Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
05/1988
05/10/1988CA1236381A1 Iron-rare earth-boron permanent magnets by hot working
05/03/1988US4741080 Process for providing valve members having varied microstructure
05/03/1988CA1235927A1 Work-hardenable substantially austenitic stainless steel and method
04/1988
04/27/1988EP0264868A2 Medium or light section rolling mill
04/21/1988WO1988002787A1 Shape-memory alloy resetting method and apparatus
04/20/1988EP0264357A2 Heat-resistant austenitic alloy, and process for its manufacture
04/13/1988EP0263413A2 Non-oriented electrical steel sheets and producing non-oriented steel sheets
04/12/1988US4737203 Method for reducing core losses of grain-oriented silicon steel using liquid jet scribing
04/12/1988US4736884 Method for manufacturing high-strength clad steel plate excellent in corrosion resistance
04/06/1988EP0262874A2 Cold-rolled steel sheets and method for producing cold-rolled steel sheets
04/06/1988EP0262281A1 Process for the production of tubes for use at temperatures up to minus 40 degrees Celsius
03/1988
03/29/1988CA1234533A1 Process for producing heat-resistant, ferritic stainless steel sheet
03/29/1988CA1234532A1 High tensile-high toughness steel
03/24/1988WO1988002031A1 Process for manufacturing rolled steel products
03/23/1988EP0260927A2 Method of producing extra-low iron loss grain oriented silicon steel sheets
03/23/1988EP0260717A1 Process for manufacturing rolled steel products
03/22/1988US4732623 Method of making high strength steel tube
03/16/1988EP0260022A2 Stainless steel having good corrosion resistance and good resistance to corrosion in seawater and method for producing the same
03/16/1988EP0259580A2 Production of a taper rod
03/01/1988US4728083 Method and apparatus for scribing grain-oriented silicon steel strip
02/1988
02/23/1988US4726853 Ductility, corrosion resistance
02/23/1988CA1233095A1 Process for producing grain-oriented electrical steel sheet having both improved magnetic properties and properties of glass film
02/09/1988US4724015 Method for improving the magnetic properties of Fe-based amorphous-alloy thin strip
02/09/1988US4724012 Iron, nickel, chromium and cobalt alloy
02/09/1988CA1232516A1 Using corrosion proof austenitic alloy for high load weldable components
02/09/1988CA1232515A1 Using a corrosion proof austenitic iron chromium nickel nitrogen alloy for high load components
02/03/1988EP0254932A2 Heat treatment of rapidly quenched Fe-6.5 wt si ribbon
02/02/1988US4722755 Austenite and ferrite components; nitrogen incorporated in solid solution
01/1988
01/27/1988EP0253904A1 Method for the production of oriented silicon steel sheet having excellent magnetic property
01/26/1988US4721600 Superplastic ferrous duplex-phase alloy and a hot working method therefor
01/26/1988US4721536 Method for making steel tubes or pipes of increased acidic gas resistance
01/26/1988CA1231834A1 Car stabilizer and a manufacturing method therefor
01/19/1988US4720307 Method for producing high strength steel excellent in properties after warm working
01/19/1988CA1231631A1 High strength low carbon steels, steel articles thereof and method for manufacturing the steels
01/19/1988CA1231630A1 Low loss electrical steel strip and method for producing same
01/12/1988US4718951 Hot rolling
01/12/1988US4718908 High-strength, cold-forged type 316L stainless steel for orthopedic implant
01/12/1988CA1231292A1 Local heat treatment of electrical steel
01/05/1988US4717300 Pin for a fastener, and method of making same
12/1987
12/29/1987US4715906 Isothermal hold method of hot working of amorphous alloys
12/29/1987US4715905 Method of producting thin sheet of high Si-Fe alloy
12/29/1987US4715904 Method for producing a magnet with radial magnetic anisotropy
12/22/1987CA1230542A1 Insulative coating composition for electrical steels
12/15/1987US4713123 Method of producing extra-low iron loss grain oriented silicon steel sheets
12/08/1987US4711113 Apparatus for reducing core losses of grain-oriented silicon steel
12/02/1987EP0247264A2 Method for producing a thin casting of Cr-series stainless steel
12/01/1987US4709742 Method for producing a thin casting of Cr-series stainless steel
12/01/1987CA1229777A1 Method of making cg iron
12/01/1987CA1229750A1 Cold rolled dual-phase structure steel sheet having an excellent deep drawability and a method of manufacturing the same
11/1987
11/24/1987US4708748 Method of making cold rolled dual-phase structure steel sheet having an excellent deep drawability
