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Class Information
Number: 420/61
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Nine percent or more chromium containing > Copper containing > Molybdenum or tungsten containing
Description: Alloy or metallic composition which additionally contains one or more of molybdenum or tungsten.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8663403 High corrosion resistance precipitation hardened martensitic stainless steel Mar. 4, 2014
8608872 High-strength stainless steel pipe excellent in sulfide stress cracking resistance and high-temperature carbonic-acid gas corrosion resistance Dec. 17, 2013
8608873 Stainless steel, cold strip produced from this steel, and method for producing a flat steel product from this steel Dec. 17, 2013
8540933 Stainless austenitic low Ni steel alloy Sep. 24, 2013
8470237 Stainless steel excellent in corrosion resistance, ferritic stainless steel excellent in resistance to crevice corrosion and formability, and ferritic stainless steel excellent in resistance t Jun. 25, 2013
8444916 Stainless steel excellent in corrosion resistance, ferritic stainless steel excellent in resistance to crevice corrosion and formability, and ferritic stainless steel excellent in resistance t May. 21, 2013
8383034 Ferritic stainless steel sheet for water heater excellent in corrosion resistance at welded part and steel sheet toughness Feb. 26, 2013
8361247 High strength corrosion resistant steel Jan. 29, 2013
8163233 Martensitic stainless steel for welded structures Apr. 24, 2012
8071017 Low cost high strength martensitic stainless steel Dec. 6, 2011
8062584 Ferritic stainless steel sheet superior in heat resistance Nov. 22, 2011
8017071 Corrosion-resistant, cold-formable, machinable, high strength, martensitic stainless steel Sep. 13, 2011
7985372 Ferritic stainless steel sheet for use in raw material pipe for forming bellows pipe Jul. 26, 2011
7985306 High corrosion resistance precipitation hardened martensitic stainless steel Jul. 26, 2011
7943085 Ferritic stainless steel for automobile exhaust gas passage components and welded steel pipe May. 17, 2011
7914732 Ferritic stainless steel cast iron, cast part using the ferritic stainless steel cast iron, and process for producing the cast part Mar. 29, 2011
7862666 Highly anticorrosive high strength stainless steel pipe for linepipe and method for manufacturing same Jan. 4, 2011
7842141 Stainless-steel pipe for oil well and process for producing the same Nov. 30, 2010
7767037 High strength stainless steel pipe for use in oil well having superior corrosion resistance and manufacturing method thereof Aug. 3, 2010
7767039 Martensitic stainless steel Aug. 3, 2010
7682559 Cr-bearing heat-resistant steel sheet excellent in workability and method for production thereof Mar. 23, 2010
7341690 Soft Cr-containing steel Mar. 11, 2008
6824672 Use of austenitic stainless steels in applications requiring anti-coking properties Nov. 30, 2004
6756011 High-strength, high corrosion-resistant and non-magnetic stainless steel Jun. 29, 2004
6689312 Alloy composition and improvements in mold components used in the production of glass containers Feb. 10, 2004
6576186 Enhanced machinability precipitation-hardenable stainless steel for critical applications Jun. 10, 2003
6485680 Resulfurized austenitic stainless steel Nov. 26, 2002
6440579 Process for producing a drawn wire made of stainless steel, in particular a wire for reinforcing tires, and wire obtained by the process Aug. 27, 2002
6344094 Ferritic-austenitic two-phase stainless steel Feb. 5, 2002
6290904 Welding materials for high-Cr steels Sep. 18, 2001
6274084 Corrosion-resistant low-nickel austenitic stainless steel Aug. 14, 2001
6245289 Stainless steel alloy for pulp refiner plate Jun. 12, 2001
6110300 Tool for glass molding operations and method of manufacture thereof Aug. 29, 2000
6096441 Austenoferritic stainless steel having a very low nickel content and a high tensile elongation Aug. 1, 2000
6056917 Austenitic stainless steel having a very low nickel content May. 2, 2000
5985209 Martensitic steel for line pipe having excellent corrosion resistance and weldability Nov. 16, 1999
5824265 Stainless steel alloy for pulp refiner plate Oct. 20, 1998
5820699 Martensitic stainless steel having excellent hot workability and sulfide stress cracking resistance Oct. 13, 1998
5785924 Steel useful for the manufacture of molds for the injection molding of plastic Jul. 28, 1998
5714114 High hardness martensitic stainless steel with good pitting corrosion resistance Feb. 3, 1998
5686044 Austenitic stainless steels for press forming Nov. 11, 1997
5672215 Duplex stainless steel excellent in corrosion resistance Sep. 30, 1997
5630983 Precipitation hardening stainless steels May. 20, 1997
5626817 Austenitic heat resistant steel excellent in elevated temperature strength May. 6, 1997
5489345 Steel for use in exhaust manifolds of automobiles Feb. 6, 1996
5445686 Fe-Cu alloy sheet having an alloy structure of high uniformity Aug. 29, 1995
5240516 High-chromium ferritic, heat-resistant steel having improved resistance to copper checking Aug. 31, 1993
5230752 Ferritic stainless steel and process for producing such a steel Jul. 27, 1993
5051234 High corrosion-resistant electromagnetic stainless steels Sep. 24, 1991
5035855 Martensitic precipitation-hardenable stainless steel Jul. 30, 1991

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