Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
04/1994
04/12/1994US5302097 Heat resistant hot formable austenitic steel
04/06/1994CN1024142C Graphite antifriction steel containing sulphur
04/06/1994CN1024141C Steel sheets for porcelain enameling and method of producing same
04/05/1994EP0567612A4 Nonoriented electrical steel sheets with superior magnetic properties, and methods for manufacturing thereof.
04/05/1994CA1328179C Free-cutting steel having high fatigue strength
03/1994
03/31/1994WO1994006948A1 Ferrite single phase cold rolled steel sheet or fused zinc plated steel sheet for cold non-ageing deep drawing and method for manufacturing the same
03/30/1994EP0589435A2 Refractory shape steel material containing oxide and process for producing rolled shape steel of said material
03/30/1994EP0589424A2 Shape steel material having high strength, high toughness and excellent fire resistance and process for producing rolled shape steel of said material
03/30/1994EP0589415A1 Steel sheet for press working that exhibits excellent stiffness and satisfactory press workability
03/30/1994EP0588904A1 Iron-based powder composition having good dimensional stability after sintering
03/30/1994CN1084668A Process for manufacturing rare-earth permanent magnet
03/30/1994CN1084580A Refractory shape steel material containing oxide and process for producing rolled shape steel of said material
03/29/1994US5298093 Carbon, maganese, sulfur, nickel, molybdenum, tungsten, aluminum, phosphorus, chromium, nitrogen, copper or vanadium, calcium/magnesium or boron, rare earth metal, iron
03/24/1994DE4331563A1 Sintered permanent magnet with good thermal stability - containing defined percentages by weight of specified elements
03/24/1994DE4242757C1 Low nickel@ content steel alloy for jewellery, etc - comprises silicon@, manganese@, nitrogen@, chromium@, phosphorus@, sulphur@, copper@ and molybdenum@
03/24/1994DE4231695A1 Corrosion resistant tool steel with reduced chromium@ content - contg. carbon, silicon, manganese@, chromium@, molybdenum@, nitrogen, niobium, vanadium@, titanium@ and iron@
03/23/1994EP0588657A1 Controlled thermal expansion superalloy
03/23/1994EP0588342A1 Grain-oriented electrical steel sheet and material having very high magnetic flux density and method of manufacturing same
03/23/1994EP0587960A1 Production of iron aluminide materials
03/22/1994US5296215 Containing sodium lauryl sulfate surfactant and alkyl glycoside
03/22/1994US5296054 Austenitic steel
03/17/1994WO1994005824A1 Structural member and process for producing the same
03/17/1994WO1994005821A1 Heat-resistant iron-base alloy sleeve for diesel engine prechamber
03/16/1994EP0586704A1 High-yield-ratio hot-rolled high-strength steel sheet excellent in formability or in both of formability and spot weldability, and production thereof
03/16/1994EP0414724B1 Ferromagnetic materials
03/16/1994CN1024024C Smelting process of alloyes of boron-silicon-iron and boron-iron
03/09/1994EP0586179A1 Forging and a method for its manufacture
03/09/1994EP0585956A1 Thick grain-oriented electrical steel sheet exhibiting excellent magnetic properties
03/08/1994US5292384 Cr-W-V bainitic/ferritic steel with improved strength and toughness and method of making
03/08/1994US5292383 Improved fish scale resistance and press formability
03/08/1994US5292380 Permanent magnet for accelerating corpuscular beam
03/03/1994WO1994005021A1 Permanent magnet material containing a rare-earth element, iron, nitrogen and carbon
03/03/1994WO1994004714A1 Corrosion resistant austenitic stainless steel with improved galling resistance
03/03/1994WO1994004713A1 Use of a steel alloy for reinforcement tubes of side doors of private cars
03/03/1994WO1994004297A1 Heat treatment of metal castings and in-furnace sand reclamation
03/03/1994CA2142337A1 Permanent magnet material containing a rare-earth element, iron, nitrogen and carbon
03/02/1994EP0585078A1 Embrittlement resistant stainless steel alloy
03/02/1994EP0429651B1 Iron base, soft magnetic steel material
03/01/1994US5290370 Cold-rolled high-tension steel sheet having superior deep drawability and method thereof
02/1994
02/24/1994DE4227154A1 Verwendung einer Stahllegierung für Rohre zur Verstärkung der Seitentüren von Pesonenkraftwagen Use of a steel alloy for tubes for reinforcing the side doors of Pesonenkraftwagen
02/23/1994EP0583445A1 Work hardened stainless steel for springs.
