite; fine crystal grains; reducing steel pipes of specific composition at a temperature of ferrite recrystallization by hot rolling |
| 12/18/2001 | US6331215 Having a low ratio of iron loss in a weaker magnetic field to loss in a stronger field; iron cores for small size electric generators and as e.i. cores for small scale transformers; proportions of al, ti and b, with a forsterite film formed on |
| 12/13/2001 | WO2001094655A1 Steel pipe having high formability and method for producing the same |
| 12/13/2001 | WO2001094654A1 Cold rolled steel sheet having excellent corrosion resistance to sulfuric acid |
| 12/13/2001 | US20010050119 Rolling, cooling, coiling |
| 12/13/2001 | US20010049956 Hot-rolled steel with very high elasticity limit and mechanical resistance usable in particular for auto parts production |
| 12/12/2001 | EP1162280A2 Method for producing a grain-oriented electrical steel sheet excellent in magnetic properties |
| 12/12/2001 | CN1326009A Low iron-loss thin non-oriented silicon steel plates with excellent machining performance and preparation thereof |
| 12/11/2001 | US6329081 Stainless steel sheet material and manufacturing method thereof |
| 12/11/2001 | US6328826 Casting strip from liquid steel; hot-rolling said strip on-line in one or more passes; first forced cooling of strip; holding until bainitic transformation; interrupting transformation by second forced cooling of strip; coiling |
| 12/06/2001 | WO2001092593A1 Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same |