| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
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| 01/01/2003 | CN1097640C Steel material and prodcing method thereof |
| 12/26/2002 | US20020194853 Freezer and plant gas system |
| 12/24/2002 | WO2002088409A1 Iron-base alloy and method for production thereof |
| 12/19/2002 | US20020189399 Chromium, nickel, molybdenum and nitrogen with pitting resistance equivalent number of >/= 50, remelting to homogenize |
| 12/18/2002 | EP0853810B1 Heat-treatment of glassy metal alloy for article surveillance system markers |
| 12/18/2002 | CN1386144A Ferritic stainless steel for ferromagnetic parts |
| 12/17/2002 | US6494970 Heat resistant steel casting and method of manufacturing the same |
| 12/12/2002 | WO2002070768A3 A cast shaped article made from high strenght, precipiation-hardenable stainless steel and a process for making same |
| 12/11/2002 | EP0730042B1 Bainite steel material of little scatter of quality and method of manufacturing the same |
| 12/10/2002 | US6491767 Case hardened dies for improved die life |
| 12/05/2002 | US20020179204 Prevention warping; heat resistance; moncracking |
| 12/04/2002 | EP1263003A2 Preparation of a rare earth magnet alloy powder for a bonded magnet and rare earth bonded magnet therewith |
| 12/04/2002 | EP1145259B1 High strength soft magnetic alloys |
| 12/04/2002 | CN1383458A High tensile cold-rolled steel sheet excellent in ductility and in strain ageing hardening properties, and method for producing same |
| 12/03/2002 | US6488786 High-strength, high-toughness martensitic stainless steel sheet |
| 12/03/2002 | US6487938 Paper drill bit |
| 11/27/2002 | EP1018125B1 Metallic glass alloys for mechanically resonant marker surveillance systems |
| 11/27/2002 | CN1094994C Process for production of body of material stable at high temp. from iron-nickel superalloy |
| 11/26/2002 | US6485584 Method of manufacturing a ferritic-martensitic, oxide dispersion strengthened alloy |
| 11/26/2002 | US6485582 Advanced case carburizing secondary hardening steels |
| 11/21/2002 | WO2002092869A1 Ferritic stainless steal and martensitic stainless steel both being excellent in machinability |
| 11/21/2002 | WO2002022905A3 Stainless steel and stainless steel surface |
| 11/21/2002 | US20020173373 Golf club head |
| 11/20/2002 | EP1257680A1 Iron base high temperature alloy |
| 11/20/2002 | EP1257414A1 Use of a dimensionally stable iron-chrome-aluminum film |
| 11/19/2002 | US6482354 High-hardness powder metallurgy tool steel and article made therefrom |
| 11/14/2002 | DE10207132A1 Verfahren zur Verstärkung eines Werkstückes in zumindest einem Teilbereich A method of reinforcing a workpiece in at least a partial region |
| 11/13/2002 | EP1255873A1 Maraging type spring steel |
| 11/12/2002 | US6479013 Casting components made from a tool steel |
| 11/12/2002 | US6478898 Method of producing tool steels |
| 11/12/2002 | CA2182813C Method of making dual phase steel plate |
| 11/07/2002 | WO2002088411A1 High manganese duplex stainless steel having superior hot workabilities and method for manufacturing thereof |
| 11/07/2002 | US20020164261 For producing golf club head |
| 11/07/2002 | US20020162614 Steel for plastic molds and process for their heat treatment |
| 11/06/2002 | EP1198605A4 Methods of forming steel |
| 11/05/2002 | US6475310 Oxidation resistant alloys, method for producing oxidation resistant alloys |
| 11/05/2002 | US6475307 Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel |
| 10/31/2002 | WO2002086176A1 Ferritic heat-resistant steel and method for production thereof |
| 10/31/2002 | WO2002086172A1 Method of producing stainless steels having improved corrosion resistance |
| 10/24/2002 | WO2002083966A1 Reinforced durable tool steel, method for the production thereof, method for producing parts made of said steel, and parts thus obtained |
| 10/24/2002 | WO2002083959A1 Steel material prodction method |
| 10/23/2002 | EP1250205A1 Method for producing angular, stainless shot-blasting abrasives based on an fe-cr-c alloy |
| 10/17/2002 | WO2000005733A3 High strength soft magnetic alloys |
| 10/17/2002 | EP1145259A3 High strength soft magnetic alloys |
| 10/16/2002 | EP1248862A1 Method for austempering steel parts |
| 10/15/2002 | US6464804 Martensitic-hardenable heat-treated steel with improved resistance to heat and ductility |
| 10/15/2002 | US6464803 Stainless steel for brake disc excellent in resistance to temper softening |
| 10/15/2002 | US6464801 Advanced case carburizing secondary hardening steels |
| 10/10/2002 | WO2002079534A1 Ultra-high-strength precipitation-hardenable stainless steel and elongated strip made therefrom |
| 10/10/2002 | US20020144756 Ferritic stainless steel plate and method |
| 10/10/2002 | US20020144754 R-t-b rare earth sintered magnet having improved squareness ratio and method for producing same |
| 10/09/2002 | EP1047804B1 Free-machining martensitic stainless steel |
| 10/09/2002 | CN1092239C Method for cooling steel pipe |
| 10/03/2002 | WO2002077300A1 Production of soft magnetic formed body of high permeability and high saturation magnetic flux density |
| 10/03/2002 | US20020139455 Process for case hardened dies in improving die life |