11/24/1987CA1229542A1 Method for producing grain-oriented silicon steel sheets
11/04/1987EP0243663A2 Pressurized gas cylinder made from an austenitic steel alloy
11/03/1987CA1228788A1 Method of manufacturing grain-oriented silicon steel sheets
10/1987
10/27/1987US4702780 Heat treatment, hot rolling, annealing, cold rolling to give high magnetic flux density
10/27/1987US4702778 Hot rolling, then controlled cooling
10/21/1987EP0242032A2 Method of producing low core losses in oriented silicon steels
10/21/1987EP0241553A1 High strength stainless steel, and process for its production
10/21/1987EP0241551A1 Method of forming high -strength, corrosion-resistant steel
10/14/1987EP0240755A1 Heat treating method for obtaining a flat magnetization curve in amorphous cores
10/08/1987WO1987005945A1 Process for producing low core loss, thin, unidirectional silicon steel plate having excellent surface properties
10/07/1987EP0239688A1 Annealing separator used in the finishing annealing step for producing a grain-oriented electrical steel sheet
10/06/1987US4698272 Extra-low iron loss grain oriented silicon steel sheets
10/06/1987US4698102 Process for producing, by continuous annealing, soft blackplate for surface treatment
10/06/1987CA1227728A1 Method for improving the annealing separator coating on silicon steel and coating therefor
09/1987
09/23/1987CN87100530A Permanent magnet made from the rare-earth with very low coercive force transition metal, boron alloy
09/22/1987CA1227109A1 Method for producing a weldable austenitic stainless steel in heavy sections
09/16/1987EP0236805A2 Use of austenitic-steel work pieces for low temperature application
09/16/1987EP0120976B1 Process for manufacturing cold-rolled steel for deep drawing
09/16/1987EP0109436B1 Divorced eutectoid transformation process and product of ultrahigh carbon steels
09/15/1987US4693762 Isothermal heating
09/15/1987CA1226767A1 Hot-dip aluminum coated steel strip having excellent strength and oxidation resistance at elevated temperatures and process for production thereof
09/11/1987WO1987005336A1 Martensitic stainless steel plate excellent in oxidation resistance, workability, and corrosion resistance, and process for its production
09/08/1987US4692193 Decarburization step after hot-rolling and before final cold-rolling
09/02/1987EP0234698A1 Steel sheets for painting and a method of producing the same
09/02/1987EP0234443A2 Process for producing a grain-oriented electrical steel sheet having improved magnetic properties
08/1987
08/26/1987CN87100257A Steel sheets for painting and method of producing the same
08/19/1987EP0232558A1 Process for manufacturing pearlitic steel wire
08/19/1987EP0232537A2 Process for producing grain-oriented electrical steel sheet having improved magnetic properties
08/19/1987EP0232281A1 Ultra high carbon steel alloy and processing thereof
08/19/1987CN86108640A Cold rolled steel sheets having improved press formability
08/18/1987US4687525 Toughness improved by nickel with vanadium and nitrogen
08/12/1987EP0231864A2 Non-ageing steel strip
08/12/1987EP0231653A2 Cold rolled steel sheets having an improved press formability
08/12/1987EP0231620A2 Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy
08/11/1987US4685980 Quick melting and rapid cooling; transformers
08/11/1987US4685321 Method of drape drawing a shadow mask for a color display tube
07/1987
07/29/1987EP0229846A1 Process for producing silicon steel sheet having soft magnetic characteristics
07/28/1987US4683175 Process for producing brass-coated steel wire for the tire cord applications
07/22/1987EP0229646A2 Method for producing a grain-oriented electrical steel sheet having an ultra low watt loss
07/22/1987CN86108451A Method of producing thin steel sheets having an improved processability
07/21/1987CA1224388A1 Method of producing thin gauge oriented silicon steel
07/14/1987US4680062 Method for reducing core losses of grain-oriented silicon steel using liquid jet scribing
07/08/1987EP0228157A2 Method and apparatus for scribing grain oriented silicon steel strip
07/07/1987US4678522 Stretchability, drawability, secondary workability
07/01/1987EP0227199A1 Hot rolling method and apparatus
07/01/1987EP0227001A2 Method for manufacturing tools
06/1987
06/30/1987US4676844 Hot rolling; recrystallization annealing
06/24/1987EP0226446A2 Method of producing thin steel sheets having an improved processability
06/16/1987EP0225619A2 Grain-oriented electrical steel sheet having improved glass film properties and low watt loss and a process for producing same
06/16/1987EP0225414A1 A new steel