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Class Information
Number: 420/40
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Nine percent or more chromium containing > Rare earth containing
Description: Alloy or metallic composition which additionally contains at least one of scandium, yttrium or a lanthanide metal.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8603213 Dispersoid reinforced alloy powder and method of making Dec. 10, 2013
8580190 Durable iron-chromium-aluminum alloy showing minor changes in heat resistance Nov. 12, 2013
8535606 Pitting corrosion resistant non-magnetic stainless steel Sep. 17, 2013
8518234 Oxidation resistant ferritic stainless steels Aug. 27, 2013
8435443 High-temperature alloy May. 7, 2013
8430075 Superaustenitic stainless steel and method of making and use thereof Apr. 30, 2013
8163233 Martensitic stainless steel for welded structures Apr. 24, 2012
8158057 Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells Apr. 17, 2012
8153054 High-temperature alloy Apr. 10, 2012
8147748 Creep-resistant steel Apr. 3, 2012
8137613 Austenitic stainless steel welded joint and austenitic stainless steel welding material Mar. 20, 2012
8071020 High strength Cr-Ni alloy material and seamless pipe for oil well Dec. 6, 2011
8012271 Material for components of a gas turbine Sep. 6, 2011
7847118 Process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated Dec. 7, 2010
7790942 Process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated Sep. 7, 2010
7754144 High Nb, Ta, and Al creep- and oxidation-resistant austenitic stainless steel Jul. 13, 2010
7754305 High Mn austenitic stainless steel Jul. 13, 2010
7744813 Oxidation resistant high creep strength austenitic stainless steel Jun. 29, 2010
7745029 Ferritic steels for solid oxide fuel cells and other high temperature applications Jun. 29, 2010
7601672 High Al stainless steel sheet and honeycomb bodies employing them Oct. 13, 2009
7531053 Fuel cell produced using a metallic material and its method of making May. 12, 2009
7517415 Non-ferromagnetic amorphous steel alloys containing large-atom metals Apr. 14, 2009
7442265 Heat-resistant cast steel excellent in aged ductility and creep rupture strength for hydrogen producing reaction tubes Oct. 28, 2008
7052561 Bulk amorphous steels based on Fe alloys May. 30, 2006
7005105 Fe-Cr-Al alloys for electric resistance wires Feb. 28, 2006
6936217 High-temperature material Aug. 30, 2005
6905651 Ferritic stainless steel alloy and its use as a substrate for catalytic converters Jun. 14, 2005
6846575 Article having turbulation and method of providing turbulation on an article Jan. 25, 2005
6776956 Steel for separators of solid-oxide type fuel cells Aug. 17, 2004
6719855 Fe--cr--al based alloy foil and method for producing the same Apr. 13, 2004
6652991 Ductile NiAl intermetallic compositions Nov. 25, 2003
6582652 Stainless steel alloy having lowered nickel-chromium toxicity and improved biocompatibility Jun. 24, 2003
6582835 Coated ferrite stainless steel sheet usable in the automobile exhaust sector Jun. 24, 2003
6391253 Stainless steel having excellent antibacterial property and method for producing the same May. 21, 2002
6355212 Alloy for corrosion-resistant coatings or surface coatings Mar. 12, 2002
6303904 Weld material, gas metal arc welding method, and welded structure Oct. 16, 2001
6294131 Heat resistant steel Sep. 25, 2001
6203632 Oxidation-resistant metal foil, its use and method for its production Mar. 20, 2001
6146582 Austenitic stainless steel with good oxidation resistance Nov. 14, 2000
6048601 Soft magnetic alloy powder for electromagnetic and magnetic shield, and shielding members containing the same Apr. 11, 2000
5948182 Heat resisting steel Sep. 7, 1999
5945064 Welding material for low chromium (Cr) ferritic steel having high toughness Aug. 31, 1999
5939204 Article for transporting a hot, oxidizing gas Aug. 17, 1999
5939018 Martensitic stainless steels for seamless steel pipe Aug. 17, 1999
5906791 Steel alloys May. 25, 1999
5879619 Hydrogen sulfide corrosion resistant high-Cr and high-Ni alloys Mar. 9, 1999
5866065 Ferritic stainless steel of use in particular for catalyst supports Feb. 2, 1999
5855844 High-strength, notch-ductile precipitation-hardening stainless steel alloy and method of making Jan. 5, 1999
5840135 Aluminum-beryllium alloys having high stiffness and low thermal expansion for memory devices Nov. 24, 1998
5827476 Austenitic stainless steel with good oxidation resistance Oct. 27, 1998

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