| 10/03/2002 | US20020139454 Rolling bearing and method of making same |
| 10/03/2002 | US20020139449 15-18% chromium, </=.5% manganese, silicon and carbon 4-10% nickel, >/=15% cobalt, </=4% tungsten, </=4% molybdenum and copper, .5-1% vanadium, niobium, tanalum, hafnium and zirconium totalling .001-.1%, 001-.05% titanum, .13-.25% |
| 10/03/2002 | US20020139447 Containing increased content of boron |
| 10/02/2002 | EP1245689A2 Low-alloy heat-resistant steel, heat treatment method therefor, and turbine rotor comprising the same |
| 10/01/2002 | US6458220 Case hardened steel blades for sports equipment and method of manufacture |
| 09/25/2002 | EP0826786B1 Process for preparing magnetostrictive material |
| 09/25/2002 | CN1370851A Plastic-forming die steel and its heat treatment process |
| 09/24/2002 | US6454879 Austenitic; in media with high chloride concentrations; carbon, silicon, chromium, manganese, nitrogen, iron; deformation and synergistically results in a ferrite-free material; oilfield technology, borerods and drills |
| 09/19/2002 | WO2002072893A1 Method for heating slabs and system for carrying out said method |
| 09/19/2002 | WO2002059389A3 Steel and method for producing an intermediate product |
| 09/19/2002 | WO2002038477A9 Endless yarn tensioning strip and method for producing the same |
| 09/19/2002 | WO2002022908A3 Process of treating stainless steel |
| 09/19/2002 | US20020129873 Ferritic stainless steel which can be used for ferromagnetic parts |
| 09/18/2002 | CN1370243A Method for manufacture of steel products of precipitation hardened martensitic steel, steel products obtained with such method and use of said steel products |
| 09/17/2002 | US6451133 Chemical resistance |
| 09/12/2002 | WO2002070769A1 Steel article |
| 09/12/2002 | WO2002070768A2 A cast shaped article made from high strenght, precipiation-hardenable stainless steel and a process for making same |
| 09/12/2002 | US20020124914 Amorphous alloy powder core and nano-crystal alloy powder core having good high frequency properties and methods of manufacturing the same |
| 09/12/2002 | DE10110954A1 Production of workpieces, especially tail section of projectile, made from alloyed steel, involves feeding oxygen into oven during annealing of workpiece |
| 09/12/2002 | CA2436423A1 Steel article |
| 09/11/2002 | EP1238118A2 Martensitic stainless steel and steelmaking process |
| 09/11/2002 | EP1133579B1 Method for producing of a protective layer on a martensitic steel and utilisation of said steel coated with said protective layer |
| 09/11/2002 | CN1368560A Phase transformation control nitride evolved hardened quenched and tempered steel |
| 09/10/2002 | US6447621 R-T-B rare earth sintered magnet having improved squareness ratio and method for producing same |
| 09/04/2002 | EP1068366B1 Steel material and method for its manufacturing |
| 09/03/2002 | US6443624 Machine tool antifriction bearings; low heat generating, durable assembly; case hardened stainless steel; low osculation ratios between balls and raceways; can withstand applied radial loads and centrifugal forces |
| 08/29/2002 | US20020119069 20-30% manganese, 5.5-6% silicon, 2-5% chromium, .1-.5% nitrogen and 61-70% iron; 100% shape recovery with one cycle of thermo-mechanical training with a prestrain of 3% |
| 08/29/2002 | US20020117239 Ferritic stainless steel sheet having good workability and manufacturing method thereof |
| 08/22/2002 | US20020113041 Method for partly reinforcing a workpiece |
| 08/22/2002 | US20020112795 Heat treated stainless hydraulic components and method for making same |
| 08/22/2002 | DE10103290A1 Stahl und Verfahren zur Herstellung eines Zwischenproduktes Steel and process for the preparation of an intermediate |
| 08/21/2002 | EP1233080A1 Steel for plastic molds and process of heat treatment thereof |
| 08/20/2002 | US6436202 Heat/soak treatment in low oxidizing atmosphere to deplete surface of nickel and iron and enrich with chromium and manganese; reduced rate of catalytic coking |
| 08/15/2002 | WO2002063055A1 Heat-treated steel wire for high strength spring |
| 08/15/2002 | US20020108681 Heat treatment comprising the steps of normalizing the heat resistant steel, and oil-cooling the normalized heat-resisting steel to a temperature of <300 degrees C.; high heat resistance and mechanical strength; steam turbine rotors |
| 08/14/2002 | EP1230411A1 Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel |
| 08/14/2002 | EP0796352B1 Ultra-high strength steels and method thereof |
| 08/14/2002 | CN1363710A Ferritic stainless steel with excellent machinability and production thereof |
| 08/08/2002 | WO2002061162A1 Heat-resistant martensite alloy excellent in high-temperature creep rapture strength and ductility and process for producing the same |
| 08/08/2002 | WO2001031071A9 Processing of intermetallic alloys |
| 08/08/2002 | US20020104586 FR-CR soft magnetic material and a method of manufacturing thereof |
| 08/07/2002 | EP1228253A1 Steel composition, method for making same and parts produced from said compositions, particularly valves |
| 08/06/2002 | US6427782 Noise suppression drilling system |
| 08/01/2002 | WO2002059389A2 Steel and method for producing an intermediate product |
| 08/01/2002 | US20020102178 Shape, hardness |