02/23/1994CN1082759A Producing method for Nd-Fe-B permanent magnet
02/23/1994CN1082621A Rare-earth contg. poly component super-high temperature sulfur-resistant and anti-wear steel
02/22/1994US5288736 Coating a magnesium oxide protective coatings with magnesium surfate on surfaces to maintain surfur concentration
02/22/1994US5288455 Steel for rotor shafts of electric machines and method and product thereof
02/22/1994US5288347 Method of manufacturing high strength and high toughness stainless steel
02/22/1994US5288342 Solid metal-carbon matrix of metallofullerites and method of forming same
02/16/1994CN1081999A Productive method and application of calcined silica
02/15/1994US5286442 High-aluminum-containing ferritic stainless steel having improved high-temperature oxidation resistance
02/15/1994US5286312 High-strength spring steel
02/15/1994US5286311 For use in internal combustion engines
02/15/1994US5286310 Having low delta ferrite content
02/15/1994US5286309 Electric-resistance-welded steel pipe with high strength
02/15/1994US5286308 Alloy of transition metal, rare earth element, yttrium and boron; noncracking
02/15/1994US5286153 Corrosion-resistant nail for driving into hard materials
02/10/1994DE4324667A1 Corrosion resistant magnetic film for use on magnetic heads - has alloy components together with rare earth components to provide high saturation magnetic flux density and high permeability
02/09/1994EP0582132A1 Structural steel, especially concrete reinforcing steel and method of manufacturing
02/08/1994US5284530 High-chromium and molybdenum steels having toughness and high temperature workability
02/08/1994US5284529 Abrasion-resistant steel
02/03/1994WO1994002950A1 Magnetic materials and method of making them
02/02/1994EP0581629A1 Steel sheets for drawing and ironing and manufacturing process for these sheets
02/01/1994US5283032 Nickel-cobalt-iron base alloy; oxidation, stress and heat resistance, ductility
02/01/1994US5282906 Martensitic matrix microstructure with dispersed particles of vanadium and niobium carbonitrides and iron carbide; controlled hot roll finishing and cooling; springs
02/01/1994US5282904 Controlling oxygen, carbon, nitrogen content; heat treating and quenching to form protective coating
02/01/1994CA2022907C Method of manufacturing a steel sheet
02/01/1994CA1326606C Radiation resistant austenitic stainless steel alloys
01/1994
01/26/1994EP0580062A1 Process for manufacturing of thick armour plates
01/25/1994US5281250 Powder blends
01/19/1994CN1023574C Melted metal corrosion resistant alloy
01/19/1994CN1023569C Prepn. of pumping rod without heat treatment
01/18/1994US5279902 Air hardening steel
01/18/1994US5279785 Permanent magnet having high corrosion resistance, a process for making the same and a process for making a bonded magnet having high corrosion resistance
01/18/1994US5279688 Steel shaft material which is capable of being directly cut and induction hardened and a method for manufacturing the same
01/18/1994CA1326143C Ferritic stainless steel and processing therefore
01/12/1994EP0578626A1 Compound body
01/12/1994EP0578221A1 Blister-resistant steel sheet and method for production thereof
01/12/1994EP0577898A1 Stainless non-magnetic steel with high manganese and chromium content, resistant to stress corrosion and useful for drilling equipment, also the process for manufacturing rods from this steel
01/12/1994CN1080666A Low-carbon nigh cr cast iron wear-resisting material
01/12/1994CN1080665A Fe-al-ce high-temp. alloy
01/11/1994US5278881 Construction materials for nuclear reactor
01/11/1994CA1325902C Low thermal expansion casting alloy having excellent machinability
01/11/1994CA1325901C Antibiotic alloys
01/06/1994WO1994000615A1 Cold-rolled steel plate having excellent baking hardenability, non-cold-ageing characteristics and moldability, and molten zinc-plated cold-rolled steel plate and method of manufacturing the same
01/06/1994WO1994000259A1 Powdery alloy for bonded magnet and bonded magnet
01/05/1994EP0576802A1 Two-phase stainless steel wire rope having high fatigue resistance and corrosion resistance
01/05/1994CN1080330A Austenite stainless steel
01/05/1994CN1080329A Semi-steel ingot tipping roller sleeve and its making method
01/05/1994CN1080327A Low-alloyed ball mill wearing liner plate and making process thereof
01/04/1994US5275672 Razor blade steel having high corrosion resistance and differential residual austenite content
12/1993
12/29/1993EP0576173A2 Cast steel suitable for machining
12/29/1993EP0576107A1 Use of a steel for the manufacture of constructiontubes
12/29/1993EP0576055A1 Fine-grained anisotropic powder from melt-spun ribbons
12/29/1993EP0489784B1 Permanent magnet
12/29/1993CN1079997A High thermoplasticity iron-base shape memory alloy
12/29/1993CN1023328C Iron-base high chromium rareearth double-phase steel
12/28/1993US5273570 Secondary hardening type high temperature wear-resistant sintered alloy
12/28/1993CA1325533C Steels for hot working press tools
12/22/1993EP0575190A2 Fe-base soft magnetic alloy and process for making same
12/22/1993EP0574814A2 High-strength cold-rolled steel sheet excelling in deep drawability and method of producing the same
12/22/1993EP0574582A1 Damping alloy